Merge pull request #238 from github/PowershellSupport

Powershell support

.automation/test/powershell/README.md

@@ -0,0 +1,13 @@
+# PowerShell Test Cases
+This folder holds the test cases for **PowerShell**.  
+
+## 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/powershell/powershell_bad_1.ps1

@@ -0,0 +1,14 @@
+#Plaintext Parameters
+function BadFunction {
+    param(
+        [String]$Username = 'me',
+        [String]$Password = 'password'
+    )
+    $Username
+    $Password
+    $VariableThatIsNotUsedLater = '5'
+    try {
+        'Empty Catch Block' 
+    } catch {}
+}
+

.automation/test/powershell/powershell_bad_1.psd1

@@ -0,0 +1,3 @@
+@{
+    'Hello'='World
+}

.automation/test/powershell/powershell_bad_1.psm1

@@ -0,0 +1 @@
+Write-Output "hello world!

.automation/test/powershell/powershell_good_1.ps1

@@ -0,0 +1 @@
+Write-Output "hello world!"

.automation/test/powershell/powershell_good_1.psd1

@@ -0,0 +1,3 @@
+@{
+    'Hello'='World'
+}

.automation/test/powershell/powershell_good_1.psm1

@@ -0,0 +1 @@
+Write-Output "hello world!"

Dockerfile

@@ -27,7 +27,25 @@ RUN apk add --no-cache \
     libxml2-utils perl \
     ruby ruby-dev ruby-bundler ruby-rdoc make \
     py3-setuptools ansible-lint \
-    go
+    go \
+    ca-certificates less ncurses-terminfo-base \
+    krb5-libs libgcc libintl libssl1.1 libstdc++ \
+    tzdata userspace-rcu zlib icu-libs lttng-ust
+
+#########################################
+# Install Powershell + PSScriptAnalyzer #
+#########################################
+# Reference: https://docs.microsoft.com/en-us/powershell/scripting/install/installing-powershell-core-on-linux?view=powershell-7
+# Slightly modified to always retrieve latest stable Powershell version
+RUN mkdir -p /opt/microsoft/powershell/7 \
+    && curl -s https://api.github.com/repos/powershell/powershell/releases/latest \
+    | grep browser_download_url \
+    | grep linux-alpine-x64 \
+    | cut -d '"' -f 4 \
+    | xargs -n 1 wget -O - \
+    | tar -xzC /opt/microsoft/powershell/7 \
+    && ln -s /opt/microsoft/powershell/7/pwsh /usr/bin/pwsh \
+    && pwsh -c 'install-module psscriptanalyzer -force'
 
 #####################
 # Run Pip3 Installs #
@@ -82,7 +100,10 @@ RUN gem install rubocop:0.74.0 rubocop-rails rubocop-github:0.13.0
 
 # Need to fix the version as it installs 'rubocop:0.85.1' as a dep, and forces the default
 # We then need to promote the correct version, uninstall, and fix deps
-RUN sh -c 'gem install --default rubocop:0.74.0;  yes | gem uninstall rubocop:0.85.1 -a -x -I; gem install rubocop:0.74.0'
+RUN sh -c 'INCORRECT_VERSION=$(gem list rhc -e rubocop | grep rubocop | awk "{print $2}" | cut -d"(" -f2 | cut -d"," -f1); \
+  gem install --default rubocop:0.74.0; \
+  yes | gem uninstall rubocop:$INCORRECT_VERSION -a -x -I; \
+  gem install rubocop:0.74.0'
 
 ######################
 # Install shellcheck #
@@ -135,6 +156,7 @@ ENV GITHUB_SHA=${GITHUB_SHA} \
     VALIDATE_TERRAFORM=${VALIDATE_TERRAFORM} \
     VALIDATE_CSS=${VALIDATE_CSS} \
     VALIDATE_ENV=${VALIDATE_ENV} \
+    VALIDATE_POWERSHELL=${VALIDATE_POWERSHELL} \
     ANSIBLE_DIRECTORY=${ANSIBLE_DIRECTORY} \
     RUN_LOCAL=${RUN_LOCAL} \
     TEST_CASE_RUN=${TEST_CASE_RUN} \

README.md

@@ -34,6 +34,7 @@ Developers on **GitHub** can call the **GitHub Action** to lint their code base
 | **TypeScript**   | [eslint](https://eslint.org/) [standard js](https://standardjs.com/)     |
 | **XML**          | [LibXML](http://xmlsoft.org/)                                            |
 | **YAML**         | [YamlLint](https://github.com/adrienverge/yamllint)                      |
+| **PowerShell**   | [PSScriptAnalyzer](https://github.com/PowerShell/Psscriptanalyzer)       |
 | **ENV**          | [dotenv-linter](https://github.com/dotenv-linter/dotenv-linter)          |
 
