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https://github.com/Z3Prover/z3
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Replace agentic F* build pipeline with standard GitHub Actions workflow (#9745)
This change replaces the existing agentic workflow with a standard
GitHub Actions workflow that builds Z3 and then builds FStar against
that Z3. The workflow remains parameterized for both toolchains and
supports exercising `smt.ho_matching` via configurable Z3 runtime args
and FStar `OTHERFLAGS`.
- **Workflow migration (agentic → standard)**
- Replaced `.github/workflows/fstar-master-build.md` + `.lock.yml` with
a single native workflow: `.github/workflows/fstar-master-build.yml`.
- Removed dependency on agentic frontmatter, safe-outputs, and
runtime-import flow.
- **Configurable build inputs**
- Added `workflow_dispatch` inputs for:
- `z3_ref`, `z3_cmake_args`, `z3_runtime_args`
- `fstar_ref`, `fstar_opam_switch`, `fstar_otherflags`
- `discussion_category`
- Defaults preserve the requested ho-matching exercise path:
- `z3_runtime_args: smt.ho_matching=true`
- `fstar_otherflags: --smt.ho_matching true`
- **Build and integration flow**
- Builds Z3 from configured ref in `build/release` with CMake+Ninja.
- Clones/builds FStar from configured ref, wiring it to the just-built
Z3 (including version override and PATH aliases expected by FStar).
- **Discussion reporting without agents**
- Adds an `actions/github-script` step that:
- resolves discussion category ID by name,
- posts a summary discussion with inputs, produced versions, commit, and
workflow run URL.
- **Failure diagnostics hardening**
- Added explicit failure messages for missing parsed Z3 version and
missing FStar executable.
- Added defensive handling when parsing generated version text.
```yaml
on:
workflow_dispatch:
inputs:
z3_runtime_args:
default: "smt.ho_matching=true"
fstar_otherflags:
default: "--smt.ho_matching true"
```
---------
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
This commit is contained in:
Copilot
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185
.github/workflows/fstar-master-build.yml
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.github/workflows/fstar-master-build.yml
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name: Build FStar master with Z3 master
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on:
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schedule:
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- cron: "9 4 * * *"
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workflow_dispatch:
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inputs:
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z3_ref:
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description: Z3 ref to checkout and build
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required: false
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default: master
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z3_cmake_args:
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description: Extra CMake arguments for Z3 build
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required: false
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default: ""
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z3_runtime_args:
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description: "Extra Z3 runtime args (example: smt.ho_matching=true)"
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required: false
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default: "smt.ho_matching=true"
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fstar_ref:
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description: FStar ref to checkout and build
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required: false
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default: master
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fstar_opam_switch:
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description: OCaml switch for FStar build
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required: false
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default: "4.14.2"
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fstar_otherflags:
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description: "Extra FStar OTHERFLAGS (example: --smt.ho_matching true)"
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required: false
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default: "--smt.ho_matching true"
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discussion_category:
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description: Discussion category name
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required: false
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default: "Agentic Workflows"
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permissions:
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contents: read
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discussions: write
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concurrency:
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group: ${{ github.workflow }}
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cancel-in-progress: false
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jobs:
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build-and-report:
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runs-on: ubuntu-latest
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timeout-minutes: 180
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env:
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Z3_REF: ${{ github.event.inputs.z3_ref || 'master' }}
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Z3_CMAKE_ARGS: ${{ github.event.inputs.z3_cmake_args || '' }}
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Z3_RUNTIME_ARGS: ${{ github.event.inputs.z3_runtime_args || 'smt.ho_matching=true' }}
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FSTAR_REF: ${{ github.event.inputs.fstar_ref || 'master' }}
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FSTAR_OPAM_SWITCH: ${{ github.event.inputs.fstar_opam_switch || '4.14.2' }}
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FSTAR_OTHERFLAGS: ${{ github.event.inputs.fstar_otherflags || '--smt.ho_matching true' }}
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DISCUSSION_CATEGORY: ${{ github.event.inputs.discussion_category || 'Agentic Workflows' }}
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steps:
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- name: Checkout Z3
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uses: actions/checkout@v6.0.3
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with:
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ref: ${{ env.Z3_REF }}
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fetch-depth: 1
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- name: Install dependencies
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run: |
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set -euo pipefail
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sudo apt-get update -y
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sudo apt-get install -y cmake ninja-build python3 git curl unzip opam m4 pkg-config libgmp-dev
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- name: Build Z3
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run: |
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set -euo pipefail
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mkdir -p /tmp/gh-aw/agent
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cmake -S . -B build/release -G Ninja -DCMAKE_BUILD_TYPE=Release $Z3_CMAKE_ARGS
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ninja -C build/release z3
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./build/release/z3 --version | tee /tmp/gh-aw/agent/z3-version.txt
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printf '(check-sat)\n' | ./build/release/z3 $Z3_RUNTIME_ARGS -in | tee /tmp/gh-aw/agent/z3-runtime-check.txt
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- name: Prepare Z3 aliases for FStar
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run: |
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set -euo pipefail
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mkdir -p /tmp/gh-aw/agent/z3-bin
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ln -sf "$GITHUB_WORKSPACE/build/release/z3" /tmp/gh-aw/agent/z3-bin/z3
