actions-runner/config/config.go

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// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package config
import (
"encoding/json"
"io"
"os"
"runtime"
"strconv"
"gitea.com/gitea/act_runner/core"
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"github.com/joho/godotenv"
"github.com/kelseyhightower/envconfig"
)
type (
// Config provides the system configuration.
Config struct {
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Debug bool `envconfig:"GITEA_DEBUG"`
Trace bool `envconfig:"GITEA_TRACE"`
Client Client
Runner Runner
Platform Platform
}
Client struct {
Address string `ignored:"true"`
Insecure bool
}
Runner struct {
UUID string `ignored:"true"`
Name string `envconfig:"GITEA_RUNNER_NAME"`
Token string `ignored:"true"`
Capacity int `envconfig:"GITEA_RUNNER_CAPACITY" default:"1"`
File string `envconfig:"GITEA_RUNNER_FILE" default:".runner"`
Environ map[string]string `envconfig:"GITEA_RUNNER_ENVIRON"`
EnvFile string `envconfig:"GITEA_RUNNER_ENV_FILE"`
Labels []string `envconfig:"GITEA_RUNNER_LABELS"`
}
Platform struct {
OS string `envconfig:"GITEA_PLATFORM_OS"`
Arch string `envconfig:"GITEA_PLATFORM_ARCH"`
}
)
// FromEnviron returns the settings from the environment.
func FromEnviron() (Config, error) {
cfg := Config{}
if err := envconfig.Process("", &cfg); err != nil {
return cfg, err
}
// check runner config exist
f, err := os.Stat(cfg.Runner.File)
if err == nil && !f.IsDir() {
jsonFile, _ := os.Open(cfg.Runner.File)
defer jsonFile.Close()
byteValue, _ := io.ReadAll(jsonFile)
var runner core.Runner
if err := json.Unmarshal(byteValue, &runner); err != nil {
return cfg, err
}
if runner.UUID != "" {
cfg.Runner.UUID = runner.UUID
}
if runner.Name != "" {
cfg.Runner.Name = runner.Name
}
if runner.Token != "" {
cfg.Runner.Token = runner.Token
}
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if len(runner.Labels) != 0 {
cfg.Runner.Labels = runner.Labels
}
if runner.Address != "" {
cfg.Client.Address = runner.Address
}
if runner.Insecure != "" {
cfg.Client.Insecure, _ = strconv.ParseBool(runner.Insecure)
}
} else if err != nil {
return cfg, err
}
// runner config
if cfg.Runner.Environ == nil {
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cfg.Runner.Environ = map[string]string{
"GITHUB_API_URL": cfg.Client.Address + "/api/v1",
"GITHUB_SERVER_URL": cfg.Client.Address,
}
}
if cfg.Runner.Name == "" {
cfg.Runner.Name, _ = os.Hostname()
}
// platform config
if cfg.Platform.OS == "" {
cfg.Platform.OS = runtime.GOOS
}
if cfg.Platform.Arch == "" {
cfg.Platform.Arch = runtime.GOARCH
}
if file := cfg.Runner.EnvFile; file != "" {
envs, err := godotenv.Read(file)
if err != nil {
return cfg, err
}
for k, v := range envs {
cfg.Runner.Environ[k] = v
}
}
return cfg, nil
}