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exports = module.exports = cache
exports.read = read
exports.clean = clean
exports.unpack = unpack
var mkdir = require("./utils/mkdir-p")
, exec = require("./utils/exec")
, pipe = exec.pipe
, spawn = exec.spawn
, fetch = require("./utils/fetch")
, npm = require("../npm")
, fs = require("./utils/graceful-fs")
, rm = require("./utils/rm-rf")
, readJson = require("./utils/read-json")
, registry = require("./utils/registry")
, log = require("./utils/log")
, path = require("path")
, sys = require("./utils/sys")
, output = require("./utils/output")
cache.usage = "npm cache add <tarball file>"
+ "\nnpm cache add <folder>"
+ "\nnpm cache add <tarball url>"
+ "\nnpm cache add <name>@<version>"
+ "\nnpm cache ls [<path>]"
+ "\nnpm cache clean [<pkg>[@<version>]]"
function cache (args, cb) {
var cmd = args.shift()
switch (cmd) {
case "clean": return clean(args, cb)
case "ls": return ls(args, cb)
case "add": return add(args, cb)
default: return cb(new Error(
"Invalid cache action: "+cmd))
}
}
// if the pkg and ver are in the cache, then
// just do a readJson and return.
// if they're not, then fetch them from the registry.
var cacheSeen = {}
function read (name, ver, cb) {
var jsonFile = path.join(npm.cache, name, ver, "package.json")
function c (er, data) {
if (!er) cacheSeen[data._id] = data
return cb(er, data)
}
if (name+"@"+ver in cacheSeen) {
return cb(null, cacheSeen[name+"@"+ver])
}
readJson(jsonFile, function (er, data) {
if (er) return addNameVersion(name, ver, c)
c(er, data)
})
}
// npm cache ls [<pkg>[@<ver>]]
function ls (args, cb) {
if (args[0] && args[0].indexOf("@") !== -1) {
args = args[0].split("@")
}
var show = path.join.apply(path, args)
, read = npm.cache
, msg = "cache ls"+(show?" "+show:"")
read = path.join(read, show)
mkdir(npm.cache, function (er) {
if (er) return log.er(cb, "no cache dir")(er)
fs.readdir(read, function (er, files) {
if (er) {
log("nothing found", "cache")
return cb()
}
files = files.filter(function (f) { return f !== "." && f !== ".." })
if (!files.length) {
log("nothing found", "cache")
return cb()
}
var prefix = (show ? show + "/" : "")
output.write(npm.config.get("outfd"), prefix+files.join("\n"+prefix), cb_)
function cb_ () { cb(null, files) }
})
})
}
// npm cache clean [<pkg> [<ver>]]
function clean (args, cb) {
if (!cb) cb = args, args = []
if (!args) args = []
if (args[0] && args[0].indexOf("@") !== -1) {
args = args[0].split("@")
}
var pkg = args.shift()
, ver = args.shift()
, clean = npm.cache
if (pkg) clean = path.join(clean, pkg)
if (ver) clean = path.join(clean, ver)
cb = log.er(cb, "Could not remove "+clean)
rm(clean, cb)
}
// npm cache add <tarball-url>
// npm cache add <pkg> <ver>
// npm cache add <tarball>
// npm cache add <folder>
exports.add = function (pkg, ver, cb) {
if (!cb && typeof ver === "function") cb = ver, ver = null
return add([pkg, ver], cb)
}
function add (args, cb) {
if (args[0] && args[0].indexOf("@") !== -1) {
args = args[0].split("@")
}
var pkg = args.shift()
, ver = args.shift()
if (!pkg && !ver) {
var usage = "Usage:\n"
+ " npm cache add <tarball-url>\n"
+ " npm cache add <pkg> <ver>\n"
+ " npm cache add <tarball>\n"
+ " npm cache add <folder>\n"
return cb(new Error(usage))
}
if (pkg && ver) return addNameVersion(pkg, ver, cb)
if (pkg.match(/^https?:\/\//)) return addRemoteTarball(pkg, cb)
else addLocal(pkg, cb)
}
function addRemoteTarball (url, cb) {
var tmp = path.join(npm.tmp, Date.now()+"-"+Math.random()+".tgz")
fetch(url, tmp, function (er) {
if (er) return log.er(cb, "failed to fetch "+url)(er)
addLocalTarball(tmp, cb)
})
}
function addNameVersion (name, ver, cb) {
registry.get(name, ver, function (er, data, json) {
if (er) return cb(er)
var folder = path.join(npm.cache, data.name, data.version)
, tgz = path.join(folder, "package.tgz")
mkdir(folder, function (er) {
if (er) return cb(er)
if (!data.dist || !data.dist.tarball) return cb(new Error(
"No dist.tarball in package data"))
fetch(data.dist.tarball, tgz, function (er) {
if (er) return cb(er)
addLocalTarball(tgz, cb)
})
})
})
}
function addLocal (p, cb) {
// figure out if this is a folder or file.
