retry mechanism

Author: aditya520

package.json

@@ -8,7 +8,7 @@
     "start": "next start",
     "lint": "next lint",
     "test": "jest",
-    "fetch-cosmos-chains": "bash scripts/fetchGrazChains.sh"
+    "fetch-cosmos-chains": "bash scripts/fetchGrazChain.sh"
   },
   "dependencies": {
     "@amplitude/analytics-browser": "^2.8.1",

scripts/fetchGrazChain.sh

@@ -0,0 +1,48 @@
+#!/bin/bash
+
+
+MAX_RETRIES=5
+
+
+command_exists() {
+    command -v "$1" >/dev/null 2>&1
+}
+if ! command_exists graz; then
+    echo "graz is not installed."
+    if command_exists npm; then
+        npm install -g graz
+    else
+        echo "Error: npm is not installed. Please install npm and try again."
+        exit 1
+    fi
+fi
+
+fetch_graz_chains() {
+    local retry_count=0
+
+    while [ $retry_count -lt $MAX_RETRIES ]; do
+        echo "Attempt $((retry_count + 1)) to fetch cosmos chains..."
+
+        if graz generate -g; then
+            echo "Successfully fetched cosmos chains!"
+            return 0
+        else
+            retry_count=$((retry_count + 1))
+            if [ $retry_count -lt $MAX_RETRIES ]; then
+                echo "Fetch failed. Retrying in 5 seconds..."
+                sleep 5
+            else
+                echo "Max retries reached. Unable to fetch cosmos chains."
+            fi
+        fi
+    done
+
+    return 1
+}
+
+if fetch_graz_chains; then
+    echo "Cosmos chains have been successfully fetched and stored in $OUTPUT_DIR"
+else
+    echo "Failed to fetch cosmos chains after $MAX_RETRIES attempts."
+    exit 1
+fi