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-rw-r--r--.gitattributes1
-rw-r--r--.github/workflows/test.yml78
-rw-r--r--LICENSE.txt21
-rw-r--r--action.yml92
-rw-r--r--foo.cpp39
5 files changed, 231 insertions, 0 deletions
diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..176a458
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1 @@
+* text=auto
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..dc8e74f
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,78 @@
+name: Test
+
+on:
+ push:
+ pull_request:
+ schedule:
+ # Weekly, at 5:45 AM on Friday (somewhat randomly chosen).
+ - cron: '45 5 * * 5'
+ workflow_dispatch:
+
+jobs:
+ test:
+ strategy:
+ fail-fast: false
+ matrix:
+ platform: [x86, x64]
+ cygwin: [0, 1]
+ os: [ubuntu-18.04, windows-2019, windows-2016]
+
+ include:
+ # Prettier run names.
+ - {os: ubuntu-18.04, name: Ubuntu}
+ - {os: windows-2019, name: Windows Server 2019}
+ - {os: windows-2016, name: Windows Server 2016}
+ - {cygwin: 1, name: Cygwin}
+ exclude:
+ # No Cygwin on Ubuntu.
+ - {os: ubuntu-18.04, cygwin: 1}
+ # Cygwin is the same on Windows Server 2016 & 2019.
+ - {os: windows-2016, cygwin: 1}
+
+ runs-on: '${{ matrix.os }}'
+
+ name: '${{ matrix.name }} / ${{ matrix.platform }}'
+
+ defaults:
+ run:
+ shell: pwsh
+
+ steps:
+ - name: Checkout
+ uses: actions/checkout@v2
+
+ - name: Clean up PATH
+ uses: egor-tensin/cleanup-path@v1
+ if: runner.os == 'Windows'
+
+ - name: Install Cygwin
+ uses: egor-tensin/setup-cygwin@master
+ with:
+ platform: '${{ matrix.platform }}'
+ if: matrix.cygwin
+
+ - name: Set up Clang
+ id: setup
+ uses: ./
+ with:
+ platform: '${{ matrix.platform }}'
+ cygwin: '${{ matrix.cygwin }}'
+
+ - name: Build foo.exe
+ run: |
+ $flags = @()
+ if ('${{ matrix.platform }}' -eq 'x86') {
+ $flags += '-m32'
+ }
+ $flags += @(
+ '-x', 'c++',
+ '-std=c++14',
+ '-o', 'foo',
+ 'foo.cpp',
+ '-lstdc++'
+ )
+ if ('${{ runner.os }}' -eq 'Linux') {
+ $flags += '-lpthread'
+ }
+ & '${{ steps.setup.outputs.clangxx }}' $flags
+ & (Join-Path . foo)
diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 0000000..ab8c3ff
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020 Egor Tensin <Egor.Tensin@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/action.yml b/action.yml
new file mode 100644
index 0000000..72e0e80
--- /dev/null
+++ b/action.yml
@@ -0,0 +1,92 @@
+name: Install Clang
+description: Install Clang & LLVM
+
+inputs:
+ platform:
+ description: Target platform
+ required: false
+ default: x64
+ cygwin:
+ description: Install inside Cygwin
+ required: false
+ default: 0
+
+outputs:
+ clang:
+ description: clang executable name or path
+ value: '${{ steps.setup.outputs.clang }}'
+ clangxx:
+ description: clang++ executable name or path
+ value: '${{ steps.setup.outputs.clangxx }}'
+
+runs:
+ using: composite
+ steps:
+ - id: setup
+ run: |
+ New-Variable os -Value '${{ runner.os }}' -Option Constant
+
+ New-Variable linux_host -Value ($os -eq 'Linux') -Option Constant
+ New-Variable cygwin_host -Value ('${{ inputs.cygwin }}' -eq '1') -Option Constant
+ New-Variable windows_host -Value ($os -eq 'Windows' -and !$cygwin) -Option Constant
+
+ New-Variable x64 -Value ('${{ inputs.platform }}' -eq 'x64') -Option Constant
+
+ function Locate-Choco {
+ $path = Get-Command 'choco' -ErrorAction SilentlyContinue
+ if ($path) {
+ $path.Path
+ } else {
+ Join-Path ${env:ProgramData} 'chocolatey' 'bin' 'choco'
+ }
+ }
+
+ if ($linux_host) {
+ sudo apt update
+ if ($x64) {
+ sudo apt install -y clang g++
+ } else {
+ sudo apt install -y clang g++-multilib
+ }
+
+ echo "::set-output name=clang::clang"
+ echo "::set-output name=clangxx::clang++"
+ } elseif ($cygwin_host) {
+ if (!$x64) {
+ echo @'
+ ::warning ::
+ 32-bit-targeting Clang is unavailable on 64-bit Cygwin.
+ Please use 32-bit Cygwin instead.
+ If you _are_ using 32-bit Cygwin, please ignore this message.
+ '@
+ }
+ $choco = Locate-Choco
+
+ # IDK why, but without libiconv-devel, even a "Hello, world!"
+ # C++ app cannot be compiled as of December 2020.
+ # Also, libstdc++ is required, and for simplicity's sake, gcc-g++
+ # is installed.
+ & $choco install -y --no-progress --source=cygwin clang libiconv-devel gcc-g++
+
+ # clang/clang++ are symlinks on Cygwin, pointing to clang-VERSION.exe.
+ $clang = cygpath.exe -wa (readlink.exe --canonicalize-existing /usr/bin/clang)
+ $clangxx = cygpath.exe -wa (readlink.exe --canonicalize-existing /usr/bin/clang++)
+
+ echo "::set-output name=clang::$clang"
+ echo "::set-output name=clangxx::$clangxx"
+ } elseif ($windows_host) {
+ $choco = Locate-Choco
+
+ & $choco install -y --no-progress llvm
+ echo (Join-Path $env:ProgramFiles LLVM bin) >> $env:GITHUB_PATH
+
+ echo "::set-output name=clang::clang"
+ echo "::set-output name=clangxx::clang++"
+ } else {
+ throw "Sorry, installing Clang is unsupported on $os"
+ }
+ shell: pwsh
+
+branding:
+ icon: star
+ color: green
diff --git a/foo.cpp b/foo.cpp
new file mode 100644
index 0000000..a7891bb
--- /dev/null
+++ b/foo.cpp
@@ -0,0 +1,39 @@
+#include <array>
+#include <cstddef>
+#include <exception>
+#include <functional>
+#include <iostream>
+#include <mutex>
+#include <thread>
+
+namespace {
+
+struct Counter {
+ std::mutex mtx;
+ std::size_t impl = 0;
+};
+
+void do_something(Counter& counter) {
+ std::lock_guard<std::mutex> lck{counter.mtx};
+ ++counter.impl;
+ std::cout << "Doing something #" << counter.impl << '\n';
+}
+
+}
+
+int main() {
+ try {
+ Counter counter;
+ std::array<std::thread, 3> workers;
+ for (auto& worker : workers) {
+ worker = std::thread{&do_something, std::ref(counter)};
+ }
+ for (auto& worker : workers) {
+ worker.join();
+ }
+ } catch (const std::exception& e) {
+ std::cerr << e.what() << '\n';
+ return 1;
+ }
+ return 0;
+}