122 lines
3.3 KiB
D
122 lines
3.3 KiB
D
import std.array;
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import std.algorithm;
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import std.experimental.logger;
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import std.file;
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import std.stdio;
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import vibe.d;
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import app;
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import page;
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/**
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* Loads pages into memory and sets up a "watcher" to watch a directory for file changes.
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*/
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void initPages(T, string sortPred)(ref T[string] array, ref T*[] sortedRange, const string directory) {
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bool addPage(string path) {
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try {
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T newPage = new T(path);
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logf("Added %s", newPage.slug);
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array[newPage.slug] = newPage;
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return true;
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} catch (page.ArticleParseException e) {
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logf("Could not parse %s", path);
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return false;
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}
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}
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// Initial scan
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void scan(NativePath path, int level = 0) {
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logf("Scanning %s", path.toString());
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foreach(file; iterateDirectory(path)) {
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if (file.isDirectory) {
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scan(path ~ file.name, level + 1);
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} else {
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addPage((path ~ file.name).toString());
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}
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}
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}
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void sortThings() {
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sortedRange = sort!(sortPred)(array.values)
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.filter!(x => !x.isHidden)
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.map!"&a".array;
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logf("sorted: %s", sortedRange);
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}
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if (!existsFile(getWorkingDirectory() ~ directory)) {
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createDirectory(getWorkingDirectory() ~ directory);
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}
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scan(getWorkingDirectory() ~ directory);
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sortThings();
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DirectoryWatcher watcher = watchDirectory(getWorkingDirectory() ~ directory, true);
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//auto watcher = FileWatch((getWorkingDirectory() ~ directory).toString(), true);
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bool shouldStop = false;
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while (!shouldStop) {
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// Try to reduce changes to only one DirectoryChangeType per change
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DirectoryChange[] changes;
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shouldStop = !watcher.readChanges(changes);
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foreach(change; changes) {
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logf("=======[New changes]======");
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string[] changeTypes = ["added", "removed", "modified"];
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logf("Path: %s, type: %s", change.path.toString(), changeTypes[change.type]);
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if (endsWith(change.path.toString(), ".kate-swp")) continue;
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switch (change.type) with (DirectoryChangeType){
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case added:
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try {
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addPage(change.path.toString());
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} catch(Exception e) {
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warningf("Error while updating %s: %s", change.path.toString(), e.msg);
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}
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break;
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case modified:
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T newPage;
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try {
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newPage = new T(change.path.toString());
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log(newPage.slug);
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if (newPage.slug in array) {
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log("Slug not changed");
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array[newPage.slug] = newPage;
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} else {
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log("Slug changed");
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foreach(item; array) {
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if (item.name == change.path.toString()) {
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logf("Removed %s, which is the old slug of %s", newPage.slug, item.slug);
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array.remove(item.slug);
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}
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}
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}
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logf("%s modified: %s", typeid(T).stringof, newPage.slug);
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array[newPage.slug] = newPage;
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} catch(page.ArticleParseException e) {
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warningf("Could not parse %s", change.path.toString());
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} catch (Exception e) {
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warningf("Error while updating %s: %s", change.path.toString(), e.msg);
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}
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break;
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case removed:
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try {
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foreach(item; array.byValue) {
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logf(" - %s", item.name);
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if (item.name == change.path.toString()) {
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logf("Removed %s", item.slug);
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array.remove(item.slug);
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}
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}
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} catch(Exception e) {}
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break;
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default: break;
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}
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log("Current state:");
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//sortedRange = sort!("a."~sortProp~" < b."~sortProp)(array.values);
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sortThings();
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foreach (item; array) {
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logf("%s - %s", item.name, item.slug);
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}
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}
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}
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}
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