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refactor(core): improve dev perf, fine-grained site reloads - part 3 (#9975)

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Sébastien Lorber 2024-03-28 12:39:07 +01:00 • committed by GitHub
parent 06e70a4f9a
commit efbe474e9c
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22 changed files with 359 additions and 286 deletions
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10
packages/docusaurus-utils/src/emitUtils.ts
View file

@ -12,6 +12,10 @@ import {findAsyncSequential} from './jsUtils';
const fileHash = new Map<string, string>();
const hashContent = (content: string): string => {
return createHash('md5').update(content).digest('hex');
};
/**
* Outputs a file to the generated files directory. Only writes files if content
* differs from cache (for hot reload performance).
@ -38,7 +42,7 @@ export async function generate(
// first "A" remains in cache. But if the file never existed in cache, no
// need to register it.
if (fileHash.get(filepath)) {
fileHash.set(filepath, createHash('md5').update(content).digest('hex'));
fileHash.set(filepath, hashContent(content));
}
return;
}
@ -50,11 +54,11 @@ export async function generate(
// overwriting and we can reuse old file.
if (!lastHash && (await fs.pathExists(filepath))) {
const lastContent = await fs.readFile(filepath, 'utf8');
lastHash = createHash('md5').update(lastContent).digest('hex');
lastHash = hashContent(lastContent);
fileHash.set(filepath, lastHash);
}
const currentHash = createHash('md5').update(content).digest('hex');
const currentHash = hashContent(content);
if (lastHash !== currentHash) {
await fs.outputFile(filepath, content);

15
packages/docusaurus-utils/src/gitUtils.ts
View file

@ -6,7 +6,16 @@
*/
import path from 'path';
import shell from 'shelljs';
import fs from 'fs-extra';
import _ from 'lodash';
import shell from 'shelljs'; // TODO replace with async-first version
const realHasGitFn = () => !!shell.which('git');
// The hasGit call is synchronous IO so we memoize it
// The user won't install Git in the middle of a build anyway...
const hasGit =
process.env.NODE_ENV === 'test' ? realHasGitFn : _.memoize(realHasGitFn);
/** Custom error thrown when git is not found in `PATH`. */
export class GitNotFoundError extends Error {}
@ -86,13 +95,13 @@ export async function getFileCommitDate(
timestamp: number;
author?: string;
}> {
if (!shell.which('git')) {
if (!hasGit()) {
throw new GitNotFoundError(
`Failed to retrieve git history for "${file}" because git is not installed.`,
);
}
if (!shell.test('-f', file)) {
if (!(await fs.pathExists(file))) {
throw new Error(
`Failed to retrieve git history for "${file}" because the file does not exist.`,
);