112 lines
2.0 KiB
Go
112 lines
2.0 KiB
Go
package gitmedia
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import (
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"flag"
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"fmt"
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"io/ioutil"
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"log"
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"os"
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"os/exec"
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"path/filepath"
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"strings"
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)
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const Version = "0.0.1"
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var (
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LargeSizeThreshold = 5 * 1024 * 1024
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TempDir = filepath.Join(os.TempDir(), "git-media")
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LocalMediaDir string
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)
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func TempFile() (*os.File, error) {
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return ioutil.TempFile(TempDir, "")
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}
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func SimpleExec(name string, arg ...string) string {
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output, err := exec.Command(name, arg...).Output()
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if _, ok := err.(*exec.ExitError); ok {
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return ""
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} else if err != nil {
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fmt.Printf("error running: %s %s\n", name, arg)
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panic(err)
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}
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return strings.Trim(string(output), " \n")
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}
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func LocalMediaPath(sha string) string {
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path := filepath.Join(LocalMediaDir, sha[0:2], sha[2:4])
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if err := os.MkdirAll(path, 0744); err != nil {
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fmt.Printf("Error trying to create local media directory: %s\n", path)
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panic(err)
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}
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return filepath.Join(path, sha)
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}
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func Panic(err error, format string, args ...interface{}) {
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line := fmt.Sprintf(format, args...)
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Debug(line)
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fmt.Println(line)
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if err != nil {
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Debug(err.Error())
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panic(err)
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}
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}
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func Debug(format string, args ...interface{}) {
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if !*debugging {
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return
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}
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log.Printf(format, args...)
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}
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func init() {
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LocalMediaDir = resolveMediaDir()
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queueDir = setupQueueDir()
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if err := os.MkdirAll(TempDir, 0744); err != nil {
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fmt.Printf("Error trying to create temp directory: %s\n", TempDir)
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panic(err)
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}
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}
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var debugging = flag.Bool("debug", false, "Turns debugging on")
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func SetupDebugging() {
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flag.Parse()
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if *debugging {
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log.SetOutput(os.Stderr)
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}
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}
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func resolveMediaDir() string {
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dir := os.Getenv("GIT_MEDIA_DIR")
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if len(dir) > 0 {
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return dir
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}
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dir = os.Getenv("GIT_DIR")
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if len(dir) == 0 {
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wd, err := os.Getwd()
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if err != nil {
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panic(err)
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}
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dir = wd
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}
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return filepath.Join(resolveGitDir(dir), "media")
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}
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func resolveGitDir(dir string) string {
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base := filepath.Base(dir)
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gitext := ".git"
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if base == gitext || filepath.Ext(base) == gitext {
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return dir
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}
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return filepath.Join(dir, gitext)
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}
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