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|
package main
import (
"bufio"
"fmt"
"io/ioutil"
"os"
"os/user"
"path/filepath"
"runtime"
"sort"
"strings"
"github.com/go-ini/ini"
"github.com/gocarina/gocsv"
flag "github.com/ogier/pflag"
)
const version = 0
type Runnable struct {
Cmd string `csv:"name"`
Count int `csv:"count"`
}
type Config struct {
DmenuParams string
Ignore []string `delim:","`
}
type CmdList []*Runnable
func (c CmdList) Len() int {
return len(c)
}
func (c CmdList) Swap(i, j int) {
c[i], c[j] = c[j], c[i]
}
func (c CmdList) Less(i, j int) bool {
return c[i].Count > c[j].Count
}
var (
prePhase bool
postPhase bool
launcher bool
dbFilePath string
config Config
)
func isInIgnoreList(item string) bool {
for _, i := range config.Ignore {
if i == item {
return true
}
}
return false
}
func addIfNotContains(items []string, item string) []string {
for _, i := range items {
if i == item {
return items
}
}
return append(items, item)
}
func openDB() map[string]int {
list := CmdList{}
file, _ := os.Open(dbFilePath)
if err := gocsv.UnmarshalFile(file, &list); err != nil {
panic(err)
}
itemSet := make(map[string]int)
for _, item := range list {
itemSet[item.Cmd] = item.Count
}
return itemSet
}
func generatePath() []string {
sysPath := os.Getenv("PATH")
paths := strings.Split(sysPath, ":")
pathItems := sort.StringSlice{}
for _, p := range paths {
if _, err := os.Stat(p); err == nil {
files, _ := ioutil.ReadDir(p)
for _, f := range files {
if !isInIgnoreList(f.Name()) {
pathItems = addIfNotContains(pathItems, f.Name())
}
}
}
}
sort.Sort(pathItems)
return pathItems
}
func rankPath(pathItems []string) CmdList {
itemSet := openDB()
rankedItems := CmdList{}
for _, item := range pathItems {
count, exists := itemSet[item]
if !exists {
count = 0
}
rankedItems = append(rankedItems, &Runnable{item, count})
}
sort.Sort(rankedItems)
return rankedItems
}
func loadIni() {
usr, _ := user.Current()
configPath := filepath.Join(usr.HomeDir, ".goboom")
iniFile := filepath.Join(configPath, "config.ini")
dbFilePath = filepath.Join(configPath, "rankdb.csv")
if _, err := os.Stat(configPath); err != nil {
err := os.Mkdir(configPath, os.ModePerm)
if err != nil {
fmt.Println("failed to create config dir")
}
}
config = Config{}
if err := ini.MapToWithMapper(&config, ini.TitleUnderscore, iniFile); err != nil {
panic(err)
}
}
func updateRank(runnable string) {
itemSet := openDB()
count, exists := itemSet[runnable]
if !exists {
itemSet[runnable] = 1
} else {
itemSet[runnable] = count + 1
}
writeDB(itemSet)
}
func writeDB(itemSet map[string]int) {
items := CmdList{}
for runnable, count := range itemSet {
items = append(items, &Runnable{runnable, count})
}
file, err := os.OpenFile(dbFilePath, os.O_RDWR|os.O_CREATE, os.ModePerm)
if err != nil {
panic(err)
}
if err = gocsv.MarshalFile(&items, file); err != nil {
panic(err)
}
}
func main() {
flag.BoolVar(&prePhase, "pre", false, "Generate dmenu in")
flag.BoolVar(&launcher, "launcher", false, "Output launcher command")
flag.BoolVar(&postPhase, "post", false, "Update ranking DB")
flag.Parse()
loadIni()
if prePhase {
pathList := generatePath()
sortedList := rankPath(pathList)
for _, item := range sortedList {
fmt.Println(item.Cmd)
}
} else if postPhase {
scanner := bufio.NewScanner(os.Stdin)
scanner.Scan()
input := scanner.Text()
updateRank(input)
fmt.Print(input)
} else if launcher {
fmt.Print("dmenu " + config.DmenuParams)
} else {
fmt.Printf("goboom v%d (%s/%s/%s)\n", version, runtime.GOOS, runtime.GOARCH, runtime.Version())
fmt.Println("\nTo actually use goboom execute goboom_run\n")
flag.Usage()
}
}
|
