From d9fba949836ce5a20e4d46475218f3d5ace7411a Mon Sep 17 00:00:00 2001
From: Jeremy Ashkenas <jashkenas@gmail.com>
Date: Fri, 12 Feb 2010 23:09:57 -0500
Subject: [PATCH] added coffee --lint to the self-compiler's resume

---
 lib/coffee_script/command_line.js | 25 ++++++++++++++++++++++++-
 src/command_line.coffee           | 23 ++++++++++++++++++-----
 2 files changed, 42 insertions(+), 6 deletions(-)

diff --git a/lib/coffee_script/command_line.js b/lib/coffee_script/command_line.js
index ab8be60d..b285e2ea 100644
--- a/lib/coffee_script/command_line.js
+++ b/lib/coffee_script/command_line.js
@@ -54,7 +54,13 @@
     }
     opts = this.options;
     return posix.cat(source).addCallback(function(code) {
-      opts.tokens ? puts(coffee.tokenize(code).join(' ')) : opts.tree ? puts(coffee.tree(code).toString()) : opts.run ? eval(coffee.compile(code)) : opts.print ? puts(coffee.compile(code)) : exports.write_js(source, coffee.compile(code));
+      var js;
+      if (opts.tokens) {
+        puts(coffee.tokenize(code).join(' '));
+      } else {
+        opts.tree ? puts(coffee.tree(code).toString()) : (js = coffee.compile(code));
+        opts.run ? eval(js) : opts.print ? puts(js) : opts.lint ? exports.lint(js) : exports.write_js(source, coffee.compile(code));
+      }
       return exports.compile_scripts();
     });
   };
@@ -68,6 +74,23 @@
       return posix.write(fd, js);
     });
   };
+  // Pipe compiled JS through JSLint (requires a working 'jsl' command).
+  exports.lint = function lint(js) {
+    var jsl;
+    jsl = process.createChildProcess('jsl', ['-nologo', '-stdin']);
+    jsl.addListener('output', function(result) {
+      if (result) {
+        return puts(result.replace(/\n/g, ''));
+      }
+    });
+    jsl.addListener('errror', function(result) {
+      if (result) {
+        return puts(result);
+      }
+    });
+    jsl.write(js);
+    return jsl.close();
+  };
   // Use OptionParser for all the options.
   exports.parse_options = function parse_options() {
     var oparser, opts, paths;
diff --git a/src/command_line.coffee b/src/command_line.coffee
index 5ece9f79..2a3c2ea5 100644
--- a/src/command_line.coffee
+++ b/src/command_line.coffee
@@ -63,11 +63,14 @@ exports.compile_scripts: ->
   return unless source: @sources.shift()
   opts: @options
   posix.cat(source).addCallback (code) ->
-    if      opts.tokens then puts coffee.tokenize(code).join(' ')
-    else if opts.tree   then puts coffee.tree(code).toString()
-    else if opts.run    then eval coffee.compile code
-    else if opts.print  then puts coffee.compile code
-    else                     exports.write_js source, coffee.compile code
+    if      opts.tokens   then puts coffee.tokenize(code).join(' ')
+    else if opts.tree     then puts coffee.tree(code).toString()
+    else
+      js: coffee.compile code
+      if      opts.run    then eval js
+      else if opts.print  then puts js
+      else if opts.lint   then exports.lint js
+      else                     exports.write_js source, coffee.compile code
     exports.compile_scripts()
 
 # Write out a JavaScript source file with the compiled code.
@@ -78,6 +81,16 @@ exports.write_js: (source, js) ->
   posix.open(js_path, process.O_CREAT | process.O_WRONLY | process.O_TRUNC, 0755).addCallback (fd) ->
     posix.write(fd, js)
 
+# Pipe compiled JS through JSLint (requires a working 'jsl' command).
+exports.lint: (js) ->
+  jsl: process.createChildProcess('jsl', ['-nologo', '-stdin'])
+  jsl.addListener 'output', (result) ->
+    puts result.replace(/\n/g, '') if result
+  jsl.addListener 'errror', (result) ->
+    puts result if result
+  jsl.write js
+  jsl.close()
+
 # Use OptionParser for all the options.
 exports.parse_options: ->
   opts:         @options: {}