yay/cmd.go
J Guerreiro f000afaa42
Merge pull request #168 from seankhliao/master
add config.String() to pretty print default config in valid json
2018-02-27 01:44:45 +00:00

732 lines
16 KiB
Go

package main
import (
"bufio"
"encoding/json"
"errors"
"fmt"
"os"
"os/exec"
"path/filepath"
"strconv"
"strings"
"time"
)
var cmdArgs = makeArguments()
func usage() {
fmt.Println(`Usage:
yay <operation> [...]
yay <package(s)>
operations:
yay {-h --help}
yay {-V --version}
yay {-D --database} <options> <package(s)>
yay {-F --files} [options] [package(s)]
yay {-Q --query} [options] [package(s)]
yay {-R --remove} [options] <package(s)>
yay {-S --sync} [options] [package(s)]
yay {-T --deptest} [options] [package(s)]
yay {-U --upgrade} [options] <file(s)>
New operations:
yay {-Y --yay} [options] [package(s)]
yay {-P --print} [options]
yay {-G --getpkgbuild} [package(s)]
Permanent configuration options:
--topdown Shows repository's packages first and then AUR's
--bottomup Shows AUR's packages first and then repository's
--devel Check -git/-svn/-hg development version
--nodevel Disable development version checking
--afterclean Clean package sources after successful build
--noafterclean Disable package sources cleaning after successful build
--timeupdate Check package's modification date and version
--notimeupdate Check only package version change
Print specific options:
-c --complete Used for completions
-d --defaultconfig Print default yay configuration
-g --config Print current yay configuration
-n --numberupgrades Print number of updates
-s --stats Display system package statistics
-u --upgrades Print update list
Yay specific options:
-g --getpkgbuild Download PKGBUILD from ABS or AUR
-c --clean Remove unneeded dependencies
--gendb Generates development package DB used for updating.
If no operation is provided -Y will be assumed
`)
}
func initYay() (err error) {
var configHome string // configHome handles config directory home
var cacheHome string // cacheHome handles cache home
if 0 == os.Geteuid() {
fmt.Println("Please avoid running yay as root/sudo.")
}
if configHome = os.Getenv("XDG_CONFIG_HOME"); configHome != "" {
if info, err := os.Stat(configHome); err == nil && info.IsDir() {
configHome = configHome + "/yay"
} else {
configHome = os.Getenv("HOME") + "/.config/yay"
}
} else {
configHome = os.Getenv("HOME") + "/.config/yay"
}
if cacheHome = os.Getenv("XDG_CACHE_HOME"); cacheHome != "" {
if info, err := os.Stat(cacheHome); err == nil && info.IsDir() {
cacheHome = cacheHome + "/yay"
} else {
cacheHome = os.Getenv("HOME") + "/.cache/yay"
}
} else {
cacheHome = os.Getenv("HOME") + "/.cache/yay"
}
configFile = configHome + "/config.json"
vcsFile = configHome + "/yay_vcs.json"
completionFile = cacheHome + "/aur_"
////////////////
// yay config //
////////////////
defaultSettings(&config)
if _, err = os.Stat(configFile); os.IsNotExist(err) {
err = os.MkdirAll(filepath.Dir(configFile), 0755)
if err != nil {
err = fmt.Errorf("Unable to create config directory:\n%s\n"+
"The error was:\n%s", filepath.Dir(configFile), err)
return
}
// Save the default config if nothing is found
config.saveConfig()
} else {
cfile, errf := os.OpenFile(configFile, os.O_RDWR|os.O_CREATE, 0644)
if errf != nil {
fmt.Printf("Error reading config: %s\n", err)
} else {
defer cfile.Close()
decoder := json.NewDecoder(cfile)
err = decoder.Decode(&config)
if err != nil {
fmt.Println("Loading default Settings.\nError reading config:",
err)
defaultSettings(&config)
}
}
}
/////////////////
// vcs config //
////////////////
updated = false
vfile, err := os.OpenFile(vcsFile, os.O_RDONLY|os.O_CREATE, 0644)
if err == nil {
defer vfile.Close()
decoder := json.NewDecoder(vfile)
_ = decoder.Decode(&savedInfo)
}
return
}
func initAlpm() (err error) {
/////////////////
// alpm config //
/////////////////
var value string
var exists bool
//var double bool
value, _, exists = cmdArgs.getArg("config")
if exists {
