|
| 1 | +package main |
| 2 | + |
| 3 | +import ( |
| 4 | + "bytes" |
| 5 | + "encoding/json" |
| 6 | + "fmt" |
| 7 | + "log" |
| 8 | + "net/http" |
| 9 | + "os" |
| 10 | + "os/exec" |
| 11 | + "path/filepath" |
| 12 | + "regexp" |
| 13 | + "strings" |
| 14 | +) |
| 15 | + |
| 16 | +func main() { |
| 17 | + if len(os.Args) < 3 { |
| 18 | + printUsage() |
| 19 | + os.Exit(1) |
| 20 | + } |
| 21 | + |
| 22 | + command, version := os.Args[1], os.Args[2] |
| 23 | + |
| 24 | + root, err := gitRoot() |
| 25 | + if err != nil { |
| 26 | + log.Fatalf("failed to get root directory: %s", err) |
| 27 | + } |
| 28 | + |
| 29 | + switch command { |
| 30 | + case "pr-1": |
| 31 | + if err := updateBuildImage(root, version); err != nil { |
| 32 | + log.Fatalf("failed to update build image version: %s", err) |
| 33 | + } |
| 34 | + case "pr-2": |
| 35 | + if err := updateGoModFiles(root, version); err != nil { |
| 36 | + log.Fatalf("failed to update go.mod files: %s", err) |
| 37 | + } |
| 38 | + if err := updateDockerFiles(root, version); err != nil { |
| 39 | + log.Fatalf("failed to update Dockerfiles: %s", err) |
| 40 | + } |
| 41 | + if err := bumpBuildImage(root); err != nil { |
| 42 | + log.Fatalf("failed to bump build image: %s", err) |
| 43 | + } |
| 44 | + |
| 45 | + default: |
| 46 | + printUsage() |
| 47 | + os.Exit(1) |
| 48 | + } |
| 49 | +} |
| 50 | + |
| 51 | +func printUsage() { |
| 52 | + fmt.Fprintf(os.Stderr, "usage: <pr-1|pr-2> <version>\n") |
| 53 | +} |
| 54 | + |
| 55 | +func gitRoot() (string, error) { |
| 56 | + cmd := exec.Command("git", "rev-parse", "--show-toplevel") |
| 57 | + var out bytes.Buffer |
| 58 | + cmd.Stdout = &out |
| 59 | + cmd.Stderr = &out |
| 60 | + |
| 61 | + err := cmd.Run() |
| 62 | + if err != nil { |
| 63 | + return "", fmt.Errorf("not a git repository: %v", err) |
| 64 | + } |
| 65 | + |
| 66 | + return strings.TrimSpace(out.String()), nil |
| 67 | +} |
| 68 | + |
| 69 | +func updateBuildImage(root string, version string) error { |
| 70 | + paths := []string{ |
| 71 | + ".github/workflows/create_build_image.yml", |
| 72 | + ".github/workflows/check-linux-build-image.yml", |
| 73 | + "tools/build-image/windows/Dockerfile", |
| 74 | + } |
| 75 | + |
| 76 | + for _, path := range paths { |
| 77 | + path = filepath.Join(root, path) |
| 78 | + content, err := os.ReadFile(path) |
| 79 | + if err != nil { |
| 80 | + return fmt.Errorf("failed to read file: %w", err) |
| 81 | + } |
| 82 | + |
| 83 | + if err := os.WriteFile(path, replaceDockerGoVersion(content, version), 0644); err != nil { |
| 84 | + return fmt.Errorf("failed to update file: %w", err) |
| 85 | + } |
| 86 | + |
| 87 | + } |
| 88 | + |
| 89 | + return nil |
| 90 | +} |
| 91 | + |
| 92 | +func updateGoModFiles(root, version string) error { |
| 93 | + paths, err := getPaths(root, "go.mod", "tools/generate-module-dependencies/testdata") |
| 94 | + if err != nil { |
| 95 | + return err |
| 96 | + } |
| 97 | + |
| 98 | + re := regexp.MustCompile(`(?m)^go 1\.\d+(\.\d+)?\s*$`) |
| 99 | + for _, path := range paths { |
| 100 | + content, err := os.ReadFile(path) |
| 101 | + if err != nil { |
| 102 | + return fmt.Errorf("read %s: %w", path, err) |
| 103 | + } |
| 104 | + |
| 105 | + newContent := re.ReplaceAllLiteral(content, []byte("go "+version+"\n")) |
