Adding scalafmt (#2053)

* Adding scalafmt

* add it

Co-authored-by: Jake Herbst <jherbst@rsglab.com>
Co-authored-by: Lukas Gravley <admiralawkbar@github.com>

.automation/test/scalafmt/README.md

@@ -0,0 +1,19 @@
+# Scala Test Cases
+
+This folder holds the test cases for **Scala**.
+
+## 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/scalafmt/scalafmt_bad_1.scala

@@ -0,0 +1,31 @@
+object a {
+  class a[
+   t1,
+   t2 // comment
+  ](a1: Int,
+    a2: Int // comment
+  )(
+    b1: String,
+    b2: String // comment
+  )(implicit
+    c1: SomeType1,
+    c2: SomeType2 // comment
+  ) {
+    def this(
+      a1: Int,
+      a2: Int // comment
+    )(
+      b1: String,
+      b2: String // comment
+    )(implicit
+      c1: SomeType1,
+      c2: SomeType2 // comment
+    ) = this(
+      a1,
+      a2 // comment
+    ) (
+      b1,
+      b2 // comment
+    )
+  }
+}

.automation/test/scalafmt/scalafmt_good_1.scala

@@ -0,0 +1,32 @@
+object a {
+  class a[
+      t1,
+      t2 // comment
+  ](
+      a1: Int,
+      a2: Int // comment
+  )(
+      b1: String,
+      b2: String // comment
+  )(implicit
+      c1: SomeType1,
+      c2: SomeType2 // comment
+  ) {
+    def this(
+        a1: Int,
+        a2: Int // comment
+    )(
+        b1: String,
+        b2: String // comment
+    )(implicit
+        c1: SomeType1,
+        c2: SomeType2 // comment
+    ) = this(
+      a1,
+      a2 // comment
+    )(
+      b1,
+      b2 // comment
+    )
+  }
+}

Dockerfile

@@ -23,6 +23,7 @@ FROM zricethezav/gitleaks:v7.6.1 as gitleaks
 FROM garethr/kubeval:0.15.0 as kubeval
 FROM ghcr.io/assignuser/lintr-lib:0.3.0 as lintr-lib
 FROM ghcr.io/awkbar-devops/clang-format:v1.0.2 as clang-format
+FROM scalameta/scalafmt:v2.7.5 as scalafmt
 
 ##################
 # Get base image #
@@ -253,6 +254,11 @@ COPY --from=clang-format /usr/bin/clang-format /usr/bin/
 ####################
 COPY --from=gitleaks /usr/bin/gitleaks /usr/bin/
 
+####################
+# Install scalafmt #
+####################
+COPY --from=scalafmt /bin/scalafmt /usr/bin/
+
 #################
 # Install Litnr #
 #################

Dockerfile-slim

@@ -29,6 +29,7 @@ FROM zricethezav/gitleaks:v7.6.1 as gitleaks
 FROM garethr/kubeval:0.15.0 as kubeval
 FROM ghcr.io/assignuser/lintr-lib:0.3.0 as lintr-lib
 FROM ghcr.io/awkbar-devops/clang-format:v1.0.2 as clang-format
+FROM scalameta/scalafmt:v2.7.5 as scalafmt
 
 ##################
 # Get base image #
@@ -191,6 +192,11 @@ COPY --from=clang-format /usr/bin/clang-format /usr/bin/
 ####################
 COPY --from=gitleaks /usr/bin/gitleaks /usr/bin/
 
+####################
+# Install scalafmt #
+####################
+COPY --from=scalafmt /bin/scalafmt /usr/bin/
+
 #################
 # Install Litnr #
 #################

