Merge pull request #33 from sharelatex/pr/28

wordcount

app/coffee/CompileController.coffee

@@ -66,3 +66,13 @@ module.exports = CompileController =
 			res.send JSON.stringify {
 				code: codePositions
 			}
+
+	wordcount: (req, res, next = (error) ->) ->
+		file   = req.query.file || "main.tex"
+		project_id = req.params.project_id
+
+		CompileManager.wordcount project_id, file, (error, result) ->
+			return next(error) if error?
+			res.send JSON.stringify {
+				texcount: result
+			}

app/coffee/CompileManager.coffee

@@ -7,6 +7,8 @@ Path = require "path"
 logger = require "logger-sharelatex"
 Metrics = require "./Metrics"
 child_process = require "child_process"
+CommandRunner = require(Settings.clsi?.commandRunner or "./CommandRunner")
+fs = require("fs")
 
 module.exports = CompileManager =
 	doCompile: (request, callback = (error, outputFiles) ->) ->
@@ -107,4 +109,47 @@ module.exports = CompileManager =
 					line: parseInt(line, 10)
 					column: parseInt(column, 10)
 				}
-		return results
+		return results
+
+	wordcount: (project_id, file_name, callback = (error, pdfPositions) ->) ->
+		logger.log project_id:project_id, file_name:file_name, "running wordcount"
+		file_path = "$COMPILE_DIR/" + file_name
+		command = [ "texcount", '-inc', file_path, "-out=" + file_path + ".wc"]
+		directory = Path.join(Settings.path.compilesDir, project_id)
+		timeout = 10 * 1000
+
+		CommandRunner.run project_id, command, directory, timeout, (error) ->
+			return callback(error) if error?
+			stdout = fs.readFileSync(directory + "/" + file_name + ".wc", "utf-8")
+			callback null, CompileManager._parseWordcountFromOutput(stdout)
+
+	_parseWordcountFromOutput: (output) ->
+		results = {
+			encode: ""
+			textWords: 0
+			headWords: 0
+			outside: 0
+			headers: 0
+			elements: 0
+			mathInline: 0
+			mathDisplay: 0
+		}
+		for line in output.split("\n")
+			[data, info] = line.split(":")
+			if data.indexOf("Encoding") > -1
+				results['encode'] = info.trim()
+			if data.indexOf("in text") > -1
+				results['textWords'] = parseInt(info, 10)
+			if data.indexOf("in head") > -1
+				results['headWords'] = parseInt(info, 10)
+			if data.indexOf("outside") > -1
+				results['outside'] = parseInt(info, 10)
+			if data.indexOf("of head") > -1
+				results['headers'] = parseInt(info, 10)
+			if data.indexOf("Number of floats/tables/figures") > -1
+				results['elements'] = parseInt(info, 10)
+			if data.indexOf("Number of math inlines") > -1
+				results['mathInline'] = parseInt(info, 10)
+			if data.indexOf("Number of math displayed") > -1
+				results['mathDisplay'] = parseInt(info, 10)
+		return results