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89 lines
2.0 KiB
Go
89 lines
2.0 KiB
Go
package main
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import (
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"flag"
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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"strings"
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"golang.org/x/mod/modfile"
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"golang.org/x/mod/module"
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"golang.org/x/mod/zip"
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)
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func modbasename(path string) string {
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parts := strings.Split(path, "/")
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return parts[len(parts)-1]
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}
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func zipcmd(args []string) {
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var (
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version string
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outputPath string
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)
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flags := flag.NewFlagSet("zip", flag.ExitOnError)
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flags.StringVar(&version, "version", "", "package version")
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flags.StringVar(&outputPath, "o", "", "output file path")
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flags.Parse(args)
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if version == "" {
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bail(1, "target release version is required")
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}
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pkgdir := flags.Arg(0)
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if pkgdir == "" {
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pkgdir = "."
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}
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modfilePath := filepath.Join(pkgdir, "go.mod")
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b, err := ioutil.ReadFile(modfilePath)
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if err != nil {
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bail(1, "unable to read modfile: %v", err)
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}
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log_info.Printf("checking modfile at path %q", modfilePath)
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f, err := modfile.Parse(modfilePath, b, nil)
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if err != nil {
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bail(1, "unable to parse modfile: %v", err)
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}
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modpath := f.Module.Mod.Path
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log_info.Print("parsed modfile")
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log_info.Printf("module path in modfile: %s", modpath)
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log_info.Printf("module major version in modfile: %s", f.Module.Mod.Version)
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log_info.Printf("target release version: %s", version)
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// major version compatibility check
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if err := module.Check(modpath, version); err != nil {
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shutdown(err)
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}
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// default to basename@version.zip
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if outputPath == "" {
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outputPath = fmt.Sprintf("%s@%s.zip", modbasename(modpath), version)
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}
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log_info.Printf("destination: %s", outputPath)
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switch _, err := os.Stat(outputPath); {
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case err == nil:
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bail(1, "a file at %q already exists", outputPath)
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case os.IsNotExist(err):
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break
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default:
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bail(1, "unable to check for file at %q: %v", outputPath, err)
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}
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zf, err := os.OpenFile(outputPath, os.O_CREATE|os.O_EXCL|os.O_WRONLY, 0644)
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if err != nil {
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bail(1, "output file not opened: %v", err)
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}
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mv := module.Version{Path: modpath, Version: version}
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if err := zip.CreateFromDir(zf, mv, pkgdir); err != nil {
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bail(1, "zip not created: %v", err)
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}
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}
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