[Contrib] Checkout a PR (go-gitea#6021)

Makefile

@@ -420,3 +420,7 @@ generate-images:
 					$(TMPDIR)/images/64.png $(TMPDIR)/images/128.png \
 					$(PWD)/public/img/favicon.ico
 	rm -rf $(TMPDIR)/images
+
+.PHONY: pr
+pr:
+	$(GO) run contrib/pr/checkout.go $(PR)

contrib/pr/checkout.go

@@ -0,0 +1,256 @@
+package main
+
+/*
+Checkout a PR and load the tests data into sqlite database
+*/
+
+import (
+	"flag"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"net/url"
+	"os"
+	"os/exec"
+	"os/user"
+	"path"
+	"path/filepath"
+	"runtime"
+	"time"
+
+	"code.gitea.io/gitea/modules/markup/external"
+	"code.gitea.io/gitea/routers"
+	"code.gitea.io/gitea/routers/routes"
+	"github.com/Unknwon/com"
+	"github.com/go-xorm/xorm"
+	context2 "github.com/gorilla/context"
+	"gopkg.in/src-d/go-git.v4"
+	"gopkg.in/src-d/go-git.v4/config"
+	"gopkg.in/src-d/go-git.v4/plumbing"
+	"gopkg.in/testfixtures.v2"
+
+	"code.gitea.io/gitea/models"
+	"code.gitea.io/gitea/modules/setting"
+)
+
+var codeFilePath = "contrib/pr/checkout.go"
+
+func runPR() {
+	log.Printf("[PR] Starting gitea ...\n")
+	curDir, err := os.Getwd()
+	if err != nil {
+		log.Fatal(err)
+	}
+	setting.NewContext()
+
+	setting.RepoRootPath, err = ioutil.TempDir(os.TempDir(), "repos")
+	if err != nil {
+		log.Fatalf("TempDir: %v\n", err)
+	}
+	setting.AppDataPath, err = ioutil.TempDir(os.TempDir(), "appdata")
+	if err != nil {
+		log.Fatalf("TempDir: %v\n", err)
+	}
+	setting.AppWorkPath = curDir
+	setting.StaticRootPath = curDir
+	setting.GravatarSourceURL, err = url.Parse("https://secure.gravatar.com/avatar/")
+	if err != nil {
+		log.Fatalf("url.Parse: %v\n", err)
+	}
+
+	setting.AppURL = "http://localhost:8080/"
+	setting.HTTPPort = "8080"
+	setting.SSH.Domain = "localhost"
+	setting.SSH.Port = 3000
+	setting.InstallLock = true
+	setting.SecretKey = "9pCviYTWSb"
+	setting.InternalToken = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJuYmYiOjE0OTI3OTU5ODN9.OQkH5UmzID2XBdwQ9TAI6Jj2t1X-wElVTjbE7aoN4I8"
+	curUser, err := user.Current()
+	if err != nil {
+		log.Fatal(err)
+	}
+	setting.RunUser = curUser.Username
+
+	log.Printf("[PR] Loading fixtures data ...\n")
+	setting.CheckLFSVersion()
+	//models.LoadConfigs()
+	/*
+		models.DbCfg.Type = "sqlite3"
+		models.DbCfg.Path = ":memory:"
+		models.DbCfg.Timeout = 500
+	*/
+	db := setting.Cfg.Section("database")
+	db.NewKey("DB_TYPE", "sqlite3")
+	db.NewKey("PATH", ":memory:")
+	setting.LogSQL = true
+	models.LoadConfigs()
+	routers.NewServices()
+	//x, err = xorm.NewEngine("sqlite3", "file::memory:?cache=shared")
+
+	var helper testfixtures.Helper
+	helper = &testfixtures.SQLite{}
+	models.NewEngine(func(_ *xorm.Engine) error {
+		return nil
+	})
+	models.HasEngine = true
+	//x.ShowSQL(true)
+	err = models.InitFixtures(
+		helper,
+		path.Join(curDir, "models/fixtures/"),
+	)
+	if err != nil {
+		fmt.Printf("Error initializing test database: %v\n", err)
+		os.Exit(1)
+	}
+	models.LoadFixtures()
+	os.RemoveAll(setting.RepoRootPath)
+	os.RemoveAll(models.LocalCopyPath())
+	os.RemoveAll(models.LocalWikiPath())
+	com.CopyDir(path.Join(curDir, "integrations/gitea-repositories-meta"), setting.RepoRootPath)
+
+	log.Printf("[PR] Setting up router\n")
+	//routers.GlobalInit()
+	external.RegisterParsers()
+	m := routes.NewMacaron()
+	routes.RegisterRoutes(m)
+
+	log.Printf("[PR] Ready for testing !\n")
+	log.Printf("[PR] Login with user1, user2, user3, ... with pass: password\n")
+	/*
+		log.Info("Listen: %v://%s%s", setting.Protocol, listenAddr, setting.AppSubURL)
+
+		if setting.LFS.StartServer {
+			log.Info("LFS server enabled")
+		}
+
+		if setting.EnablePprof {
