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98 lines
2.7 KiB
98 lines
2.7 KiB
// XXX Todo:
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// On windows, create a .cmd file.
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// Read the #! in the file to see what it uses. The vast majority
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// of the time, this will be either:
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// "#!/usr/bin/env <prog> <args...>"
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// or:
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// "#!<prog> <args...>"
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//
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// Write a binroot/pkg.bin + ".cmd" file that has this line in it:
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// @<prog> <args...> %~dp0<target> %*
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module.exports = cmdShim
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cmdShim.ifExists = cmdShimIfExists
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var fs = require("graceful-fs")
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, chain = require("slide").chain
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, mkdir = require("./mkdir-p.js")
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, rm = require("rimraf")
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, log = require("./log.js")
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, path = require("path")
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, relativize = require("./relativize.js")
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, npm = require("../npm.js")
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, shebangExpr = /^#\!(?:\/usr\/bin\/env )?([^ \t]+)(.*)$/
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function cmdShimIfExists (from, to, cb) {
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fs.stat(from, function (er) {
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if (er) return cb()
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cmdShim(from, to, cb)
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})
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}
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function cmdShim (from, to, cb) {
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if (process.platform !== "win32") {
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return cb(new Error(".cmd shims only should be used on windows"))
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}
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chain
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( [ [fs, "stat", from]
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, [rm, to + ".cmd"]
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, [mkdir, path.dirname(to)]
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, [writeShim, from, to] ]
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, cb )
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}
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function writeShim (from, to, cb) {
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// make a cmd file
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// First, check if the bin is a #! of some sort.
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// If not, then assume it's something that'll be compiled, or some other
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// sort of script, and just call it directly.
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fs.readFile(from, "utf8", function (er, data) {
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if (er) return writeShim_(from, to, null, null, cb)
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var firstLine = data.trim().split(/\r*\n/)[0]
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, shebang = firstLine.match(shebangExpr)
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if (!shebang) return writeShim_(from, to, null, null, cb)
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var prog = shebang[1]
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, args = shebang[2] || ""
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return writeShim_(from, to, prog, args, cb)
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})
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}
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function writeShim_ (from, to, prog, args, cb) {
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var target = relativize(from, to).split("/").join("\\")
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, longProg
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args = args || ""
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if (!prog) {
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prog = "\"%~dp0\\" + target + "\""
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args = ""
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target = ""
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} else {
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longProg = "\"%~dp0\"\\\"" + prog + ".exe\""
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target = "\"%~dp0\\" + target + "\""
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}
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// @IF EXIST "%~dp0"\"node.exe" (
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// "%~dp0\node.exe" "%~dp0\.\node_modules\npm\bin\npm-cli.js" %*
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// ) ELSE (
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// node "%~dp0\.\node_modules\npm\bin\npm-cli.js" %*
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// )
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var cmd
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if (longProg) {
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cmd = "@IF EXIST " + longProg + " (\r\n"
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+ " " + longProg + " " + args + " " + target + " %*\r\n"
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+ ") ELSE (\r\n"
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+ " " + prog + " " + args + " " + target + " %*\r\n"
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+ ")"
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} else {
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cmd = prog + " " + args + " " + target + " %*\r\n"
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}
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cmd = ":: Created by npm, please don't edit manually.\r\n" + cmd
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fs.writeFile(to + ".cmd", cmd, "utf8", function (er) {
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if (er) {
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log.warn("Could not write "+to+".cmd", "cmdShim")
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}
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cb(er)
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})
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}
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