forgejo/modules/setting/path.go
Loïc Dachary be523c63db
[BRANDING] alias {FORGEJO,GITEA}_{CUSTOM,WORK_DIR}
FORGEJO_* environment variables are set to the corresponding GITEA_*
variable when the cli starts. This approach is intended to minimize
the conflicts on rebase. All occurences of GITEA_* are left untouched
in the codebase and they are only changed to FORGEJO_* if exposed to
the user.

(cherry picked from commit e466f9d10e)
(cherry picked from commit e33e95931b)
(cherry picked from commit 2cfc6519b7)
(cherry picked from commit af8864373a)
(cherry picked from commit a0550ff339)
(cherry picked from commit 24dc0a5191)
(cherry picked from commit e255eea2b4)
(cherry picked from commit 0c4f5afa7a)
(cherry picked from commit 42fce708d0)
(cherry picked from commit e7278c3c22)
(cherry picked from commit 0fb9ed7e0e)
(cherry picked from commit a98308aa4d)
(cherry picked from commit b8695fcbe0)
(cherry picked from commit 4aee8719f5)
(cherry picked from commit 1c503c1ba7)
(cherry picked from commit cf1ed8551e)
(cherry picked from commit c52459b088)
(cherry picked from commit 92cac277b2)
(cherry picked from commit 2c744f1118)
(cherry picked from commit 989a98a8c5)
(cherry picked from commit 9cf7052bd4)
(cherry picked from commit a13c9667e0)

Conflicts:
	main.go
	https://codeberg.org/forgejo/forgejo/pulls/1216
(cherry picked from commit a9c3cf060d)
(cherry picked from commit eb6d904b23)
(cherry picked from commit fd4878e487)
(cherry picked from commit cc2cab9241)
2023-09-04 11:14:58 +02:00

