95 lines
2.0 KiB
Go
95 lines
2.0 KiB
Go
package main
|
|
|
|
import (
|
|
"encoding/json"
|
|
"errors"
|
|
"fmt"
|
|
"io/ioutil"
|
|
"os"
|
|
"path/filepath"
|
|
|
|
"github.com/haunt98/copy-go"
|
|
)
|
|
|
|
type Config struct {
|
|
// Read when run
|
|
Path string `json:"-"`
|
|
|
|
// Read from file
|
|
Apps map[string]App `json:"apps"`
|
|
}
|
|
|
|
type App struct {
|
|
Files []Path `json:"files"`
|
|
Dirs []Path `json:"dirs"`
|
|
}
|
|
|
|
type Path struct {
|
|
Internal string `json:"internal"`
|
|
External string `json:"external"`
|
|
}
|
|
|
|
// Load config from file
|
|
func LoadConfig(path string) (result Config, err error) {
|
|
configPath := getConfigPath(path)
|
|
f, err := os.Open(configPath)
|
|
if err != nil {
|
|
// https://github.com/golang/go/blob/3e1e13ce6d1271f49f3d8ee359689145a6995bad/src/os/error.go#L90-L91
|
|
if errors.Is(err, os.ErrNotExist) {
|
|
err = fmt.Errorf("file not exist %s: %w", configPath, err)
|
|
return
|
|
}
|
|
}
|
|
defer f.Close()
|
|
|
|
bytes, err := ioutil.ReadAll(f)
|
|
if err != nil {
|
|
err = fmt.Errorf("failed to read %s: %w", configPath, err)
|
|
return
|
|
}
|
|
|
|
if err := json.Unmarshal(bytes, &result); err != nil {
|
|
err = fmt.Errorf("failed to unmarshal: %w", err)
|
|
return
|
|
}
|
|
|
|
result.Path = configPath
|
|
return
|
|
}
|
|
|
|
// internal -> external
|
|
func (c *Config) Install() error {
|
|
for _, app := range c.Apps {
|
|
for _, file := range app.Files {
|
|
if err := os.RemoveAll(file.External); err != nil {
|
|
return fmt.Errorf("failed to remove %s: %w", file.External, err)
|
|
}
|
|
|
|
if err := copy.CopyFile(file.Internal, file.External); err != nil {
|
|
return fmt.Errorf("failed to copy from %s to %s: %w", file.Internal, file.External, err)
|
|
}
|
|
}
|
|
|
|
for _, dir := range app.Dirs {
|
|
if err := os.RemoveAll(dir.External); err != nil {
|
|
return fmt.Errorf("failed to remove %s: %w", dir.External, err)
|
|
}
|
|
|
|
if err := copy.CopyDir(dir.Internal, dir.External); err != nil {
|
|
return fmt.Errorf("failed to copy from %s to %s: %w", dir.Internal, dir.External, err)
|
|
}
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// external -> internal
|
|
func (c *Config) Update() error {
|
|
return nil
|
|
}
|
|
|
|
func getConfigPath(path string) string {
|
|
return filepath.Join(path, "configs/config.json")
|
|
}
|