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// Copyright (c) Tailscale Inc & contributors
// SPDX-License-Identifier: BSD-3-Clause
// The git-hook command is Tailscale's git hook binary, built and
// installed under .git/hooks/ts-git-hook-bin by the launcher at
// .git/hooks/ts-git-hook. misc/install-git-hooks.go writes the initial
// launcher; subsequent HOOK_VERSION bumps trigger self-rebuilds.
//
// # Adding your own hooks
//
// To add your own hook alongside one we already hook, create an executable
// file .git/hooks/<hook-name>.local (e.g. pre-commit.local). It runs after
// the built-in hook succeeds.
package main
import (
"fmt"
"log"
"os"
"strings"
"tailscale.com/misc/git_hook/githook"
)
var pushRemotes = []string{
"git@github.com:tailscale/tailscale",
"git@github.com:tailscale/tailscale.git",
"https://github.com/tailscale/tailscale",
"https://github.com/tailscale/tailscale.git",
}
// hooks are the hook names this binary handles. Used by install to
// write per-hook wrappers; must stay in sync with the dispatcher below.
var hooks = []string{"pre-commit", "commit-msg", "pre-push"}
func main() {
log.SetFlags(0)
if len(os.Args) < 2 {
return
}
cmd, args := os.Args[1], os.Args[2:]
var err error
switch cmd {
case "version":
fmt.Print(strings.TrimSpace(githook.HookVersion) + ":0")
case "install":
err = githook.WriteHooks(hooks)
case "pre-commit":
err = githook.CheckForbiddenMarkers()
case "commit-msg":
err = githook.AddChangeID(args)
case "pre-push":
err = githook.CheckGoModReplaces(args, pushRemotes, nil)
}
if err != nil {
log.Fatalf("git-hook: %v: %v", cmd, err)
}
if err := githook.RunLocalHook(cmd, args); err != nil {
log.Fatalf("git-hook: %v", err)
}
}
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