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import { copyFile, writeFile } from "fs/promises";
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import ensureContainingDirectoryExists from "@cocalc/backend/misc/ensure-containing-directory-exists";
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import { exists } from "@cocalc/backend/misc/async-utils-node";
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import { platform } from "os";
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import { filename_extension } from "@cocalc/util/misc";
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import { root } from "@cocalc/backend/data";
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import { join } from "path";
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9
export async function newFile(path: string) {
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  if (!process.env.HOME) {
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    throw Error("HOME must be set");
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  }
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  if (!path) {
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    return;
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  }
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  path = path.startsWith("/") ? path : join(process.env.HOME, path);
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18
  if (await exists(path)) {
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    return;
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  }
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22
  await ensureContainingDirectoryExists(path);
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  const ext = filename_extension(path);
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  const PLATFORM = platform().toLowerCase();
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26
  for (const place of [
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    process.env.HOME,
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    join(root, "smc_pyutil", "smc_pyutil"),
29
  ]) {
30
    const template = join(place, "templates", PLATFORM, "default." + ext);
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    if (await exists(template)) {
32
      await copyFile(template, path);
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      return;
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    }
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  }
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  await writeFile(path, "");
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}
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