Actions: Split off Cppcheck to stop installing 13 unrelated Homebrew formulas

.github/workflows/cppcheck.yml

@@ -0,0 +1,23 @@
+# Copyright (C) 2021 Sebastian Pipping <sebastian@pipping.org>
+# Licensed under the MIT license
+
+name: Run Cppcheck (from macOS Homebrew)
+
+on:
+  pull_request:
+  push:
+  schedule:
+    - cron: '0 2 * * 5'  # Every Friday at 2am
+
+jobs:
+  checks:
+    name: Run Cppcheck
+    runs-on: macos-latest
+    steps:
+    - uses: actions/checkout@v2.3.4
+    - name: Install runtime dependencies
+      run: |
+        exec brew install cppcheck findutils
+    - name: Run Cppcheck
+      run: |
+        exec .github/workflows/scripts/mass-cppcheck.sh

.github/workflows/macos.yml

@@ -22,7 +22,6 @@ jobs:
           - MODE: distcheck
           - MODE: qa-sh
             FLAT_ENV: CC=clang CXX=clang++ LD=clang++ QA_SANITIZER=address
-          - MODE: cppcheck
     runs-on: macos-latest
     steps:
     - uses: actions/checkout@v2.3.4

.github/workflows/scripts/mass-cppcheck.sh

@@ -0,0 +1,54 @@
+#! /usr/bin/env bash
+#                          __  __            _
+#                       ___\ \/ /_ __   __ _| |_
+#                      / _ \\  /| '_ \ / _` | __|
+#                     |  __//  \| |_) | (_| | |_
+#                      \___/_/\_\ .__/ \__,_|\__|
+#                               |_| XML parser
+#
+# Copyright (c) 2021 Expat development team
+# Licensed under the MIT license:
+#
+# Permission is  hereby granted,  free of charge,  to any  person obtaining
+# a  copy  of  this  software   and  associated  documentation  files  (the
+# "Software"),  to  deal in  the  Software  without restriction,  including
+# without  limitation the  rights  to use,  copy,  modify, merge,  publish,
+# distribute, sublicense, and/or sell copies of the Software, and to permit
+# persons  to whom  the Software  is  furnished to  do so,  subject to  the
+# following conditions:
+#
+# The above copyright  notice and this permission notice  shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE  SOFTWARE  IS  PROVIDED  "AS  IS",  WITHOUT  WARRANTY  OF  ANY  KIND,
+# EXPRESS  OR IMPLIED,  INCLUDING  BUT  NOT LIMITED  TO  THE WARRANTIES  OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+# NO EVENT SHALL THE AUTHORS OR  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+# DAMAGES OR  OTHER LIABILITY, WHETHER  IN AN  ACTION OF CONTRACT,  TORT OR
+# OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+# USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+PS4='# '
+set -e -u -o pipefail -x
+
+if [[ "$(uname -s)" =~ ^Darwin ]]; then
+    export PATH="/usr/local/opt/findutils/libexec/gnubin${PATH:+:}${PATH}"
+fi
+
+cppcheck --version
+
+find --version | head -n1
+
+find_args=(
+    -type f \(
+        -name \*.cpp
+        -o -name \*.c
+    \)
+    -not \(  # Exclude .c files that are merely included by other files
+        -name xmltok_ns.c
+        -o -name xmltok_impl.c
+    \)
+    -exec cppcheck --quiet --error-exitcode=1 --force --suppress=objectIndex {} +
+)
+
+exec find "${find_args[@]}"

.travis.sh

@@ -59,20 +59,6 @@ elif [[ ${MODE} = cmake-oos ]]; then
     make VERBOSE=1 CTEST_OUTPUT_ON_FAILURE=1 all test
     make DESTDIR="${PWD}"/ROOT install
     find ROOT -printf "%P\n" | sort
-elif [[ ${MODE} = cppcheck ]]; then
-    cppcheck --version
-    find_args=(
-        -type f \(
-            -name \*.cpp
-            -o -name \*.c
-        \)
-        -not \(  # Exclude .c files that are merely included by other files
-            -name xmltok_ns.c
-            -o -name xmltok_impl.c
-        \)
-        -exec cppcheck --quiet --error-exitcode=1 --force --suppress=objectIndex {} +
-    )
-    find "${find_args[@]}"
 elif [[ ${MODE} = clang-format ]]; then
     ./apply-clang-format.sh
     git diff --exit-code

Brewfile

@@ -2,7 +2,6 @@ brew "autoconf"
 brew "automake"
 brew "cmake"
 brew "coreutils"
-brew "cppcheck"
 brew "docbook2x"
 brew "dos2unix"
 brew "findutils"