improve installer (denoland/deno_std#512)

- remove uninstall command
- add --reload to deno fetch - to ensure subsequent installation 
  upgrades script and deps
- fix executable shebang
- fix prompt for subsequent installation
- support custom installation dir via -d/--dir flag
Original: https://github.com/denoland/deno_std/commit/b13441fe8af151f60cdc2336c53a7196f56fd5b0

1 files changed, 9 insertions, 0 deletions

diff --git a/installer/testdata/args.ts b/installer/testdata/args.ts
new file mode 100644
index 000000000..484cab5ab
--- /dev/null
+++ b/installer/testdata/args.ts
@@ -0,0 +1,9 @@
+function args(args: string[]) {
+  const map = {};
+  for (let i = 0; i < args.length; i++) {
+    map[i] = args[i];
+  }
+  Deno.stdout.write(new TextEncoder().encode(JSON.stringify(map)));
+}
+
+args(Deno.args.slice(1));