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Fall back to making a regular copy if hard linking fails #75

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Merged
jhheider merged 3 commits into from
Feb 4, 2026
+13 −2
Merged

Fall back to making a regular copy if hard linking fails #75

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6cb56cd
Fall back to making a regular copy if hard linking fails (it is prett…
tclementdev Dec 9, 2025
366b9b4
Implement fallback warning for hard linking failure
jhheider Feb 4, 2026
31cee76
fix lint
jhheider Feb 4, 2026
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15 changes: 13 additions & 2 deletions pkgm.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -347,6 +347,7 @@ async function query_pkgx(
}

async function mirror_directory(dst: string, src: string, prefix: string) {
let warned_copy_fallback = false;
await processEntry(join(src, prefix), join(dst, prefix));

async function processEntry(sourcePath: string, targetPath: string) {
Expand All @@ -367,8 +368,18 @@ async function mirror_directory(dst: string, src: string, prefix: string) {
if (existsSync(targetPath)) {
await Deno.remove(targetPath);
}
// Create a hard link for files
await Deno.link(sourcePath, targetPath);
try {
await Deno.link(sourcePath, targetPath);
} catch {
if (!warned_copy_fallback) {
console.warn(
"%c! hardlinking failed (possibly cross-device?), falling back to file copy",
"color:yellow",
);
warned_copy_fallback = true;
}
await Deno.copyFile(sourcePath, targetPath);
}
} else if (fileInfo.isSymlink) {
// Recreate symlink in the target directory
const linkTarget = await Deno.readLink(sourcePath);
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