 ## How to use
@@ -134,6 +135,7 @@ and won't run anything unexpected.
 | **VALIDATE_TYPESCRIPT_STANDARD** | `true` | Flag to enable or disable the linting process of the language. (Utilizing: standard) |
 | **VALIDATE_DOCKER** | `true` | Flag to enable or disable the linting process of the language. |
 | **VALIDATE_GO** | `true` | Flag to enable or disable the linting process of the language. |
+| **VALIDATE_POWERSHELL** | `true` | Flag to enable or disable the linting process of the language. |
 | **VALIDATE_TERRAFORM** | `true` | Flag to enable or disable the linting process of the language. |
 | **VALIDATE_CSS** | `true` | Flag to enable or disable the linting process of the language. |
 | **VALIDATE_ENV** | `true` | Flag to enable or disable the linting process of the language. |

TEMPLATES/.powershell-psscriptanalyzer.psd1

@@ -0,0 +1,18 @@
+#Documentation: https://github.com/PowerShell/PSScriptAnalyzer/blob/master/docs/markdown/Invoke-ScriptAnalyzer.md#-settings
+@{
+    #CustomRulePath='path\to\CustomRuleModule.psm1'
+    #RecurseCustomRulePath='path\of\customrules'
+    #Severity = @(
+    #    'Error'
+    #    'Warning'
+    #)
+    #IncludeDefaultRules=$true
+    #ExcludeRules = @(
+    #    'PSAvoidUsingWriteHost',
+    #    'MyCustomRuleName'
+    #)
+    #IncludeRules = @(
+    #    'PSAvoidUsingWriteHost',
+    #    'MyCustomRuleName'
+    #)
+}

lib/linter.sh

@@ -48,25 +48,28 @@ GO_LINTER_RULES="$DEFAULT_RULES_LOCATION/$GO_FILE_NAME"             # Path to th
 # Terraform Vars
 TERRAFORM_FILE_NAME='.tflint.hcl'                                        # Name of the file
 TERRAFORM_LINTER_RULES="$DEFAULT_RULES_LOCATION/$TERRAFORM_FILE_NAME"    # Path to the Terraform lint rules
+# Powershell Vars
+POWERSHELL_FILE_NAME='.powershell-psscriptanalyzer.psd1'                   # Name of the file
+POWERSHELL_LINTER_RULES="$DEFAULT_RULES_LOCATION/$POWERSHELL_FILE_NAME"    # Path to the Powershell lint rules
 # CSS Vars
 CSS_FILE_NAME='.stylelintrc.json'                                   # Name of the file
 CSS_LINTER_RULES="$DEFAULT_RULES_LOCATION/$CSS_FILE_NAME"           # Path to the CSS lint rules
 
-
 #######################################
 # Linter array for information prints #
 #######################################
 LINTER_ARRAY=("jsonlint" "yamllint" "xmllint" "markdownlint" "shellcheck"
   "pylint" "perl" "rubocop" "coffeelint" "eslint" "standard"
   "ansible-lint" "/dockerfilelint/bin/dockerfilelint" "golangci-lint" "tflint"
-  "stylelint" "dotenv-linter")
+  "stylelint" "dotenv-linter" "powershell")
 
 #############################
 # Language array for prints #
 #############################
 LANGUAGE_ARRAY=('YML' 'JSON' 'XML' 'MARKDOWN' 'BASH' 'PERL' 'RUBY' 'PYTHON'
   'COFFEESCRIPT' 'ANSIBLE' 'JAVASCRIPT_STANDARD' 'JAVASCRIPT_ES'
-  'TYPESCRIPT_STANDARD' 'TYPESCRIPT_ES' 'DOCKER' 'GO' 'TERRAFORM' 'CSS' "ENV")
+  'TYPESCRIPT_STANDARD' 'TYPESCRIPT_ES' 'DOCKER' 'GO' 'TERRAFORM' 'CSS'
+  'ENV' 'POWERSHELL')
 
 ###################
 # GitHub ENV Vars #
@@ -94,6 +97,7 @@ VALIDATE_TYPESCRIPT_STANDARD="${VALIDATE_TYPESCRIPT_STANDARD}"  # Boolean to val
 VALIDATE_DOCKER="${VALIDATE_DOCKER}"                  # Boolean to validate language
 VALIDATE_GO="${VALIDATE_GO}"                          # Boolean to validate language
 VALIDATE_TERRAFORM="${VALIDATE_TERRAFORM}"            # Boolean to validate language
+VALIDATE_POWERSHELL="${VALIDATE_POWERSHELL}"          # Boolean to validate language
 VALIDATE_CSS="${VALIDATE_CSS}"                        # Boolean to validate language
 VALIDATE_ENV="${VALIDATE_ENV}"                        # Boolean to validate language
 TEST_CASE_RUN="${TEST_CASE_RUN}"                      # Boolean to validate only test cases
@@ -138,6 +142,7 @@ FILE_ARRAY_TYPESCRIPT_STANDARD=()   # Array of files to check
 FILE_ARRAY_DOCKER=()                # Array of files to check
 FILE_ARRAY_GO=()                    # Array of files to check
 FILE_ARRAY_TERRAFORM=()             # Array of files to check
+FILE_ARRAY_POWERSHELL=()             # Array of files to check
 FILE_ARRAY_CSS=()                   # Array of files to check
 FILE_ARRAY_ENV=()                   # Array of files to check
 
