style: use single quotes when double quotes not needed in shell scripts

Author: jonasgeiler

.github/workflows/check-demos.yml

@@ -48,7 +48,7 @@ jobs:
           # download and setup problem matcher for luacheck's visual_studio formatter
           wget -q "https://raw.githubusercontent.com/ammaraskar/msvc-problem-matcher/${MSCV_PROBLEM_MATCHER_VERSION}/msvc_matcher.json" \
             -O visual-studio-problem-matcher.json
-          echo "::add-matcher::visual-studio-problem-matcher.json"
+          echo '::add-matcher::visual-studio-problem-matcher.json'
 
           # run luacheck
           luacheck ./demos/ --no-cache --formatter visual_studio

.github/workflows/check-workflows.yml

@@ -46,7 +46,7 @@ jobs:
           # download and setup problem matcher for actionlint
           wget -q "https://raw.githubusercontent.com/rhysd/actionlint/${ACTIONLINT_VERSION}/.github/actionlint-matcher.json" \
             -O actionlint-problem-matcher.json
-          echo "::add-matcher::actionlint-problem-matcher.json"
+          echo '::add-matcher::actionlint-problem-matcher.json'
 
           # run actionlint
           ./actionlint -verbose -color

.github/workflows/check.yml

@@ -49,14 +49,14 @@ jobs:
           
           # "notify" me of newer clang-format version
           if command -v clang-format-19 &> /dev/null; then
-            echo "clang-format-19 is available"
+            echo 'clang-format-19 is available'
             exit 2
           fi
 
           shopt -s nullglob
           files=(src/*.c src/**/*.c include/*.h include/**/*.h)
           if [[ "${#files[@]}" -eq 0 ]]; then
-            echo "No files found"
+            echo 'No files found'
             exit 1
           fi
           clang-format-18 --verbose --dry-run --Werror "${files[@]}"
@@ -67,7 +67,7 @@ jobs:
           
           # "notify" me of newer clang-tidy version
           if command -v clang-tidy-19 &> /dev/null; then
-            echo "clang-tidy-19 is available"
+            echo 'clang-tidy-19 is available'
             exit 2
           fi
           
@@ -83,14 +83,14 @@ jobs:
           shopt -s nullglob
           files=(src/*.c src/**/*.c include/*.h include/**/*.h)
           if [[ "${#files[@]}" -eq 0 ]]; then
-            echo "No files found"
+            echo 'No files found'
             exit 1
           fi
-          clang-tidy-18 --warnings-as-errors="*" --extra-arg="-I/usr/include/lua5.1" "${files[@]}"
-          clang-tidy-18 --warnings-as-errors="*" --extra-arg="-I/usr/include/lua5.2" "${files[@]}"
-          clang-tidy-18 --warnings-as-errors="*" --extra-arg="-I/usr/include/lua5.3" "${files[@]}"
-          clang-tidy-18 --warnings-as-errors="*" --extra-arg="-I/usr/include/lua5.4" "${files[@]}"
-          clang-tidy-18 --warnings-as-errors="*" --extra-arg="-I/usr/include/luajit-2.1" "${files[@]}"
+          clang-tidy-18 --warnings-as-errors='*' --extra-arg='-I/usr/include/lua5.1' "${files[@]}"
+          clang-tidy-18 --warnings-as-errors='*' --extra-arg='-I/usr/include/lua5.2' "${files[@]}"
+          clang-tidy-18 --warnings-as-errors='*' --extra-arg='-I/usr/include/lua5.3' "${files[@]}"
+          clang-tidy-18 --warnings-as-errors='*' --extra-arg='-I/usr/include/lua5.4' "${files[@]}"
+          clang-tidy-18 --warnings-as-errors='*' --extra-arg='-I/usr/include/luajit-2.1' "${files[@]}"
 
       - name: Set up Lua
         uses: luarocks/gh-actions-lua@master
@@ -111,10 +111,10 @@ jobs:
           # download and setup problem matcher for luacheck's visual_studio formatter
           wget -q "https://raw.githubusercontent.com/ammaraskar/msvc-problem-matcher/${MSCV_PROBLEM_MATCHER_VERSION}/msvc_matcher.json" \
             -O visual-studio-problem-matcher.json
-          echo "::add-matcher::visual-studio-problem-matcher.json"
+          echo '::add-matcher::visual-studio-problem-matcher.json'
 
           # run luacheck
-          luacheck . --no-cache --formatter visual_studio --include-files "spec/**/*.lua" "**/*.rockspec" --exclude-files .lua .luarocks
+          luacheck . --no-cache --formatter visual_studio --include-files 'spec/**/*.lua' '**/*.rockspec' --exclude-files .lua .luarocks
 
 
   test:

.github/workflows/release.yml

@@ -38,16 +38,16 @@ jobs:
           
           version="${GITHUB_REF_NAME}"
           rockspec="fenster-${version#v}-1.rockspec"
-          git mv fenster-dev-1.rockspec "$rockspec"
-          sed -i -E "s/\bversion\s*=\s*('|\"|\[\[)\s*[a-zA-Z0-9.-]+\s*('|\"|\]\])/version = '${version#v}-1'/" "$rockspec"
-          sed -i -E "s/\bbranch\s*=\s*('|\"|\[\[)\s*[a-zA-Z0-9.-_\/]+\s*('|\"|\]\])/tag = '$version'/" "$rockspec"
+          git mv fenster-dev-1.rockspec "${rockspec}"
+          sed -i -E "s/\bversion\s*=\s*('|\"|\[\[)\s*[a-zA-Z0-9.-]+\s*('|\"|\]\])/version = '${version#v}-1'/" "${rockspec}"
+          sed -i -E "s/\bbranch\s*=\s*('|\"|\[\[)\s*[a-zA-Z0-9.-_\/]+\s*('|\"|\]\])/tag = '$version'/" "${rockspec}"
           git diff
-          if [[ -z "$(git status --porcelain "$rockspec")" ]]; then
-            echo "Rockspec not modified"
+          if [[ -z "$(git status --porcelain "${rockspec}")" ]]; then
+            echo 'Rockspec not modified'
             exit 1
           fi
           luarocks install dkjson
-          luarocks upload --temp-key "${{ secrets.LUAROCKS_API_KEY }}" "$rockspec"
+          luarocks upload --temp-key "${{ secrets.LUAROCKS_API_KEY }}" "${rockspec}"
 
       - name: Draft release on GitHub
         uses: softprops/action-gh-release@e7a8f85e1c67a31e6ed99a94b41bd0b71bbee6b8 # v2.0.9

docker-compose.yml

@@ -9,17 +9,17 @@ x-build-preset: &build_preset
     SHELL ["/bin/bash", "-euxo", "pipefail", "-c"]
     RUN IFS=$$' \n\t'; \
         \
-        echo "**** install system packages ****"; \
+        echo '**** install system packages ****'; \
         apt-get update; \
         apt-get install --no-install-recommends --yes \
           build-essential \
           libx11-dev \
         ; \
-        echo "**** install luarocks packages ****"; \
+        echo '**** install luarocks packages ****'; \
         luarocks install --no-doc \
           busted \
         ; \
-        echo "**** cleanup ****"; \
+        echo '**** cleanup ****'; \
         rm -rf \
           /tmp/* \
           /var/lib/apt/lists/* \