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ln -sf "$GITHUB_WORKSPACE/build/release/z3" /tmp/gh-aw/agent/z3-bin/z3-4.8.5
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ln -sf "$GITHUB_WORKSPACE/build/release/z3" /tmp/gh-aw/agent/z3-bin/z3-4.13.3
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/tmp/gh-aw/agent/z3-bin/z3 --version
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- name: Build FStar
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run: |
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set -euo pipefail
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rm -rf /tmp/gh-aw/agent/FStar
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git clone --depth=1 --branch "$FSTAR_REF" https://github.com/FStarLang/FStar.git /tmp/gh-aw/agent/FStar
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cd /tmp/gh-aw/agent/FStar
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echo "FStar commit: $(git rev-parse HEAD)" | tee /tmp/gh-aw/agent/fstar-commit.txt
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opam init --disable-sandboxing --yes
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opam switch create "$FSTAR_OPAM_SWITCH" --yes || opam switch "$FSTAR_OPAM_SWITCH"
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eval "$(opam env --switch="$FSTAR_OPAM_SWITCH")"
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opam install --deps-only . --yes
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Z3_VERSION="$(sed -E -n 's/^Z3 version ([0-9]+\.[0-9]+\.[0-9]+).*/\1/p' /tmp/gh-aw/agent/z3-version.txt | head -1)"
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test -n "$Z3_VERSION" || { echo "Error: Failed to extract Z3 version from /tmp/gh-aw/agent/z3-version.txt (expected: 'Z3 version X.Y.Z')"; cat /tmp/gh-aw/agent/z3-version.txt || true; exit 1; }
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PATH="/tmp/gh-aw/agent/z3-bin:$PATH" OTHERFLAGS="--z3version $Z3_VERSION $FSTAR_OTHERFLAGS" make -j"$(nproc)"
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test -x /tmp/gh-aw/agent/FStar/out/bin/fstar.exe || { echo "Error: FStar binary not found or not executable at /tmp/gh-aw/agent/FStar/out/bin/fstar.exe"; exit 1; }
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/tmp/gh-aw/agent/FStar/out/bin/fstar.exe --version | tee /tmp/gh-aw/agent/fstar-version.txt
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- name: Create discussion summary
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uses: actions/github-script@v9
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env:
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RUN_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
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with:
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script: |
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const fs = require('fs');
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const z3VersionText = fs.readFileSync('/tmp/gh-aw/agent/z3-version.txt', 'utf8').trim();
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const fstarVersionFile = fs.readFileSync('/tmp/gh-aw/agent/fstar-version.txt', 'utf8').trim();
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const fstarVersionText = fstarVersionFile ? fstarVersionFile.split('\n')[0] : 'unknown';
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const fstarCommitLine = fs.readFileSync('/tmp/gh-aw/agent/fstar-commit.txt', 'utf8').trim();
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const fstarCommit = fstarCommitLine.replace(/^FStar commit:\s*/, '');
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const date = new Date().toISOString().slice(0, 10);
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const owner = context.repo.owner;
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const repo = context.repo.repo;
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const categoryName = process.env.DISCUSSION_CATEGORY;
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const categoryQuery = await github.graphql(
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`query($owner:String!, $repo:String!) {
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repository(owner:$owner, name:$repo) {
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id
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discussionCategories(first:50) {
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nodes { id name }
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}
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}
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}`,
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{ owner, repo }
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);
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const categories = categoryQuery.repository.discussionCategories.nodes || [];
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const normalized = categoryName.trim().toLowerCase();
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const category = categories.find(c => c.name.toLowerCase() === normalized);
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if (!category) {
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throw new Error(`Discussion category '${categoryName}' not found`);
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}
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const body = [
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`### Build status`,
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`- ✅ Z3 build completed`,
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`- ✅ FStar build completed`,
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``,
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`### Inputs used`,
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`- z3_ref: \`${process.env.Z3_REF}\``,
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`- z3_cmake_args: \`${process.env.Z3_CMAKE_ARGS}\``,
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`- z3_runtime_args: \`${process.env.Z3_RUNTIME_ARGS}\``,
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`- fstar_ref: \`${process.env.FSTAR_REF}\``,
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`- fstar_opam_switch: \`${process.env.FSTAR_OPAM_SWITCH}\``,
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`- fstar_otherflags: \`${process.env.FSTAR_OTHERFLAGS}\``,
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``,
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`### Produced versions`,
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`- Z3: \`${z3VersionText}\``,
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`- FStar: \`${fstarVersionText}\``,
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`- FStar commit: \`${fstarCommit}\``,
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``,
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`### Run`,
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`- Workflow run: ${process.env.RUN_URL}`
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].join('\n');
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await github.graphql(
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`mutation($repositoryId:ID!, $categoryId:ID!, $title:String!, $body:String!) {
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createDiscussion(input:{
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repositoryId:$repositoryId,
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categoryId:$categoryId,
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title:$title,
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body:$body
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}) {
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discussion { url }
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}
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}`,
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{
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repositoryId: categoryQuery.repository.id,
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categoryId: category.id,
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title: `FStar build with configurable Z3 inputs — ${date}`,
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body
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}
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);
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