Added -G --getpkgbuild. Resolves #6

README.md

@@ -26,6 +26,10 @@ Yay was created with a few objectives in mind and based on the design of yaourt
 
 ### Changelog
 
+#### 1.100
+- Added manpage
+- Added -G to get pkgbuild from the AUR or ABS.
+
 #### 1.91
 - `--downtop` has been replaced with `--bottomup` (as is logical)
 - `yay -Ssq` and `yay -Sqs` now displays AUR packages with less information

actions.go

@@ -29,7 +29,6 @@ func narrowSearch(aq aur.Query, pq pac.Query, narrow []string) (raq aur.Query, r
 		if match {
 			rpq = append(rpq, pr)
 		}
-
 	}
 
 	for _, ar := range aq {
@@ -354,3 +353,20 @@ func CleanDependencies(pkgs []string) error {
 
 	return err
 }
+
+// GetPkgbuild gets the pkgbuild of the package 'pkg' trying the ABS first and then the AUR trying the ABS first and then the AUR.
+func GetPkgbuild(pkg string) (err error) {
+	wd, err := os.Getwd()
+	if err != nil {
+		return
+	}
+	wd = wd + "/"
+
+	err = pac.GetPkgbuild(pkg, wd)
+	if err == nil {
+		return
+	}
+
+	err = aur.GetPkgbuild(pkg, wd)
+	return
+}

aur/aur.go

@@ -72,3 +72,19 @@ func Upgrade(flags []string) error {
 
 	return nil
 }
+
+// GetPkgbuild downloads pkgbuild from the AUR.
+func GetPkgbuild(pkgN string, dir string) (err error) {
+	aq, numaq, err := Info(pkgN)
+	if err != nil {
+		return err
+	}
+
+	if numaq == 0 {
+		return fmt.Errorf("no results")
+	}
+
+	fmt.Printf("\x1b[1;32m==>\x1b[1;33m %s \x1b[1;32mfound in AUR.\x1b[0m\n", pkgN)
+	util.DownloadAndUnpack(BaseURL+aq[0].URLPath, dir, false)
+	return
+}

aur/result.go

@@ -99,13 +99,13 @@ func (a *Result) Install(flags []string) (finalmdeps []string, err error) {
 	dir := util.BaseDir + a.PackageBase + "/"
 
 	if _, err = os.Stat(dir); os.IsNotExist(err) {
-		if err = a.setupWorkspace(); err != nil {
+		if err = util.DownloadAndUnpack(BaseURL+a.URLPath, util.BaseDir, false); err != nil {
 			return
 		}
 	} else {
 		if !util.ContinueTask("Directory exists. Clean Build?", "yY") {
 			os.RemoveAll(util.BaseDir + a.PackageBase)
-			if err = a.setupWorkspace(); err != nil {
+			if err = util.DownloadAndUnpack(BaseURL+a.URLPath, util.BaseDir, false); err != nil {
 				return
 			}
 		}
@@ -247,27 +247,3 @@ func RemoveMakeDeps(depS []string) (err error) {
 
 	return
 }
-
-func (a *Result) setupWorkspace() (err error) {
-	// No need to use filepath.separators because it won't run on inferior platforms
-	err = os.MkdirAll(util.BaseDir+"builds", 0755)
-	if err != nil {
-		fmt.Println(err)
-		return
-	}
-
-	tarLocation := util.BaseDir + a.PackageBase + ".tar.gz"
-	defer os.Remove(util.BaseDir + a.PackageBase + ".tar.gz")
-
-	err = downloadFile(tarLocation, BaseURL+a.URLPath)
-	if err != nil {
-		return
-	}
-
-	err = exec.Command(util.TarBin, "-xf", tarLocation, "-C", util.BaseDir).Run()
-	if err != nil {
-		return
-	}
-
-	return
-}

aur/utils.go

@@ -2,7 +2,6 @@ package aur
 
 import (
 	"encoding/json"
-	"io"
 	"net/http"
 	"os"
 )
@@ -29,23 +28,3 @@ func getJSON(url string, target interface{}) error {
 
 	return json.NewDecoder(r.Body).Decode(target)
 }
-
-func downloadFile(filepath string, url string) (err error) {
-	// Create the file
-	out, err := os.Create(filepath)
-	if err != nil {
-		return err
-	}
-	defer out.Close()
-
-	// Get the data
-	resp, err := http.Get(url)
-	if err != nil {
-		return err
-	}
-	defer resp.Body.Close()
-
-	// Writer the body to file
-	_, err = io.Copy(out, resp.Body)
-	return err
-}

cmd/yay/yay.go

@@ -22,8 +22,9 @@ func usage() {
     yay {-U --upgrade}  [options] <file(s)>
 
     New operations:
-    yay -Qstats   displays system information
+    yay -Qstats          displays system information
-    yay -Cd       remove unneeded dependencies
+    yay -Cd              remove unneeded dependencies
+    yay -G [package(s)]  get pkgbuild from ABS or AUR
 
