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Use DB cache and new translators.index file in XPIs to skip unnecessary translator extraction on upgrades

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This commit is contained in:
Dan Stillman 2010-06-29 06:04:04 +00:00
parent 0876e689c8
commit ae65267d5d
1 changed files with 118 additions and 37 deletions
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155
chrome/content/zotero/xpcom/schema.js
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@ -565,6 +565,7 @@ Zotero.Schema = new function(){
var sql = "SELECT version FROM version WHERE schema=?";
var lastModTime = Zotero.DB.valueQuery(sql, modes);
// XPI installation
if (zipFile.exists()) {
var modTime = Math.round(zipFile.lastModifiedTime / 1000);
@ -575,37 +576,84 @@ Zotero.Schema = new function(){
Zotero.debug("Updating installed " + modes + " from " + modes + ".zip");
if (mode == 'translator') {
// Parse translators.index
var indexFile = extDir.clone();
indexFile.append('translators.index');
if (!indexFile.exists()) {
Components.utils.reportError("translators.index not found in Zotero.Schema.updateBundledFiles()");
return false;
}
var indexFile = Zotero.File.getContents(indexFile);
indexFile = indexFile.split("\n");
var index = {};
for each(var line in indexFile) {
if (!line) {
continue;
}
var [fileName, translatorID, label, lastUpdated] = line.split(',');
if (!translatorID) {
Components.utils.reportError("Invalid translatorID '" + translatorID + "' in Zotero.Schema.updateBundledFiles()");
return false;
}
index[translatorID] = {
label: label,
lastUpdated: lastUpdated,
fileName: fileName, // Numbered JS file within ZIP
extract: true
};
}
var sql = "SELECT translatorJSON FROM translatorCache";
var dbCache = Zotero.DB.columnQuery(sql);
// If there's anything in the cache, see what we actually need to extract
if (dbCache) {
var nsIJSON = Components.classes["@mozilla.org/dom/json;1"]
.createInstance(Components.interfaces.nsIJSON);
for each(var json in dbCache) {
var metadata = nsIJSON.decode(json);
var id = metadata.translatorID;
if (index[id] && index[id].lastUpdated == metadata.lastUpdated) {
index[id].extract = false;
}
}
}
}
var zipReader = Components.classes["@mozilla.org/libjar/zip-reader;1"]
.getService(Components.interfaces.nsIZipReader);
zipReader.open(zipFile);
var tmpDir = Zotero.getTempDirectory();
var entries = zipReader.findEntries(null);
while (entries.hasMore()) {
var entry = entries.getNext();
var tmpFile = tmpDir.clone();
tmpFile.append(entry);
if (tmpFile.exists()) {
tmpFile.remove(false);
}
zipReader.extract(entry, tmpFile);
var newObj = new Zotero[Mode](tmpFile);
var existingObj = Zotero[Modes].get(newObj[mode + "ID"]);
if (!existingObj) {
Zotero.debug("Installing " + mode + " '" + newObj[titleField] + "'");
}
else {
Zotero.debug("Updating "
+ (existingObj.hidden ? "hidden " : "")
+ mode + " '" + existingObj[titleField] + "'");
if (existingObj.file.exists()) {
existingObj.file.remove(false);
if (mode == 'translator') {
for (var translatorID in index) {
// Use index file and DB cache for translator entries,
// extracting only what's necessary
var entry = index[translatorID];
if (!entry.extract) {
Zotero.debug("Not extracting '" + entry.label + "' -- same version already in cache");
continue;
}
}
if (mode == 'translator') {
var fileName = Zotero.File.getValidFileName(newObj[titleField]) + fileExt;
var tmpFile = tmpDir.clone();
tmpFile.append(entry.fileName);
if (tmpFile.exists()) {
tmpFile.remove(false);
}
zipReader.extract(entry.fileName, tmpFile);
var existingObj = Zotero.Translators.get(translatorID);
if (!existingObj) {
Zotero.debug("Installing translator '" + entry.label + "'");
}
else {
Zotero.debug("Updating translator '" + existingObj.label + "'");
if (existingObj.file.exists()) {
existingObj.file.remove(false);
}
}
var fileName = Zotero.File.getValidFileName(entry.label) + fileExt;
var destFile = destDir.clone();
destFile.append(fileName);
@ -616,22 +664,55 @@ Zotero.Schema = new function(){
Components.utils.reportError(msg + " in Zotero.Schema.updateBundledFiles()");
destFile.remove(false);
}
}
else if (mode == 'style') {
var fileName = tmpFile.leafName;
}
if (!existingObj || !existingObj.hidden) {
tmpFile.moveTo(destDir, fileName);
Zotero.wait();
}
else {
tmpFile.moveTo(hiddenDir, fileName);
}
Zotero.wait();
}
// Styles
else {
var entries = zipReader.findEntries(null);
while (entries.hasMore()) {
var entry = entries.getNext();
var tmpFile = tmpDir.clone();
tmpFile.append(entry);
if (tmpFile.exists()) {
tmpFile.remove(false);
}
zipReader.extract(entry, tmpFile);
var newObj = new Zotero[Mode](tmpFile);
var existingObj = Zotero[Modes].get(newObj[mode + "ID"]);
if (!existingObj) {
Zotero.debug("Installing " + mode + " '" + newObj[titleField] + "'");
}
else {
Zotero.debug("Updating "
+ (existingObj.hidden ? "hidden " : "")
+ mode + " '" + existingObj[titleField] + "'");
if (existingObj.file.exists()) {
existingObj.file.remove(false);
}
}
var fileName = tmpFile.leafName;
if (!existingObj || !existingObj.hidden) {
tmpFile.moveTo(destDir, fileName);
}
else {
tmpFile.moveTo(hiddenDir, fileName);
}
Zotero.wait();
}
}
zipReader.close();
}
// SVN installation
else {
var sourceDir = extDir.clone();
sourceDir.append(modes);