Bump github.com/opencontainers/runc from 1.1.0 to 1.1.5

Bumps [github.com/opencontainers/runc](https://github.com/opencontainers/runc) from 1.1.0 to 1.1.5.
- [Release notes](https://github.com/opencontainers/runc/releases)
- [Changelog](https://github.com/opencontainers/runc/blob/v1.1.5/CHANGELOG.md)
- [Commits](https://github.com/opencontainers/runc/compare/v1.1.0...v1.1.5)

---
updated-dependencies:
- dependency-name: github.com/opencontainers/runc
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

.circleci/config.yml

@@ -3,13 +3,13 @@ jobs:
   build:
     working_directory: ~/build
     docker:
-      - image: circleci/golang:latest
+      - image: cimg/go:1.18
     steps:
       - checkout
       - setup_remote_docker:
-          version: 17.05.0-ce
+          version: 20.10.11
       - run: make image
-      - deploy: 
+      - deploy:
           command: |
             if [[ "$CIRCLE_BRANCH" == "master" ]]; then
               docker tag ctop quay.io/vektorlab/ctop:latest

.gitignore

@@ -1,3 +1,4 @@
 ctop
 .idea
-/vendor/
+/vendor/
+*.log

Dockerfile

@@ -1,4 +1,4 @@
-FROM quay.io/vektorcloud/go:1.12
+FROM quay.io/vektorcloud/go:1.18
 
 RUN apk add --no-cache make
 

Makefile

@@ -1,8 +1,7 @@
 NAME=ctop
 VERSION=$(shell cat VERSION)
 BUILD=$(shell git rev-parse --short HEAD)
-EXT_LD_FLAGS="-Wl,--allow-multiple-definition"
-LD_FLAGS="-w -X main.version=$(VERSION) -X main.build=$(BUILD) -extldflags=$(EXT_LD_FLAGS)"
+LD_FLAGS="-w -X main.version=$(VERSION) -X main.build=$(BUILD)"
 
 clean:
 	rm -rf _build/ release/
@@ -11,27 +10,28 @@ build:
 	go mod download
 	CGO_ENABLED=0 go build -tags release -ldflags $(LD_FLAGS) -o ctop
 
-build-dev:
-	go build -ldflags "-w -X main.version=$(VERSION)-dev -X main.build=$(BUILD) -extldflags=$(EXT_LD_FLAGS)"
-
 build-all:
 	mkdir -p _build
-	GOOS=darwin  GOARCH=amd64 go build -tags release -ldflags $(LD_FLAGS) -o _build/ctop-$(VERSION)-darwin-amd64
-	GOOS=linux   GOARCH=amd64 go build -tags release -ldflags $(LD_FLAGS) -o _build/ctop-$(VERSION)-linux-amd64
-	GOOS=linux   GOARCH=arm   go build -tags release -ldflags $(LD_FLAGS) -o _build/ctop-$(VERSION)-linux-arm
-	GOOS=linux   GOARCH=arm64 go build -tags release -ldflags $(LD_FLAGS) -o _build/ctop-$(VERSION)-linux-arm64
-	GOOS=windows GOARCH=amd64 go build -tags release -ldflags $(LD_FLAGS) -o _build/ctop-$(VERSION)-windows-amd64
+	GOOS=darwin  GOARCH=amd64   CGO_ENABLED=0 go build -tags release -ldflags $(LD_FLAGS) -o _build/ctop-$(VERSION)-darwin-amd64
+	GOOS=linux   GOARCH=amd64   CGO_ENABLED=0 go build -tags release -ldflags $(LD_FLAGS) -o _build/ctop-$(VERSION)-linux-amd64
+	GOOS=linux   GOARCH=arm     CGO_ENABLED=0 go build -tags release -ldflags $(LD_FLAGS) -o _build/ctop-$(VERSION)-linux-arm
+	GOOS=linux   GOARCH=arm64   CGO_ENABLED=0 go build -tags release -ldflags $(LD_FLAGS) -o _build/ctop-$(VERSION)-linux-arm64
+	GOOS=linux   GOARCH=ppc64le CGO_ENABLED=0 go build -tags release -ldflags $(LD_FLAGS) -o _build/ctop-$(VERSION)-linux-ppc64le
+	GOOS=windows GOARCH=amd64   CGO_ENABLED=0 go build -tags release -ldflags $(LD_FLAGS) -o _build/ctop-$(VERSION)-windows-amd64
 	cd _build; sha256sum * > sha256sums.txt
 
+run-dev:
+	rm -f ctop.sock ctop
+	go build -ldflags $(LD_FLAGS) -o ctop
+	CTOP_DEBUG=1 ./ctop
+
 image:
 	docker build -t ctop -f Dockerfile .
 
 release:
 	mkdir release
-	go get github.com/progrium/gh-release/...
 	cp _build/* release
-	cd release; sha256sum --quiet --check sha256sums.txt
-	gh-release create bcicen/$(NAME) $(VERSION) \
-		$(shell git rev-parse --abbrev-ref HEAD) $(VERSION)
+	cd release; sha256sum --quiet --check sha256sums.txt && \
+	gh release create v$(VERSION) -d -t v$(VERSION) *
 
 .PHONY: build

README.md

@@ -2,14 +2,14 @@
 
 #
 
-![release][release] ![homebrew][homebrew]
+![release][release] ![homebrew][homebrew] ![macports][macports] ![scoop][scoop]
 
 Top-like interface for container metrics
 
 `ctop` provides a concise and condensed overview of real-time metrics for multiple containers:
 <p align="center"><img src="_docs/img/grid.gif" alt="ctop"/></p>
 
-as well as an [single container view][single_view] for inspecting a specific container.
+as well as a [single container view][single_view] for inspecting a specific container.
 
 `ctop` comes with built-in support for Docker and runC; connectors for other container and cluster systems are planned for future releases.
 
@@ -17,10 +17,32 @@ as well as an [single container view][single_view] for inspecting a specific con
 
 Fetch the [latest release](https://github.com/bcicen/ctop/releases) for your platform:
 
-#### Linux
+#### Debian/Ubuntu
+
+Maintained by a [third party](https://packages.azlux.fr/)
+```bash
+sudo apt-get install ca-certificates curl gnupg lsb-release
+curl -fsSL https://azlux.fr/repo.gpg.key | sudo gpg --dearmor -o /usr/share/keyrings/azlux-archive-keyring.gpg
+echo \
+  "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/azlux-archive-keyring.gpg] http://packages.azlux.fr/debian \
+  $(lsb_release -cs) main" | sudo tee /etc/apt/sources.list.d/azlux.list >/dev/null
+sudo apt-get update
+sudo apt-get install docker-ctop
+```
+
+#### Arch
 
 ```bash
-sudo wget https://github.com/bcicen/ctop/releases/download/v0.7.3/ctop-0.7.3-linux-amd64 -O /usr/local/bin/ctop
+sudo pacman -S ctop
+```
+
+_`ctop` is also available for Arch in the [AUR](https://aur.archlinux.org/packages/ctop-bin/)_
+
+
+#### Linux (Generic)
+
+```bash
+sudo wget https://github.com/bcicen/ctop/releases/download/v0.7.7/ctop-0.7.7-linux-amd64 -O /usr/local/bin/ctop
 sudo chmod +x /usr/local/bin/ctop
 ```
 
@@ -31,10 +53,22 @@ brew install ctop
 ```
 or
 ```bash
-sudo curl -Lo /usr/local/bin/ctop https://github.com/bcicen/ctop/releases/download/v0.7.3/ctop-0.7.3-darwin-amd64
+sudo port install ctop
+```
+or
+```bash
+sudo curl -Lo /usr/local/bin/ctop https://github.com/bcicen/ctop/releases/download/v0.7.7/ctop-0.7.7-darwin-amd64
 sudo chmod +x /usr/local/bin/ctop
 ```
 
+#### Windows
+
+`ctop` is available in [scoop](https://scoop.sh/):
+
+```powershell
+scoop install ctop
+```
+
 #### Docker
 
 ```bash
@@ -44,8 +78,6 @@ docker run --rm -ti \
   quay.io/vektorlab/ctop:latest
 ```
 
-`ctop` is also available for Arch in the [AUR](https://aur.archlinux.org/packages/ctop-bin/)
-
 ## Building
 
 Build steps can be found [here][build].
@@ -56,7 +88,9 @@ Build steps can be found [here][build].
 
 ### Config file
 
-While running, use `S` to save the current filters, sort field, and other options to a default config path. These settings will be loaded and applied the next time `ctop` is started.
+While running, use `S` to save the current filters, sort field, and other options to a default config path (`~/.config/ctop/config` on XDG systems, else `~/.ctop`).
+
+Config file values will be loaded and applied the next time `ctop` is started.
 
 ### Options
 
@@ -68,29 +102,34 @@ Option | Description
 `-i`  | invert default colors
 `-r`	| reverse container sort order
 `-s`  | select initial container sort field
-`-scale-cpu`	| show cpu as % of system total
 `-v`	| output version information and exit
-`-shell` | specify shell (default: sh)
 
 ### Keybindings
 
-Key | Action
---- | ---
-`<enter>` | Open container menu
-`a` | Toggle display of all (running and non-running) containers
-`f` | Filter displayed containers (`esc` to clear when open)
-`H` | Toggle ctop header
-`h` | Open help dialog
-`s` | Select container sort field
-`r` | Reverse container sort order
-`o` | Open single view
-`l` | View container logs (`t` to toggle timestamp when open)
-`e` | Exec Shell
-`S` | Save current configuration to file
-`q` | Quit ctop
+|           Key            | Action                                                     |
+| :----------------------: | ---------------------------------------------------------- |
+| <kbd>&lt;ENTER&gt;</kbd> | Open container menu                                        |
+|       <kbd>a</kbd>       | Toggle display of all (running and non-running) containers |
+|       <kbd>f</kbd>       | Filter displayed containers (`esc` to clear when open)     |
+|       <kbd>H</kbd>       | Toggle ctop header                                         |
+|       <kbd>h</kbd>       | Open help dialog                                           |
+|       <kbd>s</kbd>       | Select container sort field                                |
+|       <kbd>r</kbd>       | Reverse container sort order                               |
+|       <kbd>o</kbd>       | Open single view                                           |
+|       <kbd>l</kbd>       | View container logs (`t` to toggle timestamp when open)    |
+|       <kbd>e</kbd>       | Exec Shell                                                 |
+|       <kbd>c</kbd>       | Configure columns                                          |
+|       <kbd>S</kbd>       | Save current configuration to file                         |
+|       <kbd>q</kbd>       | Quit ctop                                                  |
 
 [build]: _docs/build.md
 [connectors]: _docs/connectors.md
 [single_view]: _docs/single.md
 [release]: https://img.shields.io/github/release/bcicen/ctop.svg "ctop"
 [homebrew]: https://img.shields.io/homebrew/v/ctop.svg "ctop"
+[macports]: https://repology.org/badge/version-for-repo/macports/ctop.svg?header=macports "ctop"
+[scoop]: https://img.shields.io/scoop/v/ctop?bucket=main "ctop"
+
+## Alternatives
+
+See [Awesome Docker list](https://github.com/veggiemonk/awesome-docker/blob/master/README.md#terminal) for similar tools to work with Docker. 

VERSION

@@ -1 +1 @@
-0.7.3
+0.7.7

_docs/build.md

@@ -1,10 +1,8 @@
 # Build
 
-To build `ctop` from source, ensure you have [dep](https://github.com/golang/dep) installed and run:
+To build `ctop` from source, simply clone the repo and run:
 
 ```bash
-go get github.com/bcicen/ctop && \
-cd $GOPATH/src/github.com/bcicen/ctop && \
 make build
 ```
 
@@ -16,5 +14,8 @@ make image
 Now you can run your local image:
 
 ```bash
-docker run -ti --name ctop --rm -v /var/run/docker.sock:/var/run/docker.sock ctop
+docker run --rm -ti \
+  --name ctop \
+  -v /var/run/docker.sock:/var/run/docker.sock \
+  ctop:latest
 ```

_docs/debug.md

@@ -54,3 +54,18 @@ CTOP_DEBUG=1 CTOP_DEBUG_TCP=1 ./ctop
 ```
 
 A TCP listener for streaming log messages will be started on the default listen address(`0.0.0.0:9000`)
+
+## Log to file
+
+You can also log to a file by specifying `CTOP_DEBUG_FILE=/path/to/ctop.log` environment variable:
+```sh
+CTOP_DEBUG=1 CTOP_DEBUG_FILE=ctop.log ./ctop
+```
+
+This is useful for GoLand to see logs right in debug panel: 
+* Edit Run configuration 
+* Go to Logs tab
+* Specify this log file in "Log file to be shown in console".
+Then during debugging you'll see the log tab in debug panel:
+
+![Debug in GoLand](img/goland_debug.png)

