ResourceWriter = require "./ResourceWriter" LatexRunner = require "./LatexRunner" OutputFileFinder = require "./OutputFileFinder" OutputCacheManager = require "./OutputCacheManager" Settings = require("settings-sharelatex") Path = require "path" logger = require "logger-sharelatex" Metrics = require "./Metrics" child_process = require "child_process" DraftModeManager = require "./DraftModeManager" TikzManager = require "./TikzManager" fs = require("fs") fse = require "fs-extra" os = require("os") async = require "async" commandRunner = Settings.clsi?.commandRunner or "./CommandRunner" logger.info commandRunner:commandRunner, "selecting command runner for clsi" CommandRunner = require(commandRunner) getCompileName = (project_id, user_id) -> if user_id? then "#{project_id}-#{user_id}" else project_id getCompileDir = (project_id, user_id) -> Path.join(Settings.path.compilesDir, getCompileName(project_id, user_id)) module.exports = CompileManager = doCompile: (request, callback = (error, outputFiles) ->) -> compileDir = getCompileDir(request.project_id, request.user_id) timer = new Metrics.Timer("write-to-disk") logger.log project_id: request.project_id, user_id: request.user_id, "syncing resources to disk" ResourceWriter.syncResourcesToDisk request.project_id, request.resources, compileDir, (error) -> if error? logger.err err:error, project_id: request.project_id, user_id: request.user_id, "error writing resources to disk" return callback(error) logger.log project_id: request.project_id, user_id: request.user_id, time_taken: Date.now() - timer.start, "written files to disk" timer.done() injectDraftModeIfRequired = (callback) -> if request.draft DraftModeManager.injectDraftMode Path.join(compileDir, request.rootResourcePath), callback else callback() createTikzFileIfRequired = (callback) -> if TikzManager.needsOutputFile(request.rootResourcePath, request.resources) TikzManager.injectOutputFile compileDir, request.rootResourcePath, callback else callback() # set up environment variables for chktex env = {} # only run chktex on LaTeX files (not knitr .Rtex files or any others) isLaTeXFile = request.rootResourcePath?.match(/\.tex$/i) if request.check? and isLaTeXFile env['CHKTEX_OPTIONS'] = '-nall -e9 -e10 -w15 -w16' env['CHKTEX_ULIMIT_OPTIONS'] = '-t 5 -v 64000' if request.check is 'error' env['CHKTEX_EXIT_ON_ERROR'] = 1 if request.check is 'validate' env['CHKTEX_VALIDATE'] = 1 # apply a series of file modifications/creations for draft mode and tikz async.series [injectDraftModeIfRequired, createTikzFileIfRequired], (error) -> return callback(error) if error? timer = new Metrics.Timer("run-compile") # find the image tag to log it as a metric, e.g. 2015.1 (convert . to - for graphite) tag = request.imageName?.match(/:(.*)/)?[1]?.replace(/\./g,'-') or "default" tag = "other" if not request.project_id.match(/^[0-9a-f]{24}$/) # exclude smoke test Metrics.inc("compiles") Metrics.inc("compiles-with-image.#{tag}") compileName = getCompileName(request.project_id, request.user_id) LatexRunner.runLatex compileName, { directory: compileDir mainFile: request.rootResourcePath compiler: request.compiler timeout: request.timeout image: request.imageName environment: env }, (error, output, stats, timings) -> # request was for validation only if request.check is "validate" result = if error?.code then "fail" else "pass" error = new Error("validation") error.validate = result # request was for compile, and failed on validation if request.check is "error" and error?.message is 'exited' error = new Error("compilation") error.validate = "fail" # compile was killed by user, was a validation, or a compile which failed validation if error?.terminated or error?.validate OutputFileFinder.findOutputFiles request.resources, compileDir, (err, outputFiles) -> return callback(err) if err? callback(error, outputFiles) # return output files so user can check logs return # compile completed normally return callback(error) if error? Metrics.inc("compiles-succeeded") for metric_key, metric_value of stats or {} Metrics.count(metric_key, metric_value) for metric_key, metric_value of timings or {} Metrics.timing(metric_key, metric_value) loadavg = os.loadavg?() Metrics.gauge("load-avg", loadavg[0]) if loadavg? ts = timer.done() logger.log {project_id: request.project_id, user_id: request.user_id, time_taken: ts, stats:stats, timings:timings, loadavg:loadavg}, "done compile" if stats?["latex-runs"] > 0 Metrics.timing("run-compile-per-pass", ts / stats["latex-runs"]) if stats?["latex-runs"] > 0 and timings?["cpu-time"] > 0 Metrics.timing("run-compile-cpu-time-per-pass", timings["cpu-time"] / stats["latex-runs"]) OutputFileFinder.findOutputFiles request.resources, compileDir, (error, outputFiles) -> return callback(error) if error? OutputCacheManager.saveOutputFiles outputFiles, compileDir, (error, newOutputFiles) -> callback null, newOutputFiles stopCompile: (project_id, user_id, callback = (error) ->) -> compileName = getCompileName(project_id, user_id) LatexRunner.killLatex compileName, callback clearProject: (project_id, user_id, _callback = (error) ->) -> callback = (error) -> _callback(error) _callback = () -> compileDir = getCompileDir(project_id, user_id) CompileManager._checkDirectory compileDir, (err, exists) -> return callback(err) if err? return callback() if not exists # skip removal if no directory present proc = child_process.spawn "rm", ["-r", compileDir] proc.on "error", callback stderr = "" proc.stderr.on "data", (chunk) -> stderr += chunk.toString() proc.on "close", (code) -> if code == 0 return callback(null) else return callback(new Error("rm -r #{compileDir} failed: #{stderr}")) _findAllDirs: (callback = (error, allDirs) ->) -> root = Settings.path.compilesDir fs.readdir