Feature/auto discover good commit

.github/workflows/main.yml

@@ -0,0 +1,41 @@
+name: KAB tests
+
+on: pull_request
+
+jobs:
+  basic-tests:
+    runs-on: ubuntu-latest
+    container: docker.io/fedora:latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Format Check
+        run: |
+          dnf install make shfmt -yq
+          make format-check
+
+      - name: Static Analysis
+        run: |
+          dnf install shellcheck -yq
+          make static-analysis
+
+      - name: Unit Tests
+        run: |
+          dnf install git -yq
+          curl -L -O https://github.com/shellspec/shellspec/archive/latest.tar.gz && tar -xzf latest.tar.gz
+          cd shellspec-latest && sudo make install
+          cd ..
+          make unit-tests
+
+  integration-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Schedule test on Testing Farm
+        uses: sclorg/testing-farm-as-github-action@v4
+        with:
+          api_key: ${{ secrets.TF_API_KEY }}
+          compose: Fedora-43
+          # Avoid using xen guests as some machines don't support kdump
+          tmt_hardware: '{"virtualization.hypervisor": "!= xen"}'
+          pipeline_settings: '{"type": "tmt-multihost"}'

.gitignore

@@ -0,0 +1,3 @@
+.gemini/
+gha-creds-*.json
+.worktrees/

README.md

@@ -78,7 +78,7 @@ Edit `/usr/local/bin/kernel-auto-bisect/bisect.conf` after installation.
 | `GIT_REPO_URL` | URL of the kernel git repository to clone |
 | `GIT_REPO_BRANCH` | Branch to clone |
 | `LOCAL_GIT_REPO` | Path to a local Linux git repo (skips cloning when set) |
-| `GOOD_COMMIT` | Git commit hash of the known-good commit |
+| `GOOD_COMMIT` | Git commit hash of the known-good commit (optional; auto-discovered if omitted) |
 | `BAD_COMMIT` | Git commit hash of the known-bad commit |
 | `MAKE_JOBS` | Number of parallel make jobs (defaults to `nproc`) |
 
@@ -88,7 +88,7 @@ Edit `/usr/local/bin/kernel-auto-bisect/bisect.conf` after installation.
 |---|---|
 | `KERNEL_RPM_LIST` | Path to a file listing kernel RPM URLs, one per line (ordered from good to bad) |
 | `RPM_CACHE_DIR` | Directory to cache downloaded RPMs |
-| `GOOD_COMMIT` | Kernel release string of the known-good version (e.g. `5.14.0-162.el9.aarch64`) |
+| `GOOD_COMMIT` | Kernel release string of the known-good version (optional; auto-discovered if omitted) |
 | `BAD_COMMIT` | Kernel release string of the known-bad version |
 
 ### Remote Mode

bisect.conf

@@ -41,10 +41,12 @@ KERNEL_RPM_LIST="/path/to/your/kernel_rpm_list.txt"
 RPM_CACHE_DIR="/var/cache/kdump-bisect-rpms"
 
 # === Commit/Version Boundaries ===
-# If INSTALL_STRATEGY="git", these are git commit hashes.
-# If INSTALL_STRATEGY="rpm", these are kernel release versions (e.g., "5.14.0-162.el9.aarch64").
-GOOD_COMMIT="<paste_good_commit_or_version_here>"
+# BAD_COMMIT (required): The known-bad commit hash or kernel release version.
+# GOOD_COMMIT (optional): The known-good commit hash or kernel release version.
+#   If omitted, the tool auto-discovers a good commit by exponential search
+#   backward through history (testing commits at ~1, ~2, ~4, ~8, ...).
 BAD_COMMIT="<paste_bad_commit_or_version_here>"
+GOOD_COMMIT=""
 
 # === Reproducer Script ===
 # For 'panic' mode, must contain setup_test() and on_test().