Add Github Actions support (cherry picked from master)

.github/dependabot.yaml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: /
+    schedule:
+      interval: weekly

.github/ubuntu-24.04-expected.txt

@@ -0,0 +1,3 @@
+none/tests/log-track-fds                 (stderr)
+none/tests/track-fds-exec-children       (stderr)
+none/tests/xml-track-fds                 (stderr)

.github/workflows/build.yml

@@ -0,0 +1,71 @@
+name: Build
+
+on: [push]
+
+env:
+  TEST_FOLDER: .github/test
+
+jobs:
+  build_various_platforms:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-24.04]
+
+    runs-on: ${{ matrix.os }}
+
+    name: Build and Test on ${{matrix.os}}
+
+    steps:
+      - name: install dependencies (MacOS)
+        run: brew update && brew install automake
+        if: ${{ matrix.os != 'ubuntu-24.04' }}
+      - name: install dependencies (Linux)
+        run: sudo apt-get update && sudo apt-get install libc6-dbg gdb
+        if: ${{ matrix.os == 'ubuntu-24.04' }}
+      - name: checkout project
+        uses: actions/checkout@v1
+      - name: calculate short SHA
+        id: sha
+        run: echo "short=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
+      - name: autogen.sh
+        run: ./autogen.sh
+      - name: configure
+        run: ./configure
+      - name: build
+        run: make
+      - name: try ls -l
+        run: ./vg-in-place ls -l
+      - name: build regression tests
+        run: make check
+      - name: create artifacts folder
+        run: mkdir -p ${{ env.TEST_FOLDER }}/outputs
+      - name: build tests
+        run: make check
+      - name: run regression tests
+        run: make regtest | tee raw-results.txt
+      - name: process results
+        if: always()
+        run: awk '/^== [0-9]+ tests, .* ==$/{flag=1;next}/^$/{flag=0}flag' < raw-results.txt > ${{ env.TEST_FOLDER }}/results.txt
+      - name: copy failing test outputs
+        if: always()
+        run: cat ${{ env.TEST_FOLDER }}/results.txt | cut -f 1 -d' ' | xargs -L1 -I % sh -c 'cp %.*.diff* ${{ env.TEST_FOLDER }}/outputs/'
+      - name: calculate difference between tests
+        if: always()
+        uses: LouisBrunner/diff-action@v0.2.0
+        with:
+          old: .github/${{ matrix.os }}-expected.txt
+          new: ${{ env.TEST_FOLDER }}/results.txt
+          mode: deletion
+          tolerance: same
+          output: ${{ env.TEST_FOLDER }}/results.diff
+          token: ${{ secrets.GITHUB_TOKEN }}
+          title: ${{ matrix.os }}
+          notify_check: true
+          notify_issue: true
+      - name: upload artifacts
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: test-results-${{ steps.sha.outputs.short }}-${{ matrix.os }}
+          path: ${{ env.TEST_FOLDER }}/

tests/check_headers_and_includes

@@ -58,6 +58,7 @@ my %tool_dirs = (
 my %dirs_to_ignore = (
     ".deps" => 1,
     ".git" => 1,
+    ".github" => 1, # Only for valgrind-macos
     ".in_place" => 1,
     "Inst" => 1,            # the nightly scripts creates this
     "VEX" => 1,

tests/vg_regtest.in

@@ -700,7 +700,10 @@ sub test_one_dir($$)
     # Nb: Don't prepend a '/' to the base directory
     my $full_dir = $prev_dirs . ($prev_dirs eq "" ? "" : "/") . $dir;
     print TSLOG scalar localtime, " entering $full_dir\n";
-    my $dashes = "-" x (50 - length $full_dir);
+    my $dashes = "";
+    if (length $full_dir <= 50) {
+      $dashes = "-" x (50 - length $full_dir);
+    }
 
     my @fs = glob "*";
     my $found_tests = (0 != (grep { $_ =~ /\.vgtest$/ } @fs));