ENH: Add an fprettify configuration

.fprettify.rc

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+# Replace FORTRAN style relational operators with C-style
+# .e.g '.lt.' -> '<'
+enable-replacements=True
+c-relations=True
+
+# White space settings
+indent=4
+line-length=132
+strict-indent=True
+strip-comments=True
+whitespace-relational=True
+whitespace-logical=True
+whitespace-plusminus=True
+whitespace-multdiv=True
+whitespace-comma=True
+whitespace-intrinsics=True
+whitespace-print=False
+whitespace-type=False
+
+# Control whitespace around '::' declarations
+whitespace-decl=True
+enable-decl=True
+
+# Don't indent pre-processor statements
+disable-fypp=True
+
+# Modules don't need indentation
+disable-indent-mod=True

.github/workflows/pre_commit.yml

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+name: pre-commit
+
+on:
+  pull_request:
+  push:
+    branches: [main]
+
+jobs:
+  pre-commit:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - uses: actions/setup-python@v3
+      with:
+        python-version: '3.9'
+    - uses: pre-commit/action@v2.0.3

.pre-commit-config.yaml

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+repos:
+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v4.4.0
+  hooks:
+  - id: trailing-whitespace
+    exclude: ^(src)
+  - id: end-of-file-fixer
+  - id: check-yaml
+  - id: check-added-large-files
+- repo: https://github.com/pseewald/fprettify
+  rev: v0.3.7
+  hooks:
+  - id: fprettify
+    args: ["-c", ".fprettify.rc"]