Question

在我的gulpfile.js我有spawn()这会触发mysqldump：

let mysqldump = spawn('mysqldump', [
  '-v',
  '-u',
  'my_db_name',
  '--password=' + process.env.MY_PRODUCTION_PASSWORD,
  '-h',
  'my_domain.com',
  'my_db_name',
  '< ' + dump_filename
], {
  stdio: 'inherit'
});

虽然我收到有关最后一部分的错误消息。它说Couldn't find table: "< Development-dump.sql"让我相信最后一行没有使用转储文件作为输入。如何让spawn将文件用作这样的输入？

Answer 1

发生错误是因为spawn命令无法解析输入。您需要将转储文件写入input命令的spawn流：

// Define the spawned process without the input
let mysqldump = spawn('mysqldump', [
  '-v',
  '-u',
  'my_db_name',
  '--password=' + process.env.MY_PRODUCTION_PASSWORD,
  '-h',
  'my_domain.com',
  'my_db_name'
]);

// Write the dump file to the input stream.
mysqldump.stdin.write(//path to dump file);
mysqldump.stdin.end();

Answer 2

您似乎想使用var CLIENT_ID = 'MY CLIENT_ID GOES HERE'; var SCOPES = ["https://www.googleapis.com/auth/calendar"]; checkAuth(); function checkAuth() { gapi.auth.authorize( { 'client_id': CLIENT_ID, 'scope': SCOPES.join(' '), 'immediate': true }, handleAuthResult); } function handleAuthResult(authResult) { if (authResult && !authResult.error) { console.log(authResult); loadCalendarApi(); } else { gapi.auth.authorize( {client_id: CLIENT_ID, scope: SCOPES, immediate: false}, handleAuthResult); return false; } } function loadCalendarApi() { gapi.client.load('calendar', 'v3', createEvent); } function createEvent(){ var resource = { "summary": eventName, "location": location, "description": rid, "start": { "dateTime": startNew }, "end": { "dateTime": endNew }, }; var request = gapi.client.calendar.events.insert({ 'calendarId': 'MY CALENDAR ID GOES HERE@group.calendar.google.com', 'resource': resource }); request.execute(function(resp) { console.log(resp); callback(); }); }重定向标准输入，以下代码可能有效。

如何使用Node的child_process.spawn将文件作为输入？

2 个答案: