Bump default buf version from v1.45.0 to v1.66.1

buf v1.45.0 does not support buf.yaml v2 config format, which is
used by canonical repos. Update to v1.66.1 across defaults, tests,
docs, and examples.

Author: daniel-garcia

.github/workflows/ci.yml

@@ -38,15 +38,15 @@ jobs:
         # Install buf
         if [[ "${{ runner.os }}" == "Windows" ]]; then
           mkdir -p "$HOME/bin"
-          curl -sSL "https://github.com/bufbuild/buf/releases/download/v1.45.0/buf-Windows-x86_64.exe" -o "$HOME/bin/buf.exe"
+          curl -sSL "https://github.com/bufbuild/buf/releases/download/v1.66.1/buf-Windows-x86_64.exe" -o "$HOME/bin/buf.exe"
           chmod +x "$HOME/bin/buf.exe"
           echo "$HOME/bin" >> $GITHUB_PATH
         elif [[ "${{ runner.os }}" == "macOS" ]]; then
-          curl -sSL "https://github.com/bufbuild/buf/releases/download/v1.45.0/buf-Darwin-arm64" -o /tmp/buf
+          curl -sSL "https://github.com/bufbuild/buf/releases/download/v1.66.1/buf-Darwin-arm64" -o /tmp/buf
           chmod +x /tmp/buf
           sudo mv /tmp/buf /usr/local/bin/buf
         else
-          curl -sSL "https://github.com/bufbuild/buf/releases/download/v1.45.0/buf-Linux-x86_64" -o /tmp/buf
+          curl -sSL "https://github.com/bufbuild/buf/releases/download/v1.66.1/buf-Linux-x86_64" -o /tmp/buf
           chmod +x /tmp/buf
           sudo mv /tmp/buf /usr/local/bin/buf
         fi
@@ -132,7 +132,7 @@ jobs:
     env:
       K3D_VERSION: v5.8.3
       KUBECTL_VERSION: v1.32.3
-      BUF_VERSION: v1.45.0
+      BUF_VERSION: v1.66.1
 
     steps:
     - uses: actions/checkout@v4

apx.example.yaml

@@ -66,7 +66,7 @@ release:
   ci_only: true
 tools:
   buf:
-    version: v1.45.0
+    version: v1.66.1
   oasdiff:
     version: v1.9.6
   spectral:

cmd/apx/apx.yaml

@@ -43,7 +43,7 @@ release:
   ci_only: true
 tools:
   buf:
-    version: v1.45.0
+    version: v1.66.1
   oasdiff:
     version: v1.9.6
   spectral:

docs/cli-reference/configuration.md

@@ -274,7 +274,7 @@ Pins specific versions of external tools used by APX.
 ```yaml
 tools:
   buf:
-    version: v1.45.0
+    version: v1.66.1
   oasdiff:
     version: v1.9.6
   spectral:
@@ -453,7 +453,7 @@ release:
 
 tools:
   buf:
-    version: v1.45.0
+    version: v1.66.1
   oasdiff:
     version: v1.9.6
   spectral:

docs/cli-reference/index.md

@@ -216,7 +216,7 @@ release:
   ci_only: true
 tools:
   buf:
-    version: v1.45.0
+    version: v1.66.1
 execution:
   mode: "local"
   container_image: ""

docs/troubleshooting/e2e-tests.md

@@ -119,7 +119,7 @@ exec: "buf": executable file not found in $PATH
 brew install bufbuild/buf/buf
 
 # Linux
-curl -sSL "https://github.com/bufbuild/buf/releases/download/v1.45.0/buf-Linux-x86_64" -o /tmp/buf
+curl -sSL "https://github.com/bufbuild/buf/releases/download/v1.66.1/buf-Linux-x86_64" -o /tmp/buf
 chmod +x /tmp/buf
 sudo mv /tmp/buf /usr/local/bin/buf
 ```

internal/config/schema.go

@@ -548,7 +548,7 @@ func DefaultConfig() *Config {
 		Tools: Tools{
 			Buf: struct {
 				Version string `yaml:"version"`
-			}{Version: "v1.45.0"},
+			}{Version: "v1.66.1"},
 			OASDiff: struct {
 				Version string `yaml:"version"`
 			}{Version: "v1.9.6"},

internal/config/validate_test.go

@@ -75,7 +75,7 @@ release:
   ci_only: true
 tools:
   buf:
-    version: v1.45.0
+    version: v1.66.1
   oasdiff:
     version: v1.9.6
   spectral:

internal/validator/download_test.go

@@ -23,14 +23,14 @@ func TestExpandPattern(t *testing.T) {
 	}{
 		{
 			pattern: "buf-{OS}-{ARCH}.tar.gz",
-			version: "v1.45.0",
+			version: "v1.66.1",
 			goos:    "linux",
 			goarch:  "amd64",
 			want:    "buf-Linux-x86_64.tar.gz",
 		},
 		{
 			pattern: "buf-{OS}-{ARCH}.tar.gz",
-			version: "v1.45.0",
+			version: "v1.66.1",
 			goos:    "darwin",
 			goarch:  "arm64",
 			want:    "buf-Darwin-aarch64.tar.gz",
@@ -53,8 +53,8 @@ func TestExpandPattern(t *testing.T) {
 }
 
 func TestCacheDir(t *testing.T) {
-	dir := cacheDir("buf", "v1.45.0")
-	require.Contains(t, dir, filepath.Join(".apx", "tools", "buf", "v1.45.0"))
+	dir := cacheDir("buf", "v1.66.1")
+	require.Contains(t, dir, filepath.Join(".apx", "tools", "buf", "v1.66.1"))
 }
 
 func TestExtractFromTarGz(t *testing.T) {
@@ -139,7 +139,7 @@ func TestResolveToolAutoDownload(t *testing.T) {
 	// This test verifies that ResolveTool falls through to auto-download.
 	// We use offline mode to test that it does NOT try downloading.
 	resolver := NewToolchainResolver(WithOfflineMode(true))
-	_, err := resolver.ResolveTool("buf", "v1.45.0")
+	_, err := resolver.ResolveTool("buf", "v1.66.1")
 	require.Error(t, err)
 	require.Contains(t, err.Error(), "tool not found")
 }

internal/validator/proto.go

@@ -22,7 +22,7 @@ func NewProtoValidator(resolver *ToolchainResolver) *ProtoValidator {
 
 // Lint runs buf lint on proto files
 func (v *ProtoValidator) Lint(path string) error {
-	bufPath, err := v.resolver.ResolveTool("buf", "v1.45.0")
+	bufPath, err := v.resolver.ResolveTool("buf", "v1.66.1")
 	if err != nil {
 		return fmt.Errorf("failed to resolve buf: %w", err)
 	}
@@ -44,7 +44,7 @@ func (v *ProtoValidator) Lint(path string) error {
 
 // Breaking runs buf breaking change detection
 func (v *ProtoValidator) Breaking(path, against string) error {
-	bufPath, err := v.resolver.ResolveTool("buf", "v1.45.0")
+	bufPath, err := v.resolver.ResolveTool("buf", "v1.66.1")
 	if err != nil {
 		return fmt.Errorf("failed to resolve buf: %w", err)
 	}