root, (err, files) -> return callback(err) if err? allDirs = (Path.join(root, file) for file in files) callback(null, allDirs) clearExpiredProjects: (max_cache_age_ms, callback = (error) ->) -> now = Date.now() # action for each directory expireIfNeeded = (checkDir, cb) -> fs.stat checkDir, (err, stats) -> return cb() if err? # ignore errors checking directory age = now - stats.mtime hasExpired = (age > max_cache_age_ms) if hasExpired then fse.remove(checkDir, cb) else cb() # iterate over all project directories CompileManager._findAllDirs (error, allDirs) -> return callback() if error? async.eachSeries allDirs, expireIfNeeded, callback _checkDirectory: (compileDir, callback = (error, exists) ->) -> fs.lstat compileDir, (err, stats) -> if err?.code is 'ENOENT' return callback(null, false) # directory does not exist else if err? logger.err {dir: compileDir, err:err}, "error on stat of project directory for removal" return callback(err) else if not stats?.isDirectory() logger.err {dir: compileDir, stats:stats}, "bad project directory for removal" return callback new Error("project directory is not directory") else callback(null, true) # directory exists syncFromCode: (project_id, user_id, file_name, line, column, callback = (error, pdfPositions) ->) -> # If LaTeX was run in a virtual environment, the file path that synctex expects # might not match the file path on the host. The .synctex.gz file however, will be accessed # wherever it is on the host. compileName = getCompileName(project_id, user_id) base_dir = Settings.path.synctexBaseDir(compileName) file_path = base_dir + "/" + file_name compileDir = getCompileDir(project_id, user_id) synctex_path = Path.join(compileDir, "output.pdf") CompileManager._runSynctex ["code", synctex_path, file_path, line, column], (error, stdout) -> return callback(error) if error? logger.log project_id: project_id, user_id:user_id, file_name: file_name, line: line, column: column, stdout: stdout, "synctex code output" callback null, CompileManager._parseSynctexFromCodeOutput(stdout) syncFromPdf: (project_id, user_id, page, h, v, callback = (error, filePositions) ->) -> compileName = getCompileName(project_id, user_id) base_dir = Settings.path.synctexBaseDir(compileName) compileDir = getCompileDir(project_id, user_id) synctex_path = Path.join(compileDir, "output.pdf") CompileManager._runSynctex ["pdf", synctex_path, page, h, v], (error, stdout) -> return callback(error) if error? logger.log project_id: project_id, user_id:user_id, page: page, h: h, v:v, stdout: stdout, "synctex pdf output" callback null, CompileManager._parseSynctexFromPdfOutput(stdout, base_dir) _checkFileExists: (path, callback = (error) ->) -> synctexDir = Path.dirname(path) synctexFile = Path.join(synctexDir, "output.synctex.gz") fs.stat synctexDir, (error, stats) -> if error?.code is 'ENOENT' return callback(new Error("called synctex with no output directory")) return callback(error) if error? fs.stat synctexFile, (error, stats) -> if error?.code is 'ENOENT' return callback(new Error("called synctex with no output file")) return callback(error) if error? return callback(new Error("not a file")) if not stats?.isFile() callback() _runSynctex: (args, callback = (error, stdout) ->) -> bin_path = Path.resolve(__dirname + "/../../bin/synctex") seconds = 1000 outputFilePath = args[1] CompileManager._checkFileExists outputFilePath, (error) -> return callback(error) if error? if Settings.clsi?.synctexCommandWrapper? [bin_path, args] = Settings.clsi?.synctexCommandWrapper bin_path, args child_process.execFile bin_path, args, timeout: 10 * seconds, (error, stdout, stderr) -> if error? logger.err err:error, args:args, "error running synctex" return callback(error) callback(null, stdout) _parseSynctexFromCodeOutput: (output) -> results = [] for line in output.split("\n") [node, page, h, v, width, height] = line.split("\t") if node == "NODE" results.push { page: parseInt(page, 10) h: parseFloat(h) v: parseFloat(v) height: parseFloat(height) width: parseFloat(width) } return results _parseSynctexFromPdfOutput: (output, base_dir) -> results = [] for line in output.split("\n") [node, file_path, line, column] = line.split("\t") if node == "NODE" file = file_path.slice(base_dir.length + 1) results.push { file: file line: parseInt(line, 10) column: parseInt(column, 10) } return results wordcount: (project_id, user_id, file_name, image, callback = (error, pdfPositions) ->) -> logger.log project_id:project_id, user_id:user_id, file_name:file_name, image:image, "running wordcount" file_path = "$COMPILE_DIR/" + file_name command = [ "texcount", '-nocol', '-inc', file_path, "-out=" + file_path + ".wc"] directory = getCompileDir(project_id, user_id) timeout = 10 * 1000 compileName = getCompileName(project_id, user_id) CommandRunner.run compileName, command, directory, image, timeout, {}, (error) -> return callback(error) if error? fs.readFile directory + "/" + file_name + ".wc", "utf-8", (err, stdout) -> if err? logger.err err:err, command:command, directory:directory, project_id:project_id, user_id:user_id, "error reading word count output" return callback(err) results = CompileManager._parseWordcountFromOutput(stdout) logger.log project_id:project_id, user_id:user_id, wordcount: results, "word count results" callback null, results _parseWordcountFromOutput: (output) -> results = { encode: "" textWords: 0 headWords: 0 outside: 0 headers: 0 elements: 0 mathInline: 0 mathDisplay: 0 errors: 0 messages: "" } 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) if data is "(errors" # errors reported as (errors:123) results['errors'] = parseInt(info, 10) if line.indexOf("!!! ") > -1 # errors logged as !!! message !!! results['messages'] += line + "\n" return results