Add protolint support to super-linter

.automation/test/protobuf/README.md

@@ -0,0 +1,19 @@
+# Protobuf Test Cases
+
+This folder holds the test cases for **Protobuf**.
+
+## Additional Docs
+
+No Additional information is needed for this test case.
+
+## Good Test Cases
+
+The test cases denoted: `LANGUAGE_good_FILE.EXTENSION` are all valid, and should pass successfully when linted.
+
+- **Note:** They are linted utilizing the default linter rules.
+
+## Bad Test Cases
+
+The test cases denoted: `LANGUAGE_bad_FILE.EXTENSION` are **NOT** valid, and should trigger errors when linted.
+
+- **Note:** They are linted utilizing the default linter rules.

.automation/test/protobuf/protobuf_bad_1.proto

@@ -0,0 +1,48 @@
+syntax = "proto3";
+// A broken example of the official reference
+// See https://developers.google.com/protocol-buffers/docs/reference/proto3-spec#proto_file
+package examplePb;
+
+option java_package = "com.example.foo";
+
+import "other.proto";
+import public "new.proto";
+
+import "google/protobuf/empty.proto";
+import "google/protobuf/timestamp.proto";
+
+import "myproject/other_protos.proto";
+import "myproject/main_protos.proto";
+
+enum enumAllowingAlias {
+    option allow_alias = true;
+    UNKNOWN = 0;
+    STARTED = 1;
+    RUNNING = 2 [(custom_option) = "hello world"];
+}
+message outer {
+    option (my_option).a = true;
+    // inner is an inner message.
+    message inner {   // Level 2
+      int64 ival = 1;
+    }
+    repeated inner inner_message = 2;
+    EnumAllowingAlias enum_field =3;
+    map<int32, string> my_map = 4;
+  string reason_for_error = 5;
+  string  end_of_support_version= 6;
+    message AccountForAdmin {}
+  message SpecialEndOfSupport {}
+  required inner inner_message = 7;
+  group Result = 8 {
+    string url = 9;
+  }
+  repeated group Result = 10 {
+  }
+  repeated inner paper = 11;
+  repeated group Regular = 12 {
+  }
+}
+service SearchApi {
+    rpc search (SearchRequest) returns (SearchResponse) {};
+};

.automation/test/protobuf/protobuf_good_1.proto

@@ -0,0 +1,18 @@
+syntax = "proto3";
+import public "other.proto";
+option java_package = "com.example.foo";
+enum EnumAllowingAlias {
+  option allow_alias = true;
+  ALLOWING_UNSPECIFIED = 0;
+  STARTED = 1;
+  RUNNING = 2 [(custom_option) = "hello world"];
+}
+message Outer {
+  option (my_option).a = true;
+  message Inner {   // Level 2
+    int64 ival = 1;
+  }
+  inner inner_message = 2;
+  EnumAllowingAlias enum_field =3;
+  map<int32, string> my_map = 4;
+}

.github/linters/.protolintrc.yml

@@ -0,0 +1,7 @@
+# Lint directives.
+lint:
+  # Linter rules.
+  # Run `protolint list` to see all available rules.
+  rules:
+    # Set the default to all linters.
+    all_default: false

Dockerfile

@@ -126,6 +126,14 @@ RUN wget -O- -nvq https://raw.githubusercontent.com/golangci/golangci-lint/maste
 RUN curl -Ls "$(curl -Ls https://api.github.com/repos/terraform-linters/tflint/releases/latest | grep -o -E "https://.+?_linux_amd64.zip")" -o tflint.zip && unzip tflint.zip && rm tflint.zip \
     && mv "tflint" /usr/bin/
 
+######################
+# Install protolint #
+######################
+RUN curl -LsS "$(curl -Ls https://api.github.com/repos/yoheimuta/protolint/releases/latest | grep -o -E "https://.+?_Linux_x86_64.tar.gz")" -o protolint.tar.gz \
+    && tar -xzf protolint.tar.gz \
+    && rm protolint.tar.gz \
+    && mv "protolint" /usr/bin/
+
 #########################
 # Install dotenv-linter #
 #########################
@@ -180,6 +188,7 @@ ENV GITHUB_SHA=${GITHUB_SHA} \
     VALIDATE_KOTLIN=${VALIDATE_KOTLIN} \
     VALIDATE_POWERSHELL=${VALIDATE_POWERSHELL} \
     VALIDATE_OPENAPI=${VALIDATE_OPENAPI} \
+    VALIDATE_PROTOBUF=${VALIDATE_PROTOBUF} \
     ANSIBLE_DIRECTORY=${ANSIBLE_DIRECTORY} \
     RUN_LOCAL=${RUN_LOCAL} \
     TEST_CASE_RUN=${TEST_CASE_RUN} \

