func main() {
opts := initConfig(os.Args)
if *opts.help {
getopt.PrintUsage(os.Stdout)
} else {
/*Passing stdin for test mocking*/
files, errs := handleArgs(os.Stdin, getopt.CommandLine)
for _, file := range files {
if len(file) != 0 {
if err := copyPaste(file, opts); err != nil {
errs = append(errs, err)
}
}
}
for _, err := range errs {
log.Print(err)
}
if len(errs) > 0 {
os.Exit(-1)
}
}
}
func main() {
log.SetFlags(log.LstdFlags | log.Lshortfile)
// var needle string
// var filepattern string
var distance int
var patternFile string
var help bool
var verbose bool
var simpleoutput bool
getopt.IntVarLong(&distance, "edit", 'e', "Compute the approximate matching", "max_dist")
getopt.StringVarLong(&patternFile, "pattern", 'p', "Use line-break separated patterns from a file", "filepath")
getopt.StringVarLong(&cpuprofile, "cpuprofile", 0, "Write cpuprofile file", "path")
getopt.StringVarLong(&memprofile, "memprofile", 0, "Write memprofile file", "path")
getopt.BoolVarLong(&help, "help", 'h', "Shows this message")
getopt.BoolVarLong(&verbose, "verbose", 'v', "Show log messages")
getopt.BoolVarLong(&simpleoutput, "simple", 's', "Show simple output")
getopt.SetProgram("pmt")
getopt.SetParameters("needle [haystack ...]")
getopt.SetUsage(func() {
getopt.PrintUsage(os.Stderr)
fmt.Fprintf(os.Stderr, "needle - only if -p was not used\n")
fmt.Fprint(os.Stderr, "haystack\n")
})
getopt.Parse()
if cpuprofile != "" {
f, err := os.Create(cpuprofile)
if err != nil {
log.Fatal(err)
}
pprof.StartCPUProfile(f)
defer pprof.StopCPUProfile()
}
if help {
getopt.Usage()
return
}
var patterns []string
var files []string
if patternFile == "" {
// if(len(getopt.Args() )
if getopt.NArgs() < 1 {
fmt.Fprintf(os.Stderr, "Needle is missing!\n")
getopt.Usage()
os.Exit(1)
}
patterns = getopt.Args()[:1]
files = getopt.Args()[1:]
} else {
var err error
patterns, err = readLinesFromFile(patternFile)
if err != nil {
log.Fatal(err)
}
files = getopt.Args()
}
if verbose {
log.Printf("%v %v %v\n", patterns, files, distance)
}
fileset := findFilesMatch(files)
if distance == 0 {
if len(patterns) == 1 {
matcher := streammatch.NewKMP([]byte(patterns[0]))
for fp, _ := range fileset {
file, err := os.Open(fp)
if err != nil {
log.Fatal(err)
}
matches, err := processSingleExactMatcher(file, matcher, true)
if err != nil {
log.Fatal(err)
}
if !simpleoutput {
printMatches(fp, file, patterns, matches, distance)
if len(matches) > 0 {
fmt.Println("###")
}
} else {
printSimpleMatches(fp, file, patterns, matches)
}
}
} else if len(patterns) > 1 {
bpatterns := make([][]byte, len(patterns))
for i, pattern := range patterns {
bpatterns[i] = []byte(pattern)
}
matcher := streammatch.NewAhoCorasick(bpatterns)
for fp, _ := range fileset {
file, err := os.Open(fp)
if err != nil {
log.Fatal(err)
}
matches, err := processMultiExactMatcher(file, matcher)
if err != nil {
log.Fatal(err)
}
if !simpleoutput {
printMatches(fp, file, patterns, matches, distance)
if len(matches) > 0 {
fmt.Println("###")
}
} else {
printSimpleMatches(fp, file, patterns, matches)
}
}
}
} else {
matchers := make([]streammatch.Matcher, 0, len(patterns))
for i := 0; i < len(patterns); i++ {
matchers = append(matchers, streammatch.NewSellers([]byte(patterns[i]), distance))
}
for fp, _ := range fileset {
file, err := os.Open(fp)
if err != nil {
log.Fatal(err)
}
bufreader := bufio.NewReaderSize(file, defaultBufSize)
allmatches := make([]matchRecord, 0, 2)
for _, matcher := range matchers {
_, err := file.Seek(0, 0)
if err != nil {
log.Fatal(err)
}
bufreader.Reset(file)
matches, err := processSingleExactMatcher(bufreader, matcher, false)
if err != nil {
log.Fatal(err)
}
allmatches = append(allmatches, matches...)
}
sort.Stable(matchRecordList(allmatches))
if !simpleoutput {
printMatches(fp, file, patterns, allmatches, distance)
if len(allmatches) > 0 {
fmt.Println("###")
}
} else {
printSimpleMatches(fp, file, patterns, allmatches)
}
}
}
if memprofile != "" {
f, err := os.Create(memprofile)
if err != nil {
log.Fatal(err)
}
pprof.WriteHeapProfile(f)
defer f.Close()
return
}
}