decaffeinate: rename app/coffee dir to app/js
This commit is contained in:
mserranom
275
app/js/OutputCacheManager.js
Normal file
275
app/js/OutputCacheManager.js
Normal file
@@ -0,0 +1,275 @@
|
||||
/* eslint-disable
|
||||
handle-callback-err,
|
||||
*/
|
||||
// TODO: This file was created by bulk-decaffeinate.
|
||||
// Fix any style issues and re-enable lint.
|
||||
/*
|
||||
* decaffeinate suggestions:
|
||||
* DS101: Remove unnecessary use of Array.from
|
||||
* DS102: Remove unnecessary code created because of implicit returns
|
||||
* DS103: Rewrite code to no longer use __guard__
|
||||
* DS104: Avoid inline assignments
|
||||
* DS204: Change includes calls to have a more natural evaluation order
|
||||
* DS207: Consider shorter variations of null checks
|
||||
* Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
|
||||
*/
|
||||
let OutputCacheManager;
|
||||
const async = require("async");
|
||||
const fs = require("fs");
|
||||
const fse = require("fs-extra");
|
||||
const Path = require("path");
|
||||
const logger = require("logger-sharelatex");
|
||||
const _ = require("underscore");
|
||||
const Settings = require("settings-sharelatex");
|
||||
const crypto = require("crypto");
|
||||
|
||||
const OutputFileOptimiser = require("./OutputFileOptimiser");
|
||||
|
||||
module.exports = (OutputCacheManager = {
|
||||
CACHE_SUBDIR: '.cache/clsi',
|
||||
ARCHIVE_SUBDIR: '.archive/clsi',
|
||||
// build id is HEXDATE-HEXRANDOM from Date.now()and RandomBytes
|
||||
// for backwards compatibility, make the randombytes part optional
|
||||
BUILD_REGEX: /^[0-9a-f]+(-[0-9a-f]+)?$/,
|
||||
CACHE_LIMIT: 2, // maximum number of cache directories
|
||||
CACHE_AGE: 60*60*1000, // up to one hour old
|
||||
|
||||
path(buildId, file) {
|
||||
// used by static server, given build id return '.cache/clsi/buildId'
|
||||
if (buildId.match(OutputCacheManager.BUILD_REGEX)) {
|
||||
return Path.join(OutputCacheManager.CACHE_SUBDIR, buildId, file);
|
||||
} else {
|
||||
// for invalid build id, return top level
|
||||
return file;
|
||||
}
|
||||
},
|
||||
|
||||
generateBuildId(callback) {
|
||||
// generate a secure build id from Date.now() and 8 random bytes in hex
|
||||
if (callback == null) { callback = function(error, buildId) {}; }
|
||||
return crypto.randomBytes(8, function(err, buf) {
|
||||
if (err != null) { return callback(err); }
|
||||
const random = buf.toString('hex');
|
||||
const date = Date.now().toString(16);
|
||||
return callback(err, `${date}-${random}`);
|
||||
});
|
||||
},
|
||||
|
||||
saveOutputFiles(outputFiles, compileDir, callback) {
|
||||
if (callback == null) { callback = function(error) {}; }
|
||||
return OutputCacheManager.generateBuildId(function(err, buildId) {
|
||||
if (err != null) { return callback(err); }
|
||||
return OutputCacheManager.saveOutputFilesInBuildDir(outputFiles, compileDir, buildId, callback);
|
||||
});
|
||||
},
|
||||
|
||||
saveOutputFilesInBuildDir(outputFiles, compileDir, buildId, callback) {
|
||||
// make a compileDir/CACHE_SUBDIR/build_id directory and
|
||||
// copy all the output files into it
|
||||
if (callback == null) { callback = function(error) {}; }
|
||||
const cacheRoot = Path.join(compileDir, OutputCacheManager.CACHE_SUBDIR);
|
||||
// Put the files into a new cache subdirectory
|
||||
const cacheDir = Path.join(compileDir, OutputCacheManager.CACHE_SUBDIR, buildId);
|
||||
// Is it a per-user compile? check if compile directory is PROJECTID-USERID
|
||||
const perUser = Path.basename(compileDir).match(/^[0-9a-f]{24}-[0-9a-f]{24}$/);
|
||||
|
||||
// Archive logs in background
|
||||
if ((Settings.clsi != null ? Settings.clsi.archive_logs : undefined) || (Settings.clsi != null ? Settings.clsi.strace : undefined)) {
|
||||
OutputCacheManager.archiveLogs(outputFiles, compileDir, buildId, function(err) {
|
||||
if (err != null) {
|
||||
return logger.warn({err}, "erroring archiving log files");
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
