add npm-install-checks@1.0.0

7 files changed, 558 insertions, 0 deletions

diff --git a/node_modules/npm-install-checks/LICENSE b/node_modules/npm-install-checks/LICENSE
new file mode 100644
index 000000000..1a8fdb735
--- /dev/null
+++ b/node_modules/npm-install-checks/LICENSE
@@ -0,0 +1,234 @@
+Copyright (c) Robert Kowalski ("Author")
+All rights reserved.
+
+
+The BSD License
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
+BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+This uses parts of npm, (c) Isaac Z. Schlueter, under the following license:
+
+
+The Artistic License 2.0
+
+Copyright (c) 2000-2006, The Perl Foundation.
+
+Everyone is permitted to copy and distribute verbatim copies
+of this license document, but changing it is not allowed.
+
+Preamble
+
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+You are always permitted to make arrangements wholly outside of this
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+Definitions
+
+    "Copyright Holder" means the individual(s) or organization(s)
+    named in the copyright notice for the entire Package.
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+    "Contributor" means any party that has contributed code or other
+    material to the Package, in accordance with the Copyright Holder's
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+    "You" and "your" means any person who would like to copy,
+    distribute, or modify the Package.
+
+    "Package" means the collection of files distributed by the
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+    "Distribute" means providing a copy of the Package or making it
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+    "Distributor Fee" means any fee that you charge for Distributing
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+    "Standard Version" refers to the Package if it has not been
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+    "Modified Version" means the Package, if it has been changed, and
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+(3)  You may apply any bug fixes, portability changes, and other
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+Distribution of Modified Versions of the Package as Source
+
+(4)  You may Distribute your Modified Version as Source (either gratis
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+    (c)  allow anyone who receives a copy of the Modified Version to
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+Distribution of Compiled Forms of the Standard Version
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+Items That are Not Considered Part of a Modified Version
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+merely extend or make use of the Package, do not, by themselves, cause
+the Package to be a Modified Version.  In addition, such works are not
+considered parts of the Package itself, and are not subject to the
+terms of this license.
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+General Provisions
+
+(10)  Any use, modification, and distribution of the Standard or
+Modified Versions is governed by this Artistic License. By using,
+modifying or distributing the Package, you accept this license. Do not
+use, modify, or distribute the Package, if you do not accept this
+license.
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+(11)  If your Modified Version has been derived from a Modified
+Version made by someone other than you, you are nevertheless required
+to ensure that your Modified Version complies with the requirements of
+this license.
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+(12)  This license does not grant you the right to use any trademark,
+service mark, tradename, or logo of the Copyright Holder.
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+(13)  This license includes the non-exclusive, worldwide,
+free-of-charge patent license to make, have made, use, offer to sell,
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+(including a cross-claim or counterclaim) against any party alleging
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+date that such litigation is filed.
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+(14)  Disclaimer of Warranty:
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+IS' AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES. THE IMPLIED
+WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
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+ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/node_modules/npm-install-checks/README.md b/node_modules/npm-install-checks/README.md
new file mode 100644
index 000000000..7da4af148
--- /dev/null
+++ b/node_modules/npm-install-checks/README.md
@@ -0,0 +1,25 @@
+# npm-install-checks
+
+A package that contains checks that npm runs during the installation.
+
+## API
+
+### .checkEngine(target, npmVer, nodeVer, force, strict, cb)
+Check if node/npm version is supported by the package.
+
+Error type: `ENOTSUP`
+
+### .checkPlatform(target, force, cb)
+Check if OS/Arch is supported by the package.
+
+Error type: `EBADPLATFORM`
+
+### .checkCycle(target, ancestors, cb)
+Check for cyclic dependencies.
+
+Error type: `ECYCLE`
+
+### .checkGit(folder, cb)
+Check if a folder is a .git folder.
