func Main() {
g := regexp.Grep{
Stdout: os.Stdout,
Stderr: os.Stderr,
}
g.AddFlags()
flag.Usage = usage
flag.Parse()
args := flag.Args()
if len(args) != 1 {
usage()
}
if *cpuProfile != "" {
f, err := os.Create(*cpuProfile)
if err != nil {
log.Fatal(err)
}
defer f.Close()
pprof.StartCPUProfile(f)
defer pprof.StopCPUProfile()
}
pat := "(?m)" + args[0]
if *iFlag {
pat = "(?i)" + pat
}
re, err := regexp.Compile(pat)
if err != nil {
log.Fatal(err)
}
g.Regexp = re
var fre *regexp.Regexp
if *fFlag != "" {
fre, err = regexp.Compile(*fFlag)
if err != nil {
log.Fatal(err)
}
}
q := index.RegexpQuery(re.Syntax)
if *verboseFlag {
log.Printf("query: %s\n", q)
}
ix := index.Open(index.File())
ix.Verbose = *verboseFlag
var post []uint32
if *bruteFlag {
post = ix.PostingQuery(&index.Query{Op: index.QAll})
} else {
post = ix.PostingQuery(q)
}
if *verboseFlag {
log.Printf("post query identified %d possible files\n", len(post))
}
if fre != nil {
fnames := make([]uint32, 0, len(post))
for _, fileid := range post {
name := ix.Name(fileid)
if fre.MatchString(name, true, true) < 0 {
continue
}
fnames = append(fnames, fileid)
}
if *verboseFlag {
log.Printf("filename regexp matched %d files\n", len(fnames))
}
post = fnames
}
for _, fileid := range post {
name := ix.Name(fileid)
if strings.HasSuffix(name, ".gz") {
f, _ := os.Open(name)
gz_f, _ := gzip.NewReader(f)
g.Reader(gz_f, name)
} else {
g.File(name)
}
}
matches = g.Match
}
func main() {
flag.Usage = usage
flag.Parse()
args := flag.Args()
if *listFlag {
ix := index.Open(index.File())
for _, arg := range ix.Paths() {
fmt.Printf("%s\n", arg)
}
return
}
if *cpuProfile != "" {
f, err := os.Create(*cpuProfile)
if err != nil {
log.Fatal(err)
}
defer f.Close()
pprof.StartCPUProfile(f)
defer pprof.StopCPUProfile()
}
if *resetFlag && len(args) == 0 {
os.Remove(index.File())
return
}
if len(args) == 0 {
ix := index.Open(index.File())
for _, arg := range ix.Paths() {
args = append(args, arg)
}
}
// Translate paths to absolute paths so that we can
// generate the file list in sorted order.
for i, arg := range args {
a, err := filepath.Abs(arg)
if err != nil {
log.Printf("%s: %s", arg, err)
args[i] = ""
continue
}
args[i] = a
}
sort.Strings(args)
for len(args) > 0 && args[0] == "" {
args = args[1:]
}
master := index.File()
if _, err := os.Stat(master); err != nil {
// Does not exist.
*resetFlag = true
}
file := master
if !*resetFlag {
file += "~"
}
ix := index.Create(file)
ix.Verbose = *verboseFlag
ix.LogSkip = *verboseFlag
ix.AddPaths(args)
for _, arg := range args {
log.Printf("index %s", arg)
filepath.Walk(arg, func(path string, info os.FileInfo, err error) error {
if _, elem := filepath.Split(path); elem != "" {
// Skip various temporary or "hidden" files or directories.
if elem[0] == '.' || elem[0] == '#' || elem[0] == '~' || elem[len(elem)-1] == '~' {
if info.IsDir() {
return filepath.SkipDir
}
return nil
}
}
if err != nil {
log.Printf("%s: %s", path, err)
return nil
}
if info != nil && info.Mode()&os.ModeType == 0 {
ix.AddFile(path)
}
return nil
})
}
log.Printf("flush index")
ix.Flush()
if !*resetFlag {
log.Printf("merge %s %s", master, file)
index.Merge(file+"~", master, file)
os.Remove(file)
os.Rename(file+"~", master)
}
log.Printf("done")
return
}