0 - CI base (squashed view): Upstream + Pytest, Workflow, Python 3.12

.github/actions/install_env_and_hb/action.yml

@@ -1,44 +1,21 @@
 name: "Install environment and Hummingbot"
-description: "Installs conda environment, all libraries and compiles Hummingbot"
+description: "Installs pixi environment and compiles Hummingbot"
 inputs:
    program-cache-hit:
      required: true
      description: "Value of truth regarding the program cache being hit or not"
-   dependencies-cache-hit:
-     required: true
-     description: "Value of truth regarding the program cache being hit or not"
 runs:
   using: "composite"
   steps:
-    # Install python/conda to check if core code has changed
-    - uses: actions/setup-python@v4
-      if: ${{inputs.program-cache-hit}} != 'true' || ${{inputs.dependencies-cache-hit}} != 'true'
+    - name: Set up pixi
+      if: ${{inputs.program-cache-hit}} != 'true'
+      uses: prefix-dev/setup-pixi@v0.9.6
       with:
-        python-version: 3.x
-
-    # Install pre_commit if code has changed
-    - name: Install pre_commit
-      if: ${{inputs.program-cache-hit}} != 'true' || ${{inputs.dependencies-cache-hit}} != 'true'
-      shell: bash
-      run: |
-        conda install -c conda-forge pre_commit
-
-    # Install hummingbot env if environment.yml has changed
-    - name: Install Hummingbot
-      if: ${{inputs.dependencies-cache-hit}} != 'true'
-      shell: bash -l {0}
-      run: |
-        ./install
+        environments: ci
+        cache: true
+        locked: false
 
-    # Compile and run tests if code has changed
-    - name: Compile Hummingbot
+    - name: Build Hummingbot
       shell: bash
-      if: ${{inputs.program-cache-hit}} != 'true' || ${{inputs.dependencies-cache-hit}} != 'true'
-      env:
-        WITHOUT_CYTHON_OPTIMIZATIONS: 'true'
-      run: |
-        source $CONDA/etc/profile.d/conda.sh
-        conda info --envs
-        conda activate hummingbot
-        conda env export
-        ./compile
+      if: ${{inputs.program-cache-hit}} != 'true'
+      run: pixi run -e ci build

.github/test-selection/run-changed.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+# Fast diff-driven test run vs origin/ci-base.
+# Selects tests touched by the branch's diff, then runs pixi pytest.
+set -euo pipefail
+
+REPO_ROOT="$(git rev-parse --show-toplevel)"
+cd "$REPO_ROOT"
+
+SELECTED="$(mktemp)"
+trap 'rm -f "$SELECTED"' EXIT
+
+python3 .github/test-selection/select_tests.py \
+  --mode branch \
+  --base-ref origin/ci-base \
+  --head-ref HEAD \
+  --config .github/test-selection/test-selection-map.yaml \
+  --repo . \
+  --no-history > "$SELECTED"
+
+if [ ! -s "$SELECTED" ]; then
+  echo "No tests touched by diff — quick check passes."
+  exit 0
+fi
+
+echo "Selected $(wc -l < "$SELECTED") test files:"
+cat "$SELECTED"
+echo "---"
+
+exec pixi run -e ci pytest $(cat "$SELECTED") -v --tb=short