     New options:
     --topdown     shows repository's packages first and then aur's
@@ -82,6 +83,13 @@ func main() {
 	switch op {
 	case "-Cd":
 		err = yay.CleanDependencies(pkgs)
+	case "-G":
+		for _, pkg := range pkgs {
+			err = yay.GetPkgbuild(pkg)
+			if err != nil {
+				fmt.Println(pkg+":", err)
+			}
+		}
 	case "-Qstats":
 		err = yay.LocalStatistics(version)
 	case "-Ss", "-Ssq", "-Sqs":

pacman/pacman.go

@@ -525,3 +525,35 @@ big:
 	}
 	return
 }
+
+// GetPkgbuild downloads pkgbuild from the ABS.
+func GetPkgbuild(pkgN string, path string) (err error) {
+	h, err := conf.CreateHandle()
+	defer h.Release()
+	if err != nil {
+		return
+	}
+
+	dbList, err := h.SyncDbs()
+	if err != nil {
+		return
+	}
+
+	for _, db := range dbList.Slice() {
+		pkg, err := db.PkgByName(pkgN)
+		if err == nil {
+			var url string
+			if db.Name() == "core" || db.Name() == "extra" {
+				url = "https://projects.archlinux.org/svntogit/packages.git/snapshot/packages/" + pkg.Name() + ".tar.gz"
+			} else if db.Name() == "community" {
+				url = "https://projects.archlinux.org/svntogit/community.git/snapshot/community-packages/" + pkg.Name() + ".tar.gz"
+			} else {
+				return fmt.Errorf("Not in standard repositories")
+			}
+			fmt.Printf("\x1b[1;32m==>\x1b[1;33m %s \x1b[1;32mfound in ABS.\x1b[0m\n", pkgN)
+			util.DownloadAndUnpack(url, path, true)
+			return nil
+		}
+	}
+	return fmt.Errorf("Package not found.")
+}

util/util.go

@@ -1,9 +1,16 @@
 package util
 
-import "fmt"
+import (
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"os/exec"
+	"strings"
+)
 
 // TarBin describes the default installation point of tar command.
-const TarBin string = "/usr/bin/tar"
+const TarBin string = "/usr/bin/bsdtar"
 
 // MakepkgBin describes the default installation point of makepkg command.
 const MakepkgBin string = "/usr/bin/makepkg"
@@ -57,3 +64,55 @@ func ContinueTask(s string, def string) (cont bool) {
 
 	return true
 }
+
+func downloadFile(path string, url string) (err error) {
+	// Create the file
+	out, err := os.Create(path)
+	if err != nil {
+		return err
+	}
+	defer out.Close()
+
+	// Get the data
+	resp, err := http.Get(url)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+
+	// Writer the body to file
+	_, err = io.Copy(out, resp.Body)
+	return err
+}
+
+// DownloadAndUnpack downloads url tgz and extracts to path.
+func DownloadAndUnpack(url string, path string, trim bool) (err error) {
+	err = os.MkdirAll(path, 0755)
+	if err != nil {
+		return
+	}
+
+	tokens := strings.Split(url, "/")
+	fileName := tokens[len(tokens)-1]
+
+	tarLocation := path + fileName
+	defer os.Remove(tarLocation)
+
+	err = downloadFile(tarLocation, url)
+	if err != nil {
+		return
+	}
+
+	if trim {
+		err = exec.Command("/bin/sh", "-c",
+			TarBin+" --strip-components 2 --include='*/"+fileName[:len(fileName)-7]+"/trunk/' -xf "+tarLocation+" -C "+path).Run()
+		os.Rename(path+"trunk", path+fileName[:len(fileName)-7]) // kurwa
+	} else {
+		err = exec.Command(TarBin, "-xf", tarLocation, "-C", path).Run()
+	}
+	if err != nil {
+		return
+	}
+
+	return
+}

yay.8

@@ -17,6 +17,11 @@ yay is a pacman wrapper with AUR support. It passes options to makepkg and pacma
 Remove uneeded dependencies\&.
 .RE
 .PP
+\fB\-G\fR
+.RS 4
+Downloads PKGBUILD from ABS or AUR.
+.RE
+.PP
 \fB\-Qstats\fR
 .RS 4
 Displays information about installed packages and system health. If there are orphaned or out-of-date packages, warnings will be displayed\&.