config.PacmanConf = value
}
alpmConf, err = readAlpmConfig(config.PacmanConf)
if err != nil {
err = fmt.Errorf("Unable to read Pacman conf: %s", err)
return
}
value, _, exists = cmdArgs.getArg("dbpath", "b")
if exists {
alpmConf.DBPath = value
}
value, _, exists = cmdArgs.getArg("root", "r")
if exists {
alpmConf.RootDir = value
}
value, _, exists = cmdArgs.getArg("arch")
if exists {
alpmConf.Architecture = value
}
//TODO
//current system does not allow duplicate arguments
//but pacman allows multiple cachdirs to be passed
//for now only handle one cache dir
value, _, exists = cmdArgs.getArg("cachdir")
if exists {
alpmConf.CacheDir = []string{value}
}
value, _, exists = cmdArgs.getArg("gpgdir")
if exists {
alpmConf.GPGDir = value
}
alpmHandle, err = alpmConf.CreateHandle()
if err != nil {
err = fmt.Errorf("Unable to CreateHandle: %s", err)
return
}
return
}
func main() {
var status int
var err error
err = cmdArgs.parseCommandLine()
if err != nil {
fmt.Println(err)
status = 1
goto cleanup
}
err = initYay()
if err != nil {
fmt.Println(err)
status = 1
goto cleanup
}
err = initAlpm()
if err != nil {
fmt.Println(err)
status = 1
goto cleanup
}
err = handleCmd()
if err != nil {
fmt.Println(err)
status = 1
goto cleanup
}
//ive used a goto here
//i think its the best way to do this sort of thing
cleanup:
//cleanup
//from here on out dont exit if an error occurs
//if we fail to save the configuration
//at least continue on and try clean up other parts
if updated {
err = saveVCSInfo()
if err != nil {
fmt.Println(err)
status = 1
}
}
if changedConfig {
err = config.saveConfig()
if err != nil {
fmt.Println(err)
status = 1
}
}
if alpmHandle != nil {
err = alpmHandle.Release()
if err != nil {
fmt.Println(err)
status = 1
}
}
os.Exit(status)
}
func sudoLoopBackground() {
updateSudo()
go sudoLoop()
}
func sudoLoop() {
for {
updateSudo()
time.Sleep(298 * time.Second)
}
}
func updateSudo() {
for {
cmd := exec.Command("sudo", "-v")
cmd.Stdin, cmd.Stdout, cmd.Stderr = os.Stdin, os.Stdout, os.Stderr
err := cmd.Run()
if err != nil {
fmt.Println(err)
} else {
break
}
}
}
func handleCmd() (err error) {
for option := range cmdArgs.options {
if handleConfig(option) {
cmdArgs.delArg(option)
}
}
for option := range cmdArgs.globals {
if handleConfig(option) {
cmdArgs.delArg(option)
}
}
if config.SudoLoop == true && cmdArgs.needRoot() {
sudoLoopBackground()
}
switch cmdArgs.op {
case "V", "version":
handleVersion()
case "D", "database":
passToPacman(cmdArgs)
case "F", "files":
passToPacman(cmdArgs)
case "Q", "query":
passToPacman(cmdArgs)
case "R", "remove":
handleRemove()
case "S", "sync":
err = handleSync()
case "T", "deptest":
passToPacman(cmdArgs)
case "U", "upgrade":
passToPacman(cmdArgs)
case "G", "getpkgbuild":
err = handleGetpkgbuild()
case "P", "print":
err = handlePrint()
case "Y", "--yay":
err = handleYay()
default:
//this means we allowed an op but not implement it
//if this happens it an error in the code and not the usage
err = fmt.Errorf("unhandled operation")
}
return
}
//this function should only set config options
//but currently still uses the switch left over from old code
//eventually this should be refactored out futher
//my current plan is to have yay specific operations in its own operator
//e.g. yay -Y --gendb
//e.g yay -Yg
func handleConfig(option string) bool {
switch option {
case "afterclean":
config.CleanAfter = true
case "noafterclean":
config.CleanAfter = false
// case "gendb":
// err = createDevelDB()
// if err != nil {
// fmt.Println(err)
// }
// err = saveVCSInfo()
// if err != nil {
// fmt.Println(err)
// }
// os.Exit(0)
case "devel":
config.Devel = true
case "nodevel":
config.Devel = false
case "timeupdate":
config.TimeUpdate = true
case "notimeupdate":
config.TimeUpdate = false
case "topdown":
config.SortMode = TopDown
case "bottomup":
config.SortMode = BottomUp
// case "help":
// usage()
// os.Exit(0)
// case "version":
