From c8b4af02304f598aa74858de768dfd787d50a6fc Mon Sep 17 00:00:00 2001
From: Devraj Mehta <devm33@github.com>
Date: Fri, 12 Dec 2025 15:00:46 -0500
Subject: [PATCH] Allow specifying a version for the install script

---
 README.md  |  2 ++
 install.sh | 12 +++++++++++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 6bdf404e..085f8837 100644
--- a/README.md
+++ b/README.md
@@ -74,6 +74,8 @@ Use `| sudo bash` to run as root and install to `/usr/local/bin`.
 Set `PREFIX` to install to `$PREFIX/bin/` directory. Defaults to `/usr/local`
 when run as root or `$HOME/.local` when run as a non-root user.
 
+Set `VERSION` to install a specific version. Defaults to the latest version.
+
 ### Launching the CLI
 
 ```bash
diff --git a/install.sh b/install.sh
index 39f069fa..c6632e0a 100755
--- a/install.sh
+++ b/install.sh
@@ -34,7 +34,17 @@ case "$(uname -m)" in
   *) echo "Error: Unsupported architecture $(uname -m)" >&2 ; exit 1 ;;
 esac
 
-DOWNLOAD_URL="https://github.com/github/copilot-cli/releases/latest/download/copilot-${PLATFORM}-${ARCH}.tar.gz"
+# Determine download URL based on VERSION
+if [ -n "$VERSION" ]; then
+  # Prefix version with 'v' if not already present
+  case "$VERSION" in
+    v*) ;;
+    *) VERSION="v$VERSION" ;;
+  esac
+  DOWNLOAD_URL="https://github.com/github/copilot-cli/releases/download/${VERSION}/copilot-${PLATFORM}-${ARCH}.tar.gz"
+else
+  DOWNLOAD_URL="https://github.com/github/copilot-cli/releases/latest/download/copilot-${PLATFORM}-${ARCH}.tar.gz"
+fi
 echo "Downloading from: $DOWNLOAD_URL"
 
 # Download and extract with error handling