config/columns.go

@@ -0,0 +1,175 @@
+package config
+
+import (
+	"strings"
+)
+
+// defaults
+var defaultColumns = []Column{
+	{
+		Name:    "status",
+		Label:   "Status Indicator",
+		Enabled: true,
+	},
+	{
+		Name:    "name",
+		Label:   "Container Name",
+		Enabled: true,
+	},
+	{
+		Name:    "id",
+		Label:   "Container ID",
+		Enabled: true,
+	},
+	{
+		Name:    "image",
+		Label:   "Image name",
+		Enabled: false,
+	},
+	{
+		Name:    "ports",
+		Label:   "Exposed ports",
+		Enabled: false,
+	},
+	{
+		Name:    "IPs",
+		Label:   "Exposed IPs",
+		Enabled: false,
+	},
+	{
+		Name:    "created",
+		Label:   "Date created",
+		Enabled: false,
+	},
+	{
+		Name:    "cpu",
+		Label:   "CPU Usage",
+		Enabled: true,
+	},
+	{
+		Name:    "cpus",
+		Label:   "CPU Usage (% of system total)",
+		Enabled: false,
+	},
+	{
+		Name:    "mem",
+		Label:   "Memory Usage",
+		Enabled: true,
+	},
+	{
+		Name:    "net",
+		Label:   "Network RX/TX",
+		Enabled: true,
+	},
+	{
+		Name:    "io",
+		Label:   "Disk IO Read/Write",
+		Enabled: true,
+	},
+	{
+		Name:    "pids",
+		Label:   "Container PID Count",
+		Enabled: true,
+	},
+	Column{
+		Name:    "uptime",
+		Label:   "Running uptime duration",
+		Enabled: true,
+	},
+}
+
+type Column struct {
+	Name    string
+	Label   string
+	Enabled bool
+}
+
+// ColumnsString returns an ordered and comma-delimited string of currently enabled Columns
+func ColumnsString() string { return strings.Join(EnabledColumns(), ",") }
+
+// EnabledColumns returns an ordered array of enabled column names
+func EnabledColumns() (a []string) {
+	lock.RLock()
+	defer lock.RUnlock()
+	for _, col := range GlobalColumns {
+		if col.Enabled {
+			a = append(a, col.Name)
+		}
+	}
+	return a
+}
+
+// ColumnToggle toggles the enabled status of a given column name
+func ColumnToggle(name string) {
+	col := GlobalColumns[colIndex(name)]
+	col.Enabled = !col.Enabled
+	log.Noticef("config change [column-%s]: %t -> %t", col.Name, !col.Enabled, col.Enabled)
+}
+
+// ColumnLeft moves the column with given name up one position, if possible
+func ColumnLeft(name string) {
+	idx := colIndex(name)
+	if idx > 0 {
+		swapCols(idx, idx-1)
+	}
+}
+
+// ColumnRight moves the column with given name up one position, if possible
+func ColumnRight(name string) {
+	idx := colIndex(name)
+	if idx < len(GlobalColumns)-1 {
+		swapCols(idx, idx+1)
+	}
+}
+
+// Set Column order and enabled status from one or more provided Column names
+func SetColumns(names []string) {
+	var (
+		n          int
+		curColStr  = ColumnsString()
+		newColumns = make([]*Column, len(GlobalColumns))
+	)
+
+	lock.Lock()
+
+	// add enabled columns by name
+	for _, name := range names {
+		newColumns[n] = popColumn(name)
+		newColumns[n].Enabled = true
+		n++
+	}
+
+	// extend with omitted columns as disabled
+	for _, col := range GlobalColumns {
+		newColumns[n] = col
+		newColumns[n].Enabled = false
+		n++
+	}
+
+	GlobalColumns = newColumns
+	lock.Unlock()
+
+	log.Noticef("config change [columns]: %s -> %s", curColStr, ColumnsString())
+}
+
+func swapCols(i, j int) { GlobalColumns[i], GlobalColumns[j] = GlobalColumns[j], GlobalColumns[i] }
+
+func popColumn(name string) *Column {
+	idx := colIndex(name)
+	if idx < 0 {
+		panic("no such column name: " + name)
+	}
+	col := GlobalColumns[idx]
+	GlobalColumns = append(GlobalColumns[:idx], GlobalColumns[idx+1:]...)
+	return col
+}
+
+// return index of column with given name, if any
+func colIndex(name string) int {
+	for n, c := range GlobalColumns {
+		if c.Name == name {
+			return n
+		}
+	}
+	return -1
+}

config/file.go

@@ -3,6 +3,7 @@ package config
 import (
 	"fmt"
 	"os"
+	"path/filepath"
 	"regexp"
 	"strings"
 
@@ -19,19 +20,28 @@ type File struct {
 }
 
 func exportConfig() File {
+	// update columns param from working config
+	Update("columns", ColumnsString())
+
+	lock.RLock()
+	defer lock.RUnlock()
+
 	c := File{
 		Options: make(map[string]string),
 		Toggles: make(map[string]bool),
 	}
+
 	for _, p := range GlobalParams {
 		c.Options[p.Key] = p.Val
 	}
 	for _, sw := range GlobalSwitches {
 		c.Toggles[sw.Key] = sw.Val
 	}
+
 	return c
 }
 
+//
 func Read() error {
 	var config File
 
@@ -43,13 +53,26 @@ func Read() error {
 	if _, err := toml.DecodeFile(path, &config); err != nil {
 		return err
 	}
-
 	for k, v := range config.Options {
 		Update(k, v)
 	}
 	for k, v := range config.Toggles {
 		UpdateSwitch(k, v)
 	}
+
+	// set working column config, if provided
+	colStr := GetVal("columns")
+	if len(colStr) > 0 {
+		var colNames []string
+		for _, s := range strings.Split(colStr, ",") {
+			s = strings.TrimSpace(s)
+			if s != "" {
+				colNames = append(colNames, s)
+			}
+		}
+		SetColumns(colNames)
+	}
+
 	return nil
 }
 
@@ -59,7 +82,7 @@ func Write() (path string, err error) {
 		return path, err
 	}
 
-	cfgdir := basedir(path)
+	cfgdir := filepath.Dir(path)
 	// create config dir if not exist
 	if _, err := os.Stat(cfgdir); err != nil {
 		err = os.MkdirAll(cfgdir, 0755)
@@ -68,6 +91,13 @@ func Write() (path string, err error) {
 		}
 	}
 
+	// remove prior to writing new file
+	if err := os.Remove(path); err != nil {
+		if !os.IsNotExist(err) {
+			return path, err
+		}
+	}
+
 	file, err := os.OpenFile(path, os.O_RDWR|os.O_CREATE, 0644)
 	if err != nil {
 		return path, fmt.Errorf("failed to open config for writing: %s", err)
@@ -112,8 +142,3 @@ func xdgSupport() bool {
 	}
 	return false
 }
-
-func basedir(path string) string {
-	parts := strings.Split(path, "/")
-	return strings.Join((parts[0 : len(parts)-1]), "/")
-}

config/main.go

@@ -3,6 +3,7 @@ package config
 import (
 	"fmt"
 	"os"
+	"sync"
 
 	"github.com/bcicen/ctop/logging"
 )
@@ -10,17 +11,24 @@ import (
 var (
 	GlobalParams   []*Param
 	GlobalSwitches []*Switch
+	GlobalColumns  []*Column
+	lock           sync.RWMutex
 	log            = logging.Init()
 )
 
 func Init() {
-	for _, p := range params {
+	for _, p := range defaultParams {
 		GlobalParams = append(GlobalParams, p)
-		log.Infof("loaded config param: %s: %s", quote(p.Key), quote(p.Val))
+		log.Infof("loaded default config param [%s]: %s", quote(p.Key), quote(p.Val))
 	}
-	for _, s := range switches {
+	for _, s := range defaultSwitches {
 		GlobalSwitches = append(GlobalSwitches, s)
-		log.Infof("loaded config switch: %s: %t", quote(s.Key), s.Val)
+		log.Infof("loaded default config switch [%s]: %t", quote(s.Key), s.Val)
+	}
+	for _, c := range defaultColumns {
+		x := c
+		GlobalColumns = append(GlobalColumns, &x)
+		log.Infof("loaded default widget config [%s]: %t", quote(x.Name), x.Enabled)
 	}
 }
 

config/param.go

@@ -1,7 +1,7 @@
 package config
 
 // defaults
-var params = []*Param{
+var defaultParams = []*Param{
 	&Param{
 		Key:   "filterStr",
 		Val:   "",
@@ -13,9 +13,9 @@ var params = []*Param{
 		Label: "Container Sort Field",
 	},
 	&Param{
-		Key:   "shell",
-		Val:   "sh",
-		Label: "Shell",
+		Key:   "columns",
+		Val:   "status,name,id,cpu,mem,net,io,pids,uptime",
+		Label: "Enabled Columns",
 	},
 }
 
@@ -27,6 +27,9 @@ type Param struct {
 
 // Get Param by key
 func Get(k string) *Param {
+	lock.RLock()
+	defer lock.RUnlock()
+
 	for _, p := range GlobalParams {
 		if p.Key == k {
 			return p
@@ -43,7 +46,10 @@ func GetVal(k string) string {
 // Set param value
 func Update(k, v string) {
 	p := Get(k)
-	log.Noticef("config change: %s: %s -> %s", k, quote(p.Val), quote(v))
+	log.Noticef("config change [%s]: %s -> %s", k, quote(p.Val), quote(v))
+
+	lock.Lock()
+	defer lock.Unlock()
 	p.Val = v
 	// log.Errorf("ignoring update for non-existant parameter: %s", k)
 }

config/switch.go

@@ -1,7 +1,7 @@
 package config
 
 // defaults
-var switches = []*Switch{
+var defaultSwitches = []*Switch{
 	&Switch{
 		Key:   "sortReversed",
 		Val:   false,
@@ -22,11 +22,6 @@ var switches = []*Switch{
 		Val:   true,
 		Label: "Enable status header",
 	},
-	&Switch{
-		Key:   "scaleCpu",
-		Val:   false,
-		Label: "Show CPU as %% of system total",
-	},
 }
 
 type Switch struct {
@@ -37,6 +32,9 @@ type Switch struct {
 
 // GetSwitch returns Switch by key
 func GetSwitch(k string) *Switch {
+	lock.RLock()
+	defer lock.RUnlock()
+
 	for _, sw := range GlobalSwitches {
 		if sw.Key == k {
 			return sw
@@ -52,8 +50,12 @@ func GetSwitchVal(k string) bool {
 
 func UpdateSwitch(k string, val bool) {
 	sw := GetSwitch(k)
+
+	lock.Lock()
+	defer lock.Unlock()
+
 	if sw.Val != val {
-		log.Noticef("config change: %s: %t -> %t", k, sw.Val, val)
+		log.Noticef("config change [%s]: %t -> %t", k, sw.Val, val)
 		sw.Val = val
 	}
 }
@@ -61,8 +63,11 @@ func UpdateSwitch(k string, val bool) {
 // Toggle a boolean switch
 func Toggle(k string) {
 	sw := GetSwitch(k)
-	newVal := !sw.Val
-	log.Noticef("config change: %s: %t -> %t", k, sw.Val, newVal)
-	sw.Val = newVal
+
+	lock.Lock()
+	defer lock.Unlock()
+
+	sw.Val = !sw.Val
+	log.Noticef("config change [%s]: %t -> %t", k, !sw.Val, sw.Val)
 	//log.Errorf("ignoring toggle for non-existant switch: %s", k)
 }

connector/collector/docker.go

@@ -1,7 +1,6 @@
 package collector
 
 import (
-	"github.com/bcicen/ctop/config"
 	"github.com/bcicen/ctop/models"
 	api "github.com/fsouza/go-dockerclient"
 )
@@ -16,15 +15,13 @@ type Docker struct {
 	done       chan bool
 	lastCpu    float64
 	lastSysCpu float64
-	scaleCpu   bool
 }
 
 func NewDocker(client *api.Client, id string) *Docker {
 	return &Docker{
-		Metrics:  models.Metrics{},
-		id:       id,
-		client:   client,
-		scaleCpu: config.GetSwitchVal("scaleCpu"),
+		Metrics: models.Metrics{},
+		id:      id,
+		client:  client,
 	}
 }
 
@@ -74,22 +71,23 @@ func (c *Docker) Logs() LogCollector {
 
 // Stop collector
 func (c *Docker) Stop() {
+	c.running = false
 	c.done <- true
 }
 
 func (c *Docker) ReadCPU(stats *api.Stats) {
-	ncpus := float64(len(stats.CPUStats.CPUUsage.PercpuUsage))
+	ncpus := uint8(stats.CPUStats.OnlineCPUs)
+	if ncpus == 0 {
+		ncpus = uint8(len(stats.CPUStats.CPUUsage.PercpuUsage))
+	}
 	total := float64(stats.CPUStats.CPUUsage.TotalUsage)
 	system := float64(stats.CPUStats.SystemCPUUsage)
 
 	cpudiff := total - c.lastCpu
 	syscpudiff := system - c.lastSysCpu
 
-	if c.scaleCpu {
-		c.CPUUtil = round((cpudiff / syscpudiff * 100))
-	} else {
-		c.CPUUtil = round((cpudiff / syscpudiff * 100) * ncpus)
-	}
+	c.NCpus = ncpus
+	c.CPUUtil = percent(cpudiff, syscpudiff)
 	c.lastCpu = total
 	c.lastSysCpu = system
 	c.Pids = int(stats.PidsStats.Current)
@@ -114,10 +112,10 @@ func (c *Docker) ReadIO(stats *api.Stats) {
 	var read, write int64
 	for _, blk := range stats.BlkioStats.IOServiceBytesRecursive {
 		if blk.Op == "Read" {
-			read = int64(blk.Value)
+			read += int64(blk.Value)
 		}
 		if blk.Op == "Write" {
-			write = int64(blk.Value)
+			write += int64(blk.Value)
 		}
 	}
 	c.IOBytesRead, c.IOBytesWrite = read, write

connector/collector/docker_logs.go

@@ -47,9 +47,15 @@ func (l *DockerLogs) Stream() chan models.Log {
 	go func() {
 		scanner := bufio.NewScanner(r)
 		for scanner.Scan() {
-			parts := strings.Split(scanner.Text(), " ")
-			ts := l.parseTime(parts[0])
-			logCh <- models.Log{Timestamp: ts, Message: strings.Join(parts[1:], " ")}
+			parts := strings.SplitN(scanner.Text(), " ", 2)
+			if len(parts) == 0 {
+				continue
+			}
+			if len(parts) < 2 {
+				logCh <- models.Log{Timestamp: l.parseTime(""), Message: parts[0]}
+			} else {
+				logCh <- models.Log{Timestamp: l.parseTime(parts[0]), Message: parts[1]}
+			}
 		}
 	}()
 
@@ -74,12 +80,12 @@ func (l *DockerLogs) Stream() chan models.Log {
 func (l *DockerLogs) Stop() { l.done <- true }
 
 func (l *DockerLogs) parseTime(s string) time.Time {
-	ts, err := time.Parse("2006-01-02T15:04:05.000000000Z", s)
+	ts, err := time.Parse(time.RFC3339Nano, s)
 	if err == nil {
 		return ts
 	}
 
-	ts, err2 := time.Parse("2006-01-02T15:04:05.000000000Z", l.stripPfx(s))
+	ts, err2 := time.Parse(time.RFC3339Nano, l.stripPfx(s))
 	if err2 == nil {
 		return ts
 	}

connector/collector/mock.go

@@ -1,3 +1,4 @@
+//go:build !release
 // +build !release
 
 package collector
@@ -38,6 +39,7 @@ func (c *Mock) Start() {
 }
 
 func (c *Mock) Stop() {
+	c.running = false
 	c.done = true
 }
 

connector/collector/proc.go

@@ -1,16 +1,18 @@
+//go:build linux
 // +build linux
 
 package collector
 
 import (
 	linuxproc "github.com/c9s/goprocinfo/linux"
-	"github.com/opencontainers/runc/libcontainer/system"
 )
 
 var sysMemTotal = getSysMemTotal()
-var clockTicksPerSecond = uint64(system.GetClockTicks())
 