215 lines
6 KiB
Go

// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package setting
import (
"errors"
"os"
"os/exec"
"path/filepath"
"strings"
"code.gitea.io/gitea/modules/log"
)
var (
// AppPath represents the path to the gitea binary
AppPath string
// AppWorkPath is the "working directory" of Gitea. It maps to the: WORK_PATH in app.ini, "--work-path" flag, environment variable GITEA_WORK_DIR.
// If that is not set it is the default set here by the linker or failing that the directory of AppPath.
// It is used as the base path for several other paths.
AppWorkPath string
CustomPath string // Custom directory path. Env: GITEA_CUSTOM
CustomConf string
appWorkPathBuiltin string
customPathBuiltin string
customConfBuiltin string
AppWorkPathMismatch bool
)
func getAppPath() (string, error) {
var appPath string
var err error
if IsWindows && filepath.IsAbs(os.Args[0]) {
appPath = filepath.Clean(os.Args[0])
} else {
appPath, err = exec.LookPath(os.Args[0])
}
if err != nil {
if !errors.Is(err, exec.ErrDot) {
return "", err
}
appPath, err = filepath.Abs(os.Args[0])
}
if err != nil {
return "", err
}
appPath, err = filepath.Abs(appPath)
if err != nil {
return "", err
}
// Note: (legacy code) we don't use path.Dir here because it does not handle case which path starts with two "/" in Windows: "//psf/Home/..."
return strings.ReplaceAll(appPath, "\\", "/"), err
}
func init() {
var err error
if AppPath, err = getAppPath(); err != nil {
log.Fatal("Failed to get app path: %v", err)
}
if AppWorkPath == "" {
AppWorkPath = filepath.Dir(AppPath)
}
appWorkPathBuiltin = AppWorkPath
customPathBuiltin = CustomPath
customConfBuiltin = CustomConf
}
type ArgWorkPathAndCustomConf struct {
WorkPath string
CustomPath string
CustomConf string
}
type stringWithDefault struct {
Value string
IsSet bool
}
func (s *stringWithDefault) Set(v string) {
s.Value = v
s.IsSet = true
}
// InitWorkPathAndCommonConfig will set AppWorkPath, CustomPath and CustomConf, init default config provider by CustomConf and load common settings,
func InitWorkPathAndCommonConfig(getEnvFn func(name string) string, args ArgWorkPathAndCustomConf) {
InitWorkPathAndCfgProvider(getEnvFn, args)
LoadCommonSettings()
}
// InitWorkPathAndCfgProvider will set AppWorkPath, CustomPath and CustomConf, init default config provider by CustomConf
func InitWorkPathAndCfgProvider(getEnvFn func(name string) string, args ArgWorkPathAndCustomConf) {
tryAbsPath := func(paths ...string) string {
s := paths[len(paths)-1]
for i := len(paths) - 2; i >= 0; i-- {
if filepath.IsAbs(s) {
break
}
s = filepath.Join(paths[i], s)
}
return s
}
var err error
tmpWorkPath := stringWithDefault{Value: appWorkPathBuiltin}
if tmpWorkPath.Value == "" {
tmpWorkPath.Value = filepath.Dir(AppPath)
}
tmpCustomPath := stringWithDefault{Value: customPathBuiltin}
if tmpCustomPath.Value == "" {
tmpCustomPath.Value = "custom"
}
tmpCustomConf := stringWithDefault{Value: customConfBuiltin}
if tmpCustomConf.Value == "" {
tmpCustomConf.Value = "conf/app.ini"
}
readFromEnv := func() {
envWorkPath := getEnvFn("GITEA_WORK_DIR")
if envWorkPath != "" {
tmpWorkPath.Set(envWorkPath)
if !filepath.IsAbs(tmpWorkPath.Value) {
log.Fatal("GITEA_WORK_DIR (work path) must be absolute path")
}
}
envWorkPath = getEnvFn("FORGEJO_WORK_DIR")
if envWorkPath != "" {
tmpWorkPath.Set(envWorkPath)
if !filepath.IsAbs(tmpWorkPath.Value) {
log.Fatal("FORGEJO_WORK_DIR (work path) must be absolute path")
}
}
envCustomPath := getEnvFn("GITEA_CUSTOM")
if envCustomPath != "" {
tmpCustomPath.Set(envCustomPath)
if !filepath.IsAbs(tmpCustomPath.Value) {
log.Fatal("GITEA_CUSTOM (custom path) must be absolute path")
}
}
envCustomPath = getEnvFn("FORGEJO_CUSTOM")
if envCustomPath != "" {
tmpCustomPath.Set(envCustomPath)
if !filepath.IsAbs(tmpCustomPath.Value) {
log.Fatal("FORGEJO_CUSTOM (custom path) must be absolute path")
}
}
}
readFromArgs := func() {
if args.WorkPath != "" {
tmpWorkPath.Set(args.WorkPath)
if !filepath.IsAbs(tmpWorkPath.Value) {
log.Fatal("--work-path must be absolute path")
}
}
if args.CustomPath != "" {
tmpCustomPath.Set(args.CustomPath) // if it is not abs, it will be based on work-path, it shouldn't happen
if !filepath.IsAbs(tmpCustomPath.Value) {
log.Error("--custom-path must be absolute path")
}
}
if args.CustomConf != "" {
tmpCustomConf.Set(args.CustomConf)
if !filepath.IsAbs(tmpCustomConf.Value) {
// the config path can be relative to the real current working path
if tmpCustomConf.Value, err = filepath.Abs(tmpCustomConf.Value); err != nil {
log.Fatal("Failed to get absolute path of config %q: %v", tmpCustomConf.Value, err)
}
}
}
}
readFromEnv()
readFromArgs()
if !tmpCustomConf.IsSet {
tmpCustomConf.Set(tryAbsPath(tmpWorkPath.Value, tmpCustomPath.Value, tmpCustomConf.Value))
}
// only read the config but do not load/init anything more, because the AppWorkPath and CustomPath are not ready
InitCfgProvider(tmpCustomConf.Value)
if HasInstallLock(CfgProvider) {
ClearEnvConfigKeys() // if the instance has been installed, do not pass the environment variables to sub-processes
}
configWorkPath := ConfigSectionKeyString(CfgProvider.Section(""), "WORK_PATH")
if configWorkPath != "" {
if !filepath.IsAbs(configWorkPath) {
log.Fatal("WORK_PATH in %q must be absolute path", configWorkPath)
}
configWorkPath = filepath.Clean(configWorkPath)
if tmpWorkPath.Value != "" && (getEnvFn("GITEA_WORK_DIR") != "" || getEnvFn("FORGEJO_WORK_DIR") != "" || args.WorkPath != "") {
fi1, err1 := os.Stat(tmpWorkPath.Value)
fi2, err2 := os.Stat(configWorkPath)
if err1 != nil || err2 != nil || !os.SameFile(fi1, fi2) {
AppWorkPathMismatch = true
}
}
tmpWorkPath.Set(configWorkPath)
}
tmpCustomPath.Set(tryAbsPath(tmpWorkPath.Value, tmpCustomPath.Value))
AppWorkPath = tmpWorkPath.Value
CustomPath = tmpCustomPath.Value
CustomConf = tmpCustomConf.Value
}