278 lines
6.5 KiB
Go
278 lines
6.5 KiB
Go
package main
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import (
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"encoding/json"
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"flag"
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"fmt"
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"io/ioutil"
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"log"
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"os"
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"os/exec"
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"path/filepath"
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"runtime"
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"strings"
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"github.com/github/git-lfs/config"
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)
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var (
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BuildOS = flag.String("os", "", "OS to target: darwin, freebsd, linux, windows")
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BuildArch = flag.String("arch", "", "Arch to target: 386, amd64")
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BuildAll = flag.Bool("all", false, "Builds all architectures")
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ShowHelp = flag.Bool("help", false, "Shows help")
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matrixKeys = map[string]string{
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"darwin": "Mac",
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"freebsd": "FreeBSD",
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"linux": "Linux",
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"windows": "Windows",
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"amd64": "AMD64",
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}
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LdFlag string
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)
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func mainBuild() {
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if *ShowHelp {
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fmt.Println("usage: script/bootstrap [-os] [-arch] [-all]")
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flag.PrintDefaults()
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return
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}
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fmt.Printf("Using %s\n", runtime.Version())
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genOut, err := exec.Command("go", "generate", "./commands").CombinedOutput()
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if err != nil {
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fmt.Fprintf(os.Stderr, "go generate failed:\n%v", string(genOut))
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os.Exit(1)
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}
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cmd, _ := exec.Command("git", "rev-parse", "--short", "HEAD").Output()
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if len(cmd) > 0 {
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LdFlag = strings.TrimSpace("-X github.com/github/git-lfs/config.GitCommit=" + string(cmd))
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}
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buildMatrix := make(map[string]Release)
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errored := false
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if *BuildAll {
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for _, buildos := range []string{"linux", "darwin", "freebsd"} {
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for _, buildarch := range []string{"amd64", "386"} {
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if err := build(buildos, buildarch, buildMatrix); err != nil {
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errored = true
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}
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}
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}
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} else {
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if err := build(*BuildOS, *BuildArch, buildMatrix); err != nil {
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log.Fatalln(err)
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}
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return // skip build matrix stuff
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}
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if errored {
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os.Exit(1)
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}
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by, err := json.Marshal(buildMatrix)
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if err != nil {
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log.Fatalln("Error encoding build matrix to json:", err)
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}
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file, err := os.Create("bin/releases/build_matrix.json")
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if err != nil {
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log.Fatalln("Error creating build_matrix.json:", err)
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}
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written, err := file.Write(by)
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file.Close()
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if err != nil {
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log.Fatalln("Error writing build_matrix.json", err)
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}
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if jsonSize := len(by); written != jsonSize {
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log.Fatalf("Expected to write %d bytes, actually wrote %d.\n", jsonSize, written)
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}
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}
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func build(buildos, buildarch string, buildMatrix map[string]Release) error {
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addenv := len(buildos) > 0 && len(buildarch) > 0
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name := "git-lfs-" + config.Version
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dir := "bin"
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if addenv {
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fmt.Printf("Building for %s/%s\n", buildos, buildarch)
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dir = filepath.Join(dir, "releases", buildos+"-"+buildarch, name)
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}
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if err := buildCommand(dir, buildos, buildarch); err != nil {
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return err
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}
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if addenv {
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err := os.MkdirAll(dir, 0755)
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if err != nil {
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log.Println("Error setting up installer:\n", err.Error())
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return err
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}
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err = setupInstaller(buildos, buildarch, dir, buildMatrix)
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if err != nil {
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log.Println("Error setting up installer:\n", err.Error())
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return err
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}
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}
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return nil
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}
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func buildCommand(dir, buildos, buildarch string) error {
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addenv := len(buildos) > 0 && len(buildarch) > 0
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bin := filepath.Join(dir, "git-lfs")
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if buildos == "windows" {
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bin = bin + ".exe"
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}
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args := make([]string, 1, 6)
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args[0] = "build"
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if len(LdFlag) > 0 {
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args = append(args, "-ldflags", LdFlag)
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}
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args = append(args, "-o", bin, ".")
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cmd := exec.Command("go", args...)