// fmt.Printf("yay v%s\n", version)
// os.Exit(0)
case "noconfirm":
config.NoConfirm = true
default:
return false
}
changedConfig = true
return true
}
func handleVersion() {
fmt.Printf("yay v%s\n", version)
}
func handlePrint() (err error) {
switch {
case cmdArgs.existsArg("d", "defaultconfig"):
var tmpConfig Configuration
defaultSettings(&tmpConfig)
fmt.Printf("%v", tmpConfig)
case cmdArgs.existsArg("g", "config"):
fmt.Printf("%v", config)
case cmdArgs.existsArg("n", "numberupgrades"):
err = printNumberOfUpdates()
case cmdArgs.existsArg("u", "upgrades"):
err = printUpdateList()
case cmdArgs.existsArg("c", "complete"):
switch {
case cmdArgs.existsArg("f", "fish"):
complete("fish")
default:
complete("sh")
}
case cmdArgs.existsArg("s", "stats"):
err = localStatistics()
default:
err = nil
}
return err
}
func handleYay() (err error) {
//_, options, targets := cmdArgs.formatArgs()
if cmdArgs.existsArg("h", "help") {
usage()
} else if cmdArgs.existsArg("gendb") {
err = createDevelDB()
if err != nil {
return
}
err = saveVCSInfo()
if err != nil {
return
}
} else if cmdArgs.existsArg("c", "clean") {
err = cleanDependencies()
} else if cmdArgs.existsArg("g", "getpkgbuild") {
err = handleGetpkgbuild()
} else if len(cmdArgs.targets) > 0 {
err = handleYogurt()
}
return
}
func handleGetpkgbuild() (err error) {
for pkg := range cmdArgs.targets {
err = getPkgbuild(pkg)
if err != nil {
//we print the error instead of returning it
//seems as we can handle multiple errors without stoping
//theres no easy way around this right now
fmt.Println(pkg+":", err)
}
}
return
}
func handleYogurt() (err error) {
options := cmdArgs.formatArgs()
targets := cmdArgs.formatTargets()
config.SearchMode = NumberMenu
err = numberMenu(targets, options)
return
}
func handleSync() (err error) {
targets := cmdArgs.formatTargets()
if cmdArgs.existsArg("y", "refresh") {
arguments := cmdArgs.copy()
cmdArgs.delArg("y", "refresh")
arguments.delArg("u", "sysupgrade")
arguments.delArg("s", "search")
arguments.delArg("i", "info")
arguments.targets = make(stringSet)
err = passToPacman(arguments)
if err != nil {
return
}
}
if cmdArgs.existsArg("s", "search") {
if cmdArgs.existsArg("q", "quiet") {
config.SearchMode = Minimal
} else {
config.SearchMode = Detailed
}
err = syncSearch(targets)
} else if cmdArgs.existsArg("c", "clean") {
err = passToPacman(cmdArgs)
} else if cmdArgs.existsArg("u", "sysupgrade") {
err = upgradePkgs(make([]string, 0))
} else if cmdArgs.existsArg("i", "info") {
err = syncInfo(targets)
} else if len(cmdArgs.targets) > 0 {
err = install(cmdArgs)
}
return
}
func handleRemove() (err error) {
removeVCSPackage(cmdArgs.formatTargets())
err = passToPacman(cmdArgs)
return
}
// BuildIntRange build the range from start to end
func BuildIntRange(rangeStart, rangeEnd int) []int {
if rangeEnd-rangeStart == 0 {
// rangeEnd == rangeStart, which means no range
return []int{rangeStart}
}
if rangeEnd < rangeStart {
swap := rangeEnd
rangeEnd = rangeStart
rangeStart = swap
}
final := make([]int, 0)
for i := rangeStart; i <= rangeEnd; i++ {
final = append(final, i)
}
return final
}
// BuildRange construct a range of ints from the format 1-10
func BuildRange(input string) ([]int, error) {
multipleNums := strings.Split(input, "-")
if len(multipleNums) != 2 {
return nil, errors.New("Invalid range")
}
rangeStart, err := strconv.Atoi(multipleNums[0])
if err != nil {
return nil, err
}
rangeEnd, err := strconv.Atoi(multipleNums[1])
if err != nil {
return nil, err
}
return BuildIntRange(rangeStart, rangeEnd), err
}
// Contains returns whether e is present in s
func contains(s []string, e string) bool {
for _, a := range s {
if a == e {
return true
}
}
return false
}
// RemoveIntListFromList removes all src's elements that are present in target
func removeListFromList(src, target []string) []string {
max := len(target)
for i := 0; i < max; i++ {
if contains(src, target[i]) {
target = append(target[:i], target[i+1:]...)
