Bring back the py-docs pixi environment (rerun-io#7818)

### What
- Resolves: rerun-io#6060

Pip installing things into pixi environments is always a recipe for
pain.
This is the way.

Pushed this branch to `docs-latest` and confirmed it succeeded:
- https://github.com/rerun-io/rerun/actions/runs/11390203895

### Checklist
* [x] I have read and agree to [Contributor
Guide](https://github.com/rerun-io/rerun/blob/main/CONTRIBUTING.md) and
the [Code of
Conduct](https://github.com/rerun-io/rerun/blob/main/CODE_OF_CONDUCT.md)
* [x] I've included a screenshot or gif (if applicable)
* [x] I have tested the web demo (if applicable):
* Using examples from latest `main` build:
[rerun.io/viewer](https://rerun.io/viewer/pr/7818?manifest_url=https://app.rerun.io/version/main/examples_manifest.json)
* Using full set of examples from `nightly` build:
[rerun.io/viewer](https://rerun.io/viewer/pr/7818?manifest_url=https://app.rerun.io/version/nightly/examples_manifest.json)
* [x] The PR title and labels are set such as to maximize their
usefulness for the next release's CHANGELOG
* [x] If applicable, add a new check to the [release
checklist](https://github.com/rerun-io/rerun/blob/main/tests/python/release_checklist)!
* [x] If have noted any breaking changes to the log API in
`CHANGELOG.md` and the migration guide

- [PR Build Summary](https://build.rerun.io/pr/7818)
- [Recent benchmark results](https://build.rerun.io/graphs/crates.html)
- [Wasm size tracking](https://build.rerun.io/graphs/sizes.html)

To run all checks from `main`, comment on the PR with `@rerun-bot
full-check`.

.github/workflows/contrib_checks.yml

@@ -61,21 +61,15 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Set up Python
-        uses: actions/setup-python@v4
+      - uses: prefix-dev/[email protected]
         with:
-          python-version: "3.9"
-
-      - name: Install Python dependencies
-        shell: bash
-        run: |
-          pip install --upgrade pip
-          pip install -r rerun_py/requirements-doc.txt
+          pixi-version: v0.25.0
+          environments: py-docs
 
       - name: Build via mkdocs
         shell: bash
         run: |
-          mkdocs build --strict -f rerun_py/mkdocs.yml
+          pixi run -e py-docs mkdocs build --strict -f rerun_py/mkdocs.yml
 
   no-codegen-changes:
     name: Check if running codegen would produce any changes

.github/workflows/on_push_docs.yml

@@ -59,6 +59,7 @@ jobs:
       - uses: prefix-dev/[email protected]
         with:
           pixi-version: v0.25.0
+          environments: py-docs
 
       - name: Install rerun-sdk
         run: |
@@ -72,11 +73,6 @@ jobs:
           #   because it is not actually going to run
           RUSTFLAGS: "-Awarnings --cfg disable_web_viewer_server"
         run: |
-          # Install latest release version of the Rerun SDK
-          # We don't actually want to build it, because then we'd be installing the dev version.
-          pixi run pip install -r rerun_py/requirements-doc.txt
-          pixi run pip install rerun-sdk==${{ needs.get-version.outputs.version }}
-
           pixi run search-index build \
             landing \
             --url "https://edge.meilisearch.com" \

.github/workflows/reusable_checks_python.yml

@@ -53,20 +53,12 @@ jobs:
         with:
           ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.ref || '' }}
 
-      - name: Set up Python
-        uses: actions/setup-python@v4
+      - uses: prefix-dev/[email protected]
         with:
-          python-version: "3.9"
-          cache: "pip"
-          cache-dependency-path: "rerun_py/requirements-doc.txt"
-
-      - name: Install Python dependencies
-        shell: bash
-        run: |
-          pip install --upgrade pip
-          pip install -r rerun_py/requirements-doc.txt
+          pixi-version: v0.25.0
+          environments: py-docs
 
       - name: Build via mkdocs
         shell: bash
         run: |
-          mkdocs build --strict -f rerun_py/mkdocs.yml
+          pixi run -e py-docs mkdocs build --strict -f rerun_py/mkdocs.yml

.github/workflows/reusable_deploy_docs.yml

@@ -71,18 +71,10 @@ jobs:
           fetch-depth: 0 # Don't do a shallow clone
           ref: ${{ inputs.RELEASE_COMMIT || (github.event_name == 'pull_request' && github.event.pull_request.head.ref || '') }}
 
