feat: migrate to go-git (#342)

* feat: migrate to go-git

Signed-off-by: Carlos Alexandro Becker <caarlos0@gmail.com>

* fix: fmt

Signed-off-by: Carlos Alexandro Becker <caarlos0@gmail.com>

go.mod

@@ -3,13 +3,18 @@ module github.com/getantibody/antibody
 require (
 	github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 // indirect
 	github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d // indirect
-	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/getantibody/folder v1.0.0
+	github.com/kr/text v0.2.0 // indirect
+	github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
+	github.com/sergi/go-diff v1.1.0 // indirect
 	github.com/stretchr/testify v1.5.1
 	golang.org/x/crypto v0.0.0-20200320181102-891825fb96df
+	golang.org/x/net v0.0.0-20200320220750-118fecf932d8 // indirect
 	golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a
-	golang.org/x/sys v0.0.0-20200212091648-12a6c2dcc1e4 // indirect
+	golang.org/x/sys v0.0.0-20200321134203-328b4cd54aae // indirect
 	gopkg.in/alecthomas/kingpin.v2 v2.2.6
+	gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f // indirect
+	gopkg.in/src-d/go-git.v4 v4.13.1
 )
 
 go 1.13

go.sum

@@ -1,51 +1,92 @@
+github.com/alcortesm/tgz v0.0.0-20161220082320-9c5fe88206d7/go.mod h1:6zEj6s6u/ghQa61ZWa/C2Aw3RkjiTBOix7dkqa1VLIs=
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 h1:JYp7IbQjafoB+tBA3gMyHYHrpOtNuDiK/uB5uXxq5wM=
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d h1:UQZhZ2O0vMHr2cI+DC1Mbh0TJxzA3RcLoMsFw+aXw7E=
 github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
+github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239/go.mod h1:2FmKhYUyUczH0OGQWaF5ceTx0UBShxjsH6f8oGKYe2c=
+github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5/go.mod h1:wHh0iHkYZB8zMSxRWpUBQtwG5a7fFgvEO+odwuTv2gs=
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 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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 github.com/getantibody/folder v1.0.0 h1:CFtD8CQ45Qyq0WyjT3zZ28KzfbrCuTBFmyIl3BVKAWo=
 github.com/getantibody/folder v1.0.0/go.mod h1:9Kd7ZFOzjDuqK8f5bqgdkr9yKk7pVWoiir7nVR18Drk=
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 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
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 golang.org/x/crypto v0.0.0-20200320181102-891825fb96df h1:lDWgvUvNnaTnNBc/dwOty86cFeKoKWbwy2wQj0gIxbU=
 golang.org/x/crypto v0.0.0-20200320181102-891825fb96df/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
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-golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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 golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a h1:WXEvlFVvvGxCJLG6REjsT03iWnKLEWinaScsxF2Vm2o=
 golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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 golang.org/x/sys v0.0.0-20190412213103-97732733099d h1:+R4KGOnez64A81RvjARKc4UT5/tI9ujCIVX+P5KiHuI=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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+gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI=
 gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

goreleaser.yml

@@ -32,8 +32,6 @@ brews:
   folder: Formula
   homepage: http://getantibody.github.io
   description: The fastest shell plugin manager
-  dependencies:
-    - git
 nfpms:
 -
   homepage: http://getantibody.github.io
@@ -43,5 +41,4 @@ nfpms:
   vendor: Antibody
   formats:
     - deb
-  dependencies:
-    - git
+    - rpm

project/git.go

@@ -1,19 +1,18 @@
 package project
 
 import (
+	"bytes"
 	"log"
 	"os"
-	"os/exec"
 	"path/filepath"
 	"strings"
 	"sync"
 
 	"github.com/getantibody/folder"
+	"gopkg.in/src-d/go-git.v4"
+	"gopkg.in/src-d/go-git.v4/plumbing"
 )
 
-// nolint: gochecknoglobals
-var gitCmdEnv = append(os.Environ(), "GIT_TERMINAL_PROMPT=0", "GIT_ASKPASS=0", "SSH_ASKPASS=0")
-
 type gitProject struct {
 	URL     string
 	Version string
@@ -24,16 +23,9 @@ type gitProject struct {
 // NewClonedGit is a git project that was already cloned, so, only Update
 // will work here.
 func NewClonedGit(home, folderName string) Project {
-	folderPath := filepath.Join(home, folderName)
-	version, err := branch(folderPath)
-	if err != nil {
-		version = "master"
-	}
-	url := folder.ToURL(folderName)
 	return gitProject{
-		folder:  folderPath,
-		Version: version,
-		URL:     url,
+		folder: filepath.Join(home, folderName),
+		URL:    folder.ToURL(folderName),
 	}
 }
 