README.md

@@ -91,6 +91,7 @@ Developers on **GitHub** can call the **GitHub Action** to lint their codebase w
 | **Raku**                         | [Raku](https://raku.org)                                                                                                                                                      |
 | **Ruby**                         | [RuboCop](https://github.com/rubocop-hq/rubocop)                                                                                                                              |
 | **Rust**                         | [Rustfmt](https://github.com/rust-lang/rustfmt) / [Clippy](https://github.com/rust-lang/rust-clippy)                                                                          |
+| **Scala**                        | [scalafmt](https://github.com/scalameta/scalafmt)                                                                                                                             |
 | **Secrets**                      | [GitLeaks](https://github.com/zricethezav/gitleaks)                                                                                                                           |
 | **Shell**                        | [Shellcheck](https://github.com/koalaman/shellcheck) / [executable bit check] / [shfmt](https://github.com/mvdan/sh)                                                          |
 | **Snakemake**                    | [snakefmt](https://github.com/snakemake/snakefmt/) / [snakemake --lint](https://snakemake.readthedocs.io/en/stable/snakefiles/writing_snakefiles.html#best-practices)         |
@@ -310,6 +311,7 @@ But if you wish to select or exclude specific linters, we give you full control
 | **RUBY_CONFIG_FILE**               | `.ruby-lint.yml`                | Filename for [rubocop configuration](https://docs.rubocop.org/rubocop/configuration.html) (ex: `.ruby-lint.yml`, `.rubocop.yml`)                                                                                     |
 | **SUPPRESS_FILE_TYPE_WARN**        | `false`                         | If set to `true`, will hide warning messages about files without their proper extensions. Default is `false`                                                                                                         |
 | **SUPPRESS_POSSUM**                | `false`                         | If set to `true`, will hide the ASCII possum at top of log output. Default is `false`                                                                                                                                |
+| **SCALAFMT_CONFIG_FILE**           | `.scalafmt.conf`                | Filename for [scalafmt configuration](https://scalameta.org/scalafmt/docs/configuration.html) (ex: `.scalafmt.conf`)                                                                                                 |
 | **SNAKEMAKE_SNAKEFMT_CONFIG_FILE** | `.snakefmt.toml`                | Filename for [Snakemake configuration](https://github.com/snakemake/snakefmt#configuration) (ex: `pyproject.toml`, `.snakefmt.toml`)                                                                                 |
 | **SSL_CERT_SECRET**                | `none`                          | SSL cert to add to the **Super-Linter** trust store. This is needed for users on `self-hosted` runners or need to inject the cert for security standards (ex. ${{ secrets.SSL_CERT }})                               |
 | **SQL_CONFIG_FILE**                | `.sql-config.json`              | Filename for [SQL-Lint configuration](https://sql-lint.readthedocs.io/en/latest/files/configuration.html) (ex: `sql-config.json` , `.config.json`)                                                                   |
@@ -375,6 +377,7 @@ But if you wish to select or exclude specific linters, we give you full control
 | **VALIDATE_RUST_2015**             | `true`                          | Flag to enable or disable the linting process of the Rust language. (edition: 2015)                                                                                                                                  |
 | **VALIDATE_RUST_2018**             | `true`                          | Flag to enable or disable the linting process of Rust language. (edition: 2018)                                                                                                                                      |
 | **VALIDATE_RUST_CLIPPY**           | `true`                          | Flag to enable or disable the clippy linting process of Rust language.                                                                                                                                               |
+| **VALIDATE_SCALAFMT_LINT**         | `true`                          | Flag to enable or disable the linting process of Scala language. (Utilizing: scalafmt --test)                                                                                                                        |
 | **VALIDATE_SHELL_SHFMT**           | `true`                          | Flag to enable or disable the linting process of Shell scripts. (Utilizing: shfmt)                                                                                                                                   |
 | **VALIDATE_SNAKEMAKE_LINT**        | `true`                          | Flag to enable or disable the linting process of Snakefiles. (Utilizing: snakemake --lint)                                                                                                                           |
 | **VALIDATE_SNAKEMAKE_SNAKEFMT**    | `true`                          | Flag to enable or disable the linting process of Snakefiles. (Utilizing: snakefmt)                                                                                                                                   |

lib/functions/buildFileList.sh

@@ -687,6 +687,15 @@ function BuildFileList() {
       ###############################################
       FILE_ARRAY_RUST_CLIPPY+=("${FILE}")
 
+    ###########################
+    # Get the SCALA files #
+    ###########################
+    elif [ "${FILE_TYPE}" == "scala" ] || [ "${BASE_FILE}" == "??????" ]; then
+      ################################
+      # Append the file to the array #
+      ################################
+      FILE_ARRAY_SCALAFMT+=("${FILE}")
+
     ###########################
     # Get the SNAKEMAKE files #
     ###########################

