| // Copyright 2017 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| // The relnote command works with release notes. |
| // It can be used to look for unfinished notes and to generate the |
| // final markdown file. |
| package main |
| |
| import ( |
| "flag" |
| "fmt" |
| "log" |
| "os" |
| "path/filepath" |
| "regexp" |
| "runtime" |
| "time" |
| ) |
| |
| var ( |
| verbose = flag.Bool("v", false, "print verbose logging") |
| goroot = flag.String("goroot", runtime.GOROOT(), "root of Go repo containing docs") |
| ) |
| |
| func usage() { |
| out := flag.CommandLine.Output() |
| fmt.Fprintf(out, "usage:\n") |
| fmt.Fprintf(out, " relnote generate\n") |
| fmt.Fprintf(out, " generate release notes from doc/next\n") |
| fmt.Fprintf(out, " relnote todo PREVIOUS_RELEASE_DATE\n") |
| fmt.Fprintf(out, " report which release notes need to be written; use YYYY-MM-DD format for date of last release\n") |
| flag.PrintDefaults() |
| } |
| |
| func main() { |
| log.SetPrefix("relnote: ") |
| log.SetFlags(0) |
| flag.Usage = usage |
| flag.Parse() |
| |
| // Read internal/goversion to find the next release. |
| data, err := os.ReadFile(filepath.Join(*goroot, "src/internal/goversion/goversion.go")) |
| if err != nil { |
| log.Fatal(err) |
| } |
| m := regexp.MustCompile(`Version = (\d+)`).FindStringSubmatch(string(data)) |
| if m == nil { |
| log.Fatalf("cannot find Version in src/internal/goversion/goversion.go") |
| } |
| version := m[1] |
| |
| // Dispatch to a subcommand if one is provided. |
| if cmd := flag.Arg(0); cmd != "" { |
| switch cmd { |
| case "generate": |
| err = generate(version, flag.Arg(1)) |
| case "todo": |
| prevDate := flag.Arg(1) |
| if prevDate == "" { |
| log.Fatal("need previous release date") |
| } |
| prevDateTime, err := time.Parse("2006-01-02", prevDate) |
| if err != nil { |
| log.Fatalf("previous release date: %s", err) |
| } |
| nextDir := filepath.Join(*goroot, "doc", "next") |
| err = todo(os.Stdout, os.DirFS(nextDir), prevDateTime) |
| default: |
| err = fmt.Errorf("unknown command %q", cmd) |
| } |
| if err != nil { |
| log.Fatal(err) |
| } |
| } else { |
| usage() |
| log.Fatal("missing subcommand") |
| } |
| } |