100 lines
2.1 KiB
Go
100 lines
2.1 KiB
Go
package gitmedia
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import (
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"fmt"
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"io/ioutil"
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"os"
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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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LocalWorkingDir string
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LocalGitDir string
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LocalMediaDir string
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LocalLogDir 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 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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Panic(err, "Error trying to create local media directory: %s", path)
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}
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return filepath.Join(path, sha)
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}
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func Environ() []string {
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osEnviron := os.Environ()
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env := make([]string, 4, len(osEnviron)+4)
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env[0] = fmt.Sprintf("LocalWorkingDir=%s", LocalWorkingDir)
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env[1] = fmt.Sprintf("LocalGitDir=%s", LocalGitDir)
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env[2] = fmt.Sprintf("LocalMediaDir=%s", LocalMediaDir)
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env[3] = fmt.Sprintf("TempDir=%s", TempDir)
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for _, e := range osEnviron {
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if !strings.Contains(e, "GIT_") {
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continue
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}
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env = append(env, e)
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}
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return env
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}
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func InRepo() bool {
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return LocalWorkingDir != ""
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}
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func init() {
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var err error
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LocalWorkingDir, LocalGitDir, err = resolveGitDir()
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if err == nil {
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LocalMediaDir = filepath.Join(LocalGitDir, "media")
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LocalLogDir = filepath.Join(LocalMediaDir, "logs")
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queueDir = setupQueueDir()
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if err := os.MkdirAll(TempDir, 0744); err != nil {
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Panic(err, "Error trying to create temp directory: %s", TempDir)
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}
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}
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}
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func resolveGitDir() (string, string, error) {
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wd, err := os.Getwd()
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if err != nil {
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Panic(err, "Error reading working directory")
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}
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return recursiveResolveGitDir(wd)
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}
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func recursiveResolveGitDir(dir string) (string, string, error) {
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if len(dir) == 1 && dir[0] == os.PathSeparator {
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return "", "", fmt.Errorf("Git repository not found")
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}
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if filepath.Base(dir) == gitExt {
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return filepath.Dir(dir), dir, nil
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}
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gitDir := filepath.Join(dir, gitExt)
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if info, err := os.Stat(gitDir); err == nil {
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if info.IsDir() {
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return dir, gitDir, nil
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}
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}
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return recursiveResolveGitDir(filepath.Dir(dir))
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}
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const gitExt = ".git"
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