func mainDiff(args []string) int {
f := flag.NewFlagSet("status", flag.ExitOnError)
opt_from := f.String("from", "", "Specify the source directory")
opt_to := f.String("to", "", "Specify the destination directory")
f.Usage = func() {
fmt.Print(usageMissing)
f.PrintDefaults()
}
f.Parse(args)
src, dst := findSourceDest(*opt_from, *opt_to, f.Args())
srcfiles, err := commit.ReadCommit(src)
if err != nil {
fmt.Fprintf(os.Stderr, "%s: %s", src, err.Error())
}
dstfiles, err := commit.ReadCommit(dst)
if err != nil {
fmt.Fprintf(os.Stderr, "%s: %s", dst, err.Error())
}
var filelist []string
for file := range srcfiles.ByPath {
filelist = append(filelist, file)
}
for file := range dstfiles.ByPath {
if _, ok := srcfiles.ByPath[file]; !ok {
filelist = append(filelist, file)
}
}
sort.Strings(filelist)
for _, file := range filelist {
var s, d commit.Entry
sid, hassrc := srcfiles.ByPath[file]
did, hasdst := dstfiles.ByPath[file]
if hassrc {
s = srcfiles.Entries[sid]
}
if hasdst {
d = dstfiles.Entries[did]
}
if hassrc && !hasdst {
fmt.Printf("- %s\t%s\n", s.HashText(), commit.EncodePath(file))
} else if !hassrc && hasdst {
fmt.Printf("+ %s\t%s\n", d.HashText(), commit.EncodePath(file))
} else if !bytes.Equal(s.Hash, d.Hash) {
fmt.Printf("- %s\t%s\n", s.HashText(), commit.EncodePath(file))
fmt.Printf("+ %s\t%s\n", d.HashText(), commit.EncodePath(file))
}
}
return 0
}