README.md

@@ -56,6 +56,7 @@ Developers on **GitHub** can call the **GitHub Action** to lint their code base
 | **ENV**          | [dotenv-linter](https://github.com/dotenv-linter/dotenv-linter)          |
 | **Kotlin**       | [ktlint](https://github.com/pinterest/ktlint)                            |
 | **OpenAPI**      | [spectral](https://github.com/stoplightio/spectral)                      |
+| **Protocol Buffers** | [protolint](https://github.com/yoheimuta/protolint)                  |
 
 ## How to use
 To use this **GitHub** Action you will need to complete the following:
@@ -167,6 +168,7 @@ and won't run anything unexpected.
 | **VALIDATE_CLOJURE** | `true` | Flag to enable or disable the linting process of the language. |
 | **VALIDATE_KOTLIN** | `true` | Flag to enable or disable the linting process of the language. |
 | **VALIDATE_OPENAPI** | `true` | Flag to enable or disable the linting process of the language. |
+| **VALIDATE_PROTOBUF** | `true` | Flag to enable or disable the linting process of the language. |
 | **ANSIBLE_DIRECTORY** | `/ansible` | Flag to set the root directory for Ansible file location(s). |
 | **ACTIONS_RUNNER_DEBUG** | `false` | Flag to enable additional information about the linter, versions, and additional output. |
 | **DISABLE_ERRORS** | `false` | Flag to have the linter complete with exit code 0 even if errors were detected. |

TEMPLATES/.protolintrc.yml

@@ -0,0 +1,7 @@
+# Lint directives.
+lint:
+  # Linter rules.
+  # Run `protolint list` to see all available rules.
+  rules:
+    # Set the default to all linters.
+    all_default: false

docs/disabling-linters.md

@@ -25,6 +25,7 @@ Below are examples and documentation for each language and the various methods t
 - [ENV](#dotenv-linter)
 - [Kotlin](#kotlin)
 - [OpenAPI](#openapi)
+- [Protocol Buffers](#protocol-buffers)
 
 <!-- toc -->
 
@@ -632,6 +633,53 @@ import package.b.*
 
 --------------------------------------------------------------------------------
 
+## Protocol Buffers
+
+- [protolint](https://github.com/yoheimuta/protolint)
+
+### protolint Config file
+
+- `.github/linters/.protolintrc.yml`
+- You can add, extend, and disable rules
+- Documentation at [Rules](https://github.com/yoheimuta/protolint#rules) and [Configuring](https://github.com/yoheimuta/protolint#configuring)
+
+### protolint disable single line
+
+```protobuf
+enum Foo {
+  // protolint:disable:next ENUM_FIELD_NAMES_UPPER_SNAKE_CASE
+  firstValue = 0;
+  second_value = 1;  // protolint:disable:this ENUM_FIELD_NAMES_UPPER_SNAKE_CASE
+  THIRD_VALUE = 2;
+}
+```
+
+### protolint disable code block
+
+```protobuf
+// protolint:disable ENUM_FIELD_NAMES_UPPER_SNAKE_CASE
+enum Foo {
+  firstValue = 0;
+  second_value = 1;
+  THIRD_VALUE = 2;
+}
+// protolint:enable ENUM_FIELD_NAMES_UPPER_SNAKE_CASE
+```
+
+### protolint disable entire file
+
+- You can disable entire files with the `lint.files.exclude` property in `.protolintrc.yml`
+
+```yaml
+# Lint directives.
+lint:
+  # Linter files to walk.
+  files:
+    # The specific files to exclude.
+    exclude:
+      - path/to/file
+```
+
 ## Clojure
 - [clj-kondo](https://github.com/borkdude/clj-kondo)
 - Since clj-kondo approaches static analysis in a very Clojure way, it is advised to read the [configuration docs](https://github.com/borkdude/clj-kondo/blob/master/doc/config.md)