@@ -72,11 +64,10 @@ func NewGit(cwd, line string) Project {
 	case strings.HasPrefix(repo, "git@github.com:"):
 		url = repo
 	}
-	folder := filepath.Join(cwd, folder.FromURL(url))
 	return gitProject{
 		Version: version,
 		URL:     url,
-		folder:  folder,
+		folder:  filepath.Join(cwd, folder.FromURL(url)),
 		inner:   inner,
 	}
 }
@@ -90,18 +81,17 @@ func (g gitProject) Download() error {
 	lock.Lock()
 	defer lock.Unlock()
 	if _, err := os.Stat(g.folder); os.IsNotExist(err) {
-		// #nosec
-		var cmd = exec.Command("git", "clone",
-			"--recursive",
-			"--depth", "1",
-			"-b", g.Version,
-			g.URL,
-			g.folder,
-		)
-		cmd.Env = gitCmdEnv
-
-		if bts, err := cmd.CombinedOutput(); err != nil {
-			log.Println("git clone failed for", g.URL, string(bts))
+		var w bytes.Buffer
+		if _, err := git.PlainClone(g.folder, false, &git.CloneOptions{
+			URL:               g.URL,
+			ReferenceName:     plumbing.NewBranchReferenceName(g.Version),
+			SingleBranch:      true,
+			NoCheckout:        false,
+			Depth:             1,
+			RecurseSubmodules: 1,
+			Progress:          &w,
+		}); err != nil {
+			log.Println("git clone failed for", g.URL, w.String())
 			return err
 		}
 	}
@@ -110,48 +100,51 @@ func (g gitProject) Download() error {
 
 func (g gitProject) Update() error {
 	log.Println("updating:", g.URL)
-	oldRev, err := commit(g.folder)
+
+	repo, err := git.PlainOpen(g.folder)
+	if err != nil {
+		return err
+	}
+
+	ref, err := repo.Head()
+	if err != nil {
+		panic(err)
+	}
+
+	oldRev, err := repo.ResolveRevision(plumbing.Revision(plumbing.HEAD))
 	if err != nil {
 		return err
 	}
-	// #nosec
-	cmd := exec.Command(
-		"git", "pull",
-		"--recurse-submodules",
-		"origin",
-		g.Version,
-	)
-	cmd.Env = gitCmdEnv
-
-	cmd.Dir = g.folder
-	if bts, err := cmd.CombinedOutput(); err != nil {
-		log.Println("git update failed for", g.folder, string(bts))
+
+	wt, err := repo.Worktree()
+	if err != nil {
 		return err
 	}
-	rev, err := commit(g.folder)
+
+	var w bytes.Buffer
+	if err := wt.Pull(&git.PullOptions{
+		RemoteName:        "origin",
+		ReferenceName:     ref.Name(),
+		SingleBranch:      true,
+		Depth:             1,
+		RecurseSubmodules: 1,
+		Progress:          &w,
+		Force:             true,
+	}); err != git.NoErrAlreadyUpToDate {
+		log.Println("git update failed for", g.folder, g.Version, w.String())
+		return err
+	}
+
+	rev, err := repo.ResolveRevision(plumbing.Revision(plumbing.HEAD))
 	if err != nil {
 		return err
 	}
-	if rev != oldRev {
+
+	if rev.String() != oldRev.String() {
 		log.Println("updated:", g.URL, oldRev, "->", rev)
 	}
-	return nil
-}
 
-func commit(folder string) (string, error) {
-	// #nosec
-	cmd := exec.Command("git", "rev-parse", "--short", "HEAD")
-	cmd.Dir = folder
-	rev, err := cmd.Output()
-	return strings.Replace(string(rev), "\n", "", -1), err
-}
-
-func branch(folder string) (string, error) {
-	// #nosec
-	cmd := exec.Command("git", "rev-parse", "--abbrev-ref", "HEAD")
-	cmd.Dir = folder
-	branch, err := cmd.Output()
-	return strings.Replace(string(branch), "\n", "", -1), err
+	return nil
 }
 
 func (g gitProject) Path() string {