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gitea/modules/git/hooks.go
Adam Strzelecki 3df5dcc1dc Allow pre-receive hook customization
This hook can be used for example to reject too large commits and it is
executed before "update" hook, used exclusively by Gogs to update its state.

https://git-scm.com/book/en/v2/Customizing-Git-Git-Hooks
2015-12-08 01:28:32 +01:00

125 lines
2.6 KiB
Go

// Copyright 2014 The Gogs Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package git
import (
"errors"
"io/ioutil"
"os"
"path"
"strings"
"github.com/Unknwon/com"
)
// hookNames is a list of Git hooks' name that are supported.
var hookNames = []string{
"applypatch-msg",
"pre-applypatch",
"post-applypatch",
"pre-commit",
"prepare-commit-msg",
"commit-msg",
"post-commit",
"pre-rebase",
"post-checkout",
"post-merge",
"pre-push",
"pre-receive",
// "update",
"post-receive",
"post-update",
"push-to-checkout",
"pre-auto-gc",
"post-rewrite",
}
var (
ErrNotValidHook = errors.New("not a valid Git hook")
)
// IsValidHookName returns true if given name is a valid Git hook.
func IsValidHookName(name string) bool {
for _, hn := range hookNames {
if hn == name {
return true
}
}
return false
}
// Hook represents a Git hook.
type Hook struct {
name string
IsActive bool // Indicates whether repository has this hook.
Content string // Content of hook if it's active.
Sample string // Sample content from Git.
path string // Hook file path.
}
// GetHook returns a Git hook by given name and repository.
func GetHook(repoPath, name string) (*Hook, error) {
if !IsValidHookName(name) {
return nil, ErrNotValidHook
}
h := &Hook{
name: name,
path: path.Join(repoPath, "hooks", name),
}
if isFile(h.path) {
data, err := ioutil.ReadFile(h.path)
if err != nil {
return nil, err
}
h.IsActive = true
h.Content = string(data)
} else if isFile(h.path + ".sample") {
data, err := ioutil.ReadFile(h.path + ".sample")
if err != nil {
return nil, err
}
h.Sample = string(data)
}
return h, nil
}
func (h *Hook) Name() string {
return h.name
}
// Update updates hook settings.
func (h *Hook) Update() error {
if len(strings.TrimSpace(h.Content)) == 0 {
if com.IsExist(h.path) {
return os.Remove(h.path)
}
return nil
}
return ioutil.WriteFile(h.path, []byte(strings.Replace(h.Content, "\r", "", -1)), os.ModePerm)
}
// ListHooks returns a list of Git hooks of given repository.
func ListHooks(repoPath string) (_ []*Hook, err error) {
if !isDir(path.Join(repoPath, "hooks")) {
return nil, errors.New("hooks path does not exist")
}
hooks := make([]*Hook, len(hookNames))
for i, name := range hookNames {
hooks[i], err = GetHook(repoPath, name)
if err != nil {
return nil, err
}
}
return hooks, nil
}
func (repo *Repository) GetHook(name string) (*Hook, error) {
return GetHook(repo.Path, name)
}
func (repo *Repository) Hooks() ([]*Hook, error) {
return ListHooks(repo.Path)
}