@@ -161,6 +166,7 @@ ERRORS_FOUND_TYPESCRIPT_ES=0        # Count of errors found
 ERRORS_FOUND_DOCKER=0               # Count of errors found
 ERRORS_FOUND_GO=0                   # Count of errors found
 ERRORS_FOUND_TERRAFORM=0            # Count of errors found
+ERRORS_FOUND_POWERSHELL=0           # Count of errors found
 ERRORS_FOUND_CSS=0                  # Count of errors found
 ERRORS_FOUND_ENV=0                  # Count of errors found
 
@@ -739,6 +745,7 @@ GetValidationInfo()
   VALIDATE_DOCKER=$(echo "$VALIDATE_DOCKER" | awk '{print tolower($0)}')
   VALIDATE_GO=$(echo "$VALIDATE_GO" | awk '{print tolower($0)}')
   VALIDATE_TERRAFORM=$(echo "$VALIDATE_TERRAFORM" | awk '{print tolower($0)}')
+  VALIDATE_POWERSHELL=$(echo "$VALIDATE_POWERSHELL" | awk '{print tolower($0)}')
   VALIDATE_CSS=$(echo "$VALIDATE_CSS" | awk '{print tolower($0)}')
   VALIDATE_ENV=$(echo "$VALIDATE_ENV" | awk '{print tolower($0)}')
 
@@ -763,6 +770,7 @@ GetValidationInfo()
         -n "$VALIDATE_DOCKER" || \
         -n "$VALIDATE_GO" || \
         -n "$VALIDATE_TERRAFORM" || \
+        -n "$VALIDATE_POWERSHELL" || \
         -n "$VALIDATE_CSS" || \
         -n "$VALIDATE_ENV" ]]; then
     ANY_SET="true"
@@ -1006,6 +1014,20 @@ GetValidationInfo()
     VALIDATE_TERRAFORM="true"
   fi
 
+  #########################################
+  # Validate if we should check POWERSHELL #
+  #########################################
+  if [[ "$ANY_SET" == "true" ]]; then
+    # Some linter flags were set - only run those set to true
+    if [[ -z "$VALIDATE_POWERSHELL" ]]; then
+      # POWERSHELL flag was not set - default to false
+      VALIDATE_POWERSHELL="false"
+    fi
+  else
+    # No linter flags were set - default all to true
+    VALIDATE_POWERSHELL="true"
+  fi
+
   ###################################
   # Validate if we should check CSS #
   ###################################
@@ -1122,6 +1144,11 @@ GetValidationInfo()
   else
     PRINT_ARRAY+=("- Excluding [TERRAFORM] files in code base...")
   fi
+  if [[ "$VALIDATE_POWERSHELL" == "true" ]]; then
+    PRINT_ARRAY+=("- Validating [POWERSHELL] files in code base...")
+  else
+    PRINT_ARRAY+=("- Excluding [POWERSHELL] files in code base...")
+  fi
   if [[ "$VALIDATE_CSS" == "true" ]]; then
     PRINT_ARRAY+=("- Validating [CSS] files in code base...")
   else
@@ -1461,6 +1488,14 @@ BuildFileList()
       # Set the READ_ONLY_CHANGE_FLAG since this could be exec #
       ##########################################################
       READ_ONLY_CHANGE_FLAG=1
+    ###########################
+    # Get the Powershell files #
+    ###########################
+    elif [ "$FILE_TYPE" == "ps1" ]; then
+      ################################
+      # Append the file to the array #
+      ################################
+      FILE_ARRAY_POWERSHELL+=("$FILE")
     elif [ "$FILE_TYPE" == "css" ]; then
       ################################
       # Append the file to the array #
@@ -1704,10 +1739,26 @@ LintCodebase()
       echo "---------------------------"
       echo "File:[$FILE]"
 
+      ####################
+      # Set the base Var #
+      ####################
+      LINT_CMD=''
+
+      #######################################
+      # Corner case for Powershell subshell #
+      #######################################
+      if [[ "$FILE_TYPE" == "POWERSHELL" ]]; then
+        ################################
+        # Lint the file with the rules #
+        ################################
+        # Need to append "'" to make the pwsh call syntax correct, also exit with exit code from inner subshell
+        LINT_CMD=$(cd "$GITHUB_WORKSPACE/$TEST_CASE_FOLDER" || exit; $LINTER_COMMAND "$FILE"; exit $? 2>&1)
+      else
         ################################
         # Lint the file with the rules #
         ################################
         LINT_CMD=$(cd "$GITHUB_WORKSPACE" || exit; $LINTER_COMMAND "$FILE" 2>&1)
+      fi
 
