Files
simplegit/common/hooks.go
T
2026-07-29 06:51:43 -04:00

78 lines
2.4 KiB
Go

package common
import (
"fmt"
"io/fs"
"os"
"path/filepath"
"strings"
)
var gitHookNames = []string{
"pre-receive", "update", "post-receive", "post-update", "proc-receive",
"push-to-checkout", "reference-transaction", "pre-applypatch",
"post-applypatch", "pre-commit", "pre-merge-commit", "prepare-commit-msg",
"commit-msg", "post-commit", "pre-rebase", "post-checkout", "post-merge",
"pre-push", "pre-auto-gc", "post-rewrite", "sendemail-validate",
"fsmonitor-watchman", "p4-pre-submit", "p4-post-changelist",
"p4-prepare-changelist", "p4-changelist",
}
const hookWrapper = `#!/bin/sh
# Generated by simplegit. The operator controls hook behavior with -hook-script.
test -n "$SIMPLEGIT_HOOK_SCRIPT" || exit 0
repo_dir=$(pwd -P)
repo=${repo_dir#"$SIMPLEGIT_REPO_ROOT"/}
repo=${repo%%.git}
exec "$SIMPLEGIT_HOOK_SCRIPT" %s "$repo" "$@"
`
// EnsureHookTemplate creates the git-init template used for new repositories.
// All hook entrypoints delegate to one environment-specific external script.
func EnsureHookTemplate(root string) (string, error) {
dir := filepath.Join(root, "template")
hooksDir := filepath.Join(dir, "hooks")
if err := os.MkdirAll(hooksDir, 0o755); err != nil {
return "", fmt.Errorf("create hook template: %w", err)
}
for _, name := range gitHookNames {
path := filepath.Join(hooksDir, name)
if err := os.WriteFile(path, []byte(fmt.Sprintf(hookWrapper, name)), 0o755); err != nil {
return "", fmt.Errorf("write hook %s: %w", name, err)
}
}
if err := refreshRepositoryHooks(filepath.Join(root, "repos"), hooksDir); err != nil {
return "", err
}
return dir, nil
}
// refreshRepositoryHooks updates repositories created with an older template.
func refreshRepositoryHooks(reposRoot, templateHooks string) error {
if _, err := os.Stat(reposRoot); os.IsNotExist(err) {
return nil
}
return filepath.WalkDir(reposRoot, func(path string, entry fs.DirEntry, err error) error {
if err != nil {
return err
}
if !entry.IsDir() || !strings.HasSuffix(entry.Name(), ".git") {
return nil
}
dst := filepath.Join(path, "hooks")
if err := os.MkdirAll(dst, 0o755); err != nil {
return err
}
for _, name := range gitHookNames {
body, err := os.ReadFile(filepath.Join(templateHooks, name))
if err != nil {
return err
}
if err := os.WriteFile(filepath.Join(dst, name), body, 0o755); err != nil {
return err
}
}
return filepath.SkipDir
})
}