From 8c50ac4e53505a7a13db153af4df9edf63c012db Mon Sep 17 00:00:00 2001 From: Edward Moulsdale Date: Sat, 10 Aug 2024 13:26:00 +0100 Subject: [PATCH] Add a CI check to fail on change to an example without a new version Further to issue #3794, if any files change within an example - outside of a simple denylist - and the version in its Makefile is not updated, this new tool will fail the CI pipeline. --- build/includes/examples.mk | 5 + build/scripts/example-version-checker/go.mod | 29 ++ build/scripts/example-version-checker/go.sum | 145 ++++++++ build/scripts/example-version-checker/main.go | 329 ++++++++++++++++++ 4 files changed, 508 insertions(+) create mode 100644 build/scripts/example-version-checker/go.mod create mode 100644 build/scripts/example-version-checker/go.sum create mode 100644 build/scripts/example-version-checker/main.go diff --git a/build/includes/examples.mk b/build/includes/examples.mk index cd0fedf7f0..04923f3676 100644 --- a/build/includes/examples.mk +++ b/build/includes/examples.mk @@ -100,3 +100,8 @@ build-example-xonotic: build-example-custom-controller: $(MAKE) build-example EXAMPLE=custom-controller + +# ensure a version increase when an example changes +check-example-versions: ensure-build-image + docker run --rm $(common_mounts) --workdir=$(mount_path)/build/scripts/example-version-checker $(DOCKER_RUN_ARGS) $(build_tag) \ + go run main.go diff --git a/build/scripts/example-version-checker/go.mod b/build/scripts/example-version-checker/go.mod new file mode 100644 index 0000000000..43a5b6c254 --- /dev/null +++ b/build/scripts/example-version-checker/go.mod @@ -0,0 +1,29 @@ +module github.com/agones/agones/build/scripts/example-version-checker + +go 1.21 + +require github.com/go-git/go-git/v5 v5.12.0 + +require ( + dario.cat/mergo v1.0.0 // indirect + github.com/Microsoft/go-winio v0.6.1 // indirect + github.com/ProtonMail/go-crypto v1.0.0 // indirect + github.com/cloudflare/circl v1.3.7 // indirect + github.com/cyphar/filepath-securejoin v0.2.4 // indirect + github.com/emirpasic/gods v1.18.1 // indirect + github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 // indirect + github.com/go-git/go-billy/v5 v5.5.0 // indirect + github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect + github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 // indirect + github.com/kevinburke/ssh_config v1.2.0 // indirect + github.com/pjbgf/sha1cd v0.3.0 // indirect + github.com/sergi/go-diff v1.3.2-0.20230802210424-5b0b94c5c0d3 // indirect + github.com/skeema/knownhosts v1.2.2 // indirect + github.com/xanzy/ssh-agent v0.3.3 // indirect + golang.org/x/crypto v0.21.0 // indirect + golang.org/x/mod v0.12.0 // indirect + golang.org/x/net v0.22.0 // indirect + golang.org/x/sys v0.18.0 // indirect + golang.org/x/tools v0.13.0 // indirect + gopkg.in/warnings.v0 v0.1.2 // indirect +) diff --git a/build/scripts/example-version-checker/go.sum b/build/scripts/example-version-checker/go.sum new file mode 100644 index 0000000000..d7b845300d --- /dev/null +++ b/build/scripts/example-version-checker/go.sum @@ -0,0 +1,145 @@ +dario.cat/mergo v1.0.0 h1:AGCNq9Evsj31mOgNPcLyXc+4PNABt905YmuqPYYpBWk= +dario.cat/mergo v1.0.0/go.mod h1:uNxQE+84aUszobStD9th8a29P2fMDhsBdgRYvZOxGmk= +github.com/Microsoft/go-winio v0.5.2/go.mod h1:WpS1mjBmmwHBEWmogvA2mj8546UReBk4v8QkMxJ6pZY= +github.com/Microsoft/go-winio v0.6.1 h1:9/kr64B9VUZrLm5YYwbGtUJnMgqWVOdUAXu6Migciow= +github.com/Microsoft/go-winio