From e54204c472f98bf7447e7696460fc6db00fc6fb2 Mon Sep 17 00:00:00 2001
From: isaacs <i@izs.me>
Date: Sat, 30 Oct 2010 20:30:59 -0700
Subject: npm deprecate function

---
 lib/cache.js     | 16 +++++++++++++++-
 lib/deprecate.js | 33 +++++++++++++++++++++++++++++++++
 npm.js           |  1 +
 3 files changed, 49 insertions(+), 1 deletion(-)
 create mode 100644 lib/deprecate.js

diff --git a/lib/cache.js b/lib/cache.js
index 13e25adb2..008397eea 100644
--- a/lib/cache.js
+++ b/lib/cache.js
@@ -45,6 +45,7 @@ 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
+    deprCheck(data)
     return cb(er, data)
   }
   if (name+"@"+ver in cacheSeen) {
@@ -52,6 +53,7 @@ function read (name, ver, cb) {
   }
   readJson(jsonFile, function (er, data) {
     if (er) return addNameVersion(name, ver, c)
+    deprCheck(data)
     c(er, data)
   })
 }
@@ -100,7 +102,6 @@ function clean (args, cb) {
   rm(clean, cb)
 }
 
-
 // npm cache add <tarball-url>
 // npm cache add <pkg> <ver>
 // npm cache add <tarball>
@@ -137,6 +138,7 @@ function addRemoteTarball (url, cb) {
 function addNameVersion (name, ver, cb) {
   registry.get(name, ver, function (er, data, json) {
     if (er) return cb(er)
+    deprCheck(data)
     var folder = path.join(npm.cache, data.name, data.version)
       , tgz = path.join(folder, "package.tgz")
     mkdir(folder, function (er) {
@@ -192,6 +194,7 @@ function addPlacedTarball (p, cb) {
       if (er) return cb(er)
       readJson(path.join(folder, "package.json"), function (er, data) {
         if (er) return cb(er)
+        deprCheck(data)
         fs.writeFile(json, JSON.stringify(data), function (er) {
           if (er) return log.er(cb, "Could not write to "+json)(er)
           cb(null, data)
@@ -207,6 +210,7 @@ function addLocalDirectory (p, cb) {
     "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)
+    deprCheck(data)
     var tgz = path.join(npm.cache, data.name, data.version, "package.tgz")
     packTar(tgz, p, function (er) {
       if (er) return cb(er)
@@ -284,3 +288,13 @@ function packTar (targetTarball, folder, cb) {
     })
   })
 }
+var deprecated = {}
+  , deprWarned = {}
+function deprCheck (data) {
+  if (deprecated[data._id]) data.deprecated = deprecated[data._id]
+  if (data.deprecated) deprecated[data._id] = data.deprecated
+  if (!deprWarned[data._id]) {
+    deprWarned[data._id] = true
+    log.warn(data._id+": "+data.deprecated, "deprecated")
+  }
+}
diff --git a/lib/deprecate.js b/lib/deprecate.js
new file mode 100644
index 000000000..b42d2c012
--- /dev/null
+++ b/lib/deprecate.js
@@ -0,0 +1,33 @@
+
+module.exports = deprecate
+
+deprecate.usage = "npm deprecate <pkg>[@<version>] <message>"
+
+var registry = require("./utils/registry")
+  , semver = require("./utils/semver")
+  , log = require("./utils/log")
+  , asyncMap = require("./utils/async-map")
+
+function deprecate (args, cb) {
+  var pkg = args[0]
+    , msg = args[1]
+  if (msg === undefined) return cb(new Error(deprecate.usage))
+  // fetch the data and make sure it exists.
+  pkg = pkg.split(/@/)
+  var name = pkg.shift()
+    , ver = pkg.join("@")
+  if (semver.validRange(ver) === null) {
+    return cb(new Error("invalid version range: "+ver))
+  }
+  registry.get(name, function (er, data) {
+    if (er) return cb(er)
+    // filter all the versions that match
+    Object.keys(data.versions).filter(function (v) {
+      return semver.satisfies(v, ver)
+    }).forEach(function (v) {
+      data.versions[v].deprecated = msg
+    })
+    // now update the doc on the registry
+    registry.request.PUT(data._id, data, cb)
+  })
+}
diff --git a/npm.js b/npm.js
index d1353f95e..9392ee504 100644
--- a/npm.js
+++ b/npm.js
@@ -78,6 +78,7 @@ var commandCache = {}
               , "outdated"
               , "init"
               , "completion"
+              , "deprecate"
               ]
   , fullList = npm.fullList = cmdList.concat(aliasNames)
   , abbrevs = abbrev(fullList)
-- 
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