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Add File.stat. Use it to cache manifests to speed up task start. async spreads like a virus.

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git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@3377 ed5197a5-7fde-0310-b194-c3ffbd925b24
This commit is contained in:
Cory McWilliams
2017-01-13 01:04:00 +00:00
parent 63361ec1f8
commit c1b75821bf
4 changed files with 86 additions and 10 deletions
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26
core/core.js
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@ -105,7 +105,7 @@ function databaseGetAll() {
return getDatabase(this).getAll();
}
function getPackages() {
async function getPackages() {
var packages = [];
var packageOwners = File.readDirectory("packages/");
for (var i = 0; i < packageOwners.length; i++) {
@ -116,7 +116,7 @@ function getPackages() {
packages.push({
owner: packageOwners[i],
name: packageNames[j],
manifest: getManifest("packages/" + packageOwners[i] + "/" + packageNames[j] + "/" + packageNames[j] + ".js"),
manifest: await getManifest("packages/" + packageOwners[i] + "/" + packageNames[j] + "/" + packageNames[j] + ".js"),
});
}
}
@ -195,7 +195,17 @@ function readFileUtf8(fileName) {
return new TextDecoder("UTF-8").decode(File.readFile(fileName));
}
function getManifest(fileName) {
let gManifestCache = {};
async function getManifest(fileName) {
let oldEntry = gManifestCache[fileName];
let stat = await File.stat(fileName);
if (oldEntry) {
if (oldEntry.stat.mtime == stat.mtime && oldEntry.stat.size == stat.size) {
return oldEntry.manifest;
}
}
let manifest = [];
let lines = readFileUtf8(fileName).split("\n").map(x => x.trimRight());
for (let i = 0; i < lines.length; i++) {
@ -212,6 +222,12 @@ function getManifest(fileName) {
print("ERROR: getManifest(" + fileName + "): ", error);
// Oh well. No manifest.
}
gManifestCache[fileName] = {
stat: stat,
manifest: result,
};
return result;
}
@ -220,7 +236,7 @@ function packageNameToPath(name) {
return "packages/" + process.packageOwner + "/" + name + "/";
}
function getProcess(packageOwner, packageName, key, options) {
async function getProcess(packageOwner, packageName, key, options) {
var process = gProcesses[key];
if (!process
&& !(options && "create" in options && !options.create)
@ -229,7 +245,7 @@ function getProcess(packageOwner, packageName, key, options) {
try {
print("Creating task for " + packageName + " " + key);
var fileName = "packages/" + packageOwner + "/" + packageName + "/" + packageName + ".js";
var manifest = getManifest(fileName);
var manifest = await getManifest(fileName);
process = {};
process.key = key;
process.index = gProcessIndex++;