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if addenv {
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cmd.Env = buildGoEnv(buildos, buildarch)
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}
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output, err := cmd.CombinedOutput()
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if len(output) > 0 {
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fmt.Println(string(output))
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}
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return err
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}
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func buildGoEnv(buildos, buildarch string) []string {
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env := make([]string, 6, 9)
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env[0] = "GOOS=" + buildos
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env[1] = "GOARCH=" + buildarch
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env[2] = "GOPATH=" + os.Getenv("GOPATH")
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env[3] = "GOROOT=" + os.Getenv("GOROOT")
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env[4] = "PATH=" + os.Getenv("PATH")
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env[5] = "GO15VENDOREXPERIMENT=" + os.Getenv("GO15VENDOREXPERIMENT")
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for _, key := range []string{"TMP", "TEMP", "TEMPDIR"} {
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v := os.Getenv(key)
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if len(v) == 0 {
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continue
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}
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env = append(env, key+"="+v)
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}
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return env
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}
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func setupInstaller(buildos, buildarch, dir string, buildMatrix map[string]Release) error {
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textfiles := []string{
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"README.md", "CHANGELOG.md",
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}
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if buildos == "windows" {
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return winInstaller(textfiles, buildos, buildarch, dir, buildMatrix)
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} else {
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return unixInstaller(textfiles, buildos, buildarch, dir, buildMatrix)
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}
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}
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func unixInstaller(textfiles []string, buildos, buildarch, dir string, buildMatrix map[string]Release) error {
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for _, filename := range textfiles {
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cmd := exec.Command("cp", filename, filepath.Join(dir, filename))
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if err := logAndRun(cmd); err != nil {
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return err
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}
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}
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fullInstallPath := filepath.Join(dir, "install.sh")
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cmd := exec.Command("cp", "script/install.sh.example", fullInstallPath)
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if err := logAndRun(cmd); err != nil {
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return err
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}
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if err := os.Chmod(fullInstallPath, 0755); err != nil {
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return err
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}
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name := zipName(buildos, buildarch) + ".tar.gz"
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addToMatrix(buildMatrix, buildos, buildarch, name)
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cmd = exec.Command("tar", "czf", "../"+name, filepath.Base(dir))
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cmd.Dir = filepath.Dir(dir)
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return logAndRun(cmd)
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}
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func winInstaller(textfiles []string, buildos, buildarch, dir string, buildMatrix map[string]Release) error {
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for _, filename := range textfiles {
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by, err := ioutil.ReadFile(filename)
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if err != nil {
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return err
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}
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winEndings := strings.Replace(string(by), "\n", "\r\n", -1)
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err = ioutil.WriteFile(filepath.Join(dir, filename), []byte(winEndings), 0644)
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if err != nil {
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return err
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}
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}
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installerPath := filepath.Dir(filepath.Dir(dir))
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name := zipName(buildos, buildarch) + ".zip"
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full := filepath.Join(installerPath, name)
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matches, err := filepath.Glob(dir + "/*")
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if err != nil {
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return err
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}
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addToMatrix(buildMatrix, buildos, buildarch, name)
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args := make([]string, len(matches)+2)
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args[0] = "-j" // junk the zip paths
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args[1] = full
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copy(args[2:], matches)
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cmd := exec.Command("zip", args...)
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return logAndRun(cmd)
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}
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func addToMatrix(buildMatrix map[string]Release, buildos, buildarch, name string) {
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buildMatrix[fmt.Sprintf("%s-%s", buildos, buildarch)] = Release{
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Label: releaseLabel(buildos, buildarch),
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Filename: name,
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}
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}
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func logAndRun(cmd *exec.Cmd) error {
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fmt.Printf(" - %s\n", strings.Join(cmd.Args, " "))
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if len(cmd.Dir) > 0 {
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fmt.Printf(" - in %s\n", cmd.Dir)
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}
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output, err := cmd.CombinedOutput()
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fmt.Println(string(output))
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return err
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}
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func zipName(os, arch string) string {
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return fmt.Sprintf("git-lfs-%s-%s-%s", os, arch, config.Version)
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}
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func releaseLabel(buildos, buildarch string) string {
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return fmt.Sprintf("%s %s", key(buildos), key(buildarch))
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}
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func key(k string) string {
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if s, ok := matrixKeys[k]; ok {
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return s
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}
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return k
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}
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