autorestic/internal/utils.go
Nicco 5bcf5c9217
1.7.0 (#188)
* stream the output (#186)

* dont duplicate global flags (#187)

* docs for tagging

* fix self update path (#190)

* version bump & changelog
2022-04-27 00:48:52 +02:00

119 lines
2.4 KiB
Go

package internal
import (
"bytes"
"fmt"
"io"
"os"
"os/exec"
"github.com/cupcakearmy/autorestic/internal/colors"
"github.com/cupcakearmy/autorestic/internal/flags"
"github.com/fatih/color"
)
func CheckIfCommandIsCallable(cmd string) bool {
_, err := exec.LookPath(cmd)
return err == nil
}
func CheckIfResticIsCallable() bool {
return CheckIfCommandIsCallable(flags.RESTIC_BIN)
}
type ExecuteOptions struct {
Command string
Envs map[string]string
Dir string
Silent bool
}
type ColoredWriter struct {
target io.Writer
color *color.Color
}
func (w ColoredWriter) Write(p []byte) (n int, err error) {
colored := []byte(w.color.Sprint(string(p)))
w.target.Write(colored)
return len(p), nil
}
func ExecuteCommand(options ExecuteOptions, args ...string) (int, string, error) {
cmd := exec.Command(options.Command, args...)
env := os.Environ()
for k, v := range options.Envs {
env = append(env, fmt.Sprintf("%s=%s", k, v))
}
cmd.Env = env
cmd.Dir = options.Dir
if flags.VERBOSE {
colors.Faint.Printf("> Executing: %s\n", cmd)
}
var out bytes.Buffer
var error bytes.Buffer
if flags.VERBOSE && !options.Silent {
var colored ColoredWriter = ColoredWriter{
target: os.Stdout,
color: colors.Faint,
}
mw := io.MultiWriter(colored, &out)
cmd.Stdout = mw
} else {
cmd.Stdout = &out
}
cmd.Stderr = &error
err := cmd.Run()
if err != nil {
code := -1
if exitError, ok := err.(*exec.ExitError); ok {
code = exitError.ExitCode()
}
return code, error.String(), err
}
return 0, out.String(), nil
}
func ExecuteResticCommand(options ExecuteOptions, args ...string) (int, string, error) {
options.Command = flags.RESTIC_BIN
var c = GetConfig()
var optionsAsString = getOptions(c.Global, []string{"all"})
args = append(optionsAsString, args...)
return ExecuteCommand(options, args...)
}
func CopyFile(from, to string) error {
original, err := os.Open(from)
if err != nil {
return nil
}
defer original.Close()
new, err := os.Create(to)
if err != nil {
return nil
}
defer new.Close()
if _, err := io.Copy(new, original); err != nil {
return err
}
return nil
}
func CheckIfVolumeExists(volume string) bool {
_, _, err := ExecuteCommand(ExecuteOptions{Command: "docker"}, "volume", "inspect", volume)
return err == nil
}
func ArrayContains[T comparable](arr []T, needle T) bool {
for _, item := range arr {
if item == needle {
return true
}
}
return false
}