Migrate from Travis CI to GitHub Actions

This removes all CI builds from travis-ci, due to their recent changes
in policy and harsh limitations on builds. With build times over 2
hours, it was a significant hindrance to development.

Instead of Travis CI, the CI is now split on Sourcehut and GitHub. Since
Sourcehut only supports Linux/BSD, all builds on those operating systems
are executed there. The GitHub Actions CI is used to build for
Windows/macOS, which are not available on Sourcehut.

Since asset deployment for releases requires builds on all platforms,
this is also done on GitHub actions. Though the new `upload_asset.sh`
script makes sure that migration in the future is fairly simple and we
do not tie ourselves to the overly complicated GitHub Actions ecosystem.

1 files changed, 38 insertions, 0 deletions

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 00000000..7086f1cd
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,38 @@
+name: CI
+
+on: [push, pull_request]
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        rust_version: [stable, 1.43.1]
+        os: [windows-latest, macos-latest]
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Rustup
+        run: rustup default ${{ matrix.rust_version }}
+      - name: Test
+        run: cargo test
+
+  clippy:
+    strategy:
+      matrix:
+        os: [windows-latest, macos-latest]
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Rustup
+        run: rustup default ${{ matrix.rust_version }}
+      - name: Install Clippy
+        run: rustup component add clippy
+      - name: Lint
+        run: cargo clippy --all-targets --manifest-path ./alacritty/Cargo.toml --no-default-features --features "x11 wayland"