"io"
"os"
"path"
- "strings"
+ "path/filepath"
"go.cypherpunks.ru/recfile"
- "golang.org/x/crypto/blake2b"
"golang.org/x/sys/unix"
+ "lukechampine.com/blake3"
)
+var DirPrefix string
+
func recfileWrite(fdDep *os.File, fields ...recfile.Field) error {
w := recfile.NewWriter(fdDep)
if _, err := w.RecordStart(); err != nil {
}
func fileHash(fd *os.File) (string, error) {
- h, err := blake2b.New256(nil)
- if err != nil {
- panic(err)
- }
- if _, err = io.Copy(h, bufio.NewReader(fd)); err != nil {
+ h := blake3.New(32, nil)
+ if _, err := io.Copy(h, bufio.NewReader(fd)); err != nil {
return "", err
}
return hex.EncodeToString(h.Sum(nil)), nil
)
}
-func writeDeps(fdDep *os.File, tgts []string) error {
+func writeDeps(fdDep *os.File, tgts []string) (err error) {
if fdDep == nil {
trace(CDebug, "no opened fdDep: %s", tgts)
return nil
}
- ups := []string{}
- upLevels := strings.Count(os.Getenv(EnvDirPrefix), "/")
- for i := 0; i < upLevels; i++ {
- ups = append(ups, "..")
- }
- up := path.Join(ups...)
for _, tgt := range tgts {
- if _, err := os.Stat(tgt); err == nil {
- if err = writeDep(fdDep, Cwd, path.Join(up, tgt)); err != nil {
- return err
- }
+ tgtAbs, err := filepath.Abs(tgt)
+ if err != nil {
+ panic(err)
+ }
+ tgtDir := path.Join(Cwd, DirPrefix)
+ tgtRel, err := filepath.Rel(tgtDir, tgtAbs)
+ if err != nil {
+ panic(err)
+ }
+ if _, errStat := os.Stat(tgt); errStat == nil {
+ err = writeDep(fdDep, tgtDir, tgtRel)
+ } else {
+ trace(CDebug, "ifchange: %s <- %s (unexisting)", fdDep.Name(), tgtRel)
+ err = recfileWrite(
+ fdDep,
+ recfile.Field{Name: "Type", Value: DepTypeIfchange},
+ recfile.Field{Name: "Target", Value: tgtRel},
+ recfile.Field{Name: "Ctime", Value: "0.0"},
+ )
}
}
- return nil
+ return
}
type DepInfo struct {