| 106 | + |
| 107 | + if err := os.WriteFile(path, newContent, 0644); err != nil { |
| 108 | + return fmt.Errorf("write %s: %w", path, err) |
| 109 | + } |
| 110 | + } |
| 111 | + |
| 112 | + return nil |
| 113 | +} |
| 114 | + |
| 115 | +func updateDockerFiles(root, version string) error { |
| 116 | + paths, err := getPaths(root, "Dockerfile", "Dockerfile.windows", "tools/build-image") |
| 117 | + if err != nil { |
| 118 | + return err |
| 119 | + } |
| 120 | + |
| 121 | + for _, path := range paths { |
| 122 | + content, err := os.ReadFile(path) |
| 123 | + if err != nil { |
| 124 | + return fmt.Errorf("read %s: %w", path, err) |
| 125 | + } |
| 126 | + if err := os.WriteFile(path, replaceDockerGoVersion(content, version), 0644); err != nil { |
| 127 | + return fmt.Errorf("write %s: %w", path, err) |
| 128 | + } |
| 129 | + } |
| 130 | + |
| 131 | + return nil |
| 132 | +} |
| 133 | + |
| 134 | +func bumpBuildImage(root string) error { |
| 135 | + data, err := fetchBuildImageTags() |
| 136 | + if err != nil { |
| 137 | + return err |
| 138 | + } |
| 139 | + refs, err := buildImageRefsFromTags(data) |
| 140 | + if err != nil { |
| 141 | + return err |
| 142 | + } |
| 143 | + |
| 144 | + var paths = []string{ |
| 145 | + "Dockerfile", |
| 146 | + ".github/workflows/build.yml", |
| 147 | + ".github/workflows/release-publish-alloy-artifacts.yml", |
| 148 | + ".github/workflows/test_full.yml", |
| 149 | + ".github/workflows/publish-alloy-linux.yml", |
| 150 | + ".github/workflows/test_linux_system_packages.yml", |
| 151 | + } |
| 152 | + |
| 153 | + for _, relPath := range paths { |
| 154 | + path := filepath.Join(root, relPath) |
| 155 | + content, err := os.ReadFile(path) |
| 156 | + if err != nil { |
| 157 | + if os.IsNotExist(err) { |
| 158 | + continue |
| 159 | + } |
| 160 | + return fmt.Errorf("read %s: %w", relPath, err) |
| 161 | + } |
| 162 | + newContent := replaceBuildImageRefs(content, refs) |
| 163 | + if err := os.WriteFile(path, newContent, 0644); err != nil { |
| 164 | + return fmt.Errorf("write %s: %w", relPath, err) |
| 165 | + } |
| 166 | + } |
| 167 | + return nil |
| 168 | +} |
| 169 | + |
| 170 | +const dockerHubTagsURL = "https://hub.docker.com/v2/repositories/grafana/alloy-build-image/tags?page_size=2" |
| 171 | + |
| 172 | +type dockerTagsResponse struct { |
| 173 | + Results []dockerTag `json:"results"` |
| 174 | +} |
| 175 | + |
| 176 | +type dockerTag struct { |
| 177 | + Name string `json:"name"` |
| 178 | + Digest string `json:"digest"` |
| 179 | +} |
| 180 | + |
| 181 | +type buildImageRefs struct { |
| 182 | + Default string |
| 183 | + Boring string |
| 184 | + DefaultTag string |
| 185 | +} |
| 186 | + |
| 187 | +func fetchBuildImageTags() (*dockerTagsResponse, error) { |
| 188 | + resp, err := http.Get(dockerHubTagsURL) |
| 189 | + if err != nil { |
| 190 | + return nil, fmt.Errorf("fetch tags: %w", err) |
| 191 | + } |
| 192 | + defer resp.Body.Close() |
| 193 | + if resp.StatusCode != http.StatusOK { |
| 194 | + return nil, fmt.Errorf("fetch tags: %s", resp.Status) |
| 195 | + } |
| 196 | + var data dockerTagsResponse |
| 197 | + if err := json.NewDecoder(resp.Body).Decode(&data); err != nil { |
| 198 | + return nil, fmt.Errorf("decode tags: %w", err) |
| 199 | + } |