fs.stat(p, function (er, s) {
if (er) return log.er(cb, "Doesn't exist: "+p)(er)
if (s.isDirectory()) addLocalDirectory(p, cb)
else addLocalTarball(p, cb)
})
}
function addLocalTarball (p, cb) {
// if it's a tar, and not in place,
// then unzip to .tmp, add the tmp folder, and clean up tmp
var tmp = path.join(npm.tmp, Date.now() + "-" + Math.random())
if (p.indexOf(npm.cache) !== 0) {
return unpackTar(p, tmp, function (er) {
if (er) return log.er(cb, "Failed to unpack "+p)(er)
addLocalDirectory(tmp, function (er, data) {
if (er) cb(er)
rm(tmp, function (er) {
if (er) return log.er(cb, "Could not remove "+tmp)
cb(er, data)
})
})
})
}
if (path.basename(p) !== "package.tgz") return cb(new Error(
"Not a valid cache tarball name: "+p))
addPlacedTarball(p, cb)
}
function addPlacedTarball (p, cb) {
// now we know it's in place already as .cache/name/ver/package.tgz
// unpack to .cache/name/ver/package/, read the package.json,
// and fire cb with the json data.
var target = path.dirname(p)
, folder = path.join(target, "package")
, json = path.join(target, "package.json")
rm(folder, function (e) {
if (e) return log.er(cb, "Could not remove "+folder)(er)
unpackTar(p, folder, function (er) {
if (er) return cb(er)
readJson(path.join(folder, "package.json"), function (er, data) {
if (er) return cb(er)
fs.writeFile(json, JSON.stringify(data), function (er) {
if (er) return log.er(cb, "Could not write to "+json)(er)
cb(null, data)
})
})
})
})
}
function addLocalDirectory (p, cb) {
// if it's a folder, then read the package.json,
// tar it to the proper place, and add the cache tar
if (p.indexOf(npm.cache) === 0) return cb(new Error(
"Adding a cache directory to the cache will make the world implode."))
readJson(path.join(p, "package.json"), function (er, data) {
if (er) return cb(er)
var tgz = path.join(npm.cache, data.name, data.version, "package.tgz")
packTar(tgz, p, function (er) {
if (er) return cb(er)
addLocalTarball(tgz, cb)
})
})
}
function unpack (pkg, ver, unpackTarget, cb) {
read(pkg, ver, function (er, data) {
if (er) return log.er(cb, "Could not read data for "+pkg+"@"+ver)(er)
unpackTar( path.join(npm.cache, pkg, ver, "package.tgz")
, unpackTarget
, cb
)
})
}
function unpackTar (tarball, unpackTarget, cb) {
mkdir(unpackTarget, function (er) {
if (er) return log.er(cb, "Could not create "+unpackTarget)(er)
// cp the gzip of the tarball, pipe the stdout into tar's stdin
// gzip {tarball} --decompress --stdout | tar xf - --strip-components=1 -C {unpackTarget}
pipe( spawn(npm.config.get("gzipbin"), ["--decompress", "--stdout", tarball])
, spawn( npm.config.get("tar")
, ["vxpf", "-", "--strip-components=1", "-C", unpackTarget]
)
, log.er(cb, "Failed unpacking the tarball.\n"
+ "This is very rare. Perhaps the 'gzip' or 'tar' configs\n"
+ "are set improperly?\n")
)
})
}
function packTar (targetTarball, folder, cb) {
log.verbose(folder+" "+targetTarball, "packTar")
if (folder.charAt(0) !== "/") folder = path.join(process.cwd(), folder)
if (folder.slice(-1) === "/") folder = folder.slice(0, -1)
var cwd = process.cwd()
, parent = path.dirname(folder)
, addFolder = path.basename(folder)
, ignore = path.join(folder, ".npmignore")
, defaultIgnore = path.join(__dirname, "utils", "default.npmignore")
, include = path.join(folder, ".npminclude")
cb = log.er(cb, "Failed creating the tarball.\n"
+ "This is very rare. Perhaps the 'gzip' or 'tar' configs\n"
+ "are set improperly?\n")
fs.stat(ignore, function (er) {
if (er) ignore = defaultIgnore
fs.stat(include, function (er) {
if (er) include = false
mkdir(path.dirname(targetTarball), function (er) {
if (er) return log.er(cb, "Could not create "+targetTarball)(er)
process.chdir(parent)
// tar xf - --strip-components=1 -C {unpackTarget} | gzip {tarball} > targetTarball
var target = fs.createWriteStream(targetTarball)
, unPacked = false
, args = [ "cv", "--exclude", ".git", "-X", ignore]
if (include) args.push("-T", include)
args.push(addFolder)
var tar = spawn(npm.config.get("tar"), args)
, gzip = spawn(npm.config.get("gzipbin"), ["--stdout"])
, errState
pipe(tar, gzip, function (er) {
if (errState) return
if (er) return cb(errState = er)
})
sys.pump(gzip.stdout, target, function (er, ok) {
if (errState) return
if (er) return cb(errState = er)
process.chdir(cwd)
cb()
})
})
})
})
}
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