refactor: organize Rust code into crates and add new Python bindings

.gitattributes

@@ -2,5 +2,11 @@
 pixi.lock merge=binary linguist-language=YAML linguist-generated=true
 Cargo.lock merge=binary linguist-generated=true
 
+# Patch test files should always use LF line endings to ensure consistent snapshots across platforms
+crates/rattler_build_diffy/src/patch/test-data/*.patch text eol=lf
+# Rust test files with multi-line string literals need LF endings for cross-platform consistency
+crates/rattler_build_diffy/src/diff/tests.rs text eol=lf
+# Keep one file with CRLF endings to test Windows-style line ending handling
+crates/rattler_build_diffy/src/patch/test-data/define_byteswap.patch text eol=crlf
 # Test data files should always use LF line endings for cross-platform consistency
 test-data/patch_application/**/*.py text eol=lf

.github/workflows/lint.yml

@@ -26,7 +26,13 @@ jobs:
       - name: Set up pixi
         uses: prefix-dev/[email protected]
         with:
-          environments: lint
+          environments: pre-commit lint
           cache: true
-      - name: lint (if this step fails, please 'pixi run lint' locally and push the changes)
-        run: pixi run lint
+      - name: lint (if this step fails, please 'pixi run -e pre-commit lint' locally and push the changes)
+        run: pixi run -e pre-commit lint
+      - name: Check for uncommitted changes
+        run: |
+          if ! git diff --exit-code; then
+            echo "::error::Formatting changes detected! Run 'pixi run -e pre-commit lint' locally and commit the changes."
+            exit 1
+          fi

.github/workflows/python-bindings.yml

@@ -42,18 +42,10 @@ jobs:
         with:
           manifest-path: py-rattler-build/pixi.toml
           cache: true
-      - name: Check formatting
-        working-directory: py-rattler-build
-        run: |
-          pixi run fmt-check
       - name: Check Cargo.lock
         working-directory: py-rattler-build
         run: |
           pixi run check-cargo-lock
-      - name: Lint
-        working-directory: py-rattler-build
-        run: |
-          pixi run lint
       - name: Run tests
         working-directory: py-rattler-build
         run: |

.github/workflows/rust.yml

@@ -64,7 +64,7 @@ jobs:
         if: ${{ matrix.os == 'macos-latest' }}
         run: pixi global install patchelf
       - name: Run tests
-        run: cargo test --all --features=tui,recipe-generation --verbose -- --nocapture
+        run: cargo test --workspace --all-targets --features=tui,recipe-generation --verbose -- --nocapture
       - name: Run patch apply tests
         # https://github.com/orgs/community/discussions/26261#discussioncomment-3251039
         if: ${{ contains(github.event.pull_request.labels.*.name, 'need-patch-apply-tests') }}
@@ -180,11 +180,10 @@ jobs:
       - name: Extract version
         shell: bash
         id: metadata
-        run:
-          | # also call this step outside of $(...) to make sure the status code is propagated
-            ${{ startsWith(matrix.os, 'windows') && 'choco install yq' || '' }}
-            yq '.package.version' Cargo.toml
-            echo "project-version=$(yq '.package.version' Cargo.toml)" >> $GITHUB_OUTPUT
+        run: | # also call this step outside of $(...) to make sure the status code is propagated
+          ${{ startsWith(matrix.os, 'windows') && 'choco install yq' || '' }}
+          yq '.package.version' Cargo.toml
+          echo "project-version=$(yq '.package.version' Cargo.toml)" >> $GITHUB_OUTPUT
 
       - name: Assert version in release
         if: startsWith(github.ref, 'refs/tags/v')

.gitignore

@@ -5,6 +5,7 @@ target/
 __pycache__/
 .pytest_cache/
 .DS_STORE
+checkouts
 
 # mkdocs
 .cache
@@ -14,3 +15,9 @@ site
 .pixi
 target-pixi
 *.conda
+
+# python
+.ipynb_checkpoints
+
+# generated tutorial markdown (from notebooks)
+docs/py-rattler-build/tutorials/

.prettierignore

@@ -0,0 +1,6 @@
+# Test data directories - may contain intentionally malformed or specific formatting
+test-data/
+**/test-data/
+
+# conda_build_config files have duplicate keys with selectors, which prettier doesn't support
+**/conda_build_config/

.prettierrc

@@ -0,0 +1,7 @@
+{
+  "printWidth": 100,
+  "bracketSpacing": false,
+  "tabWidth": 2,
+  "singleQuote": false,
+  "proseWrap": "preserve"
+}