-const nanoSecondsPerSecond = 1e9
+const (
+	clockTicksPerSecond  uint64 = 100
+	nanoSecondsPerSecond        = 1e9
+)
 
 func getSysMemTotal() int64 {
 	stat, err := linuxproc.ReadMemInfo("/proc/meminfo")

connector/collector/runc.go

@@ -1,3 +1,4 @@
+//go:build linux
 // +build linux
 
 package collector
@@ -5,10 +6,11 @@ package collector
 import (
 	"time"
 
-	"github.com/bcicen/ctop/config"
-	"github.com/bcicen/ctop/models"
 	"github.com/opencontainers/runc/libcontainer"
 	"github.com/opencontainers/runc/libcontainer/cgroups"
+	"github.com/opencontainers/runc/types"
+
+	"github.com/bcicen/ctop/models"
 )
 
 // Runc collector
@@ -22,7 +24,6 @@ type Runc struct {
 	interval   int // collection interval, in seconds
 	lastCpu    float64
 	lastSysCpu float64
-	scaleCpu   bool
 }
 
 func NewRunc(libc libcontainer.Container) *Runc {
@@ -31,7 +32,6 @@ func NewRunc(libc libcontainer.Container) *Runc {
 		id:       libc.ID(),
 		libc:     libc,
 		interval: 1,
-		scaleCpu: config.GetSwitchVal("scaleCpu"),
 	}
 	return c
 }
@@ -47,6 +47,7 @@ func (c *Runc) Start() {
 }
 
 func (c *Runc) Stop() {
+	c.running = false
 	c.done = true
 }
 
@@ -86,18 +87,15 @@ func (c *Runc) run() {
 
 func (c *Runc) ReadCPU(stats *cgroups.Stats) {
 	u := stats.CpuStats.CpuUsage
-	ncpus := float64(len(u.PercpuUsage))
+	ncpus := uint8(len(u.PercpuUsage))
 	total := float64(u.TotalUsage)
 	system := float64(getSysCPUUsage())
 
 	cpudiff := total - c.lastCpu
 	syscpudiff := system - c.lastSysCpu
 
-	if c.scaleCpu {
-		c.CPUUtil = round((cpudiff / syscpudiff * 100))
-	} else {
-		c.CPUUtil = round((cpudiff / syscpudiff * 100) * ncpus)
-	}
+	c.NCpus = ncpus
+	c.CPUUtil = percent(cpudiff, syscpudiff)
 	c.lastCpu = total
 	c.lastSysCpu = system
 	c.Pids = int(stats.PidsStats.Current)
@@ -112,7 +110,7 @@ func (c *Runc) ReadMem(stats *cgroups.Stats) {
 	c.MemPercent = percent(float64(c.MemUsage), float64(c.MemLimit))
 }
 
-func (c *Runc) ReadNet(interfaces []*libcontainer.NetworkInterface) {
+func (c *Runc) ReadNet(interfaces []*types.NetworkInterface) {
 	var rx, tx int64
 	for _, network := range interfaces {
 		rx += int64(network.RxBytes)

connector/docker.go

@@ -4,6 +4,10 @@ import (
 	"fmt"
 	"strings"
 	"sync"
+	"time"
+
+	"github.com/op/go-logging"
+	"github.com/hako/durafmt"
 
 	"github.com/bcicen/ctop/connector/collector"
 	"github.com/bcicen/ctop/connector/manager"
@@ -13,10 +17,25 @@ import (
 
 func init() { enabled["docker"] = NewDocker }
 
+var actionToStatus = map[string]string{
+	"start":   "running",
+	"die":     "exited",
+	"stop":    "exited",
+	"pause":   "paused",
+	"unpause": "running",
+}
+
+type StatusUpdate struct {
+	Cid    string
+	Field  string // "status" or "health"
+	Status string
+}
+
 type Docker struct {
 	client       *api.Client
 	containers   map[string]*container.Container
 	needsRefresh chan string // container IDs requiring refresh
+	statuses     chan StatusUpdate
 	closed       chan struct{}
 	lock         sync.RWMutex
 }
@@ -31,6 +50,7 @@ func NewDocker() (Connector, error) {
 		client:       client,
 		containers:   make(map[string]*container.Container),
 		needsRefresh: make(chan string, 60),
+		statuses:     make(chan StatusUpdate, 60),
 		closed:       make(chan struct{}),
 		lock:         sync.RWMutex{},
 	}
@@ -48,6 +68,7 @@ func NewDocker() (Connector, error) {
 	log.Debugf("docker-connector ServerVersion: %s", info.ServerVersion)
 
 	go cm.Loop()
+	go cm.LoopStatuses()
 	cm.refreshAll()
 	go cm.watchEvents()
 	return cm, nil
@@ -60,22 +81,43 @@ func (cm *Docker) Wait() struct{} { return <-cm.closed }
 func (cm *Docker) watchEvents() {
 	log.Info("docker event listener starting")
 	events := make(chan *api.APIEvents)
-	cm.client.AddEventListener(events)
+	opts := api.EventsOptions{Filters: map[string][]string{
+		"type":  {"container"},
+		"event": {"create", "start", "health_status", "pause", "unpause", "stop", "die", "destroy"},
+	},
+	}
+	cm.client.AddEventListenerWithOptions(opts, events)
 
 	for e := range events {
-		if e.Type != "container" {
-			continue
-		}
-
-		actionName := strings.Split(e.Action, ":")[0]
-
+		actionName := e.Action
 		switch actionName {
-		case "start", "die", "pause", "unpause", "health_status":
-			log.Debugf("handling docker event: action=%s id=%s", e.Action, e.ID)
+		// most frequent event is a health checks
+		case "health_status: healthy", "health_status: unhealthy":
+			sepIdx := strings.Index(actionName, ": ")
+			healthStatus := e.Action[sepIdx+2:]
+			if log.IsEnabledFor(logging.DEBUG) {
+				log.Debugf("handling docker event: action=health_status id=%s %s", e.ID, healthStatus)
+			}
+			cm.statuses <- StatusUpdate{e.ID, "health", healthStatus}
+		case "create":
+			if log.IsEnabledFor(logging.DEBUG) {
+				log.Debugf("handling docker event: action=create id=%s", e.ID)
+			}
 			cm.needsRefresh <- e.ID
 		case "destroy":
-			log.Debugf("handling docker event: action=%s id=%s", e.Action, e.ID)
+			if log.IsEnabledFor(logging.DEBUG) {
+				log.Debugf("handling docker event: action=destroy id=%s", e.ID)
+			}
 			cm.delByID(e.ID)
+		default:
+			// check if this action changes status e.g. start -> running
+			status := actionToStatus[actionName]
+			if status != "" {
+				if log.IsEnabledFor(logging.DEBUG) {
+					log.Debugf("handling docker event: action=%s id=%s %s", actionName, e.ID, status)
+				}
+				cm.statuses <- StatusUpdate{e.ID, "status", status}
+			}
 		}
 	}
 	log.Info("docker event listener exited")
@@ -100,6 +142,23 @@ func portsFormat(ports map[api.Port][]api.PortBinding) string {
 	return strings.Join(append(exposed, published...), "\n")
 }
 
+func webPort(ports map[api.Port][]api.PortBinding) string {
+	for _, v := range ports {
+		if len(v) == 0 {
+			continue
+		}
+		for _, binding := range v {
+			publishedIp := binding.HostIP
+			if publishedIp == "0.0.0.0" {
+				publishedIp = "localhost"
+			}
+			publishedWebPort := fmt.Sprintf("%s:%s", publishedIp, binding.HostPort)
+			return publishedWebPort
+		}
+	}
+	return ""
+}
+
 func ipsFormat(networks map[string]api.ContainerNetwork) string {
 	var ips []string
 
@@ -112,9 +171,12 @@ func ipsFormat(networks map[string]api.ContainerNetwork) string {
 }
 
 func (cm *Docker) refresh(c *container.Container) {
-	insp := cm.inspect(c.Id)
+	insp, found, failed := cm.inspect(c.Id)
+	if failed {
+		return
+	}
 	// remove container if no longer exists
-	if insp == nil {
+	if !found {
 		cm.delByID(c.Id)
 		return
 	}
@@ -122,22 +184,37 @@ func (cm *Docker) refresh(c *container.Container) {
 	c.SetMeta("image", insp.Config.Image)
 	c.SetMeta("IPs", ipsFormat(insp.NetworkSettings.Networks))
 	c.SetMeta("ports", portsFormat(insp.NetworkSettings.Ports))
-	c.SetMeta("created", insp.Created.Format("Mon Jan 2 15:04:05 2006"))
-	c.SetMeta("health", insp.State.Health.Status)
-	for _, env := range insp.Config.Env {
-		c.SetMeta("[ENV-VAR]", env)
+	webPort := webPort(insp.NetworkSettings.Ports)
+	if webPort != "" {
+		c.SetMeta("Web Port", webPort)
 	}
+	c.SetMeta("created", insp.Created.Format("Mon Jan 02 15:04:05 2006"))
+	c.SetMeta("uptime", calcUptime(insp))
+	c.SetMeta("health", insp.State.Health.Status)
+	c.SetMeta("[ENV-VAR]", strings.Join(insp.Config.Env, ";"))
 	c.SetState(insp.State.Status)
 }
 
-func (cm *Docker) inspect(id string) *api.Container {
+func (cm *Docker) inspect(id string) (insp *api.Container, found bool, failed bool) {
 	c, err := cm.client.InspectContainer(id)
 	if err != nil {
-		if _, ok := err.(*api.NoSuchContainer); !ok {
-			log.Errorf("%s (%T)", err.Error(), err)
+		if _, notFound := err.(*api.NoSuchContainer); notFound {
+			return c, false, false
 		}
+		// other error e.g. connection failed
+		log.Errorf("%s (%T)", err.Error(), err)
+		return c, false, true
 	}
-	return c
+	return c, true, false
+}
+
+func calcUptime(insp *api.Container) string {
+	endTime := insp.State.FinishedAt
+	if endTime.IsZero() || insp.State.Running {
+		endTime = time.Now()
+	}
+	uptime := endTime.Sub(insp.State.StartedAt)
+	return durafmt.Parse(uptime).LimitFirstN(1).String()
 }
 
 // Mark all container IDs for refresh
@@ -169,6 +246,24 @@ func (cm *Docker) Loop() {
 	}
 }
 
+func (cm *Docker) LoopStatuses() {
+	for {
+		select {
+		case statusUpdate := <-cm.statuses:
+			c, _ := cm.Get(statusUpdate.Cid)
+			if c != nil {
+				if statusUpdate.Field == "health" {
+					c.SetMeta("health", statusUpdate.Status)
+				} else {
+					c.SetState(statusUpdate.Status)
+				}
+			}
+		case <-cm.closed:
+			return
+		}
+	}
+}
+
 // MustGet gets a single container, creating one anew if not existing
 func (cm *Docker) MustGet(id string) *container.Container {
 	c, ok := cm.Get(id)
@@ -218,5 +313,5 @@ func (cm *Docker) All() (containers container.Containers) {
 
 // use primary container name
 func shortName(name string) string {
-	return strings.Replace(name, "/", "", 1)
+	return strings.TrimPrefix(name, "/")
 }

connector/main.go

@@ -22,7 +22,7 @@ type Connector interface {
 	All() container.Containers
 	// Get returns a single container.Container by ID
 	Get(string) (*container.Container, bool)
-	// Wait waits for the underlying connection to be lost before returning
+	// Wait blocks until the underlying connection is lost
 	Wait() struct{}
 }
 

connector/manager/main.go

@@ -1,5 +1,9 @@
 package manager
 
+import "errors"
+
+var ActionNotImplErr = errors.New("action not implemented")
+
 type Manager interface {
 	Start() error
 	Stop() error

connector/manager/mock.go

@@ -7,29 +7,29 @@ func NewMock() *Mock {
 }
 
 func (m *Mock) Start() error {
-	return nil
+	return ActionNotImplErr
 }
 
 func (m *Mock) Stop() error {
-	return nil
+	return ActionNotImplErr
 }
 
 func (m *Mock) Remove() error {
-	return nil
+	return ActionNotImplErr
 }
 
 func (m *Mock) Pause() error {
-	return nil
+	return ActionNotImplErr
 }
 
 func (m *Mock) Unpause() error {
-	return nil
+	return ActionNotImplErr
 }
 
 func (m *Mock) Restart() error {
-	return nil
+	return ActionNotImplErr
 }
 
 func (m *Mock) Exec(cmd []string) error {
-	return nil
+	return ActionNotImplErr
 }

connector/manager/runc.go

@@ -7,29 +7,29 @@ func NewRunc() *Runc {
 }
 
 func (rc *Runc) Start() error {
-	return nil
+	return ActionNotImplErr
 }
 
 func (rc *Runc) Stop() error {
-	return nil
+	return ActionNotImplErr
 }
 
 func (rc *Runc) Remove() error {
-	return nil
+	return ActionNotImplErr
 }
 
 func (rc *Runc) Pause() error {
-	return nil
+	return ActionNotImplErr
 }
 
 func (rc *Runc) Unpause() error {
-	return nil
+	return ActionNotImplErr
 }
 
 func (rc *Runc) Restart() error {
-	return nil
+	return ActionNotImplErr
 }
 
 func (rc *Runc) Exec(cmd []string) error {
-	return nil
+	return ActionNotImplErr
 }

connector/mock.go

@@ -1,3 +1,4 @@
+//go:build !release
 // +build !release
 
 package connector
@@ -32,11 +33,11 @@ func (cs *Mock) Init() {
 	rand.Seed(int64(time.Now().Nanosecond()))
 
 	for i := 0; i < 4; i++ {
-		cs.makeContainer(3)
+		cs.makeContainer(3, true)
 	}
 
 	for i := 0; i < 16; i++ {
-		cs.makeContainer(1)
+		cs.makeContainer(1, false)
 	}
 