+			go func() {
+				log.Info("Starting pprof server on localhost:6060")
+				log.Info("%v", http.ListenAndServe("localhost:6060", nil))
+			}()
+		}
+	*/
+
+	//Start the server
+	http.ListenAndServe(":8080", context2.ClearHandler(m))
+
+	log.Printf("[PR] Cleaning up ...\n")
+	/*
+		if err = os.RemoveAll(setting.Indexer.IssuePath); err != nil {
+			fmt.Printf("os.RemoveAll: %v\n", err)
+			os.Exit(1)
+		}
+		if err = os.RemoveAll(setting.Indexer.RepoPath); err != nil {
+			fmt.Printf("Unable to remove repo indexer: %v\n", err)
+			os.Exit(1)
+		}
+	*/
+	if err = os.RemoveAll(setting.RepoRootPath); err != nil {
+		log.Fatalf("os.RemoveAll: %v\n", err)
+	}
+	if err = os.RemoveAll(setting.AppDataPath); err != nil {
+		log.Fatalf("os.RemoveAll: %v\n", err)
+	}
+}
+
+func main() {
+	var runPRFlag = flag.Bool("run", false, "Run the PR code")
+	flag.Parse()
+	if *runPRFlag {
+		runPR()
+		return
+	}
+
+	//Otherwise checkout PR
+	if len(os.Args) != 2 {
+		log.Fatal("Need only one arg: the PR number")
+	}
+	pr := os.Args[1]
+
+	codeFilePath = filepath.FromSlash(codeFilePath) //Convert to running OS
+
+	//Copy this file if it will not exist in the PR branch
+	dat, err := ioutil.ReadFile(codeFilePath)
+	if err != nil {
+		log.Fatalf("Failed to cache this code file : %v", err)
+	}
+
+	repo, err := git.PlainOpen(".")
+	if err != nil {
+		log.Fatalf("Failed to open the repo : %v", err)
+	}
+
+	//Find remote upstream
+	remotes, err := repo.Remotes()
+	if err != nil {
+		log.Fatalf("Failed to list remotes of repo : %v", err)
+	}
+	remoteUpstream := "origin" //Default
+	for _, r := range remotes {
+		if r.Config().URLs[0] == "https://github.com/go-gitea/gitea" || r.Config().URLs[0] == "git@github.com:go-gitea/gitea.git" { //fetch at index 0
+			remoteUpstream = r.Config().Name
+			break
+		}
+	}
+
+	branch := fmt.Sprintf("pr-%s-%d", pr, time.Now().Unix())
+	branchRef := plumbing.NewBranchReferenceName(branch)
+
+	log.Printf("Fetching PR #%s in %s\n", pr, branch)
+	if runtime.GOOS == "windows" {
+		//Use git cli command for windows
+		runCmd("git", "fetch", "origin", fmt.Sprintf("pull/%s/head:%s", pr, branch))
+	} else {
+		ref := fmt.Sprintf("refs/pull/%s/head:%s", pr, branchRef)
+		err = repo.Fetch(&git.FetchOptions{
+			RemoteName: remoteUpstream,
+			RefSpecs: []config.RefSpec{
+				config.RefSpec(ref),
+			},
+		})
+		if err != nil {
+			log.Fatalf("Failed to fetch %s from %s : %v", ref, remoteUpstream, err)
+		}
+	}
+
+	tree, err := repo.Worktree()
+	if err != nil {
+		log.Fatalf("Failed to parse git tree : %v", err)
+	}
+	log.Printf("Checkout PR #%s in %s\n", pr, branch)
+	err = tree.Checkout(&git.CheckoutOptions{
+		Branch: branchRef,
+		//Force:  runtime.GOOS == "windows",
+	})
+	if err != nil {
+		log.Fatalf("Failed to checkout %s : %v", branch, err)
+	}
+
+	//Copy this file if not exist
+	if _, err := os.Stat(codeFilePath); os.IsNotExist(err) {
+		err = os.MkdirAll(filepath.Dir(codeFilePath), 0755)
+		if err != nil {
+			log.Fatalf("Failed to duplicate this code file in PR : %v", err)
+		}
+		err = ioutil.WriteFile(codeFilePath, dat, 0644)
+		if err != nil {
+			log.Fatalf("Failed to duplicate this code file in PR : %v", err)
+		}
+	}
+	time.Sleep(5 * time.Second)
+	//Start with integration test
+	runCmd("go", "run", "-tags", "sqlite sqlite_unlock_notify", codeFilePath, "-run")
+}
+func runCmd(cmd ...string) {
+	log.Printf("Executing : %s ...\n", cmd)
+	c := exec.Command(cmd[0], cmd[1:]...)
+	c.Stdout = os.Stdout
+	c.Stderr = os.Stderr
+	if err := c.Start(); err != nil {
+		log.Panicln(err)
+	}
+	if err := c.Wait(); err != nil {
+		log.Panicln(err)
+	}
+}