Initial code.

.gitignore

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+*.cgo

Makefile

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+all:
+	go build -o docker-ps.10s.cgo

README.md

@@ -1 +1,3 @@
-# docker-ps-bitbar
+# docker-ps-bitbar
+
+[BitBar](https://getbitbar.com) plugin that displays statuses of local Docker containers.

docker-ps.10s.go

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+//usr/bin/env go run $0 $@; exit $?
+
+// <bitbar.title>docker-ps</bitbar.title>
+// <bitbar.version>v1.0</bitbar.version>
+// <bitbar.author>Alexey Palazhchenko</bitbar.author>
+// <bitbar.author.github>AlekSi</bitbar.author.github>
+// <bitbar.desc>Displays statuses of local Docker containers.</bitbar.desc>
+// <bitbar.dependencies>go,docker</bitbar.dependencies>
+// <bitbar.abouturl>https://github.com/AlekSi/docker-ps-bitbar</bitbar.abouturl>
+
+package main
+
+import (
+	"bytes"
+	"encoding/json"
+	"flag"
+	"fmt"
+	"io"
+	"log"
+	"os"
+	"os/exec"
+	"strings"
+	"time"
+)
+
+const dockerBin = "/usr/local/bin/docker"
+
+type container struct {
+	Command      string `json:"Command"`
+	CreatedAt    string `json:"CreatedAt"`
+	ID           string `json:"ID"`
+	Image        string `json:"Image"`
+	Labels       string `json:"Labels"`
+	LocalVolumes string `json:"LocalVolumes"`
+	Mounts       string `json:"Mounts"`
+	Names        string `json:"Names"`
+	Networks     string `json:"Networks"`
+	Ports        string `json:"Ports"`
+	RunningFor   string `json:"RunningFor"`
+	Size         string `json:"Size"`
+	Status       string `json:"Status"`
+}
+
+func (c *container) createdAt() time.Time {
+	t, _ := time.Parse("2006-01-02 15:04:05 -0700 MST", c.CreatedAt)
+	return t
+}
+
+func (c *container) running() bool {
+	return strings.HasPrefix(c.Status, "Up ")
+}
+
+func ps() (res []container, err error) {
+	cmd := exec.Command(dockerBin, "ps", "--all", "--no-trunc", "--format={{json .}}")
+	var b []byte
+	if b, err = cmd.Output(); err != nil {
+		return
+	}
+
+	d := json.NewDecoder(bytes.NewReader(b))
+	for {
+		var c container
+		if err = d.Decode(&c); err != nil {
+			if err == io.EOF {
+				err = nil
+			}
+			return
+		}
+		res = append(res, c)
+	}
+}
+
+func pruneCmd() {
+	cmd := exec.Command(dockerBin, "system", "prune", "--force", "--volumes")
+	if err := cmd.Run(); err != nil {
+		log.Fatal(err)
+	}
+}
+
+func wipeCmd() {
+	containers, err := ps()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	var ids []string
+	for _, c := range containers {
+		if c.running() {
+			ids = append(ids, c.ID)
+		}
+	}
+	if len(ids) > 0 {
+		args := append([]string{"kill"}, ids...)
+		cmd := exec.Command(dockerBin, args...)
+		if err = cmd.Run(); err != nil {
+			log.Fatal(err)
+		}
+	}
+
+	pruneCmd()
+}
+
+func defaultCmd() {
+	bin, _ := os.Executable()
+
+	containers, err := ps()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	if len(containers) == 0 {
+		fmt.Println("🐳")
+	} else {
+		var running int
+		for _, c := range containers {
+			if c.running() {
+				running++
+			}
+		}
+		fmt.Printf("🐳%d/%d\n", running, len(containers))
+	}
+	fmt.Println("---")
+
+	for _, c := range containers {
+		fmt.Printf("%s (%s) | ", c.Names, c.Image)
+		if c.running() {
+			fmt.Printf("color=green bash=%q param1=stop param2=%s terminal=false refresh=true\n", dockerBin, c.ID)
+		} else {
+			fmt.Printf("color=red bash=%q param1=start param2=%s terminal=false refresh=true\n", dockerBin, c.ID)
+		}
+	}
+	fmt.Println("---")
+
+	fmt.Printf("🛑 Stop all | bash=%q param1=stop ", dockerBin)
+	for i, c := range containers {
+		fmt.Printf("param%d=%s ", i+2, c.ID)
+	}
+	fmt.Println("terminal=false refresh=true")
+
+	if bin != "" {
+		fmt.Printf("📛 Prune | bash=%q param1=-prune terminal=false refresh=true\n", bin)
+		fmt.Printf("🧨 Stop all and prune | bash=%q param1=-wipe terminal=false refresh=true\n", bin)
+	}
+}
+
+func main() {
+	pruneF := flag.Bool("prune", false, "prune all data")
+	wipeF := flag.Bool("wipe", false, "stop all containers and prune all data")
+	flag.Parse()
+
+	switch {
+	case *pruneF:
+		pruneCmd()
+	case *wipeF:
+		wipeCmd()
+	default:
+		defaultCmd()
+	}
+}

go.mod

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+module github.com/AlekSi/docker-ps-bitbar
+
+go 1.12