 }
@@ -50,12 +51,28 @@ func (cs *Mock) Wait() struct{} {
 	return <-ch
 }
 
-func (cs *Mock) makeContainer(aggression int64) {
+var healthStates = []string{"starting", "healthy", "unhealthy"}
+
+func (cs *Mock) makeContainer(aggression int64, health bool) {
 	collector := collector.NewMock(aggression)
 	manager := manager.NewMock()
 	c := container.New(makeID(), collector, manager)
 	c.SetMeta("name", makeName())
 	c.SetState(makeState())
+	if health {
+		var i int
+		c.SetMeta("health", healthStates[i])
+		go func() {
+			for {
+				i++
+				if i >= len(healthStates) {
+					i = 0
+				}
+				c.SetMeta("health", healthStates[i])
+				time.Sleep(12 * time.Second)
+			}
+		}()
+	}
 	cs.containers = append(cs.containers, c)
 }
 

connector/runc.go

@@ -1,9 +1,10 @@
+//go:build linux
 // +build linux
 
 package connector
 
 import (
-	"fmt"
+	"errors"
 	"io/ioutil"
 	"os"
 	"path/filepath"
@@ -14,7 +15,6 @@ import (
 	"github.com/bcicen/ctop/connector/manager"
 	"github.com/bcicen/ctop/container"
 	"github.com/opencontainers/runc/libcontainer"
-	"github.com/opencontainers/runc/libcontainer/cgroups/systemd"
 )
 
 func init() { enabled["runc"] = NewRunc }
@@ -65,7 +65,7 @@ func NewRunc() (Connector, error) {
 		return nil, err
 	}
 
-	factory, err := getFactory(opts)
+	factory, err := libcontainer.New(opts.root)
 	if err != nil {
 		return nil, err
 	}
@@ -104,7 +104,7 @@ func (cm *Runc) GetLibc(id string) libcontainer.Container {
 	libc, err := cm.factory.Load(id)
 	if err != nil {
 		// remove container if no longer exists
-		if lerr, ok := err.(libcontainer.Error); ok && lerr.Code() == libcontainer.ContainerNotExists {
+		if errors.Is(err, libcontainer.ErrNotExist) {
 			cm.delByID(id)
 		} else {
 			log.Warningf("failed to read container: %s\n", err)
@@ -169,7 +169,7 @@ func (cm *Runc) refreshAll() {
 	}
 
 	// queue all existing containers for refresh
-	for id, _ := range cm.containers {
+	for id := range cm.containers {
 		cm.needsRefresh <- id
 	}
 	log.Debugf("queued %d containers for refresh", len(cm.containers))
@@ -243,15 +243,3 @@ func (cm *Runc) All() (containers container.Containers) {
 	cm.lock.Unlock()
 	return containers
 }
-
-func getFactory(opts RuncOpts) (libcontainer.Factory, error) {
-	cgroupManager := libcontainer.Cgroupfs
-	if opts.systemdCgroups {
-		if systemd.UseSystemd() {
-			cgroupManager = libcontainer.SystemdCgroups
-		} else {
-			return nil, fmt.Errorf("systemd cgroup enabled, but systemd support for managing cgroups is not available")
-		}
-	}
-	return libcontainer.New(opts.root, cgroupManager)
-}

container/main.go

@@ -21,8 +21,8 @@ const (
 type Container struct {
 	models.Metrics
 	Id        string
-	Meta      map[string]string
-	Widgets   *compact.Compact
+	Meta      models.Meta
+	Widgets   *compact.CompactRow
 	Display   bool // display this container in compact view
 	updater   cwidgets.WidgetUpdater
 	collector collector.Collector
@@ -30,11 +30,15 @@ type Container struct {
 }
 
 func New(id string, collector collector.Collector, manager manager.Manager) *Container {
-	widgets := compact.NewCompact(id)
+	widgets := compact.NewCompactRow()
+	shortID := id
+	if len(shortID) > 12 {
+		shortID = shortID[0:12]
+	}
 	return &Container{
 		Metrics:   models.NewMetrics(),
 		Id:        id,
-		Meta:      make(map[string]string),
+		Meta:      models.NewMeta("id", shortID),
 		Widgets:   widgets,
 		updater:   widgets,
 		collector: collector,
@@ -42,23 +46,24 @@ func New(id string, collector collector.Collector, manager manager.Manager) *Con
 	}
 }
 
+func (c *Container) RecreateWidgets() {
+	c.SetUpdater(cwidgets.NullWidgetUpdater{})
+	c.Widgets = compact.NewCompactRow()
+	c.SetUpdater(c.Widgets)
+}
+
 func (c *Container) SetUpdater(u cwidgets.WidgetUpdater) {
 	c.updater = u
-	for k, v := range c.Meta {
-		c.updater.SetMeta(k, v)
-	}
+	c.updater.SetMeta(c.Meta)
 }
 
 func (c *Container) SetMeta(k, v string) {
 	c.Meta[k] = v
-	c.updater.SetMeta(k, v)
+	c.updater.SetMeta(c.Meta)
 }
 
 func (c *Container) GetMeta(k string) string {
-	if v, ok := c.Meta[k]; ok {
-		return v
-	}
-	return ""
+	return c.Meta.Get(k)
 }
 
 func (c *Container) SetState(s string) {

container/sort.go

@@ -79,6 +79,15 @@ var Sorters = map[string]sortMethod{
 		}
 		return stateMap[c1state] > stateMap[c2state]
 	},
+	"uptime": func(c1, c2 *Container) bool {
+		// Use secondary sort method if equal values
+		c1Uptime := c1.GetMeta("uptime")
+		c2Uptime := c2.GetMeta("uptime")
+		if c1Uptime == c2Uptime {
+			return nameSorter(c1, c2)
+		}
+		return c1Uptime > c2Uptime
+	},
 }
 
 func SortFields() (fields []string) {

cwidgets/compact/column.go

@@ -0,0 +1,55 @@
+package compact
+
+import (
+	"github.com/bcicen/ctop/config"
+	"github.com/bcicen/ctop/models"
+
+	ui "github.com/gizak/termui"
+)
+
+var (
+	allCols = map[string]NewCompactColFn{
+		"status":  NewStatus,
+		"name":    NewNameCol,
+		"id":      NewCIDCol,
+		"image":   NewImageCol,
+		"ports":   NewPortsCol,
+		"IPs":     NewIpsCol,
+		"created": NewCreatedCol,
+		"cpu":     NewCPUCol,
+		"cpus":    NewCpuScaledCol,
+		"mem":     NewMemCol,
+		"net":     NewNetCol,
+		"io":      NewIOCol,
+		"pids":    NewPIDCol,
+		"uptime":  NewUptimeCol,
+	}
+)
+
+type NewCompactColFn func() CompactCol
+
+func newRowWidgets() []CompactCol {
+	enabled := config.EnabledColumns()
+	cols := make([]CompactCol, len(enabled))
+
+	for n, name := range enabled {
+		wFn, ok := allCols[name]
+		if !ok {
+			panic("no such widget name: %s" + name)
+		}
+		cols[n] = wFn()
+	}
+
+	return cols
+}
+
+type CompactCol interface {
+	ui.GridBufferer
+	Reset()
+	Header() string  // header text to display for column
+	FixedWidth() int // fixed width size. if == 0, width is automatically calculated
+	Highlight()
+	UnHighlight()
+	SetMeta(models.Meta)
+	SetMetrics(models.Metrics)
+}

cwidgets/compact/gauge.go

@@ -1,21 +1,68 @@
 package compact
 
 import (
+	"fmt"
+
+	"github.com/bcicen/ctop/cwidgets"
+	"github.com/bcicen/ctop/models"
+
 	ui "github.com/gizak/termui"
 )
 
-type GaugeCol struct {
-	*ui.Gauge
+type CPUCol struct {
+	*GaugeCol
+	scaleCpu bool
 }
 
-func NewGaugeCol() *GaugeCol {
-	g := ui.NewGauge()
+func NewCPUCol() CompactCol {
+	return &CPUCol{NewGaugeCol("CPU"), false}
+}
+
+func NewCpuScaledCol() CompactCol {
+	return &CPUCol{NewGaugeCol("CPUS"), true}
+}
+
+func (w *CPUCol) SetMetrics(m models.Metrics) {
+	val := m.CPUUtil
+	w.BarColor = colorScale(val)
+	if !w.scaleCpu {
+		val = val * int(m.NCpus)
+	}
+	w.Label = fmt.Sprintf("%d%%", val)
+
+	if val > 100 {
+		val = 100
+	}
+	w.Percent = val
+}
+
+type MemCol struct {
+	*GaugeCol
+}
+
+func NewMemCol() CompactCol {
+	return &MemCol{NewGaugeCol("MEM")}
+}
+
+func (w *MemCol) SetMetrics(m models.Metrics) {
+	w.BarColor = ui.ThemeAttr("gauge.bar.bg")
+	w.Label = fmt.Sprintf("%s / %s", cwidgets.ByteFormat64Short(m.MemUsage), cwidgets.ByteFormat64Short(m.MemLimit))
+	w.Percent = m.MemPercent
+}
+
+type GaugeCol struct {
+	*ui.Gauge
+	header string
+	fWidth int
+}
+
+func NewGaugeCol(header string) *GaugeCol {
+	g := &GaugeCol{ui.NewGauge(), header, 0}
 	g.Height = 1
 	g.Border = false
-	g.Percent = 0
 	g.PaddingBottom = 0
-	g.Label = "-"
-	return &GaugeCol{g}
+	g.Reset()
+	return g
 }
 
 func (w *GaugeCol) Reset() {
@@ -23,22 +70,41 @@ func (w *GaugeCol) Reset() {
 	w.Percent = 0
 }
 
+func (w *GaugeCol) Buffer() ui.Buffer {
+	// if bar would not otherwise be visible, set a minimum
+	// percentage value and low-contrast color for structure
+	if w.Percent < 5 {
+		w.Percent = 5
+		w.BarColor = ui.ColorBlack
+	}
+
+	return w.Gauge.Buffer()
+}
+
+// GaugeCol implements CompactCol
+func (w *GaugeCol) SetMeta(models.Meta)       {}
+func (w *GaugeCol) SetMetrics(models.Metrics) {}
+func (w *GaugeCol) Header() string            { return w.header }
+func (w *GaugeCol) FixedWidth() int           { return w.fWidth }
+
+// GaugeCol implements CompactCol
 func (w *GaugeCol) Highlight() {
 	w.Bg = ui.ThemeAttr("par.text.fg")
 	w.PercentColor = ui.ThemeAttr("par.text.hi")
 }
 
+// GaugeCol implements CompactCol
 func (w *GaugeCol) UnHighlight() {
 	w.Bg = ui.ThemeAttr("par.text.bg")
 	w.PercentColor = ui.ThemeAttr("par.text.bg")
 }
 
 func colorScale(n int) ui.Attribute {
-	if n > 70 {
-		return ui.ThemeAttr("status.danger")
+	if n <= 70 {
+		return ui.ThemeAttr("status.ok")
 	}
-	if n > 30 {
+	if n <= 90 {
 		return ui.ThemeAttr("status.warn")
 	}
-	return ui.ThemeAttr("status.ok")
+	return ui.ThemeAttr("status.danger")
 }

cwidgets/compact/grid.go

@@ -4,11 +4,11 @@ import (
 	ui "github.com/gizak/termui"
 )
 
-var header *CompactHeader
-
 type CompactGrid struct {
 	ui.GridBufferer
-	Rows   []ui.GridBufferer
+	header *CompactHeader
+	cols   []CompactCol // reference columns
+	Rows   []RowBufferer
 	X, Y   int
 	Width  int
 	Height int
@@ -16,8 +16,9 @@ type CompactGrid struct {
 }
 
 func NewCompactGrid() *CompactGrid {
-	header = NewCompactHeader() // init column header
-	return &CompactGrid{}
+	cg := &CompactGrid{header: NewCompactHeader()}
+	cg.rebuildHeader()
+	return cg
 }
 
 func (cg *CompactGrid) Align() {
@@ -28,22 +29,51 @@ func (cg *CompactGrid) Align() {
 	}
 
 	// update row ypos, width recursively
+	colWidths := cg.calcWidths()
 	for _, r := range cg.pageRows() {
 		r.SetY(y)
 		y += r.GetHeight()
-		r.SetWidth(cg.Width)
+		r.SetWidths(cg.Width, colWidths)
 	}
 }
 
-func (cg *CompactGrid) Clear()         { cg.Rows = []ui.GridBufferer{} }
-func (cg *CompactGrid) GetHeight() int { return len(cg.Rows) + header.Height }
+func (cg *CompactGrid) Clear() {
+	cg.Rows = []RowBufferer{}
+	cg.rebuildHeader()
+}
+
+func (cg *CompactGrid) GetHeight() int { return len(cg.Rows) + cg.header.Height }
 func (cg *CompactGrid) SetX(x int)     { cg.X = x }
 func (cg *CompactGrid) SetY(y int)     { cg.Y = y }
 func (cg *CompactGrid) SetWidth(w int) { cg.Width = w }
-func (cg *CompactGrid) MaxRows() int   { return ui.TermHeight() - header.Height - cg.Y }
+func (cg *CompactGrid) MaxRows() int   { return ui.TermHeight() - cg.header.Height - cg.Y }
 
-func (cg *CompactGrid) pageRows() (rows []ui.GridBufferer) {
-	rows = append(rows, header)
+// calculate and return per-column width
+func (cg *CompactGrid) calcWidths() []int {
+	var autoCols int
+	width := cg.Width
+	colWidths := make([]int, len(cg.cols))
+
+	for n, w := range cg.cols {
+		colWidths[n] = w.FixedWidth()
+		width -= w.FixedWidth()
+		if w.FixedWidth() == 0 {
+			autoCols++
+		}
+	}
+
+	spacing := colSpacing * len(cg.cols)
+	autoWidth := (width - spacing) / autoCols
+	for n, val := range colWidths {
+		if val == 0 {
+			colWidths[n] = autoWidth
+		}
+	}
+	return colWidths
+}
+
+func (cg *CompactGrid) pageRows() (rows []RowBufferer) {
+	rows = append(rows, cg.header)
 	rows = append(rows, cg.Rows[cg.Offset:]...)
 	return rows
 }
@@ -56,6 +86,14 @@ func (cg *CompactGrid) Buffer() ui.Buffer {
 	return buf
 }
 
-func (cg *CompactGrid) AddRows(rows ...ui.GridBufferer) {
+func (cg *CompactGrid) AddRows(rows ...RowBufferer) {
 	cg.Rows = append(cg.Rows, rows...)
 }
+
+func (cg *CompactGrid) rebuildHeader() {
+	cg.cols = newRowWidgets()
+	cg.header.clearFieldPars()
+	for _, col := range cg.cols {
+		cg.header.addFieldPar(col.Header())
+	}
+}

cwidgets/compact/header.go

@@ -8,63 +8,59 @@ type CompactHeader struct {
 	X, Y   int
 	Width  int
 	Height int
+	cols   []CompactCol
+	widths []int
 	pars   []*ui.Par
 }
 
 func NewCompactHeader() *CompactHeader {
-	fields := []string{"", "NAME", "CID", "CPU", "MEM", "NET RX/TX", "IO R/W", "PIDS"}
-	ch := &CompactHeader{}
-	ch.Height = 2
-	for _, f := range fields {
-		ch.addFieldPar(f)
+	return &CompactHeader{
+		X:      rowPadding,
+		Height: 2,
 	}
-	return ch
 }
 
