github action: add a check that uudoc works

Author: sylvestre

.github/workflows/documentation.yml

@@ -0,0 +1,136 @@
+# spell-checker:ignore dtolnay libsystemd libattr libcap gsub
+
+name: Check uudoc Documentation Generation
+
+on:
+  pull_request:
+    paths:
+      - 'src/bin/uudoc.rs'
+      - 'src/uu/*/locales/en-US.ftl'
+      - 'Cargo.toml'
+      - '.github/workflows/documentation.yml'
+  push:
+    branches:
+      - main
+    paths:
+      - 'src/bin/uudoc.rs'
+      - 'src/uu/*/locales/en-US.ftl'
+      - 'Cargo.toml'
+
+jobs:
+  check-doc:
+    name: Verify uudoc generates correct documentation
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Install/setup prerequisites
+        shell: bash
+        run: sudo apt-get -y update ; sudo apt-get -y install libselinux1-dev libsystemd-dev libacl1-dev libattr1-dev libcap-dev
+
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Download tldr
+        run: curl https://tldr.sh/assets/tldr.zip -o docs/tldr.zip
+
+      - name: Generate documentation
+        run: cargo run --bin uudoc --all-features
+
+      - name: Get current version from Cargo.toml
+        id: version
+        run: |
+          VERSION=$(awk '/\[workspace\.package\]/{flag=1; next} flag && /version = /{gsub(/.*= "/, ""); gsub(/".*/, ""); print; exit}' Cargo.toml)
+          echo "version=$VERSION" >> $GITHUB_OUTPUT
+          echo "Detected version: $VERSION"
+
+      - name: Check for --repeated option in uniq.md
+        run: |
+          if [ ! -f "docs/src/utils/uniq.md" ]; then
+            echo "docs/src/utils/uniq.md does not exist"
+            exit 1
+          fi
+
+          if ! grep -q -- "--repeated" docs/src/utils/uniq.md; then
+            echo "'--repeated' option not found in docs/src/utils/uniq.md"
+            echo "Content of uniq.md:"
+            head -50 docs/src/utils/uniq.md
+            exit 1
+          fi
+
+      - name: Check for correct version in ls.md
+        run: |
+          VERSION="${{ steps.version.outputs.version }}"
+
+          if [ ! -f "docs/src/utils/ls.md" ]; then
+            echo "docs/src/utils/ls.md does not exist"
+            exit 1
+          fi
+
+          if ! grep -q "v(uutils coreutils) $VERSION" docs/src/utils/ls.md; then
+            echo "Version '$VERSION' not found in docs/src/utils/ls.md"
+            echo "Found version info:"
+            grep "v(uutils coreutils)" docs/src/utils/ls.md || echo "No version info found"
+            echo "Full version section:"
+            grep -A2 -B2 "version" docs/src/utils/ls.md || echo "No version section found"
+            exit 1
+          fi
+
+      - name: Verify usage information is present
+        run: |
+          if [ ! -f "docs/src/utils/cat.md" ]; then
+            echo "docs/src/utils/cat.md does not exist"
+            exit 1
+          fi
+
+          if ! grep -q "cat \[OPTION\].*\[FILE\]" docs/src/utils/cat.md; then
+            echo "Usage information missing from cat.md"
+            echo "Content around usage:"
+            grep -A5 -B5 "cat" docs/src/utils/cat.md | head -20
+            exit 1
+          fi
+
+      - name: Verify help text is properly resolved
+        run: |
+          if [ ! -f "docs/src/utils/cat.md" ]; then
+            echo "docs/src/utils/cat.md does not exist"
+            exit 1
+          fi
+
+          if grep -q "cat-help-" docs/src/utils/cat.md; then
+            echo "Found unresolved Fluent keys in cat.md - help text not properly translated"
+            echo "Unresolved Fluent keys found:"
+            grep "cat-help-" docs/src/utils/cat.md
+            exit 1
+          fi
+
+      - name: Verify about text is present
+        run: |
+          if [ ! -f "docs/src/utils/cat.md" ]; then
+            echo "docs/src/utils/cat.md does not exist"
+            exit 1
+          fi
+
+          if ! grep -q "Concatenate FILE(s)" docs/src/utils/cat.md; then
+            echo "About text missing from cat.md"
+            echo "Content of cat.md:"
+            head -30 docs/src/utils/cat.md
+            exit 1
+          fi
+
+      - name: Verify tldr examples integration
+        run: |
+          if [ ! -f "docs/src/utils/cp.md" ]; then
+            echo "docs/src/utils/cp.md does not exist"
+            exit 1
+          fi
+
+          if ! grep -q "The examples are provided by" docs/src/utils/cp.md; then
+            echo "tldr examples integration missing from cp.md"
+            echo "Expected to find 'The examples are provided by' text"
+            echo "Content of cp.md:"
+            tail -20 docs/src/utils/cp.md
+            exit 1
+          fi