lib/linter.sh

@@ -162,6 +162,8 @@ R_FILE_NAME=".lintr"
 # shellcheck disable=SC2034  # Variable is referenced indirectly
 RUBY_FILE_NAME="${RUBY_CONFIG_FILE:-.ruby-lint.yml}"
 # shellcheck disable=SC2034  # Variable is referenced indirectly
+SCALAFMT_FILE_NAME="${SCALAFMT_CONFIG_FILE:-.scalafmt.conf}"
+# shellcheck disable=SC2034  # Variable is referenced indirectly
 SNAKEMAKE_SNAKEFMT_FILE_NAME="${SNAKEMAKE_SNAKEFMT_CONFIG_FILE:-.snakefmt.toml}"
 # shellcheck disable=SC2034  # Variable is referenced indirectly
 SUPPRESS_FILE_TYPE_WARN="${SUPPRESS_FILE_TYPE_WARN:-false}"
@@ -218,9 +220,9 @@ LANGUAGE_ARRAY=('ANSIBLE' 'ARM' 'BASH' 'BASH_EXEC' 'CLANG_FORMAT'
   'OPENAPI' 'PERL' 'PHP_BUILTIN' 'PHP_PHPCS' 'PHP_PHPSTAN' 'PHP_PSALM'
   'POWERSHELL' 'PROTOBUF' 'PYTHON_BLACK' 'PYTHON_PYLINT' 'PYTHON_FLAKE8'
   'PYTHON_ISORT' 'PYTHON_MYPY' 'R' 'RAKU' 'RUBY' 'RUST_2015' 'RUST_2018'
-  'RUST_CLIPPY' 'SHELL_SHFMT' 'SNAKEMAKE_LINT' 'SNAKEMAKE_SNAKEFMT' 'STATES'
+  'RUST_CLIPPY' 'SCALAFMT' 'SHELL_SHFMT' 'SNAKEMAKE_LINT' 'SNAKEMAKE_SNAKEFMT'
-  'SQL' 'SQLFLUFF' 'TEKTON' 'TERRAFORM_TFLINT' 'TERRAFORM_TERRASCAN' 'TERRAGRUNT'
+  'STATES' 'SQL' 'SQLFLUFF' 'TEKTON' 'TERRAFORM_TFLINT' 'TERRAFORM_TERRASCAN'
-  'TSX' 'TYPESCRIPT_ES' 'TYPESCRIPT_STANDARD' 'XML' 'YAML')
+  'TERRAGRUNT' 'TSX' 'TYPESCRIPT_ES' 'TYPESCRIPT_STANDARD' 'XML' 'YAML')
 
 ##############################
 # Linter command names array #
@@ -281,6 +283,7 @@ LINTER_NAMES_ARRAY['RUBY']="rubocop"
 LINTER_NAMES_ARRAY['RUST_2015']="rustfmt"
 LINTER_NAMES_ARRAY['RUST_2018']="rustfmt"
 LINTER_NAMES_ARRAY['RUST_CLIPPY']="clippy"
+LINTER_NAMES_ARRAY['SCALAFMT']="scalafmt"
 LINTER_NAMES_ARRAY['SHELL_SHFMT']="shfmt"
 LINTER_NAMES_ARRAY['SNAKEMAKE_LINT']="snakemake"
 LINTER_NAMES_ARRAY['SNAKEMAKE_SNAKEFMT']="snakefmt"
@@ -899,6 +902,7 @@ LINTER_COMMANDS_ARRAY['RUBY']="rubocop -c ${RUBY_LINTER_RULES} --force-exclusion
 LINTER_COMMANDS_ARRAY['RUST_2015']="rustfmt --check --edition 2015"
 LINTER_COMMANDS_ARRAY['RUST_2018']="rustfmt --check --edition 2018"
 LINTER_COMMANDS_ARRAY['RUST_CLIPPY']="clippy"
+LINTER_COMMANDS_ARRAY['SCALAFMT']="scalafmt --config ${SCALAFMT_LINTER_RULES} --test"
 LINTER_COMMANDS_ARRAY['SHELL_SHFMT']="shfmt -d"
 LINTER_COMMANDS_ARRAY['SNAKEMAKE_LINT']="snakemake --lint -s"
 LINTER_COMMANDS_ARRAY['SNAKEMAKE_SNAKEFMT']="snakefmt --config ${SNAKEMAKE_SNAKEFMT_LINTER_RULES} --check --compact-diff"

test/inspec/super-linter/controls/super_linter.rb

@@ -137,6 +137,7 @@ control "super-linter-installed-commands" do
     { linter_name: "raku", version_command: "raku --version | strings -n 8"},
     { linter_name: "rubocop"},
     { linter_name: "rustfmt"},
+    { linter_name: "scalafmt"},
     { linter_name: "shellcheck"},
     { linter_name: "shfmt"},
     { linter_name: "snakefmt"},
@@ -424,6 +425,7 @@ control "super-linter-validate-files" do
     "/action/lib/.automation/.python-black",
     "/action/lib/.automation/.python-lint",
     "/action/lib/.automation/.ruby-lint.yml",
+    "/action/lib/.automation/.scalafmt.conf",
     "/action/lib/.automation/.snakefmt.toml",
     "/action/lib/.automation/.sql-config.json",
     "/action/lib/.automation/.stylelintrc.json",