-func (ch *CompactHeader) GetHeight() int {
-	return ch.Height
+func (row *CompactHeader) GetHeight() int {
+	return row.Height
 }
 
-func (ch *CompactHeader) SetWidth(w int) {
-	x := ch.X
-	autoWidth := calcWidth(w)
-	for n, col := range ch.pars {
-		// set column to static width
-		if colWidths[n] != 0 {
-			col.SetX(x)
-			col.SetWidth(colWidths[n])
-			x += colWidths[n]
-			continue
-		}
-		col.SetX(x)
-		col.SetWidth(autoWidth)
-		x += autoWidth + colSpacing
+func (row *CompactHeader) SetWidths(totalWidth int, widths []int) {
+	x := row.X
+
+	for n, w := range row.pars {
+		w.SetX(x)
+		w.SetWidth(widths[n])
+		x += widths[n] + colSpacing
 	}
-	ch.Width = w
+	row.Width = totalWidth
 }
 
-func (ch *CompactHeader) SetX(x int) {
-	ch.X = x
+func (row *CompactHeader) SetX(x int) {
+	row.X = x
 }
 
-func (ch *CompactHeader) SetY(y int) {
-	for _, p := range ch.pars {
+func (row *CompactHeader) SetY(y int) {
+	for _, p := range row.pars {
 		p.SetY(y)
 	}
-	ch.Y = y
+	row.Y = y
 }
 
-func (ch *CompactHeader) Buffer() ui.Buffer {
+func (row *CompactHeader) Buffer() ui.Buffer {
 	buf := ui.NewBuffer()
-	for _, p := range ch.pars {
+	for _, p := range row.pars {
 		buf.Merge(p.Buffer())
 	}
 	return buf
 }
 
-func (ch *CompactHeader) addFieldPar(s string) {
-	p := ui.NewPar(s)
-	p.Height = ch.Height
-	p.Border = false
-	ch.pars = append(ch.pars, p)
+func (row *CompactHeader) clearFieldPars() {
+	row.pars = []*ui.Par{}
+}
+
+func (row *CompactHeader) addFieldPar(s string) {
+	p := ui.NewPar(s)
+	p.Height = row.Height
+	p.Border = false
+	row.pars = append(row.pars, p)
 }

cwidgets/compact/main.go

@@ -1,195 +0,0 @@
-package compact
-
-import (
-	"github.com/bcicen/ctop/config"
-	"github.com/bcicen/ctop/logging"
-	"github.com/bcicen/ctop/models"
-	ui "github.com/gizak/termui"
-)
-
-var log = logging.Init()
-
-type Compact struct {
-	Status *Status
-	Name   *TextCol
-	Cid    *TextCol
-	Cpu    *GaugeCol
-	Mem    *GaugeCol
-	Net    *TextCol
-	IO     *TextCol
-	Pids   *TextCol
-	Bg     *RowBg
-	X, Y   int
-	Width  int
-	Height int
-}
-
-func NewCompact(id string) *Compact {
-	// truncate container id
-	if len(id) > 12 {
-		id = id[:12]
-	}
-	row := &Compact{
-		Status: NewStatus(),
-		Name:   NewTextCol("-"),
-		Cid:    NewTextCol(id),
-		Cpu:    NewGaugeCol(),
-		Mem:    NewGaugeCol(),
-		Net:    NewTextCol("-"),
-		IO:     NewTextCol("-"),
-		Pids:   NewTextCol("-"),
-		Bg:     NewRowBg(),
-		X:      1,
-		Height: 1,
-	}
-	return row
-}
-
-//func (row *Compact) ToggleExpand() {
-//if row.Height == 1 {
-//row.Height = 4
-//} else {
-//row.Height = 1
-//}
-//}
-
-func (row *Compact) SetMeta(k, v string) {
-	switch k {
-	case "name":
-		row.Name.Set(v)
-	case "state":
-		row.Status.Set(v)
-	case "health":
-		row.Status.SetHealth(v)
-	}
-}
-
-func (row *Compact) SetMetrics(m models.Metrics) {
-	row.SetCPU(m.CPUUtil)
-	row.SetNet(m.NetRx, m.NetTx)
-	row.SetMem(m.MemUsage, m.MemLimit, m.MemPercent)
-	row.SetIO(m.IOBytesRead, m.IOBytesWrite)
-	row.SetPids(m.Pids)
-}
-
-// Set gauges, counters to default unread values
-func (row *Compact) Reset() {
-	row.Cpu.Reset()
-	row.Mem.Reset()
-	row.Net.Reset()
-	row.IO.Reset()
-	row.Pids.Reset()
-}
-
-func (row *Compact) GetHeight() int {
-	return row.Height
-}
-
-func (row *Compact) SetX(x int) {
-	row.X = x
-}
-
-func (row *Compact) SetY(y int) {
-	if y == row.Y {
-		return
-	}
-
-	row.Bg.Y = y
-	for _, col := range row.all() {
-		col.SetY(y)
-	}
-	row.Y = y
-}
-
-func (row *Compact) SetWidth(width int) {
-	if width == row.Width {
-		return
-	}
-	x := row.X
-
-	row.Bg.SetX(x + colWidths[0] + 1)
-	row.Bg.SetWidth(width)
-
-	autoWidth := calcWidth(width)
-	for n, col := range row.all() {
-		if colWidths[n] != 0 {
-			col.SetX(x)
-			col.SetWidth(colWidths[n])
-			x += colWidths[n]
-			continue
-		}
-		col.SetX(x)
-		col.SetWidth(autoWidth)
-		x += autoWidth + colSpacing
-	}
-	row.Width = width
-}
-
-func (row *Compact) Buffer() ui.Buffer {
-	buf := ui.NewBuffer()
-
-	buf.Merge(row.Bg.Buffer())
-	buf.Merge(row.Status.Buffer())
-	buf.Merge(row.Name.Buffer())
-	buf.Merge(row.Cid.Buffer())
-	buf.Merge(row.Cpu.Buffer())
-	buf.Merge(row.Mem.Buffer())
-	buf.Merge(row.Net.Buffer())
-	buf.Merge(row.IO.Buffer())
-	buf.Merge(row.Pids.Buffer())
-	return buf
-}
-
-func (row *Compact) all() []ui.GridBufferer {
-	return []ui.GridBufferer{
-		row.Status,
-		row.Name,
-		row.Cid,
-		row.Cpu,
-		row.Mem,
-		row.Net,
-		row.IO,
-		row.Pids,
-	}
-}
-
-func (row *Compact) Highlight() {
-	row.Name.Highlight()
-	if config.GetSwitchVal("fullRowCursor") {
-		row.Bg.Highlight()
-		row.Cid.Highlight()
-		row.Cpu.Highlight()
-		row.Mem.Highlight()
-		row.Net.Highlight()
-		row.IO.Highlight()
-		row.Pids.Highlight()
-	}
-}
-
-func (row *Compact) UnHighlight() {
-	row.Name.UnHighlight()
-	if config.GetSwitchVal("fullRowCursor") {
-		row.Bg.UnHighlight()
-		row.Cid.UnHighlight()
-		row.Cpu.UnHighlight()
-		row.Mem.UnHighlight()
-		row.Net.UnHighlight()
-		row.IO.UnHighlight()
-		row.Pids.UnHighlight()
-	}
-}
-
-type RowBg struct {
-	*ui.Par
-}
-
-func NewRowBg() *RowBg {
-	bg := ui.NewPar("")
-	bg.Height = 1
-	bg.Border = false
-	bg.Bg = ui.ThemeAttr("par.text.bg")
-	return &RowBg{bg}
-}
-
-func (w *RowBg) Highlight()   { w.Bg = ui.ThemeAttr("par.text.fg") }
-func (w *RowBg) UnHighlight() { w.Bg = ui.ThemeAttr("par.text.bg") }

cwidgets/compact/row.go

@@ -0,0 +1,129 @@
+package compact
+
+import (
+	"github.com/bcicen/ctop/config"
+	"github.com/bcicen/ctop/logging"
+	"github.com/bcicen/ctop/models"
+
+	ui "github.com/gizak/termui"
+)
+
+const rowPadding = 1
+
+var log = logging.Init()
+
+type RowBufferer interface {
+	SetY(int)
+	SetWidths(int, []int)
+	GetHeight() int
+	Buffer() ui.Buffer
+}
+
+type CompactRow struct {
+	Bg     *RowBg
+	Cols   []CompactCol
+	X, Y   int
+	Height int
+	widths []int // column widths
+}
+
+func NewCompactRow() *CompactRow {
+	row := &CompactRow{
+		Bg:     NewRowBg(),
+		Cols:   newRowWidgets(),
+		X:      rowPadding,
+		Height: 1,
+	}
+
+	return row
+}
+
+func (row *CompactRow) SetMeta(m models.Meta) {
+	for _, w := range row.Cols {
+		w.SetMeta(m)
+	}
+}
+
+func (row *CompactRow) SetMetrics(m models.Metrics) {
+	for _, w := range row.Cols {
+		w.SetMetrics(m)
+	}
+}
+
+// Set gauges, counters, etc. to default unread values
+func (row *CompactRow) Reset() {
+	for _, w := range row.Cols {
+		w.Reset()
+	}
+}
+
+func (row *CompactRow) GetHeight() int { return row.Height }
+
+//func (row *CompactRow) SetX(x int)     { row.X = x }
+
+func (row *CompactRow) SetY(y int) {
+	if y == row.Y {
+		return
+	}
+
+	row.Bg.Y = y
+	for _, w := range row.Cols {
+		w.SetY(y)
+	}
+	row.Y = y
+}
+
+func (row *CompactRow) SetWidths(totalWidth int, widths []int) {
+	x := row.X
+
+	row.Bg.SetX(x)
+	row.Bg.SetWidth(totalWidth)
+
+	for n, w := range row.Cols {
+		w.SetX(x)
+		w.SetWidth(widths[n])
+		x += widths[n] + colSpacing
+	}
+}
+
+func (row *CompactRow) Buffer() ui.Buffer {
+	buf := ui.NewBuffer()
+	buf.Merge(row.Bg.Buffer())
+	for _, w := range row.Cols {
+		buf.Merge(w.Buffer())
+	}
+	return buf
+}
+
+func (row *CompactRow) Highlight() {
+	row.Cols[1].Highlight()
+	if config.GetSwitchVal("fullRowCursor") {
+		for _, w := range row.Cols {
+			w.Highlight()
+		}
+	}
+}
+
+func (row *CompactRow) UnHighlight() {
+	row.Cols[1].UnHighlight()
+	if config.GetSwitchVal("fullRowCursor") {
+		for _, w := range row.Cols {
+			w.UnHighlight()
+		}
+	}
+}
+
+type RowBg struct {
+	*ui.Par
+}
+
+func NewRowBg() *RowBg {
+	bg := ui.NewPar("")
+	bg.Height = 1
+	bg.Border = false
+	bg.Bg = ui.ThemeAttr("par.text.bg")
+	return &RowBg{bg}
+}
+
+func (w *RowBg) Highlight()   { w.Bg = ui.ThemeAttr("par.text.fg") }
+func (w *RowBg) UnHighlight() { w.Bg = ui.ThemeAttr("par.text.bg") }

cwidgets/compact/setters.go

@@ -1,48 +0,0 @@
-package compact
-
-import (
-	"fmt"
-	"strconv"
-
-	"github.com/bcicen/ctop/cwidgets"
-	ui "github.com/gizak/termui"
-)
-
-func (row *Compact) SetNet(rx int64, tx int64) {
-	label := fmt.Sprintf("%s / %s", cwidgets.ByteFormat(rx), cwidgets.ByteFormat(tx))
-	row.Net.Set(label)
-}
-
-func (row *Compact) SetIO(read int64, write int64) {
-	label := fmt.Sprintf("%s / %s", cwidgets.ByteFormat(read), cwidgets.ByteFormat(write))
-	row.IO.Set(label)
-}
-
-func (row *Compact) SetPids(val int) {
-	label := strconv.Itoa(val)
-	row.Pids.Set(label)
-}
-
-func (row *Compact) SetCPU(val int) {
-	row.Cpu.BarColor = colorScale(val)
-	row.Cpu.Label = fmt.Sprintf("%s%%", strconv.Itoa(val))
-	if val < 5 {
-		val = 5
-		row.Cpu.BarColor = ui.ThemeAttr("gauge.bar.bg")
-	}
-	if val > 100 {
-		val = 100
-	}
-	row.Cpu.Percent = val
-}
-
-func (row *Compact) SetMem(val int64, limit int64, percent int) {
-	row.Mem.Label = fmt.Sprintf("%s / %s", cwidgets.ByteFormat(val), cwidgets.ByteFormat(limit))
-	if percent < 5 {
-		percent = 5
-		row.Mem.BarColor = ui.ColorBlack
-	} else {
-		row.Mem.BarColor = ui.ThemeAttr("gauge.bar.bg")
-	}
-	row.Mem.Percent = percent
-}

cwidgets/compact/status.go

@@ -1,13 +1,9 @@
 package compact
 
 import (
-	ui "github.com/gizak/termui"
-)
+	"github.com/bcicen/ctop/models"
 
-const (
-	mark       = "◉"
-	healthMark = "✚"
-	vBar       = string('\u25AE') + string('\u25AE')
+	ui "github.com/gizak/termui"
 )
 
 // Status indicator
@@ -17,64 +13,81 @@ type Status struct {
 	health []ui.Cell
 }
 
-func NewStatus() *Status {
+func NewStatus() CompactCol {
 	s := &Status{
 		Block:  ui.NewBlock(),
+		status: []ui.Cell{{Ch: ' '}},
 		health: []ui.Cell{{Ch: ' '}},
 	}
 	s.Height = 1
 	s.Border = false
-	s.Set("")
 	return s
 }
 
 func (s *Status) Buffer() ui.Buffer {
 	buf := s.Block.Buffer()
-	x := 0
-	for _, c := range s.health {
-		buf.Set(s.InnerX()+x, s.InnerY(), c)
-		x += c.Width()
-	}
-	x += 1
-	for _, c := range s.status {
-		buf.Set(s.InnerX()+x, s.InnerY(), c)
-		x += c.Width()
-	}
+	buf.Set(s.InnerX(), s.InnerY(), s.health[0])
+	buf.Set(s.InnerX()+2, s.InnerY(), s.status[0])
 	return buf
 }
 
