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forgejo/contrib/environment-to-ini/environment-to-ini.go
Earl Warren fe9659a579
[BRANDING] parse FORGEJO__* in the container environment
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Conflicts:
	contrib/environment-to-ini/environment-to-ini.go
	https://codeberg.org/forgejo/forgejo/pulls/1769
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2024-02-05 16:05:02 +01:00

111 lines
3.1 KiB
Go

// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package main
import (
"os"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"github.com/urfave/cli/v2"
)
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 forgejo configuration
through the environment, this command allows environment variables to
be mapped to values in the ini.
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 "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.
Environment variables are usually restricted to a reduced character
set "0-9A-Z_" - in order to allow the setting of sections with
characters outside of that set, they should be escaped as following:
"_0X2E_" for ".". The entire section and key names can be escaped as
a UTF8 byte string if necessary. E.g. to configure:
"""
...
[log.console]
COLORIZE=false
STDERR=true
...
"""
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{
Name: "custom-path",
Aliases: []string{"C"},
Value: setting.CustomPath,
Usage: "Custom path file path",
},
&cli.StringFlag{
Name: "config",
Aliases: []string{"c"},
Value: setting.CustomConf,
Usage: "Custom configuration file path",
},
&cli.StringFlag{
Name: "work-path",
Aliases: []string{"w"},
Value: setting.AppWorkPath,
Usage: "Set the forgejo working path",
},
&cli.StringFlag{
Name: "out",
Aliases: []string{"o"},
Value: "",
Usage: "Destination file to write to",
},
}
app.Action = runEnvironmentToIni
err := app.Run(os.Args)
if err != nil {
log.Fatal("Failed to run app with %s: %v", os.Args, err)
}
}
func runEnvironmentToIni(c *cli.Context) error {
// the config system may change the environment variables, so get a copy first, to be used later
env := append([]string{}, os.Environ()...)
setting.InitWorkPathAndCfgProvider(os.Getenv, setting.ArgWorkPathAndCustomConf{
WorkPath: c.String("work-path"),
CustomPath: c.String("custom-path"),
CustomConf: c.String("config"),
})
cfg, err := setting.NewConfigProviderFromFile(setting.CustomConf)
if err != nil {
log.Fatal("Failed to load custom conf '%s': %v", setting.CustomConf, err)
}
changed := setting.EnvironmentToConfig(cfg, env)
// try to save the config file
destination := c.String("out")
if len(destination) == 0 {
destination = setting.CustomConf
}
if destination != setting.CustomConf || changed {
log.Info("Settings saved to: %q", destination)
err = cfg.SaveTo(destination)
if err != nil {
return err
}
}
return nil
}