cli: better versioning

This now prints information about where the cli is installed from, and
the commit hash (+ whether the tree is dirty)

Author: kcsongor

cli/install.sh

@@ -31,10 +31,14 @@ function main {
   done
 
   path=""
+  mkdir -p "$HOME/.ntt-cli"
 
   # check if there's a package.json in the parent directory, with "name": "@wormhole-foundation/ntt-cli"
   if [ -f "$(dirname $0)/package.json" ] && grep -q '"name": "@wormhole-foundation/ntt-cli"' "$(dirname $0)/package.json"; then
   path="$(dirname $0)/.."
+  version=$(git rev-parse HEAD)
+  dirty=$(git diff --quiet || echo "-dirty")
+  echo "$version$dirty" > "$HOME/.ntt-cli/version"
   else
     # if branch is set, use it. otherwise use the latest tag of the form "vX.Y.Z+cli" or the 'cli' branch
     if [ -z "$branch" ]; then
@@ -44,7 +48,6 @@ function main {
     # clone to $HOME/.ntt-cli if it doesn't exist, otherwise update it
     echo "Cloning $REPO $branch"
 
-    mkdir -p "$HOME/.ntt-cli"
     path="$HOME/.ntt-cli/.checkout"
 
     if [ ! -d "$path" ]; then
@@ -56,11 +59,24 @@ function main {
       git fetch origin
       # reset hard
       git reset --hard "origin/$branch"
+      version=$(git rev-parse HEAD)
+      dirty=$(git diff --quiet || echo "-dirty")
+      echo "$version$dirty" > "$HOME/.ntt-cli/version"
       popd
     fi
-
   fi
 
+  absolute_path="$(cd $path && pwd)"
+  echo $absolute_path >> "$HOME/.ntt-cli/version"
+
+  # jq would be nicer but it's not portable
+  # here we make the assumption that the file uses 2 spaces for indentation.
+  # this is a bit fragile, but we don't want to catch further nested objects
+  # (there might be a "version" in the scripts section, for example)
+  version=$(cat "$path/cli/package.json" | grep '^  "version":' | cut -d '"' -f 4)
+  echo "Installing ntt CLI version $version"
+  echo "$version" >> "$HOME/.ntt-cli/version"
+
   install_cli "$path"
 }
 

cli/src/index.ts

@@ -199,6 +199,14 @@ async function withCustomEvmDeployerScript<A>(pwd: string, then: () => Promise<A
 yargs(hideBin(process.argv))
     .wrap(Math.min(process.stdout.columns || 120, 160)) // Use terminal width, but no more than 160 characters
     .scriptName("ntt")
+    .version((() => {
+        const ver = nttVersion();
+        if (!ver) {
+            return "unknown";
+        }
+        const { version, commit, path } = ver;
+        return `ntt v${version} (${commit} ${path})`;
+    })())
     // config group of commands
     .command("config",
         "configuration commands",
@@ -1839,3 +1847,14 @@ function retryWithExponentialBackoff<T>(
     };
     return attempt(0);
 }
+
+function nttVersion(): { version: string, commit: string, path: string } | null {
+    const nttDir = `${process.env.HOME}/.ntt-cli`;
+    try {
+        const versionFile = fs.readFileSync(`${nttDir}/version`).toString().trim();
+        const [commit, installPath, version] = versionFile.split("\n");
+        return { version, commit, path: installPath };
+    } catch {
+        return null;
+    }
+}