5 files changed, 97 insertions, 0 deletions
diff --git a/.github/actions/build-foo-cygwin/action.yml b/.github/actions/build-foo-cygwin/action.yml
new file mode 100644
index 0000000..e1ae57c
--- /dev/null
+++ b/.github/actions/build-foo-cygwin/action.yml
@@ -0,0 +1,20 @@
+name: Build foo.exe
+description: Build foo.exe (on Cygwin)
+inputs:
+  platform:
+    description: Target platform
+    required: true
+runs:
+  using: composite
+  steps:
+    - run: |
+        IFS= read -r src_dir <<'EOF'
+        ${{ github.workspace }}
+        EOF
+        echo "$src_dir"
+        src_dir="$( cygpath -ua "$src_dir" )"
+        cd -- "$src_dir"
+        arch=
+        [ '${{ matrix.platform }}' == 'x86' ] && arch=-m32
+        g++ $arch -std=c++14 -o foo foo.cpp
+      shell: C:\tools\cygwin\bin\bash.exe --login --norc -eo pipefail -o igncr '{0}'
diff --git a/.github/actions/build-foo/action.yml b/.github/actions/build-foo/action.yml
new file mode 100644
index 0000000..c1a6fdd
--- /dev/null
+++ b/.github/actions/build-foo/action.yml
@@ -0,0 +1,20 @@
+name: Build foo.exe
+description: Build foo.exe
+inputs:
+  platform:
+    description: Target platform
+    required: true
+runs:
+  using: composite
+  steps:
+    - run: |
+        $flags = @()
+        if ('${{ matrix.platform }}' -eq 'x86') {
+            $flags += '-m32'
+        }
+        $flags += '-std=c++14','-o','foo','foo.cpp'
+        if ('${{ runner.os }}' -eq 'Linux') {
+            $flags += '-lpthread'
+        }
+        g++ $flags
+      shell: pwsh
diff --git a/.github/actions/check-cc-cygwin/action.yml b/.github/actions/check-cc-cygwin/action.yml
new file mode 100644
index 0000000..b0926cc
--- /dev/null
+++ b/.github/actions/check-cc-cygwin/action.yml
@@ -0,0 +1,21 @@
+name: Check cc/c++
+description: Check cc/c++ (on Cygwin)
+runs:
+  using: composite
+  steps:
+    # Is this really the most stable piece of `gcc --version` output?
+    - run: |
+        check_tool() {
+            local exe
+            for exe; do
+                output="$( "$exe" --version )"
+                echo "$output"
+                if ! echo "$output" | grep -F -- "This is free software; see the source for copying conditions."; then
+                    echo 'Unexpected `'"$exe"' --version` output.' >&2
+                    exit 1
+                fi
+            done
+        }
+        check_tool cc
+        check_tool c++
+      shell: C:\tools\cygwin\bin\bash.exe --login --norc -eo pipefail -o igncr '{0}'
diff --git a/.github/actions/check-cc/action.yml b/.github/actions/check-cc/action.yml
new file mode 100644
index 0000000..d2b98ed
--- /dev/null
+++ b/.github/actions/check-cc/action.yml
@@ -0,0 +1,16 @@
+name: Check cc/c++
+description: Check cc/c++
+runs:
+  using: composite
+  steps:
+    # Is this really the most stable piece of `gcc --version` output?
+    - run: |
+        echo (Get-Command cc).Path
+        $cc = & cc --version
+        echo $cc
+        $($cc | Select-String -Pattern "This is free software; see the source for copying conditions." -SimpleMatch -Quiet) -or $(throw "Unexpected `cc --version` output")
+        echo (Get-Command c++).Path
+        $cxx = & c++ --version
+        echo $cxx
+        $($cxx | Select-String -Pattern "This is free software; see the source for copying conditions." -SimpleMatch -Quiet) -or $(throw "Unexpected `c++ --version` output")
+      shell: pwsh
diff --git a/.github/actions/run-foo/action.yml b/.github/actions/run-foo/action.yml
new file mode 100644
index 0000000..9e53df5
--- /dev/null
+++ b/.github/actions/run-foo/action.yml
@@ -0,0 +1,20 @@
+name: Run foo.exe
+description: Run foo.exe and verify its output
+runs:
+  using: composite
+  steps:
+    - run: |
+        $expected = @"
+        Doing something #1
+        Doing something #2
+        Doing something #3
+        "@
+
+        $actual = & (Join-Path . foo)
+        $actual = $actual -join [Environment]::NewLine
+
+        $($actual -eq $expected) -or $(throw @"
+        Unexpected output:
+        $actual
+        "@)
+      shell: pwsh