Add binary source and destination settings

Author: code-asher

package.json

@@ -47,6 +47,16 @@
           "markdownDescription": "If true, the extension will not verify the authenticity of the remote host. This is useful for self-signed certificates.",
           "type": "boolean",
           "default": false
+        },
+        "coder.binarySource": {
+          "markdownDescription": "Used to download the Coder CLI which is necessary to make SSH connections. The If-None-Match header will be set to the SHA1 of the CLI and can be used for caching. Absolute URLs will be used as-is; otherwise this value will be resolved against the deployment domain. Defaults to downloading from the Coder deployment.",
+          "type": "string",
+          "default": ""
+        },
+        "coder.binaryDestination": {
+          "markdownDescription": "The full path of the directory into which the Coder CLI will be downloaded. Defaults to the extension's global storage directory.",
+          "type": "string",
+          "default": ""
         }
       }
     },

src/storage.ts

@@ -117,11 +117,18 @@ export class Storage {
     if (exists) {
       etag = await this.getBinaryETag()
     }
+
+    const configSource = vscode.workspace.getConfiguration().get("coder.binarySource")
+    const binSource = configSource && String(configSource).trim().length > 0
+      ? String(configSource)
+      : "/bin/" + binName
+
     this.output.appendLine(`Using binName: ${binName}`)
     this.output.appendLine(`Using binPath: ${binPath}`)
+    this.output.appendLine(`Using binSource: ${binSource}`)
     this.output.appendLine(`Using ETag: ${etag}`)
 
-    const resp = await axios.get("/bin/" + binName, {
+    const resp = await axios.get(binSource, {
       signal: controller.signal,
       baseURL: baseURL,
       responseType: "stream",
@@ -146,7 +153,7 @@ export class Storage {
         const completed = await vscode.window.withProgress<boolean>(
           {
             location: vscode.ProgressLocation.Notification,
-            title: `Downloading the latest binary (${buildInfo.version} from ${baseURI.authority})`,
+            title: `Downloading the latest binary (${buildInfo.version} from ${axios.getUri(resp.config)}) to ${binPath}`,
             cancellable: true,
           },
           async (progress, token) => {
@@ -260,7 +267,10 @@ export class Storage {
   // getBinaryCachePath returns the path where binaries are cached.
   // The caller must ensure it exists before use.
   public getBinaryCachePath(): string {
-    return path.join(this.globalStorageUri.fsPath, "bin")
+    const configPath = vscode.workspace.getConfiguration().get("coder.binaryDestination")
+    return configPath && String(configPath).trim().length > 0
+      ? path.resolve(String(configPath))
+      : path.join(this.globalStorageUri.fsPath, "bin")
   }
 
   // getNetworkInfoPath returns the path where network information