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main.go
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main.go
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// Copyright 2012 Kevin Gillette. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import (
"flag"
"fmt"
"log"
"os/user"
"path/filepath"
"sort"
"strings"
)
func main() {
var path string
if u, err := user.Current(); err != nil {
log.Fatalln("Could not determine home directory")
} else {
path = filepath.Join(u.HomeDir, ".crawl", "morgue")
}
var invertGrouping bool
flag.BoolVar(&invertGrouping, "i", false, "invert grouping (display names by type)")
flag.Parse()
filenames, err := filepath.Glob(filepath.Join(path, "morgue-*.txt"))
if err != nil {
log.Fatalln(err)
}
var (
filter bool
restrict map[string]bool
)
if args := flag.Args(); len(args) > 0 {
filter = true
restrict = make(map[string]bool, len(args))
for _, name := range args {
name = strings.ToLower(strings.Join(strings.Fields(name), ""))
restrict[name] = true
}
}
groups := make(map[string][]string, len(filenames))
for _, filename := range filenames {
name := ExtractName(filename)
if filter && !restrict[strings.ToLower(name)] {
continue
}
name, desc, err := Parse(filename, name)
if err != nil {
continue
}
var key, value string
if invertGrouping {
key, value = desc, name
} else {
key, value = name, desc
}
groups[key] = SetAdd(groups[key], value)
}
keys := make([]string, 0, len(groups))
for key := range groups {
keys = append(keys, key)
}
sort.Strings(keys)
for _, key := range keys {
set := groups[key]
sort.Strings(set)
fmt.Printf("%s:\n", key)
for _, value := range set {
fmt.Println("-", value)
}
fmt.Println()
}
}
func SetAdd(s []string, v string) []string {
for _, x := range s {
if v == x {
return s
}
}
return append(s, v)
}
func ExtractName(filename string) string {
parts := strings.Split(filename, "-")
return strings.Join(parts[1:len(parts)-2], "-")
}