lib/linter.sh

@@ -57,6 +57,9 @@ CSS_LINTER_RULES="$DEFAULT_RULES_LOCATION/$CSS_FILE_NAME"           # Path to th
 # OpenAPI Vars
 OPENAPI_FILE_NAME='.openapirc.yml'                                   # Name of the file
 OPENAPI_LINTER_RULES="$DEFAULT_RULES_LOCATION/$OPENAPI_FILE_NAME"   # Path to the OpenAPI lint rules
+# Protocol Buffers Vars
+PROTOBUF_FILE_NAME='.protolintrc.yml'                                   # Name of the file
+PROTOBUF_LINTER_RULES="$DEFAULT_RULES_LOCATION/$PROTOBUF_FILE_NAME"   # Path to the Protocol Buffers lint rules
 # Clojure Vars
 CLOJURE_FILE_NAME='.clj-kondo/config.edn'
 CLOJURE_LINTER_RULES="$DEFAULT_RULES_LOCATION/$CLOJURE_FILE_NAME"
@@ -67,7 +70,7 @@ CLOJURE_LINTER_RULES="$DEFAULT_RULES_LOCATION/$CLOJURE_FILE_NAME"
 LINTER_ARRAY=("jsonlint" "yamllint" "xmllint" "markdownlint" "shellcheck"
   "pylint" "perl" "rubocop" "coffeelint" "eslint" "standard"
   "ansible-lint" "/dockerfilelint/bin/dockerfilelint" "golangci-lint" "tflint"
-  "stylelint" "dotenv-linter" "powershell" "ktlint" "clj-kondo" "spectral")
+  "stylelint" "dotenv-linter" "powershell" "ktlint" "protolint" "clj-kondo" "spectral")
 
 #############################
 # Language array for prints #
@@ -75,7 +78,7 @@ LINTER_ARRAY=("jsonlint" "yamllint" "xmllint" "markdownlint" "shellcheck"
 LANGUAGE_ARRAY=('YML' 'JSON' 'XML' 'MARKDOWN' 'BASH' 'PERL' 'PHP' 'RUBY' 'PYTHON'
   'COFFEESCRIPT' 'ANSIBLE' 'JAVASCRIPT_STANDARD' 'JAVASCRIPT_ES'
   'TYPESCRIPT_STANDARD' 'TYPESCRIPT_ES' 'DOCKER' 'GO' 'TERRAFORM'
-  'CSS' 'ENV' 'POWERSHELL' 'KOTLIN' 'CLOJURE' 'OPENAPI')
+  'CSS' 'ENV' 'POWERSHELL' 'KOTLIN' 'PROTO' 'CLOJURE' 'OPENAPI')
 
 ###################
 # GitHub ENV Vars #
@@ -159,6 +162,7 @@ FILE_ARRAY_CSS=()                   # Array of files to check
 FILE_ARRAY_ENV=()                   # Array of files to check
 FILE_ARRAY_CLOJURE=()               # Array of files to check
 FILE_ARRAY_KOTLIN=()                # Array of files to check
+FILE_ARRAY_PROTOBUF=()              # Array of files to check
 FILE_ARRAY_OPENAPI=()               # Array of files to check
 
 ############
@@ -187,6 +191,7 @@ ERRORS_FOUND_CSS=0                  # Count of errors found
 ERRORS_FOUND_ENV=0                  # Count of errors found
 ERRORS_FOUND_CLOJURE=0              # Count of errors found
 ERRORS_FOUND_KOTLIN=0               # Count of errors found
+ERRORS_FOUND_PROTOBUF=0             # Count of errors found
 ERRORS_FOUND_OPENAPI=0              # Count of errors found
 
 ################################################################################
@@ -806,6 +811,7 @@ GetValidationInfo()
   VALIDATE_ENV=$(echo "$VALIDATE_ENV" | awk '{print tolower($0)}')
   VALIDATE_CLOJURE=$(echo "$VALIDATE_CLOJURE" | awk '{print tolower($0)')
   VALIDATE_KOTLIN=$(echo "$VALIDATE_KOTLIN" | awk '{print tolower($0)}')
+  VALIDATE_PROTOBUF=$(echo "$VALIDATE_PROTOBUF" | awk '{print tolower($0)}')
   VALIDATE_OPENAPI=$(echo "$VALIDATE_OPENAPI" | awk '{print tolower($0)}')
 
   ################################################
@@ -834,6 +840,7 @@ GetValidationInfo()
         -n "$VALIDATE_CSS" || \
         -n "$VALIDATE_ENV" || \
         -n "$VALIDATE_CLOJURE" || \
+        -n "$VALIDATE_PROTOBUF" || \
         -n "$VALIDATE_OPENAPI" || \
         -n "$VALIDATE_KOTLIN" ]]; then
     ANY_SET="true"
@@ -1161,6 +1168,20 @@ GetValidationInfo()
     VALIDATE_OPENAPI="true"
   fi
 
