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If I write
var moment = require('moment');
in my project, Node wastes a lot of time looking in places that do not actually contain the file, as this dtruss output shows.
PID/THRD RELATIVE SYSCALL(args) = return
7079/0x7cf313: 1244530 stat64("/Users/burke/code/api/api/models/node_modules/moment\0", 0x7FFF5FBFE5D8, 0x9) = -1 Err#2
7079/0x7cf313: 1244575 stat64("/Users/burke/code/api/api/models/node_modules/moment.js\0", 0x7FFF5FBFE578, 0x9) = -1 Err#2
7079/0x7cf313: 1244595 stat64("/Users/burke/code/api/api/models/node_modules/moment.json\0", 0x7FFF5FBFE578, 0x9) = -1 Err#2
7079/0x7cf313: 1244612 stat64("/Users/burke/code/api/api/models/node_modules/moment.node\0", 0x7FFF5FBFE578, 0x9) = -1 Err#2
7079/0x7cf313: 1244628 stat64("/Users/burke/code/api/api/models/node_modules/moment.coffee\0", 0x7FFF5FBFE578, 0x9) = -1 Err#2
7079/0x7cf313: 1244663 open("/Users/burke/code/api/api/models/node_modules/moment/package.json\0", 0x0, 0x1B6) = -1 Err#2
7079/0x7cf313: 1244694 stat64("/Users/burke/code/api/api/models/node_modules/moment/index.js\0", 0x7FFF5FBFE578, 0x1B6) = -1 Err#2
7079/0x7cf313: 1244713 stat64("/Users/burke/code/api/api/models/node_modules/moment/index.json\0", 0x7FFF5FBFE578, 0x1B6) = -1 Err#2
7079/0x7cf313: 1244729 stat64("/Users/burke/code/api/api/models/node_modules/moment/index.node\0", 0x7FFF5FBFE578, 0x1B6) = -1 Err#2
7079/0x7cf313: 1244745 stat64("/Users/burke/code/api/api/models/node_modules/moment/index.coffee\0", 0x7FFF5FBFE578, 0x1B6) = -1 Err#2
7079/0x7cf313: 1244767 stat64("/Users/burke/code/api/api/node_modules/moment\0", 0x7FFF5FBFE5D8, 0x1B6) = -1 Err#2
7079/0x7cf313: 1244788 stat64("/Users/burke/code/api/api/node_modules/moment.js\0", 0x7FFF5FBFE578, 0x1B6) = -1 Err#2
7079/0x7cf313: 1244805 stat64("/Users/burke/code/api/api/node_modules/moment.json\0", 0x7FFF5FBFE578, 0x1B6) = -1 Err#2
7079/0x7cf313: 1244821 stat64("/Users/burke/code/api/api/node_modules/moment.node\0", 0x7FFF5FBFE578, 0x1B6) = -1 Err#2
7079/0x7cf313: 1244837 stat64("/Users/burke/code/api/api/node_modules/moment.coffee\0", 0x7FFF5FBFE578, 0x1B6) = -1 Err#2
7079/0x7cf313: 1244862 open("/Users/burke/code/api/api/node_modules/moment/package.json\0", 0x0, 0x1B6) = -1 Err#2
7079/0x7cf313: 1244887 stat64("/Users/burke/code/api/api/node_modules/moment/index.js\0", 0x7FFF5FBFE578, 0x1B6) = -1 Err#2
7079/0x7cf313: 1244904 stat64("/Users/burke/code/api/api/node_modules/moment/index.json\0", 0x7FFF5FBFE578, 0x1B6) = -1 Err#2
7079/0x7cf313: 1244920 stat64("/Users/burke/code/api/api/node_modules/moment/index.node\0", 0x7FFF5FBFE578, 0x1B6) = -1 Err#2
7079/0x7cf313: 1244936 stat64("/Users/burke/code/api/api/node_modules/moment/index.coffee\0", 0x7FFF5FBFE578, 0x1B6) = -1 Err#2
7079/0x7cf313: 1244964 stat64("/Users/burke/code/api/node_modules/moment\0", 0x7FFF5FBFE5D8, 0x1B6) = 0 0
7079/0x7cf313: 1244990 stat64("/Users/burke/code/api/node_modules/moment.js\0", 0x7FFF5FBFE578, 0x1B6) = -1 Err#2
7079/0x7cf313: 1245015 stat64("/Users/burke/code/api/node_modules/moment.json\0", 0x7FFF5FBFE578, 0x1B6) = -1 Err#2
7079/0x7cf313: 1245038 stat64("/Users/burke/code/api/node_modules/moment.node\0", 0x7FFF5FBFE578, 0x1B6) = -1 Err#2
7079/0x7cf313: 1245488 madvise(0x1008AE000, 0x21000, 0x9) = 0 0
7079/0x7cf313: 1245503 stat64("/Users/burke/code/api/node_modules/moment.coffee\0", 0x7FFF5FBFE578, 0x9) = -1 Err#2
7079/0x7cf313: 1245612 open("/Users/burke/code/api/node_modules/moment/package.json\0", 0x0, 0x1B6) = 11 0
Is there a way to make Node not waste so much time looking in places that don't contain a node_modules directory? Like, I could set some kind of CHECK_HERE_FIRST=$HOME/code/api/node_modules environment variable and if the require is not for a relative path, that would be the first place that Node checked.
I could change all of my require lines to load the relative import but this seems cumbersome for a large project.
690
js documentation and found that it can be changed very easily using a simple "npm config" command. For example: npm config set prefix "E:\node_modules", From the next time onward, every global installation will save the node modules in "E:\node_modules" folder.
Global modules are installed in the /usr/local/lib/node_modules project directory in the standard system, which is the system's root.
To install a module from npm globally, you'll simply need to use the --global flag when running the install command to have the module install globally, rather than locally (to the current directory). Note: One caveat with global modules is that, by default, npm will install them to a system directory, not a local one.
It's simple. If you want to install all the node_modules from the package. json file you simply put: npm install in terminal (on the same directory where the package. json exists) and it would install all the node modules in the folder called node_modules .
This behavior (making too many stat) has been removed (see PR) from io.js v2.3.1, it will be available in the next major version of node.js.
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