[config]Support config license header comment style.

.licenserc.yaml

@@ -80,6 +80,12 @@ header: # `header` section is configurations for source codes license header.
   # after all, a "header" cannot be TOO far from the file start.
   license-location-threshold: 80
 
+  language:
+    Go:
+      extensions:
+        - ".go"
+      comment_style_id: DoubleSlash
+
 dependency:
   files:
     - go.mod

pkg/comments/config.go

@@ -59,20 +59,7 @@ func init() {
 
 	initCommentStyles()
 
-	for _, lang := range languages {
-		for _, extension := range lang.Extensions {
-			if lang.CommentStyleID == "" {
-				continue
-			}
-			commentStyles[extension] = comments[lang.CommentStyleID]
-		}
-		for _, filename := range lang.Filenames {
-			if lang.CommentStyleID == "" {
-				continue
-			}
-			commentStyles[filename] = comments[lang.CommentStyleID]
-		}
-	}
+	initLanguageCommentStyles(languages)
 }
 
 func initLanguages() {
@@ -106,6 +93,26 @@ func initCommentStyles() {
 	}
 }
 
+func initLanguageCommentStyles(languages map[string]Language) {
+	if len(languages) == 0 {
+		return
+	}
+	for _, lang := range languages {
+		for _, extension := range lang.Extensions {
+			if lang.CommentStyleID == "" {
+				continue
+			}
+			commentStyles[extension] = comments[lang.CommentStyleID]
+		}
+		for _, filename := range lang.Filenames {
+			if lang.CommentStyleID == "" {
+				continue
+			}
+			commentStyles[filename] = comments[lang.CommentStyleID]
+		}
+	}
+}
+
 func FileCommentStyle(filename string) *CommentStyle {
 	for extension, style := range commentStyles {
 		if strings.HasSuffix(filename, extension) {
@@ -114,3 +121,7 @@ func FileCommentStyle(filename string) *CommentStyle {
 	}
 	return nil
 }
+
+func OverrideLanguageCommentStyle(languages map[string]Language) {
+	initLanguageCommentStyles(languages)
+}

pkg/header/config.go

@@ -28,6 +28,7 @@ import (
 
 	"github.com/apache/skywalking-eyes/assets"
 	"github.com/apache/skywalking-eyes/internal/logger"
+	"github.com/apache/skywalking-eyes/pkg/comments"
 	"github.com/apache/skywalking-eyes/pkg/license"
 
 	"github.com/bmatcuk/doublestar/v2"
@@ -59,7 +60,8 @@ type ConfigHeader struct {
 
 	// LicenseLocationThreshold specifies the index threshold where the license header can be located,
 	// after all, a "header" cannot be TOO far from the file start.
-	LicenseLocationThreshold int `yaml:"license-location-threshold"`
+	LicenseLocationThreshold int                          `yaml:"license-location-threshold"`
+	Languages                map[string]comments.Language `yaml:"language"`
 }
 
 // NormalizedLicense returns the normalized string of the license content,
@@ -104,6 +106,8 @@ func (config *ConfigHeader) Finalize() error {
 		config.Paths = []string{"**"}
 	}
 
+	comments.OverrideLanguageCommentStyle(config.Languages)
+
 	config.PathsIgnore = append(config.PathsIgnore, ".git", "**/*.txt")
 
 	if file, err := os.Open(".gitignore"); err == nil {

test/testdata/.licenserc_language_config_test.yaml

@@ -0,0 +1,110 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+header: # `header` section is configurations for source codes license header.
+  license:
+    spdx-id: Apache-2.0 # the spdx id of the license, it's convenient when your license is standard SPDX license.
+    copyright-owner: Apache Software Foundation # the copyright owner to replace the [owner] in the `spdx-id` template.
+    content: | # `license` will be used as the content when `fix` command needs to insert a license header.
+      Licensed to the Apache Software Foundation (ASF) under one
+      or more contributor license agreements.  See the NOTICE file
+      distributed with this work for additional information
+      regarding copyright ownership.  The ASF licenses this file
+      to you under the Apache License, Version 2.0 (the
+      "License"); you may not use this file except in compliance
+      with the License.  You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+      Unless required by applicable law or agreed to in writing,
+      software distributed under the License is distributed on an
+      "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+      KIND, either express or implied.  See the License for the
+      specific language governing permissions and limitations
+      under the License.
+
+    # `pattern` is optional regexp if all the file headers are the same as `license` or the license of `spdx-id` and `copyright-owner`.
+    pattern: |
+      Licensed to the Apache Software Foundation (ASF) under one
+      or more contributor license agreements.  See the NOTICE file
+      distributed with this work for additional information
+      regarding copyright ownership.  The ASF licenses this file
+      to you under the Apache License, Version 2.0 (the
+      "License"); you may not use this file except in compliance
+      with the License.  You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+      Unless required by applicable law or agreed to in writing,
+      software distributed under the License is distributed on an
+      "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+      KIND, either express or implied.  See the License for the
+      specific language governing permissions and limitations
+      under the License.
+
+  paths: # `paths` are the path list that will be checked (and fixed) by license-eye, default is ['**'].
+    - '**'
+
+  paths-ignore: # `paths-ignore` are the path list that will be ignored by license-eye.
+    - 'dist'
+    - 'licenses'
+    - '**/*.md'
+    - '**/testdata/**'
+    - '**/go.mod'
+    - '**/go.sum'
+    - 'LICENSE'
+    - 'NOTICE'
+    - '**/assets/header-templates/**'
+    - '**/assets/lcs-templates/**'
+    - '**/assets/languages.yaml'
+    - '**/assets/assets.gen.go'
+    - 'docs/**.svg'
+
+  comment: on-failure # on what condition license-eye will comment on the pull request, `on-failure`, `always`, `never`.
+
+  # license-location-threshold specifies the index threshold where the license header can be located,
+  # after all, a "header" cannot be TOO far from the file start.
+  license-location-threshold: 80
+
+  language:
+    Go:
+      extensions:
+        - ".go"
+      comment_style_id: SlashAsterisk
+    YAML:
+      extensions:
+        - ".yml"
+        - ".mir"
+        - ".reek"
+        - ".rviz"
+        - ".sublime-syntax"
+        - ".syntax"
+        - ".yaml"
+        - ".yaml-tmlanguage"
+        - ".yaml.sed"
+        - ".yml.mysql"
+      filenames:
+        - ".clang-format"
+        - ".clang-tidy"
+        - ".gemrc"
+        - glide.lock
+        - yarn.lock
+      comment_style_id: Hashtag
+
+dependency:
+  files:
+    - go.mod