ci: Add tasks for building ystdlib-cpp and a GitHub workflow to validate build success.

.github/workflows/code-linting-checks.yaml

@@ -20,7 +20,9 @@ jobs:
   lint-check:
     strategy:
       matrix:
-        os: ["macos-latest", "ubuntu-latest"]
+        os:
+          - "macos-latest"
+          - "ubuntu-latest"
     runs-on: "${{matrix.os}}"
     steps:
       - uses: "actions/checkout@v4"

.github/workflows/unit-tests.yaml

@@ -0,0 +1,55 @@
+name: "unit-tests"
+
+on:
+  pull_request:
+  push:
+  schedule:
+    # Run daily at 00:15 UTC (the 15 is to avoid periods of high load)
+    - cron: "15 0 * * *"
+  workflow_dispatch:
+
+permissions: {}
+
+concurrency:
+  group: "${{github.workflow}}-${{github.ref}}"
+
+  # Cancel in-progress jobs for efficiency
+  cancel-in-progress: true
+
+jobs:
+  build-ystdlib-cpp:
+    strategy:
+      matrix:
+        os:
+          - "macos-latest"
+          - "ubuntu-20.04"
+          - "ubuntu-22.04"
+          - "ubuntu-24.04"
+    runs-on: "${{matrix.os}}"
+    steps:
+      - uses: "actions/checkout@v4"
+        with:
+          submodules: "recursive"
+
+      - uses: "actions/setup-python@v5"
+        with:
+          python-version: "3.11"
+
+      - name: "Install task"
+        shell: "bash"
+        run: "npm install -g @go-task/cli"
+
+      - if: "matrix.os == 'macos-latest'"
+        name: "Install coreutils (for md5sum)"
+        run: "brew install coreutils"
+
+      - name: "Log tool versions"
+        run: |-
+          md5sum --version
+          python --version
+          tar --version
+          task --version
+
+      # TODO: Change the task to run all unittests once any unittest is added. Until then we check
+      # that building the project succeeds.
+      - run: "task build:target"

README.md

@@ -15,6 +15,12 @@ Initialize and update submodules:
 git submodule update --init --recursive
 ```
 
+# Building
+To build all targets in `ystdlib-cpp`:
+```shell
+task build:target
+```
+
 ## Linting
 Before submitting a pull request, ensure you’ve run the linting commands below and have fixed all
 violations and suppressed all warnings.

taskfile.yaml

@@ -1,6 +1,7 @@
 version: "3"
 
 includes:
+  build: "./taskfiles/build.yaml"
   lint: "./taskfiles/lint.yaml"
   utils: "tools/yscope-dev-utils/taskfiles/utils.yml"
 

taskfiles/build.yaml

@@ -0,0 +1,27 @@
+version: "3"
+
+tasks:
+  target:
+    desc: "Builds ystdlib-cpp."
+    vars:
+      TARGETS:
+        ref: "default (list \"all\") .TARGETS"
+    deps:
+      - ":config-cmake-project"
+    cmds:
+      - >-
+        cmake
+        --build "{{.G_BUILD_DIR}}"
+        --parallel {{numCPU}}
+        --target {{range .TARGETS}}{{.}} {{end}}
+
+  clean:
+    desc: "Removes all built artifacts."
+    deps:
+      - ":config-cmake-project"
+    cmds:
+      - >-
+        cmake
+        --build "{{.G_BUILD_DIR}}"
+        --parallel {{numCPU}}
+        --target clean