backport of PR #1257 for release/v1.1: rewrite pre-commit, post-commit and options hooks (#1376)

* issue #1250, replace {pre,post}-receive and update hooks with a single shell script that does not require custom hooks to be a sh-script

* issue #1250, make script posix compilant

* v23, add migration script to update {pre,post}-receive and update hooks

* migration: use a more common name and rename v23 to v26 to avoid conflicts

* gofmt'ed and added copyright header

* fix SyncRepositoryHooks to also sync wiki repos

* no migration for you.

models/repo.go

@@ -845,11 +845,7 @@ func cleanUpMigrateGitConfig(configPath string) error {
 func createDelegateHooks(repoPath string) (err error) {
 	var (
 		hookNames = []string{"pre-receive", "update", "post-receive"}
-		hookTpls  = []string{
-			fmt.Sprintf("#!/usr/bin/env %s\nORI_DIR=`pwd`\nSHELL_FOLDER=$(cd \"$(dirname \"$0\")\";pwd)\ncd \"$ORI_DIR\"\nfor i in `ls \"$SHELL_FOLDER/pre-receive.d\"`; do\n    sh \"$SHELL_FOLDER/pre-receive.d/$i\"\ndone", setting.ScriptType),
-			fmt.Sprintf("#!/usr/bin/env %s\nORI_DIR=`pwd`\nSHELL_FOLDER=$(cd \"$(dirname \"$0\")\";pwd)\ncd \"$ORI_DIR\"\nfor i in `ls \"$SHELL_FOLDER/update.d\"`; do\n    sh \"$SHELL_FOLDER/update.d/$i\" $1 $2 $3\ndone", setting.ScriptType),
-			fmt.Sprintf("#!/usr/bin/env %s\nORI_DIR=`pwd`\nSHELL_FOLDER=$(cd \"$(dirname \"$0\")\";pwd)\ncd \"$ORI_DIR\"\nfor i in `ls \"$SHELL_FOLDER/post-receive.d\"`; do\n    sh \"$SHELL_FOLDER/post-receive.d/$i\"\ndone", setting.ScriptType),
-		}
+		hookTpl = fmt.Sprintf("#!/usr/bin/env %s\ndata=$(cat)\nexitcodes=\"\"\nhookname=$(basename $0)\nGIT_DIR=${GIT_DIR:-$(dirname $0)}\n\nfor hook in ${GIT_DIR}/hooks/${hookname}.d/*; do\ntest -x \"${hook}\" || continue\necho \"${data}\" | \"${hook}\"\nexitcodes=\"${exitcodes} $?\"\ndone\n\nfor i in ${exitcodes}; do\n[ ${i} -eq 0 ] || exit ${i}\ndone\n", setting.ScriptType)
 		giteaHookTpls = []string{
 			fmt.Sprintf("#!/usr/bin/env %s\n\"%s\" hook --config='%s' pre-receive\n", setting.ScriptType, setting.AppPath, setting.CustomConf),
 			fmt.Sprintf("#!/usr/bin/env %s\n\"%s\" hook --config='%s' update $1 $2 $3\n", setting.ScriptType, setting.AppPath, setting.CustomConf),
@@ -868,7 +864,7 @@ func createDelegateHooks(repoPath string) (err error) {
 		}
 
 		// WARNING: This will override all old server-side hooks
-		if err = ioutil.WriteFile(oldHookPath, []byte(hookTpls[i]), 0777); err != nil {
+		if err = ioutil.WriteFile(oldHookPath, []byte(hookTpl), 0777); err != nil {
 			return fmt.Errorf("write old hook file '%s': %v", oldHookPath, err)
 		}
 
@@ -1909,6 +1905,11 @@ func SyncRepositoryHooks() error {
 			if err := createDelegateHooks(bean.(*Repository).RepoPath()); err != nil {
 				return fmt.Errorf("SyncRepositoryHook: %v", err)
 			}
+			if bean.(*Repository).HasWiki() {
+				if err := createDelegateHooks(bean.(*Repository).WikiPath()); err != nil {
+					return fmt.Errorf("SyncRepositoryHook: %v", err)
+				}
+			}
 			return nil
 		})
 }