Clean up Github Actions/buildkite

This PR:

- ensures that Github action workflows are killed when a new commit is
pushed to the same branch/PR (following
https://stackoverflow.com/a/67939898)

- removes the need for the test environment from builkite jobs. The test
environment is used only for one job. When the depot is cold,
instantiating the test environment takes several minutes (when we have a
good depot it takes 1-2 minutes). Given that instantiating the
environment has to run before all the tests, this leads to unnecessary
latency.

- adds a new GitHub workflow 'lookahead'. The lookahead workflow is
non-required to merge PRs and runs tests and one simulation (the one
removed from the buildkite run) with julia 1.9 and julia 1.10 and the
latest dependencies.

- removes a stray file (codecov.yml)

.buildkite/pipeline.yml

@@ -36,12 +36,6 @@ steps:
       - "julia --project -e 'using Pkg; Pkg.precompile()'"
       - "julia --project -e 'using Pkg; Pkg.status()'"
 
-      - echo "--- Instantiate test"
-      - "julia --project=test -e 'using Pkg; Pkg.develop(path = \".\")'"
-      - "julia --project=test -e 'using Pkg; Pkg.instantiate(;verbose=true)'"
-      - "julia --project=test -e 'using Pkg; Pkg.precompile()'"
-      - "julia --project=test -e 'using Pkg; Pkg.status()'"
-
       - echo "--- Instantiate examples"
       - "julia --project=examples -e 'using Pkg; Pkg.instantiate(;verbose=true)'"
       - "julia --project=examples -e 'using Pkg; Pkg.precompile()'"
@@ -512,15 +506,6 @@ steps:
           --config_file $CONFIG_PATH/test_io.yml
         artifact_paths: "test_io/*"
 
-      - label: ":computer: Use test env with latest deps"
-        command: >
-          julia --color=yes --project=test examples/hybrid/driver.jl
-          --config_file $CONFIG_PATH/test_env.yml
-        artifact_paths: "test_env/*"
-        soft_fail: true
-        agents:
-          slurm_mem: 20GB
-
       - label: ":computer: MPI io test"
         command: >
           srun julia --color=yes --project=examples examples/hybrid/driver.jl

.codecov.yml

@@ -0,0 +1,3 @@
+comment: false
+github_checks:
+    annotations: false

.github/workflows/CodeCov.yml

@@ -6,6 +6,10 @@ on:
   pull_request:
   merge_group:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   codecov:
     runs-on: ubuntu-latest

.github/workflows/ci.yml

@@ -5,6 +5,10 @@ on:
   pull_request:
   merge_group:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   test:
     name: ci ${{ matrix.version }} - ${{ matrix.os }}
@@ -14,6 +18,7 @@ jobs:
       matrix:
         version:
           - '1.9'
+          - '~1.10.0-rc1'
         os:
           - ubuntu-latest
           - macOS-latest

.github/workflows/docs.yml

@@ -8,6 +8,10 @@ on:
   pull_request:
   merge_group:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   docbuild:
     runs-on: ubuntu-latest

.github/workflows/julia_formatter.yml

@@ -6,15 +6,15 @@ on:
   pull_request:
   merge_group:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   format:
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
-    - name: Cancel Previous Runs
-      uses: styfle/cancel-workflow-action@0.4.0
-      with:
-        access_token: ${{ github.token }}
 
     - uses: actions/checkout@v2.2.0
 

.github/workflows/lookahead.yml

@@ -0,0 +1,57 @@
+name: lookahead
+
+# This action sets up a couple of tests for newer versions of julia and for
+# dependencies more recent than the one in examples so that one can see if there
+# are upcoming problems.
+
+on:
+  push:
+    tags: '*'
+  pull_request:
+  merge_group:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  test:
+    name: ci ${{ matrix.version }} - ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        version:
+          - '1.9'
+          - '~1.10.0-rc1'
+        os:
+          - ubuntu-latest
+        arch:
+          - x64
+    steps:
+      - uses: actions/checkout@v2
+      - uses: julia-actions/setup-julia@v1
+        with:
+          version: ${{ matrix.version }}
+          arch: ${{ matrix.arch }}
+      - uses: actions/cache@v1
+        env:
+          cache-name: cache-artifacts
+        with:
+          path: ~/.julia/artifacts
+          key: ${{ runner.os }}-test-${{ env.cache-name }}-${{ hashFiles('**/Project.toml') }}
+          restore-keys: |
+            ${{ runner.os }}-test-${{ env.cache-name }}-
+            ${{ runner.os }}-test-
+            ${{ runner.os }}-
+      - name: Instantiate test env
+        run: |
+          julia --project=test -e "using Pkg; Pkg.instantiate(); Pkg.develop(path=\".\")"
+      - name: Run test_env.yml
+        continue-on-error: true
+        run: |
+          julia --project=test examples/hybrid/driver.jl --config_file config/model_configs/test_env.yml
+      - name: Run tests
+        run: |
+          julia --project=test test/runtests.jl

config/model_configs/test_env.yml

@@ -7,6 +7,6 @@ precip_model: "0M"
 dt: "1secs"
 t_end: "10secs"
 dt_save_to_sol: "Inf"
-z_elem: 25
-h_elem: 12
+z_elem: 20
+h_elem: 8
 dt_rad: "5secs"