-      - name: Set up Python
-        uses: actions/setup-python@v4
+      - uses: prefix-dev/[email protected]
         with:
-          python-version: "3.11"
-          cache: "pip"
-          cache-dependency-path: "rerun_py/requirements-doc.txt"
-
-      - name: Install Python dependencies
-        shell: bash
-        run: |
-          pip install --upgrade pip
-          pip install -r rerun_py/requirements-doc.txt
+          pixi-version: v0.25.0
+          environments: py-docs
 
       - name: Set up git author
         run: |
@@ -99,7 +91,7 @@ jobs:
         if: ${{ inputs.UPDATE_LATEST }}
         run: |
           git fetch
-          mike deploy -F rerun_py/mkdocs.yml --rebase -b gh-pages --prefix docs/python -u ${{inputs.PY_DOCS_VERSION_NAME}} stable
+          pixi run -e py-docs mike deploy -F rerun_py/mkdocs.yml --rebase -b gh-pages --prefix docs/python -u ${{inputs.PY_DOCS_VERSION_NAME}} stable
           git checkout gh-pages
           git checkout --orphan gh-pages-orphan
           git commit -m "Update docs for ${GITHUB_SHA}"
@@ -112,7 +104,7 @@ jobs:
         if: ${{ ! inputs.UPDATE_LATEST }}
         run: |
           git fetch
-          mike deploy -F rerun_py/mkdocs.yml --rebase -b gh-pages --prefix docs/python ${{inputs.PY_DOCS_VERSION_NAME}}
+          pixi run -e py-docs mike deploy -F rerun_py/mkdocs.yml --rebase -b gh-pages --prefix docs/python ${{inputs.PY_DOCS_VERSION_NAME}}
           git checkout gh-pages
           git checkout --orphan gh-pages-orphan
           git commit -m "Update docs for ${GITHUB_SHA}"

crates/build/re_dev_tools/src/build_search_index/README.md

@@ -10,12 +10,6 @@ Builds a Meilisearch index from our documentation.
   rustup install nightly
   rustup +nightly target add wasm32-unknown-unknown
   ```
-- A local installation of `rerun_sdk` and `rerun_py/requirements-doc.txt`
-  ```
-  pixi run py-build
-  pixi run pip install -r rerun_py/requirements-doc.txt
-  ```
-
 ### Usage
 
 Start a local `meilisearch` instance:

crates/build/re_dev_tools/src/build_search_index/ingest/python.rs

@@ -41,7 +41,7 @@ pub fn ingest(ctx: &Context) -> anyhow::Result<()> {
     // this dump is only used to obtain docstrings
     progress.set("griffe dump", ctx.is_tty());
     let dump: Dump = Command::new("griffe")
-        .with_args(["dump", "rerun_sdk"])
+        .with_args(["dump", "rerun_sdk", "-s", "rerun_py"])
         .parse_json()
         .context("either griffe or rerun_sdk is not installed, try running `pixi run pip install -r rerun_py/requirements-doc.txt` and building the SDK")?;
 
@@ -177,7 +177,7 @@ fn collect_docstrings(root: &Item) -> Docstrings {
         panic!("root must be a module");
     };
 
-    for member in &root.members {
+    for member in root.members.values() {
         member.visit(&mut visitor);
     }
 
@@ -233,7 +233,7 @@ enum Item {
 struct Module {
     name: String,
     // labels: Vec<String>,
-    members: Vec<Item>,
+    members: BTreeMap<String, Item>,
     docstring: Option<Docstring>,
 }
 
@@ -278,7 +278,7 @@ struct Docstring {
 struct Class {
     name: String,
     docstring: Option<Docstring>,
-    members: Vec<Item>,
+    members: BTreeMap<String, Item>,
 }
 
 type Dump = BTreeMap<String, Item>;
@@ -330,7 +330,7 @@ impl Visit for Item {
 impl Visit for Module {
     #[inline]
     fn visit<T: ?Sized + Visitor>(&self, visitor: &mut T) {
-        for member in &self.members {
+        for member in self.members.values() {
             member.visit(visitor);
         }
     }
@@ -354,7 +354,7 @@ impl Visit for Function {
 impl Visit for Class {
     #[inline]
     fn visit<T: ?Sized + Visitor>(&self, visitor: &mut T) {
-        for member in &self.members {
+        for member in self.members.values() {
             member.visit(visitor);
         }
     }