add go

.github/workflows/goreleaser.yml

@@ -0,0 +1,20 @@
+name: goreleaser
+
+on:
+ - push
+
+jobs:
+ goreleaser:
+ runs-on: ubuntu-latest
+ steps:
+ - name: Checkout
+ uses: actions/checkout@master
+ - name: Set up Go
+ uses: actions/setup-go@master
+ - name: Run GoReleaser
+ uses: goreleaser/goreleaser-action@v1
+ with:
+ version: latest
+ args: release --rm-dist
+ env:
+ GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.gitignore

@@ -0,0 +1 @@
+/dist

.goreleaser.yml

@@ -0,0 +1,20 @@
+builds:
+ - main: ./cmd/pbcopy
+ binary: pbcopy
+ env:
+ - CGO_ENABLED=0
+ goos:
+ - linux
+ - darwin
+ goarch:
+ - amd64
+checksum:
+ name_template: 'pbcopy-checksums.txt'
+archives:
+ - name_template: "pbcopy-{{ .Os }}-{{ .Arch }}"
+changelog:
+ sort: asc
+ filters:
+ exclude:
+ - '^docs:'
+ - '^test:'

cmd/pbcopy/main.go

@@ -0,0 +1,108 @@
+package main
+
+import (
+ "bytes"
+ "encoding/base64"
+ "fmt"
+ "io"
+ "io/ioutil"
+ "os"
+ "os/exec"
+ "strings"
+)
+
+func normalEsc(b64 string) string {
+ return "\x1B]52;;" + b64 + "\x1B\x5C"
+}
+
+func tmuxEsc(b64 string) string {
+ return "\x1BPtmux;\x1B\x1B]52;;" + b64 + "\x1B\x1B\x5C\x5C\x1B\x5C"
+}
+
+func screenEsc(b64 string) string {
+ out := []string{}
+ for i := 0; ; i++ {
+ begin, end := i*76, (i+1)*76
+ if end > len(b64) {
+ end = len(b64)
+ }
+ if begin == 0 {
+ out = append(out, "\x1BP\x1B]52;;"+b64[begin:end])
+ } else {
+ out = append(out, "\x1B\x5C\x1BP"+b64[begin:end])
+ }
+ if end == len(b64) {
+ break
+ }
+ }
+ out = append(out, "\x07\x1B\x5C")
+ return strings.Join(out, "")
+}
+
+func isTmuxCC(pid string) bool {
+ out, err := exec.Command("ps", "-p", pid, "-o", "command=").Output()
+ if err != nil {
+ return false
+ }
+ out = bytes.TrimRight(out, "\n\r")
+ for _, argv := range strings.Split(string(out), " ") {
+ if argv == "-CC" {
+ return true
+ }
+ }
+ return false
+}
+
+func chooseEsc() func(string) string {
+ if env := os.Getenv("TMUX"); env != "" {
+ envs := strings.Split(env, ",")
+ if len(envs) > 1 {
+ pid := envs[1]
+ if isTmuxCC(pid) {
+ return normalEsc
+ }
+ }
+ return tmuxEsc
+ } else if env := os.Getenv("TERM"); strings.HasPrefix(env, "screen") {
+ return screenEsc
+ }
+ return normalEsc
+}
+
+func run() error {
+ var r io.Reader
+ switch len(os.Args) {
+ case 1:
+ r = os.Stdin
+ default:
+ if os.Args[1] == "-h" || os.Args[1] == "--help" {
+ fmt.Print("Usage:\n pbcopy FILE\n some-command | pbcopy\n")
+ os.Exit(1)
+ }
+ var err error
+ r, err = os.Open(os.Args[1])
+ if err != nil {
+ return err
+ }
+ }
+ b, err := ioutil.ReadAll(r)
+ if err != nil {
+ return err
+ }
+ b = bytes.TrimRight(b, "\n\r")
+ if len(b) == 0 {
+ return nil
+ }
+
+ esc := chooseEsc()
+ b64 := base64.RawStdEncoding.EncodeToString(b)
+ fmt.Print(esc(b64))
+ return nil
+}
+
+func main() {
+ if err := run(); err != nil {
+ fmt.Fprintln(os.Stderr, err)
+ os.Exit(1)
+ }
+}