-func (s *Status) Set(val string) {
-	// defaults
-	text := mark
-	color := ui.ColorDefault
-
-	switch val {
-	case "running":
-		color = ui.ThemeAttr("status.ok")
-	case "exited":
-		color = ui.ThemeAttr("status.danger")
-	case "paused":
-		text = vBar
-	}
-
-	s.status = ui.TextCells(text, color, ui.ColorDefault)
+func (s *Status) SetMeta(m models.Meta) {
+	s.setState(m.Get("state"))
+	s.setHealth(m.Get("health"))
 }
 
-func (s *Status) SetHealth(val string) {
-	if val == "" {
-		return
-	}
+// Status implements CompactCol
+func (s *Status) Reset()                    {}
+func (s *Status) SetMetrics(models.Metrics) {}
+func (s *Status) Highlight()                {}
+func (s *Status) UnHighlight()              {}
+func (s *Status) Header() string            { return "" }
+func (s *Status) FixedWidth() int           { return 3 }
 
+func (s *Status) setState(val string) {
 	color := ui.ColorDefault
-	mark := healthMark
+	var mark string
 
 	switch val {
+	case "":
+		return
+	case "created":
+		mark = "◉"
+	case "running":
+		mark = "▶"
+		color = ui.ThemeAttr("status.ok")
+	case "exited":
+		mark = "⏹"
+		color = ui.ThemeAttr("status.danger")
+	case "paused":
+		mark = "⏸"
+	default:
+		mark = " "
+		log.Warningf("unknown status string: \"%v\"", val)
+	}
+
+	s.status = ui.TextCells(mark, color, ui.ColorDefault)
+}
+
+func (s *Status) setHealth(val string) {
+	color := ui.ColorDefault
+	var mark string
+
+	switch val {
+	case "":
+		return
 	case "healthy":
+		mark = "☼"
 		color = ui.ThemeAttr("status.ok")
 	case "unhealthy":
+		mark = "⚠"
 		color = ui.ThemeAttr("status.danger")
 	case "starting":
+		mark = "◌"
 		color = ui.ThemeAttr("status.warn")
+	default:
+		mark = " "
+		log.Warningf("unknown health state string: \"%v\"", val)
 	}
 
 	s.health = ui.TextCells(mark, color, ui.ColorDefault)

cwidgets/compact/text.go

@@ -1,19 +1,123 @@
 package compact
 
 import (
+	"fmt"
+
+	"github.com/bcicen/ctop/cwidgets"
+	"github.com/bcicen/ctop/models"
+
 	ui "github.com/gizak/termui"
 )
 
-type TextCol struct {
-	*ui.Par
+// Column that shows container's meta property i.e. name, id, image tc.
+type MetaCol struct {
+	*TextCol
+	metaName string
 }
 
-func NewTextCol(s string) *TextCol {
-	p := ui.NewPar(s)
+func (w *MetaCol) SetMeta(m models.Meta) {
+	w.setText(m.Get(w.metaName))
+}
+
+func NewNameCol() CompactCol {
+	c := &MetaCol{NewTextCol("NAME"), "name"}
+	c.fWidth = 30
+	return c
+}
+
+func NewCIDCol() CompactCol {
+	c := &MetaCol{NewTextCol("CID"), "id"}
+	c.fWidth = 12
+	return c
+}
+
+func NewImageCol() CompactCol {
+	return &MetaCol{NewTextCol("IMAGE"), "image"}
+}
+
+func NewPortsCol() CompactCol {
+	return &MetaCol{NewTextCol("PORTS"), "ports"}
+}
+
+func NewIpsCol() CompactCol {
+	return &MetaCol{NewTextCol("IPs"), "IPs"}
+}
+
+func NewCreatedCol() CompactCol {
+	c := &MetaCol{NewTextCol("CREATED"), "created"}
+	c.fWidth = 19 // Year will be stripped e.g. "Thu Nov 26 07:44:03" without 2020 at end
+	return c
+}
+
+type NetCol struct {
+	*TextCol
+}
+
+func NewNetCol() CompactCol {
+	return &NetCol{NewTextCol("NET RX/TX")}
+}
+
+func (w *NetCol) SetMetrics(m models.Metrics) {
+	label := fmt.Sprintf("%s / %s", cwidgets.ByteFormat64Short(m.NetRx), cwidgets.ByteFormat64Short(m.NetTx))
+	w.setText(label)
+}
+
+type IOCol struct {
+	*TextCol
+}
+
+func NewIOCol() CompactCol {
+	return &IOCol{NewTextCol("IO R/W")}
+}
+
+func (w *IOCol) SetMetrics(m models.Metrics) {
+	label := fmt.Sprintf("%s / %s", cwidgets.ByteFormat64Short(m.IOBytesRead), cwidgets.ByteFormat64Short(m.IOBytesWrite))
+	w.setText(label)
+}
+
+type PIDCol struct {
+	*TextCol
+}
+
+func NewPIDCol() CompactCol {
+	w := &PIDCol{NewTextCol("PIDS")}
+	w.fWidth = 4
+	return w
+}
+
+func (w *PIDCol) SetMetrics(m models.Metrics) {
+	w.setText(fmt.Sprintf("%d", m.Pids))
+}
+
+type UptimeCol struct {
+	*TextCol
+}
+
+func NewUptimeCol() CompactCol {
+	return &UptimeCol{NewTextCol("UPTIME")}
+}
+
+func (w *UptimeCol) SetMeta(m models.Meta) {
+	w.Text = m.Get("uptime")
+}
+
+type TextCol struct {
+	*ui.Par
+	header string
+	fWidth int
+}
+
+func NewTextCol(header string) *TextCol {
+	p := ui.NewPar("-")
 	p.Border = false
 	p.Height = 1
 	p.Width = 20
-	return &TextCol{p}
+
+	return &TextCol{
+		Par:    p,
+		header: header,
+		fWidth: 0,
+	}
 }
 
 func (w *TextCol) Highlight() {
@@ -28,10 +132,16 @@ func (w *TextCol) UnHighlight() {
 	w.TextBgColor = ui.ThemeAttr("par.text.bg")
 }
 
-func (w *TextCol) Reset() {
-	w.Text = "-"
-}
+// TextCol implements CompactCol
+func (w *TextCol) Reset()                    { w.setText("-") }
+func (w *TextCol) SetMeta(models.Meta)       {}
+func (w *TextCol) SetMetrics(models.Metrics) {}
+func (w *TextCol) Header() string            { return w.header }
+func (w *TextCol) FixedWidth() int           { return w.fWidth }
 
-func (w *TextCol) Set(s string) {
+func (w *TextCol) setText(s string) {
+	if w.fWidth > 0 && len(s) > w.fWidth {
+		s = s[0:w.fWidth]
+	}
 	w.Text = s
 }

cwidgets/compact/util.go

@@ -10,31 +10,6 @@ import (
 
 const colSpacing = 1
 
-// per-column width. 0 == auto width
-var colWidths = []int{
-	5, // status
-	0, // name
-	0, // cid
-	0, // cpu
-	0, // memory
-	0, // net
-	0, // io
-	4, // pids
-}
-
-// Calculate per-column width, given total width
-func calcWidth(width int) int {
-	spacing := colSpacing * len(colWidths)
-	var staticCols int
-	for _, w := range colWidths {
-		width -= w
-		if w == 0 {
-			staticCols++
-		}
-	}
-	return (width - spacing) / staticCols
-}
-
 func centerParText(p *ui.Par) {
 	var text string
 	var padding string

cwidgets/main.go

@@ -8,6 +8,14 @@ import (
 var log = logging.Init()
 
 type WidgetUpdater interface {
-	SetMeta(string, string)
+	SetMeta(models.Meta)
 	SetMetrics(models.Metrics)
 }
+
+type NullWidgetUpdater struct{}
+
+// NullWidgetUpdater implements WidgetUpdater
+func (wu NullWidgetUpdater) SetMeta(models.Meta) {}
+
+// NullWidgetUpdater implements WidgetUpdater
+func (wu NullWidgetUpdater) SetMetrics(models.Metrics) {}

cwidgets/single/cpu.go

@@ -20,10 +20,10 @@ func NewCpu() *Cpu {
 
 	// hack to force the default minY scale to 0
 	tmpData := []float64{20}
-	cpu.Data = tmpData
+	cpu.Data["CPU"] = tmpData
 	_ = cpu.Buffer()
 
-	cpu.Data = cpu.hist.Data
+	cpu.Data["CPU"] = cpu.hist.Data
 	return cpu
 }
 

cwidgets/single/env.go

@@ -1,8 +1,10 @@
 package single
 
 import (
-	ui "github.com/gizak/termui"
 	"regexp"
+	"strings"
+
+	ui "github.com/gizak/termui"
 )
 
 var envPattern = regexp.MustCompile(`(?P<KEY>[^=]+)=(?P<VALUJE>.*)`)
@@ -23,14 +25,18 @@ func NewEnv() *Env {
 	return i
 }
 
-func (w *Env) Set(k, v string) {
-	match := envPattern.FindStringSubmatch(v)
-	key := match[1]
-	value := match[2]
-	w.data[key] = value
-
+func (w *Env) Set(allEnvs string) {
+	envs := strings.Split(allEnvs, ";")
 	w.Rows = [][]string{}
-	w.Rows = append(w.Rows, mkInfoRows(key, value)...)
+	for _, env := range envs {
+		match := envPattern.FindStringSubmatch(env)
+		if len(match) == 3 {
+			key := match[1]
+			value := match[2]
+			w.data[key] = value
+			w.Rows = append(w.Rows, mkInfoRows(key, value)...)
+		}
+	}
 
 	w.Height = len(w.Rows) + 2
 }

cwidgets/single/info.go

@@ -6,21 +6,20 @@ import (
 	ui "github.com/gizak/termui"
 )
 
-var displayInfo = []string{"id", "name", "image", "ports", "IPs", "state", "created", "health"}
+var displayInfo = []string{"id", "name", "image", "ports", "IPs", "state", "created", "uptime", "health"}
 
 type Info struct {
 	*ui.Table
 	data map[string]string
 }
 
-func NewInfo(id string) *Info {
+func NewInfo() *Info {
 	p := ui.NewTable()
 	p.Height = 4
 	p.Width = colWidth[0]
 	p.FgColor = ui.ThemeAttr("par.text.fg")
 	p.Separator = false
 	i := &Info{p, make(map[string]string)}
-	i.Set("id", id)
 	return i
 }
 

cwidgets/single/io.go

@@ -42,10 +42,10 @@ func (w *IO) Update(read int64, write int64) {
 	var rate string
 
 	w.readHist.Append(int(read))
-	rate = strings.ToLower(cwidgets.ByteFormatInt(w.readHist.Val))
+	rate = strings.ToLower(cwidgets.ByteFormatShort(w.readHist.Val))
 	w.Lines[0].Title = fmt.Sprintf("read [%s/s]", rate)
 
 	w.writeHist.Append(int(write))
-	rate = strings.ToLower(cwidgets.ByteFormatInt(w.writeHist.Val))
+	rate = strings.ToLower(cwidgets.ByteFormatShort(w.writeHist.Val))
 	w.Lines[1].Title = fmt.Sprintf("write [%s/s]", rate)
 }

cwidgets/single/main.go

@@ -23,12 +23,9 @@ type Single struct {
 	Width int
 }
 
-func NewSingle(id string) *Single {
-	if len(id) > 12 {
-		id = id[:12]
-	}
+func NewSingle() *Single {
 	return &Single{
-		Info:  NewInfo(id),
+		Info:  NewInfo(),
 		Net:   NewNet(),
 		Cpu:   NewCpu(),
 		Mem:   NewMem(),
@@ -55,11 +52,13 @@ func (e *Single) Down() {
 }
 
 func (e *Single) SetWidth(w int) { e.Width = w }
-func (e *Single) SetMeta(k, v string) {
-	if k == "[ENV-VAR]" {
-		e.Env.Set(k, v)
-	} else {
-		e.Info.Set(k, v)
+func (e *Single) SetMeta(m models.Meta) {
+	for k, v := range m {
+		if k == "[ENV-VAR]" {
+			e.Env.Set(v)
+		} else {
+			e.Info.Set(k, v)
+		}
 	}
 }
 

cwidgets/single/mem.go

@@ -70,7 +70,7 @@ func newMemChart() *ui.MBarChart {
 	mbar.BarColor[1] = ui.ColorBlack
 	mbar.NumColor[1] = ui.ColorBlack
 
-	mbar.NumFmt = cwidgets.ByteFormatInt
+	mbar.NumFmt = cwidgets.ByteFormatShort
 	//mbar.ShowScale = true
 	return mbar
 }
@@ -78,6 +78,6 @@ func newMemChart() *ui.MBarChart {
 func (w *Mem) Update(val int, limit int) {
 	w.valHist.Append(val)
 	w.limitHist.Append(limit - val)
-	w.InnerLabel.Text = fmt.Sprintf("%v / %v", cwidgets.ByteFormatInt(val), cwidgets.ByteFormatInt(limit))
+	w.InnerLabel.Text = fmt.Sprintf("%v / %v", cwidgets.ByteFormatShort(val), cwidgets.ByteFormatShort(limit))
 	//w.Data[0] = w.hist.data
 }

cwidgets/single/net.go

@@ -42,10 +42,10 @@ func (w *Net) Update(rx int64, tx int64) {
 	var rate string
 
 	w.rxHist.Append(int(rx))
-	rate = strings.ToLower(cwidgets.ByteFormatInt(w.rxHist.Val))
+	rate = strings.ToLower(cwidgets.ByteFormat(w.rxHist.Val))
 	w.Lines[0].Title = fmt.Sprintf("RX [%s/s]", rate)
 
 	w.txHist.Append(int(tx))
-	rate = strings.ToLower(cwidgets.ByteFormatInt(w.txHist.Val))
+	rate = strings.ToLower(cwidgets.ByteFormat(w.txHist.Val))
 	w.Lines[1].Title = fmt.Sprintf("TX [%s/s]", rate)
 }

cwidgets/util.go

@@ -1,53 +1,74 @@
 package cwidgets
 
 import (
-	"fmt"
 	"strconv"
 )
 
 const (
-	kb = 1024
-	mb = kb * 1024
-	gb = mb * 1024
-	tb = gb * 1024
+	// byte ratio constants
+	_           = iota
+	kib float64 = 1 << (10 * iota)
+	mib
+	gib
+	tib
+	pib
 )
 