v0.6.1/go.mod h1:LRdKpFKfdobln8UmuiYcKPot9D2v6svN5+sAH+4kjUM= +github.com/ProtonMail/go-crypto v1.0.0 h1:LRuvITjQWX+WIfr930YHG2HNfjR1uOfyf5vE0kC2U78= +github.com/ProtonMail/go-crypto v1.0.0/go.mod h1:EjAoLdwvbIOoOQr3ihjnSoLZRtE8azugULFRteWMNc0= +github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be h1:9AeTilPcZAjCFIImctFaOjnTIavg87rW78vTPkQqLI8= +github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be/go.mod h1:ySMOLuWl6zY27l47sB3qLNK6tF2fkHG55UZxx8oIVo4= +github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5 h1:0CwZNZbxp69SHPdPJAN/hZIm0C4OItdklCFmMRWYpio= +github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5/go.mod h1:wHh0iHkYZB8zMSxRWpUBQtwG5a7fFgvEO+odwuTv2gs= +github.com/bwesterb/go-ristretto v1.2.3/go.mod h1:fUIoIZaG73pV5biE2Blr2xEzDoMj7NFEuV9ekS419A0= +github.com/cloudflare/circl v1.3.3/go.mod h1:5XYMA4rFBvNIrhs50XuiBJ15vF2pZn4nnUKZrLbUZFA= +github.com/cloudflare/circl v1.3.7 h1:qlCDlTPz2n9fu58M0Nh1J/JzcFpfgkFHHX3O35r5vcU= +github.com/cloudflare/circl v1.3.7/go.mod h1:sRTcRWXGLrKw6yIGJ+l7amYJFfAXbZG0kBSc8r4zxgA= +github.com/cyphar/filepath-securejoin v0.2.4 h1:Ugdm7cg7i6ZK6x3xDF1oEu1nfkyfH53EtKeQYTC3kyg= +github.com/cyphar/filepath-securejoin v0.2.4/go.mod h1:aPGpWjXOXUn2NCNjFvBE6aRxGGx79pTxQpKOJNYHHl4= +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= +github.com/elazarl/goproxy v0.0.0-20230808193330-2592e75ae04a h1:mATvB/9r/3gvcejNsXKSkQ6lcIaNec2nyfOdlTBR2lU= +github.com/elazarl/goproxy v0.0.0-20230808193330-2592e75ae04a/go.mod h1:Ro8st/ElPeALwNFlcTpWmkr6IoMFfkjXAvTHpevnDsM= +github.com/emirpasic/gods v1.18.1 h1:FXtiHYKDGKCW2KzwZKx0iC0PQmdlorYgdFG9jPXJ1Bc= +github.com/emirpasic/gods v1.18.1/go.mod h1:8tpGGwCnJ5H4r6BWwaV6OrWmMoPhUl5jm/FMNAnJvWQ= +github.com/gliderlabs/ssh v0.3.7 h1:iV3Bqi942d9huXnzEF2Mt+CY9gLu8DNM4Obd+8bODRE= +github.com/gliderlabs/ssh v0.3.7/go.mod h1:zpHEXBstFnQYtGnB8k8kQLol82umzn/2/snG7alWVD8= +github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 h1:+zs/tPmkDkHx3U66DAb0lQFJrpS6731Oaa12ikc+DiI= +github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376/go.mod h1:an3vInlBmSxCcxctByoQdvwPiA7DTK7jaaFDBTtu0ic= +github.com/go-git/go-billy/v5 v5.5.0 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--- /dev/null +++ b/build/scripts/example-version-checker/main.go @@ -0,0 +1,329 @@ +package main + +import ( + "bufio" + "fmt" + "io" + "log" + "os" + "path/filepath" + "strings" + + "github.com/go-git/go-git/v5" + "github.com/go-git/go-git/v5/plumbing" + "github.com/go-git/go-git/v5/plumbing/object" +) + +const cloneDir = "tmp" +const rootDir = "../../../" +const examplesDir = "examples" +const gitUrl = "https://github.com/googleforgames/agones.git" +const targetBranch = "refs/heads/main" + +var exlcudedPatterns = [...]string{"*.md", "*.yaml", "OWNERS", ".gitignore"} + +func main() { + log.Println("Checking that modified examples have new versions.") + + local, remote := getCommits() + changed := getChangedFilenames(local, remote) + sameVersionNames := getSameVersionExampleNames(local, remote) + + failed := getFailedFiles(changed, sameVersionNames) + if len(failed) != 0 { + grouped := groupByExampleName(failed) + reportFailedFiles(grouped) + } + + log.Println() + log.Println("The check for version changes succeeded.") +} + +func getFailedFiles(filePaths []string, sameVersionNames []string) []string { + failed := make([]string, 0) + + for _, filePath := range filePaths { + if filenameInExamples(filePath, sameVersionNames) { + failed = append(failed, filePath) + } + } + + return failed +} + +func reportFailedFiles(groupedPaths map[string][]string) { + log.Println() + log.Println("The below examples were modified, without increasing the version in its Makefile.") + log.Println() + log.Println("examples/") + + for exampleName, filePaths := range groupedPaths { + log.Printf("\t%s/\n", exampleName) + for _, filePath := range filePaths { + log.Printf("\t\t%s\n", filePath) + } + } + + log.Println() + log.Fatal("The check for version changes failed. Please increment the above versions.") +} + +func groupByExampleName(filePaths []string) map[string][]string { + grouped := make(map[string][]string, 0) + + for _, filePath := range filePaths { + grouped = appendToGroup(grouped, filePath) + } + + return grouped +} + +func splitPath(filePath string) (string, string) { + trimmed, _ := strings.CutPrefix(filePath, fmt.Sprintf("%s/", examplesDir)) + split := strings.SplitN(trimmed, "/", 2) + + exampleName := split[0] + relative := split[1] + + return exampleName, relative +} + +func appendToGroup(grouped map[string][]string, filePath string) map[string][]string { + exampleName, relative := splitPath(filePath) + + val, ok := grouped[exampleName] + if ok { + val = append(val, relative) + } else { + val = []string{relative} + } + + grouped[exampleName] = val + + return grouped +} + +func getLocalRepo() *git.Repository { + repo, err := git.PlainOpen(rootDir) + if err != nil { + log.Fatalf("Failed to open local git repository: %v", err) + } + + return repo +} + +func getHeadCommit(repo *git.Repository) *object.Commit { + ref, err := repo.Reference(plumbing.HEAD, true) + if err != nil { + log.Fatalf("Failed to get HEAD reference: %v", err) + } + + commit, err := repo.CommitObject(ref.Hash()) + if err != nil { + log.Fatalf("Failed to get HEAD commit object: %v", err) + } + + return commit +} + +func getChangedFilenames(local *object.Commit, remote *object.Commit) []string { + changes := getChanges(local, remote) + exampleNames := getAllExampleNames() + + filenames := make([]string, 0) + for _, change := range changes { + filename := change.To.Name + if !filenameIsIrrelevant(filename, exampleNames) { + filenames = append(filenames, filename) + } + } + + return filenames +} + +func getCommits() (*object.Commit, *object.Commit) { + localRepo := getLocalRepo() + localCommit := getHeadCommit(localRepo) + + remoteRepo := cloneRemoteRepo() + remoteCommit := getHeadCommit(remoteRepo) + + return localCommit, remoteCommit +} + +func getChanges(local *object.Commit, remote *object.Commit) object.Changes { + localTree := getCommitTree(local) + remoteTree := getCommitTree(remote) + + changes, err := object.DiffTree(localTree, remoteTree) + if err != nil { + log.Fatalf("Failed to diff trees: %v", err) + } + + return changes +} + +func getCommitTree(commit *object.Commit) *object.Tree { + tree, err := commit.Tree() + if err != nil { + log.Fatalf("Failed to get tree: %v", err) + } + + return tree +} + +func exampleVersionChanged(exampleName string, local *object.Commit, remote *object.Commit) bool { + localVersion := getVersionFromCommit(exampleName, local) + remoteVersion := getVersionFromCommit(exampleName, remote) + + return localVersion != remoteVersion +} + +func getVersionFromCommit(exampleName string, commit *object.Commit) string { + filePath := fmt.Sprintf("%s/%s/Makefile", examplesDir, exampleName) + contents := getFileContents(commit, filePath) + + return getVersionFromMakefile(contents) +} + +func getFileContents(commit *object.Commit, filePath string) string { + tree := getCommitTree(commit) + + return getFileContentsFromTree(tree, filePath) +} + +func getFileContentsFromTree(tree *object.Tree, filePath string) string { + file, err := tree.File(filePath) + if err != nil { + log.Fatalf("Failed to get file in tree: %v", err) + } + + reader, err := file.Reader() + if err != nil { + log.Fatalf("Failed to get reader on file: %v", err) + } + defer reader.Close() + + content, err := io.ReadAll(reader) + if err != nil { + log.Fatalf("Failed to get file contents: %v", err) + } + + return string(content) +} + +func cloneRemoteRepo() *git.Repository { + os.RemoveAll(cloneDir) + cloneOptions := &git.CloneOptions{ + URL: gitUrl, + ReferenceName: targetBranch, + } + repo, err := git.PlainClone(cloneDir, false, cloneOptions) + if err != nil { + log.Fatalf("Failed to clone the upstream git repository: %v", err) + } + return repo +} + +func getSameVersionExampleNames(local *object.Commit, remote *object.Commit) []string { + exampleNames := getAllExampleNames() + + sameVersionNames := make([]string, 0) + for _, exampleName := range exampleNames { + if !exampleVersionChanged(exampleName, local, remote) { + sameVersionNames = append(sameVersionNames, exampleName) + } + } + + return sameVersionNames +} + +func dirIsExample(dirName string) bool { + makefileName := fmt.Sprintf("%s/Makefile", dirName) + if _, err := os.Stat(makefileName); err == nil { + return true + } else { + return false + } +} + +func getAllExampleNames() []string { + dirNames := make([]string, 0) + + baseDir := fmt.Sprintf("%s%s", rootDir, examplesDir) + + entries, err := os.ReadDir(baseDir) + if err != nil { + log.Fatalf("Could not open directory: %v", err) + } + + for _, entry := range entries { + name := entry.Name() + path := fmt.Sprintf("%s/%s", baseDir, entry.Name()) + if dirIsExample(path) { + dirNames = append(dirNames, name) + } + } + return dirNames +} + +func getVersionFromMakefile(contents string) string { + scanner := bufio.NewScanner(strings.NewReader(contents)) + for scanner.Scan() { + line := scanner.Text() + if lineContainsVersion(line) { + return getVersionFromLine(line) + } + } + + if err := scanner.Err(); err != nil { + log.Fatalf("Could not get version: %v", err) + } + + log.Fatal("No version string was found") + return "" +} + +func lineContainsVersion(line string) bool { + return strings.HasPrefix(line, "version") +} + +func getVersionFromLine(line string) string { + split := strings.SplitN(line, ":=", 2) + if len(split) != 2 { + log.Fatalf("Bad version line: %s", line) + } + trimmed := strings.TrimSpace(split[1]) + if trimmed == "" { + log.Fatal("Version can not be empty") + } + return trimmed +} + +func filenameIsIrrelevant(filename string, exampleNames []string) bool { + if !filenameInExamples(filename, exampleNames) { + return true + } + + for _, excludedName := range exlcudedPatterns { + matches, err := filepath.Match(excludedName, filename) + if err != nil { + log.Fatalf("Unknown error: %s", err) + } + + if matches { + return true + } + } + return false +} + +func filenameInExamples(filename string, exampleNames []string) bool { + for _, exampleName := range exampleNames { + path := fmt.Sprintf("%s/%s", examplesDir, exampleName) + if strings.HasPrefix(filename, path) { + return true + } + } + return false +}