pre-commit: add yamlfmt

.git-blame-ignore-revs

@@ -1,2 +1,5 @@
 # sort lines in regressionfiles.txt
 1c01a3f1750a1d8c7bb92527175ccc29e4bf961e
+
+# pre-commit: apply yamlfmt
+2ca4497ffaa7e478eedb2b9aea9e4f55a0bed5f7

.github/workflows/nix.yml

@@ -17,16 +17,16 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       # Install Nix on the runner
-      - uses: cachix/install-nix-action@fd24c48048070c1be9acd18c9d369a83f0fe94d7 # v31
+      - uses: cachix/install-nix-action@fd24c48048070c1be9acd18c9d369a83f0fe94d7  # v31
         with:
           nix_path: nixpkgs=channel:nixos-unstable
       # Pull from the cachix cache
-      - uses: cachix/cachix-action@0fc020193b5a1fa3ac4575aa3a7d3aa6a35435ad # v16
+      - uses: cachix/cachix-action@0fc020193b5a1fa3ac4575aa3a7d3aa6a35435ad  # v16
         with:
           name: cclib
           authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
       # Checkout of the current head in the working dir
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8  # v5
         with:
           persist-credentials: false
       - name: Check nix flake

.github/workflows/pre-commit.yml

@@ -15,11 +15,11 @@ jobs:
   pre-commit:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8  # v5
         with:
           persist-credentials: false
-      - uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6
+      - uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c  # v6
       - name: install dependencies for sorting regressionfiles.yaml
         run: |
           python -m pip install 'ruamel.yaml'
-      - uses: pre-commit/action@2c7b3805fd2a0fd8c1884dcaebf91fc102a13ecd # v3.0.1
+      - uses: pre-commit/action@2c7b3805fd2a0fd8c1884dcaebf91fc102a13ecd  # v3.0.1

.pre-commit-config.yaml

@@ -39,6 +39,10 @@ repos:
               ^Turbomole|
               ^XTB
           )
+  - repo: https://github.com/google/yamlfmt
+    rev: "v0.17.2"
+    hooks:
+      - id: yamlfmt
   - repo: local
     hooks:
       - id: sort-regressionfiles-yaml

.yamlfmt.yml

@@ -0,0 +1,34 @@
+---
+continue_on_error: false
+doublestar: false
+exclude: []
+extensions:
+  - yaml
+  - yml
+gitignore_excludes: false
+gitignore_path: .gitignore
+include: []
+line_ending: lf
+match_type: standard
+output_format: default
+regex_exclude: []
+formatter:
+  array_indent: 0
+  disable_alias_key_correction: false
+  disallow_anchors: false
+  drop_merge_tag: false
+  eof_newline: true
+  force_array_style: ""
+  include_document_start: true
+  indent: 2
+  indent_root_array: false
+  indentless_arrays: false
+  line_ending: lf
+  max_line_length: 0
+  pad_line_comments: 2
+  retain_line_breaks: false
+  retain_line_breaks_single: true
+  scan_folded_as_literal: false
+  strip_directives: false
+  trim_trailing_whitespace: true
+  type: basic