-// convenience method
-func ByteFormatInt(n int) string {
-	return ByteFormat(int64(n))
+var (
+	units = []float64{
+		1,
+		kib,
+		mib,
+		gib,
+		tib,
+		pib,
+	}
+
+	// short, full unit labels
+	labels = [][2]string{
+		[2]string{"B", "B"},
+		[2]string{"K", "KiB"},
+		[2]string{"M", "MiB"},
+		[2]string{"G", "GiB"},
+		[2]string{"T", "TiB"},
+		[2]string{"P", "PiB"},
+	}
+)
+
+// convenience methods
+func ByteFormat(n int) string          { return byteFormat(float64(n), false) }
+func ByteFormatShort(n int) string     { return byteFormat(float64(n), true) }
+func ByteFormat64(n int64) string      { return byteFormat(float64(n), false) }
+func ByteFormat64Short(n int64) string { return byteFormat(float64(n), true) }
+
+func byteFormat(n float64, short bool) string {
+	i := len(units) - 1
+
+	for i > 0 {
+		if n >= units[i] {
+			n /= units[i]
+			break
+		}
+		i--
+	}
+
+	if short {
+		return unpadFloat(n, 0) + labels[i][0]
+	}
+	return unpadFloat(n, 2) + labels[i][1]
 }
 
-func ByteFormat(n int64) string {
-	if n < kb {
-		return fmt.Sprintf("%sB", strconv.FormatInt(n, 10))
-	}
-	if n < mb {
-		n = n / kb
-		return fmt.Sprintf("%sK", strconv.FormatInt(n, 10))
-	}
-	if n < gb {
-		n = n / mb
-		return fmt.Sprintf("%sM", strconv.FormatInt(n, 10))
-	}
-	if n < tb {
-		nf := float64(n) / gb
-		return fmt.Sprintf("%sG", unpadFloat(nf))
-	}
-	nf := float64(n) / tb
-	return fmt.Sprintf("%sT", unpadFloat(nf))
+func unpadFloat(f float64, maxp int) string {
+	return strconv.FormatFloat(f, 'f', getPrecision(f, maxp), 64)
 }
 
-func unpadFloat(f float64) string {
-	return strconv.FormatFloat(f, 'f', getPrecision(f), 64)
-}
-
-func getPrecision(f float64) int {
+func getPrecision(f float64, maxp int) int {
 	frac := int((f - float64(int(f))) * 100)
-	if frac == 0 {
+	if frac == 0 || maxp == 0 {
 		return 0
 	}
-	if frac%10 == 0 {
+	if frac%10 == 0 || maxp < 2 {
 		return 1
 	}
-	return 2 // default precision
+	return maxp
 }

debug.go

@@ -12,6 +12,10 @@ import (
 var mstats = &runtime.MemStats{}
 
 func logEvent(e ui.Event) {
+	// skip timer events e.g. /timer/1s
+	if e.From == "timer" {
+		return
+	}
 	var s string
 	s += fmt.Sprintf("Type=%s", quote(e.Type))
 	s += fmt.Sprintf(" Path=%s", quote(e.Path))

go.mod

@@ -1,32 +1,60 @@
 module github.com/bcicen/ctop
 
 require (
-	github.com/BurntSushi/toml v0.3.0
+	github.com/BurntSushi/toml v0.3.1
 	github.com/c9s/goprocinfo v0.0.0-20170609001544-b34328d6e0cd
-	github.com/checkpoint-restore/go-criu v0.0.0-20190109184317-bdb7599cd87b // indirect
-	github.com/containerd/console v0.0.0-20181022165439-0650fd9eeb50 // indirect
-	github.com/coreos/go-systemd v0.0.0-20151104194251-b4a58d95188d // indirect
-	github.com/cyphar/filepath-securejoin v0.2.2 // indirect
-	github.com/fsouza/go-dockerclient v1.4.1
-	github.com/gizak/termui v2.3.0+incompatible
-	github.com/godbus/dbus v0.0.0-20151105175453-c7fdd8b5cd55 // indirect
+	github.com/fsouza/go-dockerclient v1.7.0
+	github.com/gizak/termui v2.3.1-0.20180817033724-8d4faad06196+incompatible
+	github.com/hako/durafmt v0.0.0-20210608085754-5c1018a4e16b
 	github.com/jgautheron/codename-generator v0.0.0-20150829203204-16d037c7cc3c
-	github.com/mattn/go-runewidth v0.0.0-20170201023540-14207d285c6c // indirect
-	github.com/mitchellh/go-wordwrap v0.0.0-20150314170334-ad45545899c7 // indirect
-	github.com/mrunalp/fileutils v0.0.0-20171103030105-7d4729fb3618 // indirect
-	github.com/nsf/termbox-go v0.0.0-20180303152453-e2050e41c884
+	github.com/mattn/go-runewidth v0.0.2
+	github.com/nsf/termbox-go v0.0.0-20190121233118-02980233997d
 	github.com/nu7hatch/gouuid v0.0.0-20131221200532-179d4d0c4d8d
 	github.com/op/go-logging v0.0.0-20160211212156-b2cb9fa56473
-	github.com/opencontainers/runc v1.0.0-rc8
-	github.com/opencontainers/runtime-spec v1.0.1 // indirect
-	github.com/opencontainers/selinux v1.2.2 // indirect
-	github.com/pkg/errors v0.8.1
-	github.com/seccomp/libseccomp-golang v0.0.0-20150813023252-1b506fc7c24e // indirect
-	github.com/syndtr/gocapability v0.0.0-20180916011248-d98352740cb2 // indirect
-	github.com/vishvananda/netlink v0.0.0-20150820014904-1e2e08e8a2dc // indirect
-	github.com/vishvananda/netns v0.0.0-20180720170159-13995c7128cc // indirect
+	github.com/opencontainers/runc v1.1.5
+	github.com/pkg/browser v0.0.0-20201207095918-0426ae3fba23
+	github.com/pkg/errors v0.9.1
 )
 
-replace github.com/gizak/termui => github.com/bcicen/termui v0.0.0-20180326052246-4eb80249d3f5
+require (
+	github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78 // indirect
+	github.com/Microsoft/go-winio v0.4.16 // indirect
+	github.com/Microsoft/hcsshim v0.8.10 // indirect
+	github.com/checkpoint-restore/go-criu/v5 v5.3.0 // indirect
+	github.com/cilium/ebpf v0.7.0 // indirect
+	github.com/containerd/cgroups v0.0.0-20200531161412-0dbf7f05ba59 // indirect
+	github.com/containerd/console v1.0.3 // indirect
+	github.com/containerd/containerd v1.4.1 // indirect
+	github.com/containerd/continuity v0.0.0-20200928162600-f2cc35102c2a // indirect
+	github.com/coreos/go-systemd/v22 v22.3.2 // indirect
+	github.com/cyphar/filepath-securejoin v0.2.3 // indirect
+	github.com/docker/docker v20.10.0-beta1.0.20201113105859-b6bfff2a628f+incompatible // indirect
+	github.com/docker/go-connections v0.4.0 // indirect
+	github.com/docker/go-units v0.4.0 // indirect
+	github.com/godbus/dbus/v5 v5.0.6 // indirect
+	github.com/gogo/protobuf v1.3.1 // indirect
+	github.com/hashicorp/golang-lru v0.5.1 // indirect
+	github.com/maruel/panicparse v1.6.1 // indirect
+	github.com/mitchellh/go-wordwrap v0.0.0-20150314170334-ad45545899c7 // indirect
+	github.com/moby/sys/mount v0.2.0 // indirect
+	github.com/moby/sys/mountinfo v0.5.0 // indirect
+	github.com/moby/term v0.0.0-20201110203204-bea5bbe245bf // indirect
+	github.com/morikuni/aec v1.0.0 // indirect
+	github.com/mrunalp/fileutils v0.5.0 // indirect
+	github.com/opencontainers/go-digest v1.0.0 // indirect
+	github.com/opencontainers/image-spec v1.0.1 // indirect
+	github.com/opencontainers/runtime-spec v1.0.3-0.20210326190908-1c3f411f0417 // indirect
+	github.com/opencontainers/selinux v1.10.0 // indirect
+	github.com/seccomp/libseccomp-golang v0.9.2-0.20220502022130-f33da4d89646 // indirect
+	github.com/sirupsen/logrus v1.8.1 // indirect
+	github.com/syndtr/gocapability v0.0.0-20200815063812-42c35b437635 // indirect
+	github.com/vishvananda/netlink v1.1.0 // indirect
+	github.com/vishvananda/netns v0.0.0-20191106174202-0a2b9b5464df // indirect
+	go.opencensus.io v0.22.0 // indirect
+	golang.org/x/net v0.0.0-20201224014010-6772e930b67b // indirect
+	golang.org/x/sync v0.0.0-20190423024810-112230192c58 // indirect
+	golang.org/x/sys v0.0.0-20211116061358-0a5406a5449c // indirect
+	google.golang.org/protobuf v1.27.1 // indirect
+)
 
-go 1.13
+go 1.18

go.sum

@@ -1,103 +1,255 @@
+bazil.org/fuse v0.0.0-20160811212531-371fbbdaa898/go.mod h1:Xbm+BRKSBEpa4q4hTSxohYNQpsxXPbPry4JJWOB3LB8=
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
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-golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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 golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20190310054646-10058d7d4faa h1:lqti/xP+yD/6zH5TqEwx2MilNIJY5Vbc6Qr8J3qyPIQ=
-golang.org/x/sys v0.0.0-20190310054646-10058d7d4faa/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-google.golang.org/genproto v0.0.0-20180831171423-11092d34479b/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
+golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1 h1:v+OssWQX+hTHEmOBgwxdZxK4zHq3yOs8F9J7mk0PY8E=
+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
+golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20181030221726-6c7e314b6563/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
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+golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
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+golang.org/x/tools v0.0.0-20190624222133-a101b041ded4/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
+google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
+google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
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+google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
+google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
+google.golang.org/grpc v1.23.1/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
+google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
+google.golang.org/protobuf v1.27.1 h1:SnqbnDw1V7RiZcXPx5MEeqPv2s79L9i7BJUlG/+RurQ=
+google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
+gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gotest.tools v2.2.0+incompatible h1:VsBPFP1AI068pPrMxtb/S8Zkgf9xEmTLJjfM+P5UIEo=
 gotest.tools v2.2.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw=
+gotest.tools/v3 v3.0.2/go.mod h1:3SzNCllyD9/Y+b5r9JIKQ474KzkZyqLqEfYqMsX94Bk=
+gotest.tools/v3 v3.0.3 h1:4AuOwCGf4lLR9u3YOe2awrHygurzhO/HeQ6laiA6Sx0=
+gotest.tools/v3 v3.0.3/go.mod h1:Z7Lb0S5l+klDB31fvDQX8ss/FlKDxtlFlw3Oa8Ymbl8=
+honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

grid.go

@@ -83,7 +83,7 @@ func SingleView() MenuFn {
 	ui.DefaultEvtStream.ResetHandlers()
 	defer ui.DefaultEvtStream.ResetHandlers()
 
-	ex := single.NewSingle(c.Id)
+	ex := single.NewSingle()
 	c.SetUpdater(ex)
 
 	ex.Align()
@@ -162,6 +162,9 @@ func Display() bool {
 		menu = ExecShell
 		ui.StopLoop()
 	})
+	ui.Handle("/sys/kbd/w", func(ui.Event) {
+		menu = OpenInBrowser()
+	})
 	ui.Handle("/sys/kbd/o", func(ui.Event) {
 		menu = SingleView
 		ui.StopLoop()
@@ -191,6 +194,10 @@ func Display() bool {
 		menu = SortMenu
 		ui.StopLoop()
 	})
+	ui.Handle("/sys/kbd/c", func(ui.Event) {
+		menu = ColumnsMenu
+		ui.StopLoop()
+	})
 	ui.Handle("/sys/kbd/S", func(ui.Event) {
 		path, err := config.Write()
 		if err == nil {

logging/main.go

@@ -29,6 +29,7 @@ type statusMsg struct {
 type CTopLogger struct {
 	*logging.Logger
 	backend *logging.MemoryBackend
+	logFile *os.File
 	sLog    []statusMsg
 }
 
@@ -58,18 +59,37 @@ func Init() *CTopLogger {
 		Log = &CTopLogger{
 			logging.MustGetLogger("ctop"),
 			logging.NewMemoryBackend(size),
+			nil,
 			[]statusMsg{},
 		}
 
-		if debugMode() {
+		debugMode := debugMode()
+		if debugMode {
 			level = logging.DEBUG
-			StartServer()
 		}
-
 		backendLvl := logging.AddModuleLevel(Log.backend)
 		backendLvl.SetLevel(level, "")
 
-		logging.SetBackend(backendLvl)
+		logFilePath := debugModeFile()
+		if logFilePath == "" {
+			logging.SetBackend(backendLvl)
+		} else {
+			logFile, err := os.OpenFile(logFilePath, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0666)
+			if err != nil {
+				logging.SetBackend(backendLvl)
+				Log.Error("Unable to create log file: %s", err.Error())
+			} else {
+				backendFile := logging.NewLogBackend(logFile, "", 0)
+				backendFileLvl := logging.AddModuleLevel(backendFile)
+				backendFileLvl.SetLevel(level, "")
+				logging.SetBackend(backendLvl, backendFileLvl)
+				Log.logFile = logFile
+			}
+		}
+
+		if debugMode {
+			StartServer()
+		}
 		Log.Notice("logger initialized")
 	}
 	return Log
@@ -102,8 +122,12 @@ func (log *CTopLogger) tail() chan string {
 
 func (log *CTopLogger) Exit() {
 	exited = true
+	if log.logFile != nil {
+		_ = log.logFile.Close()
+	}
 	StopServer()
 }
 
-func debugMode() bool    { return os.Getenv("CTOP_DEBUG") == "1" }
-func debugModeTCP() bool { return os.Getenv("CTOP_DEBUG_TCP") == "1" }
+func debugMode() bool       { return os.Getenv("CTOP_DEBUG") == "1" }
+func debugModeTCP() bool    { return os.Getenv("CTOP_DEBUG_TCP") == "1" }
+func debugModeFile() string { return os.Getenv("CTOP_DEBUG_FILE") }

main.go

@@ -44,9 +44,7 @@ func main() {
 		sortFieldFlag   = flag.String("s", "", "select container sort field")
 		reverseSortFlag = flag.Bool("r", false, "reverse container sort order")
 		invertFlag      = flag.Bool("i", false, "invert default colors")
-		scaleCpu        = flag.Bool("scale-cpu", false, "show cpu as % of system total")
 		connectorFlag   = flag.String("connector", "docker", "container connector to use")
-		defaultShell    = flag.String("shell", "", "default shell")
 	)
 	flag.Parse()
 
