Merge pull request #70 from Quramy/check_file_exist

fix: Check summary json file exsit

.github/workflows/test.yaml

@@ -69,3 +69,14 @@ jobs:
             ### Custom coverage-diff options
           check-criteria: lines
           coverage-threshold: 80
+
+      - name: Test action.yaml (ENOTENT)
+        uses: ./
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          base-summary-json: coverage/coverage-summary-base.json
+          head-summary-json: coverage/not-existing-coverage-summary.json
+          body-header: |
+            ### Custom coverage-diff options
+          check-criteria: lines
+          coverage-threshold: 80

src/index.ts

@@ -1,5 +1,6 @@
 import { cwd } from "node:process"
 import { relative } from "node:path"
+import { existsSync } from "node:fs"
 import { readFile } from "node:fs/promises"
 import { getInput, info } from "@actions/core"
 import { getOctokit, context } from "@actions/github"
@@ -36,6 +37,15 @@ async function main() {
   const coverageDecreaseThreshold = toInt(getInput("coverage-decrease-threshold"))
   const newFileCoverageThreshold = toInt(getInput("new-file-coverage-threshold"))
 
+  if (!existsSync(headSummaryJsonFilename)) {
+    info(`Skip because ${headSummaryJsonFilename} does not exist`)
+    return
+  }
+  if (!existsSync(baseSummaryJsonFileName)) {
+    info(`Skip bacause ${baseSummaryJsonFileName} does not exist`)
+    return
+  }
+
   const headSummary = JSON.parse(await readFile(headSummaryJsonFilename, "utf-8")) as JsonSummary
   const baseSummary = JSON.parse(await readFile(baseSummaryJsonFileName, "utf-8")) as JsonSummary