[llvm] [Github] Add OpenMP docs to Github docs action (PR #70529)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-github-workflow

Author: Aiden Grossman (boomanaiden154)

<details>
<summary>Changes</summary>

This patch enables building the openmp documentation through Github actions during PRs and at tip of tree to ensure that the documentation builds and that there aren't any Sphinx warnings in a manner that enables more rapid developer iteration without having to install documentation tooling.

---
Full diff: https://github.com/llvm/llvm-project/pull/70529.diff


1 Files Affected:

- (modified) .github/workflows/docs.yml (+9) 


``````````diff
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index e6af2f41167e0a1..b311a23f21af72e 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -21,6 +21,7 @@ on:
       - 'libcxx/docs/**'
       - 'libc/docs/**'
       - 'lld/docs/**'
+      - 'openmp/docs/**'
   pull_request:
     paths:
       - 'llvm/docs/**'
@@ -31,6 +32,7 @@ on:
       - 'libcxx/docs/**'
       - 'libc/docs/**'
       - 'lld/docs/**'
+      - 'openmp/docs/**'
 
 jobs:
   check-docs-build:
@@ -67,6 +69,8 @@ jobs:
               - 'libc/docs/**'
             lld:
               - 'lld/docs/**'
+            openmp:
+              - 'openmp/docs/**'
       - name: Fetch LLVM sources (PR)
         if: ${{ github.event_name == 'pull_request' }}
         uses: actions/checkout at v4
@@ -125,4 +129,9 @@ jobs:
         run: |
           cmake -B lld-build -GNinja -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_PROJECTS="lld" -DLLVM_ENABLE_SPHINX=ON ./llvm
           TZ=UTC ninja -C lld-build docs-lld-html
+      - name: Build OpenMP docs
+        if: steps.docs-changed-subprojects.outputs.openmp_any_changed == 'true'
+        run: |
+          cmake -B openmp-build -GNinja -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_PROJECTS="clang;openmp" -DLLVM_ENABLE_SPHINX=ON ./llvm
+          TZ=UTC ninja -C openmp-build docs-openmp-html
 

``````````

</details>


https://github.com/llvm/llvm-project/pull/70529