wallet-core/node_modules/which
Florian Dold 82f2b76e25
Reorganize module loading.
We now use webpack instead of SystemJS, effectively bundling modules
into one file (plus commons chunks) for every entry point.  This results
in a much smaller extension size (almost half).  Furthermore we use
yarn/npm even for extension run-time dependencies.  This relieves us
from manually vendoring and building dependencies.  It's also easier to
understand for new developers familiar with node.
2017-04-24 16:14:29 +02:00
..
bin add node_modules to address #4364 2016-10-10 03:43:44 +02:00
CHANGELOG.md Reorganize module loading. 2017-04-24 16:14:29 +02:00
LICENSE add node_modules to address #4364 2016-10-10 03:43:44 +02:00
package.json Reorganize module loading. 2017-04-24 16:14:29 +02:00
README.md add node_modules to address #4364 2016-10-10 03:43:44 +02:00
which.js node modules 2016-11-13 21:53:45 +01:00

which

Like the unix which utility.

Finds the first instance of a specified executable in the PATH environment variable. Does not cache the results, so hash -r is not needed when the PATH changes.

USAGE

var which = require('which')

// async usage
which('node', function (er, resolvedPath) {
  // er is returned if no "node" is found on the PATH
  // if it is found, then the absolute path to the exec is returned
})

// sync usage
// throws if not found
var resolved = which.sync('node')

// Pass options to override the PATH and PATHEXT environment vars.
which('node', { path: someOtherPath }, function (er, resolved) {
  if (er)
    throw er
  console.log('found at %j', resolved)
})

CLI USAGE

Same as the BSD which(1) binary.

usage: which [-as] program ...

OPTIONS

You may pass an options object as the second argument.

  • path: Use instead of the PATH environment variable.
  • pathExt: Use instead of the PATHEXT environment variable.
  • all: Return all matches, instead of just the first one. Note that this means the function returns an array of strings instead of a single string.