first commit

LICENSE

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+Copyright 2009, 2010 Sami Samhuri. All rights reserved.
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.

Readme.md

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+TODO

lib/index.js

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+//
+// Copyright 2010 Sami Samhuri @_sjs
+// MIT license
+//
+// github.com/samsonjs/edit-repl
+//
+
+// TODO proper error handling
+
+var fs = require('fs')
+  , _repl
+
+exports.startRepl = function() {
+    console.log('Commands: edit(), run(), stash(filename), unstash(filename), setEditor(editor)')
+    // TODO extend the repl context instead, problem is that repl.js:resetContext() isn't exported
+    //      so simple assignments to _repl.context can't survive .clear yet
+    exports.extend(global)
+    _repl = require('repl').start()
+}
+
+exports.extend = function(obj) {
+    var path = require('path')
+      , spawn = require('child_process').spawn
+      , sys = require('sys')
+      , _tmpfile = path.join(process.env['TMPDIR'], 'node-repl-' + process.pid + '.js')
+
+    obj.edit = function(editor) {
+        editor = editor || process.ENV['EDITOR']
+        pausingRepl(function(unpause) {
+            var fds = [process.openStdin(), process.stdout, process.stdout]
+              , args = [_tmpfile]
+            // handle things like 'mate -w' and 'emacsclient --server-file <filename>'
+            if (editor.match(/\s/)) {
+                var words = editor.split(/\s+/)
+                args = words.slice(1).concat(args)
+                editor = words[0]
+            }
+            spawn(editor, args, {customFds: fds}).on('exit', function(code) {
+                // FIXME figure out why obj.run doesn't work properly here (output is skewed)
+                if (code === 0) {
+                    runFile(_tmpfile, function() { unpause() })
+                } else {
+                    unpause()
+                }
+            })
+        })
+    }
+
+    obj.run = function() {
+        pausingRepl(function(unpause) {
+            runFile(_tmpfile, function() { unpause() })
+        })
+    }
+
+    obj.setEditor = function(editor) {
+        process.ENV['EDITOR'] = editor
+    }
+
+    obj.stash = function(dest) {
+        try {
+            fs.statSync(_tmpfile)
+        } catch (e) {
+            console.log('nothing to stash')
+            return
+        }
+        pausingRepl(function(unpause) {
+            var read = fs.createReadStream(_tmpfile)
+            read.on('end', function() {
+                console.log('stashed')
+                unpause()
+            })
+            // TODO confirm before overwriting an existing file
+            sys.pump(read, fs.createWriteStream(dest))
+        })
+    }
+
+    obj.unstash = function(source) {
+        try {
+            fs.statSync(source)
+        } catch (e) {
+            console.log('no stash at ' + source)
+            return
+        }
+        pausingRepl(function(unpause) {
+            var read = fs.createReadStream(source)
+            read.on('end', function() {
+                console.log('unstashed')
+                unpause()
+            })
+            sys.pump(read, fs.createWriteStream(_tmpfile))
+        })
+    }
+}
+
+function pausingRepl(fn) {
+    var origPrompt = _repl.prompt || '> '
+    _repl.stream.pause()
+    _repl.rli.enabled = false
+    _repl.prompt = ''
+    fn(function() {
+        _repl.prompt = origPrompt
+        _repl.rli.enabled = true
+        _repl.stream.resume()
+        _repl.displayPrompt()
+    })
+}
+    
+function runFile(filename, callback) {
+    var Script = process.binding('evals').Script
+      , evalcx = Script.runInContext
+      , read = fs.createReadStream(filename)
+      , s = ''
+    read.on('data', function(d) { s += d })
+    read.on('end', function() {
+        // The catchall for errors
+        try {
+            // Use evalcx to supply the global context
+            var ret = evalcx(s, _repl.context, "repl");
+            if (ret !== undefined) {
+                _repl.context._ = ret;
+                repl.writer(ret) + "\n"
+            }
+        } catch (e) {
+            // On error: Print the error and clear the buffer
+            if (e.stack) {
+                _repl.stream.write(e.stack + "\n");
+            } else {
+                _repl.stream.write(e.toString() + "\n");
+            }
+        }
+        if (callback) callback()
+    })
+}
+
+if (require.main === module) exports.startRepl()

package.json

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+{ "name" : "edit-repl"
+, "description" : "Edit code in the repl using a real text editor"
+, "version" : "0.0.1"
+, "homepage" : "http://samhuri.net/node/edit-repl"
+, "author" : "Sami Samhuri <sami@samhuri.net> (http://blog.izs.me)"
+, "repository" :
+  { "type" : "git"
+  , "url" : "http://github.com/samsonjs/edit-repl.git"
+  }
+, "bugs" :
+  { "mail" : "sami.samhuri+edit-repl@gmail.com"
+  , "web" : "http://github.com/samsonjs/edit-repl/issues"
+  }
+, "directories" : { "lib" : "./lib" }
+, "bin" : { "node-edit-repl" : "./repl.js" }
+, "main" : "./lib/index"
+, "engines" : { "node" : ">=0.2.0" }
+, "licenses" :
+  [ { "type" : "MIT"
+    , "url" : "http://github.com/samsonjs/edit-repl/raw/master/LICENSE"
+    }
+  ]
+}

repl.js

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+#!/usr/bin/env node
+
+require('./lib/index').startRepl()