Rewrite auto-update

Everything now happens in main.ts, in the bootstrap family of
functions. The current flow is:

* check everything only on extension installation.
* if the user is on nightly channel, try to download the nightly
  extension and reload.
* when we install nightly extension, we persist its release id, so
  that we can check if the current release is different.
* if server binary was not downloaded by the current version of the
  extension, redownload it (we persist the version of ext that
  downloaded the server).

1 files changed, 0 insertions, 97 deletions

diff --git a/editors/code/src/installation/downloads.ts b/editors/code/src/installation/downloads.ts
deleted file mode 100644
index 7ce2e2960..000000000
--- a/editors/code/src/installation/downloads.ts
+++ /dev/null
@@ -1,97 +0,0 @@
-import fetch from "node-fetch";
-import * as vscode from "vscode";
-import * as path from "path";
-import * as fs from "fs";
-import * as stream from "stream";
-import * as util from "util";
-import { log, assert } from "../util";
-import { ArtifactReleaseInfo } from "./interfaces";
-
-const pipeline = util.promisify(stream.pipeline);
-
-/**
- * Downloads file from `url` and stores it at `destFilePath` with `destFilePermissions`.
- * `onProgress` callback is called on recieveing each chunk of bytes
- * to track the progress of downloading, it gets the already read and total
- * amount of bytes to read as its parameters.
- */
-export async function downloadFile(
-    url: string,
-    destFilePath: fs.PathLike,
-    destFilePermissions: number,
-    onProgress: (readBytes: number, totalBytes: number) => void
-): Promise<void> {
-    const res = await fetch(url);
-
-    if (!res.ok) {
-        log.error("Error", res.status, "while downloading file from", url);
-        log.error({ body: await res.text(), headers: res.headers });
-
-        throw new Error(`Got response ${res.status} when trying to download a file.`);
-    }
-
-    const totalBytes = Number(res.headers.get('content-length'));
-    assert(!Number.isNaN(totalBytes), "Sanity check of content-length protocol");
-
-    log.debug("Downloading file of", totalBytes, "bytes size from", url, "to", destFilePath);
-
-    let readBytes = 0;
-    res.body.on("data", (chunk: Buffer) => {
-        readBytes += chunk.length;
-        onProgress(readBytes, totalBytes);
-    });
-
-    const destFileStream = fs.createWriteStream(destFilePath, { mode: destFilePermissions });
-
-    await pipeline(res.body, destFileStream);
-    return new Promise<void>(resolve => {
-        destFileStream.on("close", resolve);
-        destFileStream.destroy();
-
-        // Details on workaround: https://github.com/rust-analyzer/rust-analyzer/pull/3092#discussion_r378191131
-        // Issue at nodejs repo: https://github.com/nodejs/node/issues/31776
-    });
-}
-
-/**
- * Downloads artifact from given `downloadUrl`.
- * Creates `installationDir` if it is not yet created and puts the artifact under
- * `artifactFileName`.
- * Displays info about the download progress in an info message printing the name
- * of the artifact as `displayName`.
- */
-export async function downloadArtifactWithProgressUi(
-    { downloadUrl, releaseName }: ArtifactReleaseInfo,
-    artifactFileName: string,
-    installationDir: string,
-    displayName: string,
-) {
-    await fs.promises.mkdir(installationDir).catch(err => assert(
-        err?.code === "EEXIST",
-        `Couldn't create directory "${installationDir}" to download ` +
-        `${artifactFileName} artifact: ${err?.message}`
-    ));
-
-    const installationPath = path.join(installationDir, artifactFileName);
-
-    await vscode.window.withProgress(
-        {
-            location: vscode.ProgressLocation.Notification,
-            cancellable: false, // FIXME: add support for canceling download?
-            title: `Downloading rust-analyzer ${displayName} (${releaseName})`
-        },
-        async (progress, _cancellationToken) => {
-            let lastPrecentage = 0;
-            const filePermissions = 0o755; // (rwx, r_x, r_x)
-            await downloadFile(downloadUrl, installationPath, filePermissions, (readBytes, totalBytes) => {
-                const newPercentage = (readBytes / totalBytes) * 100;
-                progress.report({
-                    message: newPercentage.toFixed(0) + "%",
-                    increment: newPercentage - lastPrecentage
-                });
-
-                lastPrecentage = newPercentage;
-            });
-        }
-    );
-}