       #######################
       # Load the error code #
@@ -1874,6 +1925,12 @@ TestCodebase()
       # Lint the file with the rules #
       ################################
       LINT_CMD=$(cd "$GITHUB_WORKSPACE/$TEST_CASE_FOLDER/ansible" || exit; $LINTER_COMMAND "$FILE" 2>&1)
+    elif [[ "$FILE_TYPE" == "POWERSHELL" ]]; then
+      ################################
+      # Lint the file with the rules #
+      ################################
+      # Need to append "'" to make the pwsh call syntax correct, also exit with exit code from inner subshell
+      LINT_CMD=$(cd "$GITHUB_WORKSPACE/$TEST_CASE_FOLDER" || exit; $LINTER_COMMAND "$FILE"; exit $? 2>&1)
     else
       ################################
       # Lint the file with the rules #
@@ -1990,6 +2047,7 @@ Footer()
      [ "$ERRORS_FOUND_DOCKER" -ne 0 ] || \
      [ "$ERRORS_FOUND_GO" -ne 0 ] || \
      [ "$ERRORS_FOUND_TERRAFORM" -ne 0 ] || \
+     [ "$ERRORS_FOUND_POWERSHELL" -ne 0 ] || \
      [ "$ERRORS_FOUND_RUBY" -ne 0 ] || \
      [ "$ERRORS_FOUND_CSS" -ne 0 ] || \
      [ "$ERRORS_FOUND_ENV" -ne 0 ]; then
@@ -2049,6 +2107,7 @@ RunTestCases()
   TestCodebase "DOCKER" "/dockerfilelint/bin/dockerfilelint" "/dockerfilelint/bin/dockerfilelint" ".*\(Dockerfile\)\$"
   TestCodebase "ANSIBLE" "ansible-lint" "ansible-lint -v -c $ANSIBLE_LINTER_RULES" "ansible-lint"
   TestCodebase "TERRAFORM" "tflint" "tflint -c $TERRAFORM_LINTER_RULES" ".*\.\(tf\)\$"
+  TestCodebase "POWERSHELL" "pwsh" "pwsh -c Invoke-ScriptAnalyzer -EnableExit -Settings $POWERSHELL_LINTER_RULES -Path" ".*\.\(ps1\|psm1\|psd1\|ps1xml\|pssc\|psrc\|cdxml\)\$"
   TestCodebase "CSS" "stylelint" "stylelint --config $CSS_LINTER_RULES" ".*\.\(css\)\$"
   TestCodebase "ENV" "dotenv-linter" "dotenv-linter" ".*\.\(env\)\$"
 
@@ -2105,6 +2164,8 @@ GetLinterRules "$GO_FILE_NAME" "$GO_LINTER_RULES"
 GetLinterRules "$DOCKER_FILE_NAME" "$DOCKER_LINTER_RULES"
 # Get Terraform rules
 GetLinterRules "$TERRAFORM_FILE_NAME" "$TERRAFORM_LINTER_RULES"
+# Get PowerShell rules
+GetLinterRules "$POWERSHELL_FILE_NAME" "$POWERSHELL_LINTER_RULES"
 # Get CSS rules
 GetLinterRules "$CSS_FILE_NAME" "$CSS_LINTER_RULES"
 
@@ -2358,6 +2419,17 @@ if [ "$VALIDATE_DOCKER" == "true" ]; then
   LintCodebase "DOCKER" "/dockerfilelint/bin/dockerfilelint" "/dockerfilelint/bin/dockerfilelint" ".*\(Dockerfile\)\$" "${FILE_ARRAY_DOCKER[@]}"
 fi
 
+######################
+# POWERSHELL LINTING #
+######################
+if [ "$VALIDATE_POWERSHELL" == "true" ]; then
+  #############################
+  # Lint the powershell files #
+  #############################
+  # LintCodebase "FILE_TYPE" "LINTER_NAME" "LINTER_CMD" "FILE_TYPES_REGEX" "FILE_ARRAY"
+  LintCodebase "POWERSHELL" "pwsh" "pwsh -c Invoke-ScriptAnalyzer -EnableExit -Settings $POWERSHELL_LINTER_RULES -Path" ".*\.\(ps1\|psm1\|psd1\|ps1xml\|pssc\|psrc\|cdxml\)\$" "${FILE_ARRAY_POWERSHELL[@]}"
+fi
+
 ##########
 # Footer #
 ##########