// make the new cache directory
|
||||
return fse.ensureDir(cacheDir, function(err) {
|
||||
if (err != null) {
|
||||
logger.error({err, directory: cacheDir}, "error creating cache directory");
|
||||
return callback(err, outputFiles);
|
||||
} else {
|
||||
// copy all the output files into the new cache directory
|
||||
const results = [];
|
||||
return async.mapSeries(outputFiles, function(file, cb) {
|
||||
// don't send dot files as output, express doesn't serve them
|
||||
if (OutputCacheManager._fileIsHidden(file.path)) {
|
||||
logger.debug({compileDir, path: file.path}, "ignoring dotfile in output");
|
||||
return cb();
|
||||
}
|
||||
// copy other files into cache directory if valid
|
||||
const newFile = _.clone(file);
|
||||
const [src, dst] = Array.from([Path.join(compileDir, file.path), Path.join(cacheDir, file.path)]);
|
||||
return OutputCacheManager._checkFileIsSafe(src, function(err, isSafe) {
|
||||
if (err != null) { return cb(err); }
|
||||
if (!isSafe) {
|
||||
return cb();
|
||||
}
|
||||
return OutputCacheManager._checkIfShouldCopy(src, function(err, shouldCopy) {
|
||||
if (err != null) { return cb(err); }
|
||||
if (!shouldCopy) {
|
||||
return cb();
|
||||
}
|
||||
return OutputCacheManager._copyFile(src, dst, function(err) {
|
||||
if (err != null) { return cb(err); }
|
||||
newFile.build = buildId; // attach a build id if we cached the file
|
||||
results.push(newFile);
|
||||
return cb();
|
||||
});
|
||||
});
|
||||
});
|
||||
}
|
||||
, function(err) {
|
||||
if (err != null) {
|
||||
// pass back the original files if we encountered *any* error
|
||||
callback(err, outputFiles);
|
||||
// clean up the directory we just created
|
||||
return fse.remove(cacheDir, function(err) {
|
||||
if (err != null) {
|
||||
return logger.error({err, dir: cacheDir}, "error removing cache dir after failure");
|
||||
}
|
||||
});
|
||||
} else {
|
||||
// pass back the list of new files in the cache
|
||||
callback(err, results);
|
||||
// let file expiry run in the background, expire all previous files if per-user
|
||||
return OutputCacheManager.expireOutputFiles(cacheRoot, {keep: buildId, limit: perUser ? 1 : null});
|
||||
}
|
||||
});
|
||||
}
|
||||
});
|
||||
},
|
||||
|
||||
archiveLogs(outputFiles, compileDir, buildId, callback) {
|
||||
if (callback == null) { callback = function(error) {}; }
|
||||
const archiveDir = Path.join(compileDir, OutputCacheManager.ARCHIVE_SUBDIR, buildId);
|
||||
logger.log({dir: archiveDir}, "archiving log files for project");
|
||||
return fse.ensureDir(archiveDir, function(err) {
|
||||
if (err != null) { return callback(err); }
|
||||
return async.mapSeries(outputFiles, function(file, cb) {
|
||||
const [src, dst] = Array.from([Path.join(compileDir, file.path), Path.join(archiveDir, file.path)]);
|
||||
return OutputCacheManager._checkFileIsSafe(src, function(err, isSafe) {
|
||||
if (err != null) { return cb(err); }
|
||||
if (!isSafe) { return cb(); }
|
||||
return OutputCacheManager._checkIfShouldArchive(src, function(err, shouldArchive) {
|
||||
if (err != null) { return cb(err); }
|
||||
if (!shouldArchive) { return cb(); }
|
||||
return OutputCacheManager._copyFile(src, dst, cb);
|
||||
});
|
||||
});
|
||||
}
|
||||
, callback);
|
||||
});
|
||||
},
|
||||
|
||||
expireOutputFiles(cacheRoot, options, callback) {
|
||||
// look in compileDir for build dirs and delete if > N or age of mod time > T
|
||||
if (callback == null) { callback = function(error) {}; }
|
||||
return fs.readdir(cacheRoot, function(err, results) {
|
||||
if (err != null) {
|
||||
if (err.code === 'ENOENT') { return callback(null); } // cache directory is empty
|
||||
logger.error({err, project_id: cacheRoot}, "error clearing cache");
|
||||
return callback(err);
|
||||
}
|
||||
|
||||
const dirs = results.sort().reverse();
|
||||
const currentTime = Date.now();
|
||||
|
||||
const isExpired = function(dir, index) {
|
||||