@@ -65,7 +63,9 @@ func main() {
 
 	// init global config and read config file if exists
 	config.Init()
-	config.Read()
+	if err := config.Read(); err != nil {
+		log.Warningf("reading config: %s", err)
+	}
 
 	// override default config values with command line flags
 	if *filterFlag != "" {
@@ -85,14 +85,6 @@ func main() {
 		config.Toggle("sortReversed")
 	}
 
-	if *scaleCpu {
-		config.Toggle("scaleCpu")
-	}
-
-	if *defaultShell != "" {
-		config.Update("shell", *defaultShell)
-	}
-
 	// init ui
 	if *invertFlag {
 		InvertColorMap()

menus.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"fmt"
+	"strings"
 	"time"
 
 	"github.com/bcicen/ctop/config"
@@ -9,6 +10,7 @@ import (
 	"github.com/bcicen/ctop/widgets"
 	"github.com/bcicen/ctop/widgets/menu"
 	ui "github.com/gizak/termui"
+	"github.com/pkg/browser"
 )
 
 // MenuFn executes a menu window, returning the next menu or nil
@@ -26,6 +28,8 @@ var helpDialog = []menu.Item{
 	{"[o] - open single view", ""},
 	{"[l] - view container logs ([t] to toggle timestamp when open)", ""},
 	{"[e] - exec shell", ""},
+	{"[w] - open browser (first port is http)", ""},
+	{"[c] - configure columns", ""},
 	{"[S] - save current configuration to file", ""},
 	{"[q] - exit ctop", ""},
 }
@@ -104,7 +108,90 @@ func SortMenu() MenuFn {
 	HandleKeys("exit", ui.StopLoop)
 
 	ui.Handle("/sys/kbd/<enter>", func(ui.Event) {
-		config.Update("sortField", m.SelectedItem().Val)
+		config.Update("sortField", m.SelectedValue())
+		ui.StopLoop()
+	})
+
+	ui.Render(m)
+	ui.Loop()
+	return nil
+}
+
+func ColumnsMenu() MenuFn {
+	const (
+		enabledStr  = "[X]"
+		disabledStr = "[ ]"
+		padding     = 2
+	)
+
+	ui.Clear()
+	ui.DefaultEvtStream.ResetHandlers()
+	defer ui.DefaultEvtStream.ResetHandlers()
+
+	m := menu.NewMenu()
+	m.Selectable = true
+	m.SortItems = false
+	m.BorderLabel = "Columns"
+	m.SubText = "Re-order: <Page Up> / <Page Down>"
+
+	rebuild := func() {
+		// get padding for right alignment of enabled status
+		var maxLen int
+		for _, col := range config.GlobalColumns {
+			if len(col.Label) > maxLen {
+				maxLen = len(col.Label)
+			}
+		}
+		maxLen += padding
+
+		// rebuild menu items
+		m.ClearItems()
+		for _, col := range config.GlobalColumns {
+			txt := col.Label + strings.Repeat(" ", maxLen-len(col.Label))
+			if col.Enabled {
+				txt += enabledStr
+			} else {
+				txt += disabledStr
+			}
+			m.AddItems(menu.Item{col.Name, txt})
+		}
+	}
+
+	upFn := func() {
+		config.ColumnLeft(m.SelectedValue())
+		m.Up()
+		rebuild()
+	}
+
+	downFn := func() {
+		config.ColumnRight(m.SelectedValue())
+		m.Down()
+		rebuild()
+	}
+
+	toggleFn := func() {
+		config.ColumnToggle(m.SelectedValue())
+		rebuild()
+	}
+
+	rebuild()
+
+	HandleKeys("up", m.Up)
+	HandleKeys("down", m.Down)
+	HandleKeys("enter", toggleFn)
+	HandleKeys("pgup", upFn)
+	HandleKeys("pgdown", downFn)
+
+	ui.Handle("/sys/kbd/x", func(ui.Event) { toggleFn() })
+	ui.Handle("/sys/kbd/<enter>", func(ui.Event) { toggleFn() })
+
+	HandleKeys("exit", func() {
+		cSource, err := cursor.cSuper.Get()
+		if err == nil {
+			for _, c := range cSource.All() {
+				c.RecreateWidgets()
+			}
+		}
 		ui.StopLoop()
 	})
 
@@ -136,6 +223,9 @@ func ContainerMenu() MenuFn {
 		items = append(items, menu.Item{Val: "pause", Label: "[p] pause"})
 		items = append(items, menu.Item{Val: "restart", Label: "[r] restart"})
 		items = append(items, menu.Item{Val: "exec", Label: "[e] exec shell"})
+		if c.Meta["Web Port"] != "" {
+			items = append(items, menu.Item{Val: "browser", Label: "[w] open in browser"})
+		}
 	}
 	if c.Meta["state"] == "exited" || c.Meta["state"] == "created" {
 		items = append(items, menu.Item{Val: "start", Label: "[s] start"})
@@ -173,7 +263,7 @@ func ContainerMenu() MenuFn {
 			ui.StopLoop()
 		})
 	}
-	if c.Meta["state"] != "exited" || c.Meta["state"] != "created" {
+	if c.Meta["state"] != "exited" && c.Meta["state"] != "created" {
 		ui.Handle("/sys/kbd/p", func(ui.Event) {
 			if c.Meta["state"] == "paused" {
 				selected = "unpause"
@@ -192,6 +282,11 @@ func ContainerMenu() MenuFn {
 			selected = "restart"
 			ui.StopLoop()
 		})
+		if c.Meta["Web Port"] != "" {
+			ui.Handle("/sys/kbd/w", func(ui.Event) {
+				selected = "browser"
+			})
+		}
 	}
 	ui.Handle("/sys/kbd/R", func(ui.Event) {
 		selected = "remove"
@@ -202,7 +297,7 @@ func ContainerMenu() MenuFn {
 	})
 
 	ui.Handle("/sys/kbd/<enter>", func(ui.Event) {
-		selected = m.SelectedItem().Val
+		selected = m.SelectedValue()
 		ui.StopLoop()
 	})
 	ui.Handle("/sys/kbd/", func(ui.Event) {
@@ -218,6 +313,8 @@ func ContainerMenu() MenuFn {
 		nextMenu = LogMenu
 	case "exec":
 		nextMenu = ExecShell
+	case "browser":
+		nextMenu = OpenInBrowser
 	case "start":
 		nextMenu = Confirm(confirmTxt("start", c.GetMeta("name")), c.Start)
 	case "stop":
@@ -273,15 +370,37 @@ func ExecShell() MenuFn {
 
 	ui.DefaultEvtStream.ResetHandlers()
 	defer ui.DefaultEvtStream.ResetHandlers()
-
-	shell := config.Get("shell")
-	if err := c.Exec([]string{shell.Val, "-c", "printf '\\e[0m\\e[?25h' && clear && " + shell.Val}); err != nil {
-		log.Fatal(err)
+	// Detect and execute default shell in container.
+	// Execute Ash shell command: /bin/sh -c
+	// Reset colors: printf '\e[0m\e[?25h'
+	// Clear screen
+	// Run default shell for the user. It's configured in /etc/passwd and looks like root:x:0:0:root:/root:/bin/bash:
+	//  1. Get current user id: id -un
+	//  2. Find user's line in /etc/passwd by grep
+	//  3. Extract default user's shell by cutting seven's column separated by :
+	//  4. Execute the shell path with eval
+	if err := c.Exec([]string{"/bin/sh", "-c", "printf '\\e[0m\\e[?25h' && clear && eval `grep ^$(id -un): /etc/passwd | cut -d : -f 7-`"}); err != nil {
+		log.StatusErr(err)
 	}
 
 	return nil
 }
 
+func OpenInBrowser() MenuFn {
+	c := cursor.Selected()
+	if c == nil {
+		return nil
+	}
+
+	webPort := c.Meta.Get("Web Port")
+	if webPort == "" {
+		return nil
+	}
+	link := "http://" + webPort + "/"
+	browser.OpenURL(link)
+	return nil
+}
+
 // Create a confirmation dialog with a given description string and
 // func to perform if confirmed
 func Confirm(txt string, fn func()) MenuFn {
@@ -321,7 +440,7 @@ func Confirm(txt string, fn func()) MenuFn {
 		ui.Handle("/sys/kbd/y", func(ui.Event) { yes() })
 
 		ui.Handle("/sys/kbd/<enter>", func(ui.Event) {
-			switch m.SelectedItem().Val {
+			switch m.SelectedValue() {
 			case "cancel":
 				no()
 			case "yes":

models/main.go

@@ -7,7 +7,31 @@ type Log struct {
 	Message   string
 }
 
+type Meta map[string]string
+
+// NewMeta returns an initialized Meta map.
+// An optional series of key, values may be provided to populate the map prior to returning
+func NewMeta(kvs ...string) Meta {
+	m := make(Meta)
+
+	var i int
+	for i < len(kvs)-1 {
+		m[kvs[i]] = kvs[i+1]
+		i += 2
+	}
+
+	return m
+}
+
+func (m Meta) Get(k string) string {
+	if s, ok := m[k]; ok {
+		return s
+	}
+	return ""
+}
+
 type Metrics struct {
+	NCpus        uint8
 	CPUUtil      int
 	NetTx        int64
 	NetRx        int64

widgets/menu/main.go

@@ -11,13 +11,14 @@ type Padding [2]int // x,y padding
 type Menu struct {
 	ui.Block
 	SortItems   bool   // enable automatic sorting of menu items
+	Selectable  bool   // whether menu is navigable
 	SubText     string // optional text to display before items
 	TextFgColor ui.Attribute
 	TextBgColor ui.Attribute
-	Selectable  bool
 	cursorPos   int
 	items       Items
 	padding     Padding
+	toolTip     *ToolTip
 }
 
 func NewMenu() *Menu {
@@ -55,6 +56,11 @@ func (m *Menu) DelItem(s string) (success bool) {
 	return success
 }
 
+// ClearItems removes all current menu items
+func (m *Menu) ClearItems() {
+	m.items = m.items[:0]
+}
+
 // Move cursor to an position by Item value or label
 func (m *Menu) SetCursor(s string) (success bool) {
 	for n, i := range m.items {
@@ -66,19 +72,19 @@ func (m *Menu) SetCursor(s string) (success bool) {
 	return false
 }
 
-// Sort menu items(if enabled) and re-calculate window size
-func (m *Menu) refresh() {
-	if m.SortItems {
-		sort.Sort(m.items)
-	}
-	m.calcSize()
-	ui.Render(m)
+// SetToolTip sets an optional tooltip string to show at bottom of screen
+func (m *Menu) SetToolTip(lines ...string) {
+	m.toolTip = NewToolTip(lines...)
 }
 
 func (m *Menu) SelectedItem() Item {
 	return m.items[m.cursorPos]
 }
 
+func (m *Menu) SelectedValue() string {
+	return m.items[m.cursorPos].Val
+}
+
 func (m *Menu) Buffer() ui.Buffer {
 	var cell ui.Cell
 	buf := m.Block.Buffer()
@@ -108,6 +114,10 @@ func (m *Menu) Buffer() ui.Buffer {
 		}
 	}
 
+	if m.toolTip != nil {
+		buf.Merge(m.toolTip.Buffer())
+	}
+
 	return buf
 }
 
@@ -125,6 +135,15 @@ func (m *Menu) Down() {
 	}
 }
 
+// Sort menu items(if enabled) and re-calculate window size
+func (m *Menu) refresh() {
+	if m.SortItems {
+		sort.Sort(m.items)
+	}
+	m.calcSize()
+	ui.Render(m)
+}
+
 // Set width and height based on menu items
 func (m *Menu) calcSize() {
 	m.Width = 7 // minimum width

widgets/menu/tooltip.go

@@ -0,0 +1,55 @@
+package menu
+
+import (
+	ui "github.com/gizak/termui"
+)
+
+type ToolTip struct {
+	ui.Block
+	Lines       []string
+	TextFgColor ui.Attribute
+	TextBgColor ui.Attribute
+	padding     Padding
+}
+
+func NewToolTip(lines ...string) *ToolTip {
+	t := &ToolTip{
+		Block:       *ui.NewBlock(),
+		Lines:       lines,
+		TextFgColor: ui.ThemeAttr("menu.text.fg"),
+		TextBgColor: ui.ThemeAttr("menu.text.bg"),
+		padding:     Padding{2, 1},
+	}
+	t.BorderFg = ui.ThemeAttr("menu.border.fg")
+	t.BorderLabelFg = ui.ThemeAttr("menu.label.fg")
+	t.X = 1
+	t.Align()
+	return t
+}
+
+func (t *ToolTip) Buffer() ui.Buffer {
+	var cell ui.Cell
+	buf := t.Block.Buffer()
+
+	y := t.Y + t.padding[1]
+
+	for n, line := range t.Lines {
+		x := t.X + t.padding[0]
+		for _, ch := range line {
+			cell = ui.Cell{Ch: ch, Fg: t.TextFgColor, Bg: t.TextBgColor}
+			buf.Set(x, y+n, cell)
+			x++
+		}
+	}
+
+	return buf
+}
+
+// Set width and height based on screen size
+func (t *ToolTip) Align() {
+	t.Width = ui.TermWidth() - (t.padding[0] * 2)
+	t.Height = len(t.Lines) + (t.padding[1] * 2)
+	t.Y = ui.TermHeight() - t.Height
+
+	t.Block.Align()
+}

widgets/view.go

@@ -2,6 +2,7 @@ package widgets
 
 import (
 	ui "github.com/gizak/termui"
+	"github.com/mattn/go-runewidth"
 )
 
 type ToggleText interface {
@@ -70,7 +71,7 @@ func (t *TextView) Buffer() ui.Buffer {
 		for _, ch := range line {
 			cell = ui.Cell{Ch: ch, Fg: t.TextFgColor, Bg: t.TextBgColor}
 			buf.Set(x, y, cell)
-			x++
+			x = x + runewidth.RuneWidth(ch)
 		}
 		x = t.Block.X + t.padding[0]
 		y++