+
+Error type: `EISGIT`
diff --git a/node_modules/npm-install-checks/index.js b/node_modules/npm-install-checks/index.js
new file mode 100644
index 000000000..10f214fa9
--- /dev/null
+++ b/node_modules/npm-install-checks/index.js
@@ -0,0 +1,146 @@
+var fs = require("fs")
+var path = require("path")
+var log = require("npmlog")
+var semver = require("semver")
+
+exports.checkEngine = checkEngine
+function checkEngine (target, npmVer, nodeVer, force, strict, cb) {
+  var nodev = force ? null : nodeVer
+    , strict = strict || target.engineStrict
+    , eng = target.engines
+  if (!eng) return cb()
+  if (nodev && eng.node && !semver.satisfies(nodev, eng.node)
+      || eng.npm && !semver.satisfies(npmVer, eng.npm)) {
+
+    if (strict) {
+      var er = new Error("Unsupported")
+      er.code = "ENOTSUP"
+      er.required = eng
+      er.pkgid = target._id
+      return cb(er)
+    } else {
+      log.warn( "engine", "%s: wanted: %j (current: %j)"
+              , target._id, eng, {node: nodev, npm: npmVer} )
+    }
+  }
+  return cb()
+}
+
+exports.checkPlatform = checkPlatform
+function checkPlatform (target, force, cb) {
+  var platform = process.platform
+    , arch = process.arch
+    , osOk = true
+    , cpuOk = true
+
+  if (force) {
+    return cb()
+  }
+
+  if (target.os) {
+    osOk = checkList(platform, target.os)
+  }
+  if (target.cpu) {
+    cpuOk = checkList(arch, target.cpu)
+  }
+  if (!osOk || !cpuOk) {
+    var er = new Error("Unsupported")
+    er.code = "EBADPLATFORM"
+    er.os = target.os || ['any']
+    er.cpu = target.cpu || ['any']
+    er.pkgid = target._id
+    return cb(er)
+  }
+  return cb()
+}
+
+function checkList (value, list) {
+  var tmp
+    , match = false
+    , blc = 0
+  if (typeof list === "string") {
+    list = [list]
+  }
+  if (list.length === 1 && list[0] === "any") {
+    return true
+  }
+  for (var i = 0; i < list.length; ++i) {
+    tmp = list[i]
+    if (tmp[0] === '!') {
+      tmp = tmp.slice(1)
+      if (tmp === value) {
+        return false
+      }
+      ++blc
+    } else {
+      match = match || tmp === value
+    }
+  }
+  return match || blc === list.length
+}
+
+exports.checkCycle = checkCycle
+function checkCycle (target, ancestors, cb) {
+  // there are some very rare and pathological edge-cases where
+  // a cycle can cause npm to try to install a never-ending tree
+  // of stuff.
+  // Simplest:
+  //
+  // A -> B -> A' -> B' -> A -> B -> A' -> B' -> A -> ...
+  //
+  // Solution: Simply flat-out refuse to install any name@version
+  // that is already in the prototype tree of the ancestors object.
+  // A more correct, but more complex, solution would be to symlink
+  // the deeper thing into the new location.
+  // Will do that if anyone whines about this irl.
+  //
+  // Note: `npm install foo` inside of the `foo` package will abort
+  // earlier if `--force` is not set.  However, if it IS set, then
+  // we need to still fail here, but just skip the first level. Of
+  // course, it'll still fail eventually if it's a true cycle, and
+  // leave things in an undefined state, but that's what is to be
+  // expected when `--force` is used.  That is why getPrototypeOf
+  // is used *twice* here: to skip the first level of repetition.
+
+  var p = Object.getPrototypeOf(Object.getPrototypeOf(ancestors))
+    , name = target.name
+    , version = target.version
+  while (p && p !== Object.prototype && p[name] !== version) {
+    p = Object.getPrototypeOf(p)
+  }
+  if (p[name] !== version) return cb()
+
+  var er = new Error("Unresolvable cycle detected")
+  var tree = [target._id, JSON.parse(JSON.stringify(ancestors))]
+    , t = Object.getPrototypeOf(ancestors)
+  while (t && t !== Object.prototype) {
+    if (t === p) t.THIS_IS_P = true
+    tree.push(JSON.parse(JSON.stringify(t)))
+    t = Object.getPrototypeOf(t)
+  }
+  log.verbose("unresolvable dependency tree", tree)
+  er.pkgid = target._id
+  er.code = "ECYCLE"
+  return cb(er)
+}
+
+exports.checkGit = checkGit
+function checkGit (folder, cb) {
+  // if it's a git repo then don't touch it!
+  fs.lstat(folder, function (er, s) {
+    if (er || !s.isDirectory()) return cb()
+    else checkGit_(folder, cb)
+  })
+}
+
+function checkGit_ (folder, cb) {
+  fs.stat(path.resolve(folder, ".git"), function (er, s) {
+    if (!er && s.isDirectory()) {
+      var e = new Error("Appears to be a git repo or submodule.")
+      e.path = folder
+      e.code = "EISGIT"
+      return cb(e)
+    }
+    cb()
+  })
+}
diff --git a/node_modules/npm-install-checks/package.json b/node_modules/npm-install-checks/package.json
new file mode 100644
index 000000000..39b7adf99
--- /dev/null
+++ b/node_modules/npm-install-checks/package.json
@@ -0,0 +1,43 @@
+{
+  "name": "npm-install-checks",
+  "version": "1.0.0",
+  "description": "checks that npm runs during the installation of a module",
+  "main": "index.js",
+  "dependencies": {
+    "npmlog": "0.0.6",
+    "semver": "~2.2.1"
+  },
+  "devDependencies": {
+    "tap": "~0.4.8",
+    "rimraf": "~2.2.5",
+    "mkdirp": "~0.3.5"
+  },
+  "scripts": {
+    "test": "tap test/*.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/robertkowalski/npm-install-checks.git"
+  },
+  "homepage": "https://github.com/robertkowalski/npm-install-checks",
+  "keywords": [
+    "npm,",
+    "install"
+  ],
+  "author": {
+    "name": "Robert Kowalski",
+    "email": "rok@kowalski.gd"
+  },
+  "license": "BSD-2-Clause",
+  "bugs": {
+    "url": "https://github.com/robertkowalski/npm-install-checks/issues"
+  },
+  "readme": "# npm-install-checks\n\nA package that contains checks that npm runs during the installation.\n\n## API\n\n### .checkEngine(target, npmVer, nodeVer, force, strict, cb)\nCheck if node/npm version is supported by the package.\n\nError type: `ENOTSUP`\n\n### .checkPlatform(target, force, cb)\nCheck if OS/Arch is supported by the package.\n\nError type: `EBADPLATFORM`\n\n### .checkCycle(target, ancestors, cb)\nCheck for cyclic dependencies.\n\nError type: `ECYCLE`\n\n### .checkGit(folder, cb)\nCheck if a folder is a .git folder.\n\nError type: `EISGIT`\n",
+  "readmeFilename": "README.md",
+  "_id": "npm-install-checks@1.0.0",
+  "dist": {
+    "shasum": "7e1469b5e0c693b2ae2a8830b5fc4e7bf76c88fd"
+  },
+  "_from": "npm-install-checks@1.0.0",
+  "_resolved": "https://registry.npmjs.org/npm-install-checks/-/npm-install-checks-1.0.0.tgz"
+}
diff --git a/node_modules/npm-install-checks/test/check-engine.js b/node_modules/npm-install-checks/test/check-engine.js
new file mode 100644
index 000000000..a16b13d7d
--- /dev/null
+++ b/node_modules/npm-install-checks/test/check-engine.js
@@ -0,0 +1,35 @@
+var test = require("tap").test
+var c = require("../index.js").checkEngine
+
+test("no engine defined", function (t) {
+  c({ engines: {}}, "1.1.2", "0.2.1", false, true, function (err) {
+    t.notOk(err, "no error present")
+    t.end()
+  })
+})
+
+test("node version too old", function (t) {
+  var target = { engines: { node: "0.10.24" }}
+  c(target, "1.1.2", "0.10.18", false, true, function (err) {
+    t.ok(err, "returns an error")
+    t.equals(err.required.node, "0.10.24")
+    t.end()
+  })
+})
+
+test("npm version too old", function (t) {
+  var target = { engines: { npm: "1.3.6" }}
+    c(target, "1.4.2", "0.2.1", false, true, function (err) {
+      t.ok(err, "returns an error")
+      t.equals(err.required.npm, "1.3.6")
+      t.end()
+    })
+})
+
+test("strict=false does not return an error", function (t) {
+  var target = { engines: { npm: "1.3.6" }}
+  c(target, "1.4.2", "0.2.1", false, false, function (err) {
+    t.notOk(err, "returns no error")
+    t.end()
+  })
+})
diff --git a/node_modules/npm-install-checks/test/check-git.js b/node_modules/npm-install-checks/test/check-git.js
new file mode 100644
index 000000000..d09d0b518
--- /dev/null
+++ b/node_modules/npm-install-checks/test/check-git.js
@@ -0,0 +1,31 @@
+var test = require("tap").test
+var c = require("../index.js").checkGit
+var fs = require("fs")
+var rimraf = require("rimraf")
+var mkdirp = require("mkdirp")
+var path = require("path")
+var gitFixturePath = path.resolve(__dirname, "out")
+
+test("is .git repo", function (t) {
+  mkdirp(gitFixturePath + "/.git", function () {
+    c(gitFixturePath, function (err) {
+      t.ok(err, "error present")
+      t.equal(err.code, "EISGIT")
+      t.end()
+    })
+  })
+})
+
+test("is not a .git repo", function (t) {
+  c(__dirname, function (err) {
+    t.notOk(err, "error not present")
+    t.end()
+  })
+})
+
+test("cleanup", function (t) {
+  rimraf(gitFixturePath, function () {
+    t.pass("cleanup")
+    t.end()
+  })
+})
diff --git a/node_modules/npm-install-checks/test/check-platform.js b/node_modules/npm-install-checks/test/check-platform.js
new file mode 100644
index 000000000..eeeb1bcef
--- /dev/null
+++ b/node_modules/npm-install-checks/test/check-platform.js
@@ -0,0 +1,44 @@
+var test = require("tap").test
+var c = require("../index.js").checkPlatform
+
+test("target cpu wrong", function (t) {
+  var target = {}
+  target.cpu = "enten-cpu"
+  target.os = "any"
+  c(target, false, function (err) {
+    t.ok(err, "error present")
+    t.equal(err.code, "EBADPLATFORM")
+    t.end()
+  })
+})
+
+test("os wrong", function (t) {
+  var target = {}
+  target.cpu = "any"
+  target.os = "enten-os"
+  c(target, false, function (err) {
+    t.ok(err, "error present")
+    t.equal(err.code, "EBADPLATFORM")
+    t.end()
+  })
+})
+
+test("nothing wrong", function (t) {
+  var target = {}
+  target.cpu = "any"
+  target.os = "any"
+  c(target, false, function (err) {
+    t.notOk(err, "no error present")
+    t.end()
+  })
+})
+
+test("force", function (t) {
+  var target = {}
+  target.cpu = "enten-cpu"
+  target.os = "any"
+  c(target, true, function (err) {
+    t.notOk(err, "no error present")
+    t.end()
+  })
+})