Wrap Twirp responses like Octokit responses for consistency

package-lock.json

@@ -11,7 +11,9 @@
       "dependencies": {
         "@actions/artifact": "^2.0.0",
         "@actions/core": "^1.10.1",
-        "@actions/github": "^6.0.0"
+        "@actions/github": "^6.0.0",
+        "@octokit/request-error": "^5.0.1",
+        "http-status-messages": "^1.1.0"
       },
       "devDependencies": {
         "@vercel/ncc": "^0.38.1",
@@ -4670,6 +4672,11 @@
       "integrity": "sha512-H2iMtd0I4Mt5eYiapRdIDjp+XzelXQ0tFE4JS7YFwFevXXMmOp9myNrUvCg0D6ws8iqkRPBfKHgbwig1SmlLfg==",
       "dev": true
     },
+    "node_modules/http-status-messages": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/http-status-messages/-/http-status-messages-1.1.0.tgz",
+      "integrity": "sha512-zq9mKkNX6w6qYtNE0aAiH+urvEenUUIyoq8eAWQh2prhA5o03NETCOm/D2GIVt/qCFItt+23Sm1E7HyelPvi6w=="
+    },
     "node_modules/human-signals": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/human-signals/-/human-signals-2.1.0.tgz",

package.json

@@ -6,7 +6,9 @@
   "dependencies": {
     "@actions/artifact": "^2.0.0",
     "@actions/core": "^1.10.1",
-    "@actions/github": "^6.0.0"
+    "@actions/github": "^6.0.0",
+    "@octokit/request-error": "^5.0.1",
+    "http-status-messages": "^1.1.0"
   },
   "devDependencies": {
     "@vercel/ncc": "^0.38.1",

src/internal/api-client.js

@@ -1,16 +1,80 @@
 const core = require('@actions/core')
 const github = require('@actions/github')
 const { DefaultArtifactClient } = require('@actions/artifact')
+const { RequestError } = require('@octokit/request-error')
+const HttpStatusMessages = require('http-status-messages')
+
+function wrapTwirpResponseLikeOctokit(twirpResponse, requestOptions) {
+  // Specific response shape aligned with Octokit
+  const response = {
+    url: requestOptions.url,
+    status: 200,
+    headers: {
+      ...requestOptions.headers
+    },
+    data: twirpResponse
+  }
+  return response
+}
+
+// Mimic the errors thrown by Octokit for consistency.
+function wrapTwirpErrorLikeOctokit(twirpError, requestOptions) {
+  const rawErrorMsg = twirpError?.message || twirpError?.toString() || ''
+  const statusCodeMatch = rawErrorMsg.match(/Failed request: \((?<statusCode>\d+)\)/)
+  const statusCode = statusCodeMatch?.groups?.statusCode ?? 500
+
+  // Try to provide the best error message
+  const errorMsg =
+    rawErrorMsg ||
+    // Fallback to the HTTP status message based on the status code
+    HttpStatusMessages[statusCode] ||
+    // Or if the status code is unexpected...
+    `Unknown error (${statusCode})`
+
+  // RequestError is an Octokit-specific class
+  return new RequestError(errorMsg, statusCode, {
+    response: {
+      url: requestOptions.url,
+      status: statusCode,
+      headers: {
+        ...requestOptions.headers
+      },
+      data: rawErrorMsg ? { message: rawErrorMsg } : ''
+    },
+    request: requestOptions
+  })
+}
+
+function getArtifactsServiceOrigin() {
+  const resultsUrl = process.env.ACTIONS_RESULTS_URL
+  return resultsUrl ? new URL(resultsUrl).origin : ''
+}
 
 async function getArtifactMetadata({ artifactName }) {
   const artifactClient = new DefaultArtifactClient()
 
+  // Primarily for debugging purposes, accuracy is not critical
+  const requestOptions = {
+    method: 'POST',
+    url: `${getArtifactsServiceOrigin()}/twirp/github.actions.results.api.v1.ArtifactService/ListArtifacts`,
+    headers: {
+      'content-type': 'application/json'
+    }
+  }
+
   try {
     core.info(`Fetching artifact metadata for ${artifactName} in this workflow run`)
 
-    const response = await artifactClient.listArtifacts()
+    let response
+    try {
+      const twirpResponse = await artifactClient.listArtifacts()
+      response = wrapTwirpResponseLikeOctokit(twirpResponse, requestOptions)
+    } catch (twirpError) {
+      const octokitError = wrapTwirpErrorLikeOctokit(twirpError, requestOptions)
+      throw octokitError
+    }
 
-    const filteredArtifacts = response.artifacts.filter(artifact => artifact.name === artifactName)
+    const filteredArtifacts = response.data.artifacts.filter(artifact => artifact.name === artifactName)
 
     const artifactCount = filteredArtifacts.length
     core.debug(`List artifact count: ${artifactCount}`)

src/internal/deployment.js

@@ -62,12 +62,8 @@ class Deployment {
     core.debug(`Action ID: ${this.actionsId}`)
     core.debug(`Actions Workflow Run ID: ${this.workflowRun}`)
 
-    let artifactData
     try {
-      artifactData = await getArtifactMetadata({ artifactName: this.artifactName })
-    } catch (error) {
-      throw new Error(`Failed to create deployment: ${error.message}`)
-    }
+      const artifactData = await getArtifactMetadata({ artifactName: this.artifactName })
 
       if (artifactData?.size > ONE_GIGABYTE) {
         core.warning(
@@ -75,7 +71,6 @@ class Deployment {
         )
       }
 
-    try {
       const deployment = await createPagesDeployment({
         githubToken: this.githubToken,
         artifactId: artifactData.id,