Send remaining stdout/stderr output to callbacks

Previously this data was only sent to the done
handlers and so commands such as SelectAllMatchesInProject
were not displaying all the results when the result size
was large.

spec/stdlib/child-process-spec.coffee

@@ -11,9 +11,17 @@ describe 'Child Processes', ->
     it "returns a promise that resolves to stdout and stderr", ->
       waitsForPromise ->
         cmd = "echo 'good' && echo 'bad' >&2"
-        ChildProcess.exec(cmd).done (stdout, stderr) ->
-          expect(stdout).toBe 'good\n'
-          expect(stderr).toBe 'bad\n'
+        standardOutput = ''
+        errorOutput = ''
+        options =
+          stdout: (data) ->
+            standardOutput += data
+          stderr: (data) ->
+            errorOutput += data
+
+        ChildProcess.exec(cmd, options).done ->
+          expect(standardOutput).toBe 'good\n'
+          expect(errorOutput).toBe 'bad\n'
 
     describe "when options are given", ->
       it "calls the options.stdout callback when new data is received on stdout", ->
@@ -89,6 +97,10 @@ describe 'Child Processes', ->
       it "executes the callback with error set to the exit status", ->
         waitsForPromise shouldReject: true, ->
           cmd = "echo 'bad' >&2 && exit 2"
-          ChildProcess.exec(cmd).fail (error) ->
+          errorOutput = ''
+          options =
+            stderr: (data) ->
+              errorOutput += data
+          ChildProcess.exec(cmd, options).fail (error) ->
             expect(error.exitStatus).toBe 2
-            expect(error.stderr).toBe "bad\n"
+            expect(errorOutput).toBe "bad\n"

src/stdlib/child-process.coffee

@@ -14,11 +14,13 @@ class ChildProccess
       options.stderr = @bufferLines(options.stderr) if options.stderr
 
     $native.exec command, options, (exitStatus, stdout, stderr) ->
+      options.stdout(stdout) if options.stdout
+      options.stderr(stderr) if options.stderr
       try
         if exitStatus != 0
-          deferred.reject({command, exitStatus, stderr})
+          deferred.reject({command, exitStatus})
         else
-          deferred.resolve(stdout, stderr)
+          deferred.resolve()
       catch e
         console.error "In ChildProccess termination callback: ", e.message
         console.error e.stack