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coarse check / fine check

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Seth Trowbridge 2024-10-11 16:11:42 -04:00
parent e892449c63
commit 904f7944b2
2 changed files with 59 additions and 40 deletions
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3
transpiler/_test.html Normal file
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transpiler/walker.html
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<body>
<button id="open">open</button>
<script type="module">
// Function to walk through the directory and check files
async function checkFiles(dirHandle, extension, date, path="", /** @type {Map<string, File>}*/map, /** @type {Map<string, File>}*/deleteList, /** @type {Array<{fullPath:string, file:File>}*/focusList) {
for await (const entry of dirHandle.values())
{
if (entry.kind === 'file' && entry.name.endsWith(extension))
{
// Function to walk through the directory and update file handles
async function updateFileHandles(dirHandle, extension, path = "", map) {
for await (const entry of dirHandle.values()) {
if (entry.kind === 'file' && entry.name.endsWith(extension)) {
const file = await entry.getFile();
const fullPath = path + entry.name;
map.set(fullPath, file);
deleteList.delete(fullPath);
if (file.lastModified > date)
{
focusList.push({file, fullPath});
if (!map.has(dirHandle)) {
map.set(dirHandle, new Set());
}
} else if (entry.kind === 'directory')
{
await checkFiles(entry, extension, date, path+entry.name, map, deleteList, focusList); // Recursively check subdirectories
map.get(dirHandle).add(fullPath);
} else if (entry.kind === 'directory') {
await updateFileHandles(entry, extension, path + entry.name + "/", map); // Recursively check subdirectories
}
}
}
// Main function to set up the interval polling task
// Function to check modified dates of known file handles
async function checkModifiedDates(map, date) {
const focusFiles = [];
for (const [dirHandle, filenames] of map.entries()) {
for (const filename of filenames) {
try
{
const fileHandle = await dirHandle.getFileHandle(filename.split('/').pop());
const file = await fileHandle.getFile();
if (file.lastModified > date.getTime()) {
focusFiles.push({ file, fullPath: filename });
}
}
catch(e)
{
console.log("file deleted?", filename);
filenames.delete(filename);
}
}
}
return focusFiles;
}
// Main function to set up the intervals
async function main() {
const dirHandle = await window.showDirectoryPicker();
const extension = '.html'; // Change this to the desired file extension
let oldFiles = new Map();
let focusFiles = [];
let time = new Date().getTime();
const Loop =async()=>
{
console.log("checking");
let fileHandlesMap = new Map();
let lastCheckTime = new Date().getTime();
focusFiles = [];
const CoarseCheck = async () => {
console.log("===========coarse check==================");
fileHandlesMap = new Map();
await updateFileHandles(dirHandle, extension, "", fileHandlesMap);
setTimeout(CoarseCheck, 10000);
};
/** @type {Map<string, File>} */
const newFiles = new Map();
await checkFiles(dirHandle, extension, time, undefined, newFiles, oldFiles, focusFiles);
// oldFiles now represent delete list
oldFiles.size && console.log("delete:", oldFiles);
// process updated files
focusFiles.length && console.log("update:", focusFiles);
// reset resources
oldFiles = newFiles;
time = new Date().getTime();
setTimeout(Loop, 3000);
const FineCheck =async()=>{
const focusFiles = await checkModifiedDates(fileHandlesMap, new Date(lastCheckTime));
if (focusFiles.length) {
console.log("Updated files:", focusFiles);
// Open the updated files or handle them as needed
}
lastCheckTime = new Date().getTime();
setTimeout(FineCheck, 1000);
}
Loop();
CoarseCheck();
FineCheck();
}
document.getElementById("open").addEventListener("click", main);
</script>
</body>