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Re-organise cli.ts into functions and sub-commands

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Add the necessary boilerplate for cli.ts to provide more than one
command, with the resource gathering step split out from the build
step in order for it to be re-usable.
This commit is contained in:
Hornwitser 2025-02-01 16:25:45 +01:00
parent 1efd21a4a0
commit f708088ef7
2 changed files with 62 additions and 17 deletions
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77
cli.ts
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@ -19,22 +19,67 @@ function pageToHtml(page: Page) {
)
}
const outDir = "build/web";
if (!fs.existsSync(outDir)) {
fs.mkdirSync(outDir);
}
for (const page of pages) {
const dirSep = page.ref.indexOf("/", 1);
if (dirSep !== -1) {
const dir = `${outDir}/${page.ref.slice(0, dirSep)}`;
if (!fs.existsSync(dir)) {
fs.mkdirSync(dir);
}
function assembleResources() {
const webDir = "public";
const resources = new Map<string, string | Page>();
for (const entry of fs.readdirSync(webDir, { recursive: true, withFileTypes: true })) {
if (!entry.isFile())
continue;
const parentPath = entry.parentPath.replace(/\\/g, "/");
const ref = `${parentPath.slice(webDir.length)}/${entry.name}`;
resources.set(ref, `${parentPath}/${entry.name}`);
}
console.log(`writing ${outDir}${page.ref}`);
fs.writeFileSync(`${outDir}${page.ref}`, pageToHtml(page));
for (const page of pages) {
if (resources.has(page.ref)) {
const existing = resources.get(page.ref)!;
const other = typeof existing === "string" ? "a static resource" : `"${existing.title}"`;
throw new Error(`ref "${page.ref}" is taken up by both "${page.title}" and ${other}`)
}
resources.set(page.ref, page);
}
return resources;
}
console.log(`writing ${outDir}/style.css`);
fs.writeFileSync(`${outDir}/style.css`, fs.readFileSync("public/style.css"));
function build() {
const outDir = "build/web";
const dirsCreated = new Set<string>()
for (const [ref, resource] of assembleResources()) {
const refDir = `${outDir}${posix.dirname(ref)}`;
if (!dirsCreated.has(refDir)) {
fs.mkdirSync(refDir, { recursive: true });
}
console.log(`writing ${outDir}${ref}`);
let content;
if (typeof resource === "string") {
content = fs.readFileSync(resource);
} else {
content = pageToHtml(resource);
}
fs.writeFileSync(`${outDir}${ref}`, content);
}
}
function printUsage() {
console.log("Usage: cli.js <cmd>");
console.log(" build - Copy resources and generated pages to build directory.");
}
function main(runtime: string, script: string, args: string[]) {
if (!args.length) {
printUsage();
process.exitCode = 1;
return;
}
const [command, ...commandArgs] = args;
if (command === "build") {
build();
} else {
console.log(`Error: Unkown sub-command ${command}`);
printUsage();
process.exitCode = 1;
}
}
const [runtime, script, ...args] = process.argv;
main(runtime, script, args)