[BRANDING] parse FORGEJO__* in the container environment

(cherry picked from commit b075991747)
(cherry picked from commit da3f76228e)
(cherry picked from commit 20d196e74f)
(cherry picked from commit 0bf8b1824e)
(cherry picked from commit 655bb770a7)
(cherry picked from commit d69d5c2c46)
(cherry picked from commit 00b55e5a53)
(cherry picked from commit 456121fd8a)

contrib/environment-to-ini/environment-to-ini.go

@@ -16,15 +16,15 @@ func main() {
 	app := cli.NewApp()
 	app.Name = "environment-to-ini"
 	app.Usage = "Use provided environment to update configuration ini"
-	app.Description = `As a helper to allow docker users to update the gitea configuration
+	app.Description = `As a helper to allow docker users to update the forgejo configuration
 	through the environment, this command allows environment variables to
 	be mapped to values in the ini.
 
-	Environment variables of the form "GITEA__SECTION_NAME__KEY_NAME"
+	Environment variables of the form "FORGEJO__SECTION_NAME__KEY_NAME"
 	will be mapped to the ini section "[section_name]" and the key
 	"KEY_NAME" with the value as provided.
 
-	Environment variables of the form "GITEA__SECTION_NAME__KEY_NAME__FILE"
+	Environment variables of the form "FORGEJO__SECTION_NAME__KEY_NAME__FILE"
 	will be mapped to the ini section "[section_name]" and the key
 	"KEY_NAME" with the value loaded from the specified file.
 
@@ -42,8 +42,8 @@ func main() {
 		...
 		"""
 
-	You would set the environment variables: "GITEA__LOG_0x2E_CONSOLE__COLORIZE=false"
-	and "GITEA__LOG_0x2E_CONSOLE__STDERR=false". Other examples can be found
+	You would set the environment variables: "FORGEJO__LOG_0x2E_CONSOLE__COLORIZE=false"
+	and "FORGEJO__LOG_0x2E_CONSOLE__STDERR=false". Other examples can be found
 	on the configuration cheat sheet.`
 	app.Flags = []cli.Flag{
 		&cli.StringFlag{
@@ -59,7 +59,7 @@ func main() {
 		&cli.StringFlag{
 			Name:  "work-path, w",
 			Value: setting.AppWorkPath,
-			Usage: "Set the gitea working path",
+			Usage: "Set the forgejo working path",
 		},
 		&cli.StringFlag{
 			Name:  "out, o",

modules/setting/config_env.go

@@ -14,7 +14,7 @@ import (
 )
 
 const (
-	EnvConfigKeyPrefixGitea = "GITEA__"
+	EnvConfigKeyPrefixGitea = "^(FORGEJO|GITEA)__"
 	EnvConfigKeySuffixFile  = "__FILE"
 )
 
@@ -97,19 +97,21 @@ func decodeEnvSectionKey(encoded string) (ok bool, section, key string) {
 
 // decodeEnvironmentKey decode the environment key to section and key
 // The environment key is in the form of GITEA__SECTION__KEY or GITEA__SECTION__KEY__FILE
-func decodeEnvironmentKey(prefixGitea, suffixFile, envKey string) (ok bool, section, key string, useFileValue bool) {
-	if !strings.HasPrefix(envKey, prefixGitea) {
-		return false, "", "", false
-	}
+func decodeEnvironmentKey(prefixRegexp *regexp.Regexp, suffixFile, envKey string) (ok bool, section, key string, useFileValue bool) {
 	if strings.HasSuffix(envKey, suffixFile) {
 		useFileValue = true
 		envKey = envKey[:len(envKey)-len(suffixFile)]
 	}
-	ok, section, key = decodeEnvSectionKey(envKey[len(prefixGitea):])
+	loc := prefixRegexp.FindStringIndex(envKey)
+	if loc == nil {
+		return false, "", "", false
+	}
+	ok, section, key = decodeEnvSectionKey(envKey[loc[1]:])
 	return ok, section, key, useFileValue
 }
 
 func EnvironmentToConfig(cfg ConfigProvider, envs []string) (changed bool) {
+	prefixRegexp := regexp.MustCompile(EnvConfigKeyPrefixGitea)
 	for _, kv := range envs {
 		idx := strings.IndexByte(kv, '=')
 		if idx < 0 {
@@ -119,7 +121,7 @@ func EnvironmentToConfig(cfg ConfigProvider, envs []string) (changed bool) {
 		// parse the environment variable to config section name and key name
 		envKey := kv[:idx]
 		envValue := kv[idx+1:]
-		ok, sectionName, keyName, useFileValue := decodeEnvironmentKey(EnvConfigKeyPrefixGitea, EnvConfigKeySuffixFile, envKey)
+		ok, sectionName, keyName, useFileValue := decodeEnvironmentKey(prefixRegexp, EnvConfigKeySuffixFile, envKey)
 		if !ok {
 			continue
 		}

modules/setting/config_env_test.go

@@ -5,6 +5,7 @@ package setting
 
 import (
 	"os"
+	"regexp"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -33,7 +34,7 @@ func TestDecodeEnvSectionKey(t *testing.T) {
 }
 
 func TestDecodeEnvironmentKey(t *testing.T) {
-	prefix := "GITEA__"
+	prefix := regexp.MustCompile(EnvConfigKeyPrefixGitea)
 	suffix := "__FILE"
 
 	ok, section, key, file := decodeEnvironmentKey(prefix, suffix, "SEC__KEY")
@@ -60,6 +61,12 @@ func TestDecodeEnvironmentKey(t *testing.T) {
 	assert.Equal(t, "KEY", key)
 	assert.False(t, file)
 
+	ok, section, key, file = decodeEnvironmentKey(prefix, suffix, "FORGEJO__SEC__KEY")
+	assert.True(t, ok)
+	assert.Equal(t, "sec", section)
+	assert.Equal(t, "KEY", key)
+	assert.False(t, file)
+
 	// with "__FILE" suffix, it doesn't support to write "[sec].FILE" to config (no such key FILE is used in Gitea)
 	// but it could be fixed in the future by adding a new suffix like "__VALUE" (no such key VALUE is used in Gitea either)
 	ok, section, key, file = decodeEnvironmentKey(prefix, suffix, "GITEA__SEC__FILE")