javascript - 无法使用ImageMagick（Firebase Cloud Function）将（某些）eps转换为png

{ ChildProcessError: `convert -colorspace sRGB -density 300 input.eps -resize 400x400 output.png` failed with code 1 at ChildProcess.<anonymous> (/user_code/node_modules/child-process-promise/lib/index.js:132:23) at emitTwo (events.js:106:13) at ChildProcess.emit (events.js:191:7) at maybeClose (internal/child_process.js:920:16) at Socket.<anonymous> (internal/child_process.js:351:11) at emitOne (events.js:96:13) at Socket.emit (events.js:188:7) at Pipe._handle.close [as _onclose] (net.js:509:12) name: 'ChildProcessError', code: 1, childProcess: ChildProcess { domain: null, _events: { error: [Function: t], close: [Function] }, _eventsCount: 2, _maxListeners: undefined, _closesNeeded: 3, _closesGot: 3, connected: false, signalCode: null, exitCode: 1, killed: false, spawnfile: 'convert', _handle: null, spawnargs: [ 'convert', '-colorspace', 'sRGB', '-density', '300', 'input.eps', '-resize', '400x400', 'output.png' ], pid: 12, stdin: Socket { connecting: false, _hadError: false, _handle: null, _parent: null, _host: null, _readableState: [Object], readable: false, domain: null, _events: [Object], _eventsCount: 2, _maxListeners: undefined, _writableState: [Object], writable: false, allowHalfOpen: false, destroyed: true, _bytesDispatched: 0, _sockname: null, _pendingData: null, _pendingEncoding: '', server: null, _server: null, write: [Function: writeAfterFIN], _idleNext: null, _idlePrev: null, _idleTimeout: -1 }, stdout: Socket { connecting: false, _hadError: false, _handle: null, _parent: null, _host: null, _readableState: [Object], readable: false, domain: null, _events: [Object], _eventsCount: 3, _maxListeners: undefined, _writableState: [Object], writable: false, allowHalfOpen: false, destroyed: true, _bytesDispatched: 0, _sockname: null, _pendingData: null, _pendingEncoding: '', server: null, _server: null, _idleNext: null, _idlePrev: null, _idleTimeout: -1, write: [Function: writeAfterFIN] }, stderr: Socket { connecting: false, _hadError: false, _handle: null, _parent: null, _host: null, _readableState: [Object], readable: false, domain: null, _events: [Object], _eventsCount: 3, _maxListeners: undefined, _writableState: [Object], writable: false, allowHalfOpen: false, destroyed: true, _bytesDispatched: 0, _sockname: null, _pendingData: null, _pendingEncoding: '', server: null, _server: null, write: [Function: writeAfterFIN], read: [Function], _consuming: true, _idleNext: null, _idlePrev: null, _idleTimeout: -1 }, stdio: [ [Object], [Object], [Object] ] }, stdout: undefined, stderr: undefined }

/** * When an image is uploaded in the Storage bucket We generate a thumbnail automatically using * ImageMagick. * After the thumbnail has been generated and uploaded to Cloud Storage, * we write the public URL to Firestore. */ exports.generateThumbnail = functions.storage.object().onFinalize((object) => { // File and directory paths. const filePath = object.name; const contentType = object.contentType; // This is the image MIME type const fileDir = path.dirname(filePath); const fileName = path.basename(filePath); const thumbFilePath = path.normalize(path.join(fileDir, `${THUMB_PREFIX}${fileName}.png`)); const tempLocalFile = path.join(os.tmpdir(), filePath); const tempLocalDir = path.dirname(tempLocalFile); const tempLocalThumbFile = path.join(os.tmpdir(), thumbFilePath); // Don't run when deleting files if (object.resourceState === 'not_exists') { console.log('Deleted file'); return null; } // Check if it's a eps, ps or ai file before proceeding if (contentType != "application/postscript") { console.log("We don't need to transform this file"); return null; } // Exit if the image is already a thumbnail. if (fileName.startsWith(THUMB_PREFIX)) { console.log('Already a Thumbnail.'); return null; } // Cloud Storage files. const bucket = gcs.bucket(object.bucket); const file = bucket.file(filePath); const thumbFile = bucket.file(thumbFilePath); const metadata = { contentType: 'image/png', // To enable Client-side caching you can set the Cache-Control headers here. Uncomment below. // 'Cache-Control': 'public,max-age=3600', }; // Create the temp directory where the storage file will be downloaded. return mkdirp(tempLocalDir).then(() => { // Download file from bucket. return file.download({ destination: tempLocalFile }); }).then(() => { console.log("The file has been downloaded to", tempLocalFile); // Generate a thumbnail using ImageMagick. return spawn('convert', ['-colorspace', 'sRGB', '-density', '300', tempLocalFile, '-resize', '400x400', tempLocalThumbFile]); }).then(() => { console.log('Thumbnail created at', tempLocalThumbFile); // Uploading the Thumbnail. return bucket.upload(tempLocalThumbFile, { destination: thumbFilePath, metadata: metadata }); }).then(() => { console.log('Thumbnail uploaded to Storage at', thumbFilePath); // Once the image has been uploaded delete the local files to free up disk space. fs.unlinkSync(tempLocalFile); fs.unlinkSync(tempLocalThumbFile); // Get the Signed URLs for the thumbnail and original image. const config = { action: 'read', expires: '03-01-2500', }; return Promise.all([ thumbFile.getSignedUrl(config) ]); }).then((results) => { const thumbResult = results[0]; const thumbFileUrl = thumbResult[0]; console.log('Got Signed URLs: ' + results); console.log('Thumb result:' + thumbResult); console.log('Thumb file URL: ' + thumbFileUrl); // Add the URLs to the Database return admin.firestore().doc(fileDir).update({ thumb_src: thumbFileUrl, processed: true }).then(() => { // write is complete here console.log("Thumbnail URLs saved to database."); }); }).catch((error) => { console.error(error); }); });