mirror of
https://github.com/token2/snapd.git
synced 2026-03-13 11:15:47 -07:00
82 lines
2.3 KiB
Go
82 lines
2.3 KiB
Go
// -*- Mode: Go; indent-tabs-mode: t -*-
|
|
|
|
/*
|
|
* Copyright (C) 2016-2017 Canonical Ltd
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 3 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
package snap
|
|
|
|
import (
|
|
"fmt"
|
|
"io/ioutil"
|
|
|
|
"github.com/snapcore/snapd/osutil"
|
|
)
|
|
|
|
// addImplicitHooks adds hooks from the installed snap's hookdir to the snap info.
|
|
//
|
|
// Existing hooks (i.e. ones defined in the YAML) are not changed; only missing
|
|
// hooks are added.
|
|
func addImplicitHooks(snapInfo *Info) error {
|
|
// First of all, check to ensure the hooks directory exists. If it doesn't,
|
|
// it's not an error-- there's just nothing to do.
|
|
hooksDir := snapInfo.HooksDir()
|
|
if !osutil.IsDirectory(hooksDir) {
|
|
return nil
|
|
}
|
|
|
|
fileInfos, err := ioutil.ReadDir(hooksDir)
|
|
if err != nil {
|
|
return fmt.Errorf("unable to read hooks directory: %s", err)
|
|
}
|
|
|
|
for _, fileInfo := range fileInfos {
|
|
addHookIfValid(snapInfo, fileInfo.Name())
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// addImplicitHooksFromContainer adds hooks from the snap file's hookdir to the snap info.
|
|
//
|
|
// Existing hooks (i.e. ones defined in the YAML) are not changed; only missing
|
|
// hooks are added.
|
|
func addImplicitHooksFromContainer(snapInfo *Info, snapf Container) {
|
|
// Read the hooks directory. If this fails we assume the hooks directory
|
|
// doesn't exist, which means there are no implicit hooks to load (not an
|
|
// error).
|
|
fileNames, err := snapf.ListDir("meta/hooks")
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
for _, fileName := range fileNames {
|
|
addHookIfValid(snapInfo, fileName)
|
|
}
|
|
}
|
|
|
|
func addHookIfValid(snapInfo *Info, hookName string) {
|
|
// Verify that the hook name is actually supported. If not, ignore it.
|
|
if !IsHookSupported(hookName) {
|
|
return
|
|
}
|
|
|
|
// Don't overwrite a hook that has already been loaded from the YAML
|
|
if _, ok := snapInfo.Hooks[hookName]; !ok {
|
|
snapInfo.Hooks[hookName] = &HookInfo{Snap: snapInfo, Name: hookName}
|
|
}
|
|
}
|