if ((options != null ? options.keep : undefined) === dir) { return false; }
|
||||
// remove any directories over the requested (non-null) limit
|
||||
if (((options != null ? options.limit : undefined) != null) && (index > options.limit)) { return true; }
|
||||
// remove any directories over the hard limit
|
||||
if (index > OutputCacheManager.CACHE_LIMIT) { return true; }
|
||||
// we can get the build time from the first part of the directory name DDDD-RRRR
|
||||
// DDDD is date and RRRR is random bytes
|
||||
const dirTime = parseInt(__guard__(dir.split('-'), x => x[0]), 16);
|
||||
const age = currentTime - dirTime;
|
||||
return age > OutputCacheManager.CACHE_AGE;
|
||||
};
|
||||
|
||||
const toRemove = _.filter(dirs, isExpired);
|
||||
|
||||
const removeDir = (dir, cb) =>
|
||||
fse.remove(Path.join(cacheRoot, dir), function(err, result) {
|
||||
logger.log({cache: cacheRoot, dir}, "removed expired cache dir");
|
||||
if (err != null) {
|
||||
logger.error({err, dir}, "cache remove error");
|
||||
}
|
||||
return cb(err, result);
|
||||
})
|
||||
;
|
||||
|
||||
return async.eachSeries(toRemove, (dir, cb) => removeDir(dir, cb)
|
||||
, callback);
|
||||
});
|
||||
},
|
||||
|
||||
_fileIsHidden(path) {
|
||||
return ((path != null ? path.match(/^\.|\/\./) : undefined) != null);
|
||||
},
|
||||
|
||||
_checkFileIsSafe(src, callback) {
|
||||
// check if we have a valid file to copy into the cache
|
||||
if (callback == null) { callback = function(error, isSafe) {}; }
|
||||
return fs.stat(src, function(err, stats) {
|
||||
if ((err != null ? err.code : undefined) === 'ENOENT') {
|
||||
logger.warn({err, file: src}, "file has disappeared before copying to build cache");
|
||||
return callback(err, false);
|
||||
} else if (err != null) {
|
||||
// some other problem reading the file
|
||||
logger.error({err, file: src}, "stat error for file in cache");
|
||||
return callback(err, false);
|
||||
} else if (!stats.isFile()) {
|
||||
// other filetype - reject it
|
||||
logger.warn({src, stat: stats}, "nonfile output - refusing to copy to cache");
|
||||
return callback(null, false);
|
||||
} else {
|
||||
// it's a plain file, ok to copy
|
||||
return callback(null, true);
|
||||
}
|
||||
});
|
||||
},
|
||||
|
||||
_copyFile(src, dst, callback) {
|
||||
// copy output file into the cache
|
||||
return fse.copy(src, dst, function(err) {
|
||||
if ((err != null ? err.code : undefined) === 'ENOENT') {
|
||||
logger.warn({err, file: src}, "file has disappeared when copying to build cache");
|
||||
return callback(err, false);
|
||||
} else if (err != null) {
|
||||
logger.error({err, src, dst}, "copy error for file in cache");
|
||||
return callback(err);
|
||||
} else {
|
||||
if ((Settings.clsi != null ? Settings.clsi.optimiseInDocker : undefined)) {
|
||||
// don't run any optimisations on the pdf when they are done
|
||||
// in the docker container
|
||||
return callback();
|
||||
} else {
|
||||
// call the optimiser for the file too
|
||||
return OutputFileOptimiser.optimiseFile(src, dst, callback);
|
||||
}
|
||||
}
|
||||
});
|
||||
},
|
||||
|
||||
_checkIfShouldCopy(src, callback) {
|
||||
if (callback == null) { callback = function(err, shouldCopy) {}; }
|
||||
return callback(null, !Path.basename(src).match(/^strace/));
|
||||
},
|
||||
|
||||
_checkIfShouldArchive(src, callback) {
|
||||
let needle;
|
||||
if (callback == null) { callback = function(err, shouldCopy) {}; }
|
||||
if (Path.basename(src).match(/^strace/)) {
|
||||
return callback(null, true);
|
||||
}
|
||||
if ((Settings.clsi != null ? Settings.clsi.archive_logs : undefined) && (needle = Path.basename(src), ["output.log", "output.blg"].includes(needle))) {
|
||||
return callback(null, true);
|
||||
}
|
||||
return callback(null, false);
|
||||
}
|
||||
});
|
||||
|
||||
function __guard__(value, transform) {
|
||||
return (typeof value !== 'undefined' && value !== null) ? transform(value) : undefined;
|
||||
}
|
||||
Reference in New Issue
Block a user