--- name: run-apichief description: 'Run ApiChief in the EF Core repo to emit baselines, summaries, deltas, review files, or breaking-change checks. Use when refreshing `*.baseline.json`, preparing API review artifacts, or validating API changes.' user-invocable: false --- # Run ApiChief Use the [ApiChief tool](../../../eng/Tools/ApiChief/README.md) to inspect or refresh EF Core public API baselines for projects under `src/`. ApiChief can run against either a compiled assembly or a previously emitted baseline JSON file. Prefer the repo-local `.dotnet` SDK and the checked-in build scripts in this repo. ## Commands | Command | Description | Extra arguments | | --- | --- | --- | | `emit baseline` | Emit a JSON API baseline | `-o ` | | `emit summary` | Emit a human-readable API summary | `-o `, `-x` | | `emit review` | Emit API review files | `-o `, `-n` | | `emit delta` | Emit a delta against an existing baseline, or markdown diff review files | ``, `-o `, `--diff` | | `check breaking` | Fail if breaking changes exist vs. a baseline | `` | Default to `emit baseline` if the user only asks to "run ApiChief". ## Workflow ### 1. Identify the target project(s) - Match user intent against project folders under `src/`. - Ask for clarification only if the target is ambiguous. - The checked-in baseline path convention in this repo is `src//.baseline.json`. - If asked just to update the baselines, run EFCore.ApiBaseline.Tests tests and skip the rest of the steps below. ### 2. Prepare the environment Always initialize the repo environment before building or running the tool: ```powershell .\restore.cmd . .\activate.ps1 dotnet build .\eng\Tools\ApiChief\ApiChief.csproj --nologo --verbosity q ``` On Bash: ```bash ./restore.sh . ./activate.sh dotnet build ./eng/Tools/ApiChief/ApiChief.csproj --nologo --verbosity q ``` ### 3. Ensure the target binaries exist ApiChief operates on built assemblies. If the target project has not been built yet, build it first. Preferred options: ```powershell # Refreshes checked-in baselines after the normal build .\build.cmd -c Debug # Or build a single project when working narrowly dotnet build .\src\\.csproj --nologo --verbosity q ``` Use the highest available `net*` TFM under `artifacts/bin///` by default. Avoid `netstandard*` and `net4*` targets unless the user explicitly asks for them. ### 4. Locate the built ApiChief binary and target assembly ```powershell $dotnet = ".\\.dotnet\\dotnet" $apiChiefProject = ".\\eng\\Tools\\ApiChief\\ApiChief.csproj" $apiChief = (& $dotnet msbuild $apiChiefProject --getProperty:TargetPath -p:Configuration=Debug --nologo).Trim() $name = "" $tfm = Get-ChildItem ".\\artifacts\\bin\\$name\\Debug" -Directory | Where-Object { $_.Name -match '^net\d+\.\d+$' } | Sort-Object { [version]($_.Name -replace '^net', '') } -Descending | Select-Object -First 1 -ExpandProperty Name $assemblyName = (& $dotnet msbuild ".\\src\\$name\\$name.csproj" --getProperty:AssemblyName -p:Configuration=Debug --nologo).Trim() if ([string]::IsNullOrWhiteSpace($assemblyName)) { $assemblyName = $name } $assemblyPath = ".\\artifacts\\bin\\$name\\Debug\\$tfm\\$assemblyName.dll" ``` Before running, report the selected TFM if it matters for the task. ### 5. Run the requested ApiChief command ```powershell # Emit a baseline & $dotnet $apiChief $assemblyPath emit baseline -o ".\\src\\$name\\$name.baseline.json" # Emit a summary & $dotnet $apiChief $assemblyPath emit summary # Emit a delta & $dotnet $apiChief $assemblyPath emit delta ".\\src\\$name\\$name.baseline.json" -o ".\\artifacts\\tmp\\$name.delta.json" # Check for breaking changes & $dotnet $apiChief $assemblyPath check breaking ".\\src\\$name\\$name.baseline.json" # Emit API review artifacts & $dotnet $apiChief $assemblyPath emit review -o ".\\artifacts\\tmp\\API.$name" # Emit GitHub-friendly markdown diff files against a baseline & $dotnet $apiChief $assemblyPath emit delta ".\\src\\$name\\$name.baseline.json" --diff -o ".\\artifacts\\tmp\\API.$name.Diff" ``` `emit delta` also supports passing a `.json` file as the current input instead of a DLL. ### 6. Review or clean up baseline changes After `emit baseline`: - preserve the original BOM and trailing newline behavior of the committed file - revert version-only diffs in the `"Name"` field - inspect removed `//` instruction comments in previous baselines and carry forward any still-needed manual edits - if those comments reference GitHub issues, check whether the underlying issue is still open before reapplying the workaround ### 7. Report results clearly - list the processed project(s) - show the chosen TFM(s) - report the output path(s) - for `check breaking`, state pass/fail - for `emit delta` and `emit delta --diff`, mention that exit code `0` means changes, `2` means no changes, and `-1` means an error - prefer `emit delta --diff` output because it generates ready-to-post ```diff fenced markdown split across per-type `.md` files

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