Added exec command.

doc/cli/exec.md

@@ -0,0 +1,15 @@
+npm-exec(1) -- Add local package binaries to path and execute command
+====================================
+
+## SYNOPSIS
+
+    npm exec
+
+## DESCRIPTION
+
+Adds the local package bin path (eg. node_modules/.bin) before executing the
+command.
+
+## SEE ALSO
+
+* npm-bin(1)

lib/exec.js

@@ -0,0 +1,18 @@
+module.exports = exec
+
+var npm = require("./npm.js")
+  , output = require("./utils/output.js")
+
+exec.usage = "npm exec\n(add local package binaries to path and execute command)"
+
+function exec (args, cb) {
+  var path = require("path")
+    , b = npm.bin
+    , PATH = (process.env.PATH || "").split(":")
+    , exec = require("child_process").exec
+
+  var cmd = "PATH=" + b + ":$PATH " + args.join(" ")
+  exec(cmd, function (error, stdout, stderr) {
+    output.write(stdout, function (er) { cb(er, stdout) })
+  })
+}

lib/npm.js

@@ -156,6 +156,7 @@ var commandCache = {}
               , "restart"
               , "run-script"
               , "completion"
+              , "exec"
               ]
   , plumbing = [ "build"
                , "unbuild"