Optimize CI wrapper tests with prebuilt CLI

Co-authored-by: Ben Schellenberger <bschellenberger2600@users.noreply.github.com>

Author: cursoragent

.github/workflows/ci.yml

@@ -84,7 +84,7 @@ jobs:
         run: go vet ./...
 
       - name: Check gofmt
-        run: test -z "$(gofmt -l *.go)"
+        run: test -z "$(gofmt -l .)"
 
       - name: Run tests
         run: go test ./...
@@ -105,6 +105,16 @@ jobs:
         with:
           go-version: "stable"
 
+      - name: Build git-testkit CLI binary once
+        shell: bash
+        run: |
+          mkdir -p bin
+          if [[ "${{ matrix.os }}" == "windows-latest" ]]; then
+            go build -o ./bin/git-testkit-cli.exe ./cmd/git-testkit-cli
+          else
+            go build -o ./bin/git-testkit-cli ./cmd/git-testkit-cli
+          fi
+
       - name: Setup Python
         uses: actions/setup-python@v5
         with:
@@ -119,13 +129,17 @@ jobs:
 
       - name: Run Python wrapper smoke tests
         shell: bash
+        env:
+          GIT_TESTKIT_CLI: ${{ matrix.os == 'windows-latest' && './bin/git-testkit-cli.exe' || './bin/git-testkit-cli' }}
         run: |
           cd testkit/python
           python -m pip install -e ".[dev]"
           python -m pytest tests/test_fixtures.py tests/test_snapshots.py -v
 
       - name: Run Java wrapper smoke tests
         shell: bash
+        env:
+          GIT_TESTKIT_CLI: ${{ matrix.os == 'windows-latest' && './bin/git-testkit-cli.exe' || './bin/git-testkit-cli' }}
         run: |
           cd testkit/java
           mvn -Dtest=CliBridgeTest,SampleRepoFlowSmoke,SampleSnapshotFlowSmoke test

testkit/java/src/main/java/io/gitfire/testkit/CliBridge.java

@@ -151,7 +151,7 @@ private String toJson() {
   private final java.util.function.Function<String, CliResult> cliInvoker;
 
   public CliBridge(Path workspaceRoot) {
-    this(workspaceRoot, List.of("go", "run", "./cmd/git-testkit-cli"), null);
+    this(workspaceRoot, defaultCliCommandArgs(), null);
   }
 
   public CliBridge() {
@@ -163,7 +163,7 @@ public CliBridge(Path workspaceRoot, String cliCommand) {
   }
 
   CliBridge(Path workspaceRoot, java.util.function.Function<String, CliResult> cliInvoker) {
-    this(workspaceRoot, List.of("go", "run", "./cmd/git-testkit-cli"), cliInvoker);
+    this(workspaceRoot, defaultCliCommandArgs(), cliInvoker);
   }
 
   CliBridge(
@@ -182,6 +182,14 @@ private static List<String> shellCommand(String cliCommand) {
     return List.of("sh", "-lc", cliCommand);
   }
 
+  private static List<String> defaultCliCommandArgs() {
+    String configuredCli = System.getenv("GIT_TESTKIT_CLI");
+    if (configuredCli != null && !configuredCli.isBlank()) {
+      return shellCommand(configuredCli);
+    }
+    return List.of("go", "run", "./cmd/git-testkit-cli");
+  }
+
   private static boolean isWindows() {
     return System.getProperty("os.name").toLowerCase(Locale.ROOT).contains("win");
   }

testkit/python/git_testkit/cli.py

@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 import json
+import os
 import subprocess
 from dataclasses import dataclass, field
 from pathlib import Path
@@ -14,6 +15,9 @@ def _repo_root() -> Path:
 
 
 def _cli_cmd() -> list[str]:
+    cli = os.environ.get("GIT_TESTKIT_CLI", "").strip()
+    if cli:
+        return [cli]
     return ["go", "run", "./cmd/git-testkit-cli"]