| 200 | + return &data, nil |
| 201 | +} |
| 202 | + |
| 203 | +// buildImageRefsFromTags assumes 2 tags: one default, one boringcrypto. |
| 204 | +func buildImageRefsFromTags(data *dockerTagsResponse) (*buildImageRefs, error) { |
| 205 | + if len(data.Results) != 2 { |
| 206 | + return nil, fmt.Errorf("expected 2 tags, got %d", len(data.Results)) |
| 207 | + } |
| 208 | + var defaultTag, boringTag *dockerTag |
| 209 | + for i := range data.Results { |
| 210 | + t := &data.Results[i] |
| 211 | + if strings.HasSuffix(t.Name, "-boringcrypto") { |
| 212 | + boringTag = t |
| 213 | + } else { |
| 214 | + defaultTag = t |
| 215 | + } |
| 216 | + } |
| 217 | + if defaultTag == nil || boringTag == nil { |
| 218 | + return nil, fmt.Errorf("expected one default and one boringcrypto tag") |
| 219 | + } |
| 220 | + return &buildImageRefs{ |
| 221 | + Default: "grafana/alloy-build-image:" + defaultTag.Name + "@" + defaultTag.Digest, |
| 222 | + Boring: "grafana/alloy-build-image:" + boringTag.Name + "@" + boringTag.Digest, |
| 223 | + DefaultTag: "grafana/alloy-build-image:" + defaultTag.Name, |
| 224 | + }, nil |
| 225 | +} |
| 226 | + |
| 227 | +var ( |
| 228 | + buildImageWithDigestRE = regexp.MustCompile(`grafana/alloy-build-image:v\d+\.\d+\.\d+@sha256:[a-f0-9]+`) |
| 229 | + buildImageBoringDigestRE = regexp.MustCompile(`grafana/alloy-build-image:v\d+\.\d+\.\d+-boringcrypto@sha256:[a-f0-9]+`) |
| 230 | + buildImageTagOnlyRE = regexp.MustCompile(`grafana/alloy-build-image:v\d+\.\d+\.\d+(\s|$)`) |
| 231 | +) |
| 232 | + |
| 233 | +func replaceBuildImageRefs(content []byte, refs *buildImageRefs) []byte { |
| 234 | + out := buildImageBoringDigestRE.ReplaceAllLiteral(content, []byte(refs.Boring)) |
| 235 | + out = buildImageWithDigestRE.ReplaceAllLiteral(out, []byte(refs.Default)) |
| 236 | + out = buildImageTagOnlyRE.ReplaceAll(out, []byte(refs.DefaultTag+"$1")) |
| 237 | + return out |
| 238 | +} |
| 239 | + |
| 240 | +func getPaths(root, pattern string, exclude ...string) ([]string, error) { |
| 241 | + var paths []string |
| 242 | + err := filepath.Walk(root, func(path string, info os.FileInfo, err error) error { |
| 243 | + if err != nil { |
| 244 | + return err |
| 245 | + } |
| 246 | + if info.IsDir() { |
| 247 | + if info.Name() == "vendor" { |
| 248 | + return filepath.SkipDir |
| 249 | + } |
| 250 | + return nil |
| 251 | + } |
| 252 | + |
| 253 | + if !strings.HasPrefix(info.Name(), pattern) { |
| 254 | + return nil |
| 255 | + } |
| 256 | + |
| 257 | + rel, err := filepath.Rel(root, path) |
| 258 | + if err != nil { |
| 259 | + return err |
| 260 | + } |
| 261 | + |
| 262 | + for _, ex := range exclude { |
| 263 | + if rel == ex || strings.HasPrefix(rel, ex+string(filepath.Separator)) { |
| 264 | + return nil |
| 265 | + } |
| 266 | + } |
| 267 | + |
| 268 | + paths = append(paths, path) |
| 269 | + return nil |
| 270 | + }) |
| 271 | + |
| 272 | + return paths, err |
| 273 | +} |
| 274 | + |
| 275 | +var dockerGoVersionRE = regexp.MustCompile(`golang:1\.\d+(\.\d+)?`) |
| 276 | + |
| 277 | +func replaceDockerGoVersion(content []byte, version string) []byte { |
| 278 | + out := dockerGoVersionRE.ReplaceAllLiteral(content, []byte("golang:"+version)) |
| 279 | + return out |
| 280 | +} |
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