max--
i--
}
}
return target
}
// NumberMenu presents a CLI for selecting packages to install.
func numberMenu(pkgS []string, flags []string) (err error) {
//func numberMenu(cmdArgs *arguments) (err error) {
var num int
aurQ, err := narrowSearch(pkgS, true)
if err != nil {
fmt.Println("Error during AUR search:", err)
}
numaq := len(aurQ)
repoQ, numpq, err := queryRepo(pkgS)
if err != nil {
return
}
if numpq == 0 && numaq == 0 {
return fmt.Errorf("no packages match search")
}
if config.SortMode == BottomUp {
aurQ.printSearch(numpq + 1)
repoQ.printSearch()
} else {
repoQ.printSearch()
aurQ.printSearch(numpq + 1)
}
fmt.Println(greenFg("Type the numbers or ranges (e.g. 1-10) you want to install. " +
"Separate each one of them with a space."))
fmt.Print("Numbers: ")
reader := bufio.NewReader(os.Stdin)
numberBuf, overflow, err := reader.ReadLine()
if err != nil || overflow {
fmt.Println(err)
return
}
numberString := string(numberBuf)
var aurI, aurNI, repoNI, repoI []string
result := strings.Fields(numberString)
for _, numS := range result {
negate := numS[0] == '^'
if negate {
numS = numS[1:]
}
var numbers []int
num, err = strconv.Atoi(numS)
if err != nil {
numbers, err = BuildRange(numS)
if err != nil {
continue
}
} else {
numbers = []int{num}
}
// Install package
for _, x := range numbers {
var target string
if x > numaq+numpq || x <= 0 {
continue
} else if x > numpq {
if config.SortMode == BottomUp {
target = aurQ[numaq+numpq-x].Name
} else {
target = aurQ[x-numpq-1].Name
}
if negate {
aurNI = append(aurNI, target)
} else {
aurI = append(aurI, target)
}
} else {
if config.SortMode == BottomUp {
target = repoQ[numpq-x].Name()
} else {
target = repoQ[x-1].Name()
}
if negate {
repoNI = append(repoNI, target)
} else {
repoI = append(repoI, target)
}
}
}
}
if len(repoI) == 0 && len(aurI) == 0 &&
(len(aurNI) > 0 || len(repoNI) > 0) {
// If no package was specified, only exclusions, exclude from all the
// packages
for _, pack := range aurQ {
aurI = append(aurI, pack.Name)
}
for _, pack := range repoQ {
repoI = append(repoI, pack.Name())
}
}
aurI = removeListFromList(aurNI, aurI)
repoI = removeListFromList(repoNI, repoI)
if config.SudoLoop == true {
sudoLoopBackground()
}
arguments := makeArguments()
arguments.addTarget(repoI...)
arguments.addTarget(aurI...)
err = install(arguments)
return err
}
// passToPacman outsources execution to pacman binary without modifications.
func passToPacman(args *arguments) error {
var cmd *exec.Cmd
argArr := make([]string, 0)
if args.needRoot() {
argArr = append(argArr, "sudo")
}
argArr = append(argArr, config.PacmanBin)
argArr = append(argArr, cmdArgs.formatGlobals()...)
argArr = append(argArr, args.formatArgs()...)
if config.NoConfirm {
argArr = append(argArr, "--noconfirm")
}
argArr = append(argArr, "--")
argArr = append(argArr, args.formatTargets()...)
cmd = exec.Command(argArr[0], argArr[1:]...)
cmd.Stdin, cmd.Stdout, cmd.Stderr = os.Stdin, os.Stdout, os.Stderr
err := cmd.Run()
return err
}
// passToMakepkg outsources execution to makepkg binary without modifications.
func passToMakepkg(dir string, args ...string) (err error) {
if config.NoConfirm {
args = append(args)
}
cmd := exec.Command(config.MakepkgBin, args...)
cmd.Stdin, cmd.Stdout, cmd.Stderr = os.Stdin, os.Stdout, os.Stderr
cmd.Dir = dir
err = cmd.Run()
if err == nil {
_ = saveVCSInfo()
}
return
}