+  #######################################
+  # Validate if we should check PROTOBUF #
+  #######################################
+  if [[ "$ANY_SET" == "true" ]]; then
+    # Some linter flags were set - only run those set to true
+    if [[ -z "$VALIDATE_PROTOBUF" ]]; then
+      # PROTOBUF flag was not set - default to false
+      VALIDATE_PROTOBUF="false"
+    fi
+  else
+    # No linter flags were set - default all to true
+    VALIDATE_PROTOBUF="true"
+  fi
+
   #######################################
   # Validate if we should check Clojure #
   #######################################
@@ -1298,6 +1319,11 @@ GetValidationInfo()
   else
     PRINT_ARRAY+=("- Excluding [OPENAPI] files in code base...")
   fi
+  if [[ "$VALIDATE_PROTOBUF" == "true" ]]; then
+    PRINT_ARRAY+=("- Validating [PROTOBUF] files in code base...")
+  else
+    PRINT_ARRAY+=("- Excluding [PROTOBUF] files in code base...")
+  fi
 
   ##############################
   # Validate Ansible Directory #
@@ -1686,6 +1712,18 @@ BuildFileList()
       # Set the READ_ONLY_CHANGE_FLAG since this could be exec #
       ##########################################################
       READ_ONLY_CHANGE_FLAG=1
+    ############################
+    # Get the Protocol Buffers files #
+    ############################
+    elif [ "$FILE_TYPE" == "proto" ]; then
+      ################################
+      # Append the file to the array #
+      ################################
+      FILE_ARRAY_PROTOBUF+=("$FILE")
+      ##########################################################
+      # Set the READ_ONLY_CHANGE_FLAG since this could be exec #
+      ##########################################################
+      READ_ONLY_CHANGE_FLAG=1
     elif [ "$FILE" == "Dockerfile" ]; then
       ################################
       # Append the file to the array #
@@ -2254,6 +2292,7 @@ Footer()
      [ "$ERRORS_FOUND_CSS" -ne 0 ] || \
      [ "$ERRORS_FOUND_ENV" -ne 0 ] || \
      [ "$ERRORS_FOUND_OPENAPI" -ne 0 ] || \
+     [ "$ERRORS_FOUND_PROTOBUF" -ne 0 ] || \
      [ "$ERRORS_FOUND_CLOJURE" -ne 0 ] || \
      [ "$ERRORS_FOUND_KOTLIN" -ne 0 ]; then
     # Failed exit
@@ -2318,6 +2357,7 @@ RunTestCases()
   TestCodebase "ENV" "dotenv-linter" "dotenv-linter" ".*\.\(env\)\$"
   TestCodebase "CLOJURE" "clj-kondo" "clj-kondo --config $CLOJURE_LINTER_RULES --lint" ".*\.\(clj\|cljs\|cljc\|edn\)\$"
   TestCodebase "KOTLIN" "ktlint" "ktlint" ".*\.\(kt\|kts\)\$"
+  TestCodebase "PROTOBUF" "protolint" "protolint lint --config_path $PROTOBUF_LINTER_RULES" ".*\.\(proto\)\$"
   TestCodebase "OPENAPI" "spectral" "spectral lint -r $OPENAPI_LINTER_RULES" ".*\.\(ymlopenapi\|jsonopenapi\)\$"
 
   #################
@@ -2664,6 +2704,17 @@ if [ "$VALIDATE_CLOJURE" == "true" ]; then
   LintCodebase "CLOJURE" "clj-kondo" "clj-kondo --config $CLOJURE_LINTER_RULES --lint" ".*\.\(clj\|cljs\|cljc\|edn\)\$" "${FILE_ARRAY_CLOJURE[@]}"
 fi
 
+##################
+# PROTOBUF LINTING #
+##################
+if [ "$VALIDATE_PROTOBUF" == "true" ]; then
+  #######################
+  # Lint the Protocol Buffers files #
+  #######################
+  # LintCodebase "FILE_TYPE" "LINTER_NAME" "LINTER_CMD" "FILE_TYPES_REGEX" "FILE_ARRAY"
+  LintCodebase "PROTOBUF" "protolint" "protolint lint --config_path $PROTOBUF_LINTER_RULES" ".*\.\(proto\)\$" "${FILE_ARRAY_PROTOBUF[@]}"
+fi
+
 ######################
 # POWERSHELL LINTING #
 ######################