add skip-fetch-gh-pages input and use it in CI check

for ensuring to remove the effect from other jobs

.github/workflows/ci.yml

@@ -30,6 +30,7 @@ jobs:
           name: Rust Benchmark
           tool: 'cargo'
           output-file-path: examples/rust/output.txt
+          skip-fetch-gh-pages: true
       - run: node ./scripts/ci_validate_modification.js before_data.js 'Rust Benchmark'
   go:
     name: Run Go benchmark example
@@ -59,6 +60,7 @@ jobs:
           name: Go Benchmark
           tool: 'go'
           output-file-path: examples/go/output.txt
+          skip-fetch-gh-pages: true
       - run: node ./scripts/ci_validate_modification.js before_data.js 'Go Benchmark'
   benchmarkjs:
     name: Run JavaScript benchmark example
@@ -87,6 +89,7 @@ jobs:
           name: Benchmark.js Benchmark
           tool: 'benchmarkjs'
           output-file-path: examples/benchmarkjs/output.txt
+          skip-fetch-gh-pages: true
       - run: node ./scripts/ci_validate_modification.js before_data.js 'Benchmark.js Benchmark'
   pytest-benchmark:
     name: Run Pytest benchmark example
@@ -119,6 +122,7 @@ jobs:
           name: Python Benchmark with pytest-benchmark
           tool: 'pytest'
           output-file-path: examples/pytest/output.json
+          skip-fetch-gh-pages: true
       - run: node ./scripts/ci_validate_modification.js before_data.js 'Python Benchmark with pytest-benchmark'
   unit-tests:
     name: Run unit tests

action.yml

@@ -2,8 +2,8 @@ name: 'Continuous Benchmark'
 author: 'rhysd <https://rhysd.github.io>'
 description: 'Continuous Benchmark using GitHub pages as dash board for keeping performance'
 branding:
-    icon: 'fast-forward'
-    color: 'blue'
+  icon: 'fast-forward'
+  color: 'blue'
 
 inputs:
   name:
@@ -31,6 +31,10 @@ inputs:
     description: 'Push GitHub Pages branch to remote automatically. This option requires github-token input'
     required: false
     default: false
+  skip-fetch-gh-pages:
+    description: 'Skip pulling GitHub Pages branch before generating an auto commit'
+    required: false
+    default: false
 
 runs:
   using: 'node12'

config.ts

@@ -12,6 +12,7 @@ export interface Config {
     benchmarkDataDirPath: string;
     githubToken: string | undefined;
     autoPush: boolean;
+    skipFetchGhPages: boolean;
 }
 
 export const VALID_TOOLS: ToolType[] = ['cargo', 'go', 'benchmarkjs', 'pytest'];
@@ -107,6 +108,7 @@ export async function configFromJobInput(): Promise<Config> {
     const name: string = core.getInput('name');
     const githubToken: string | undefined = core.getInput('github-token') || undefined;
     const autoPush = getBoolInput('auto-push');
+    const skipFetchGhPages = getBoolInput('skip-fetch-gh-pages');
 
     validateToolType(tool);
     outputFilePath = await validateOutputFilePath(outputFilePath);
@@ -115,5 +117,14 @@ export async function configFromJobInput(): Promise<Config> {
     validateName(name);
     validateAutoPush(autoPush, githubToken);
 
-    return { name, tool, outputFilePath, ghPagesBranch, benchmarkDataDirPath, githubToken, autoPush };
+    return {
+        name,
+        tool,
+        outputFilePath,
+        ghPagesBranch,
+        benchmarkDataDirPath,
+        githubToken,
+        autoPush,
+        skipFetchGhPages,
+    };
 }

test/config.ts

@@ -13,6 +13,7 @@ function mockInputs(newInputs: Inputs) {
     delete inputs['benchmark-data-dir-path'];
     delete inputs['github-token'];
     delete inputs['auto-push'];
+    delete inputs['skip-fetch-gh-pages'];
     Object.assign(inputs, newInputs);
 }
 

write.ts

@@ -84,7 +84,7 @@ async function pushGitHubPages(token: string, branch: string) {
 }
 
 export async function writeBenchmark(bench: Benchmark, config: Config) {
-    const { name, tool, ghPagesBranch, benchmarkDataDirPath, githubToken, autoPush } = config;
+    const { name, tool, ghPagesBranch, benchmarkDataDirPath, githubToken, autoPush, skipFetchGhPages } = config;
     const dataPath = path.join(benchmarkDataDirPath, 'data.js');
 
     /* eslint-disable @typescript-eslint/camelcase */
@@ -95,7 +95,7 @@ export async function writeBenchmark(bench: Benchmark, config: Config) {
     await git.cmd('switch', ghPagesBranch);
 
     try {
-        if (!isPrivateRepo || githubToken) {
+        if (!skipFetchGhPages && (!isPrivateRepo || githubToken)) {
             await git.pull(githubToken, ghPagesBranch);
         } else if (isPrivateRepo) {
             core.warning(