Add check for invalid bun versions (#768)

pynecone/components/graphing/plotly.py

@@ -32,6 +32,9 @@ class Plotly(PlotlyLib):
     # The height of the graph.
     height: Var[str]
 
+    # If true, the graph will resize when the window is resized.
+    use_resize_handler: Var[bool]
+
     def _get_imports(self):
         return {}
 

pynecone/constants.py

@@ -17,6 +17,11 @@ VERSION = pkg_resources.get_distribution(PACKAGE_NAME).version
 # Minimum version of Node.js required to run Pynecone.
 MIN_NODE_VERSION = "12.22.0"
 
+# Valid bun versions.
+MIN_BUN_VERSION = "0.5.5"
+MAX_BUN_VERSION = "0.5.8"
+INVALID_BUN_VERSIONS = ["0.5.6", "0.5.7"]
+
 # Files and directories used to init a new project.
 # The root directory of the pynecone library.
 ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))

pynecone/utils/prerequisites.py

@@ -41,6 +41,26 @@ def check_node_version(min_version):
         return False
 
 
+def get_bun_version() -> str:
+    """Get the version of bun.
+
+    Returns:
+        The version of bun.
+
+    Raises:
+        FileNotFoundError: If bun is not installed.
+    """
+    try:
+        # Run the bun -v command and capture the output
+        result = subprocess.run(
+            ["bun", "-v"], stdout=subprocess.PIPE, stderr=subprocess.PIPE
+        )
+        version = result.stdout.decode().strip()
+        return version
+    except Exception:
+        raise FileNotFoundError("Pynecone requires bun to be installed.") from None
+
+
 def get_package_manager() -> str:
     """Get the package manager executable.
 
@@ -192,6 +212,12 @@ def install_bun():
     Raises:
         FileNotFoundError: If the required packages are not installed.
     """
+    if get_bun_version() in constants.INVALID_BUN_VERSIONS:
+        console.print(
+            f"[red]Bun version {get_bun_version()} is not supported by Pynecone. Please downgrade to bun version {constants.MIN_BUN_VERSION} or upgrade to {constants.MAX_BUN_VERSION} or higher."
+        )
+        return
+
     # Bun is not supported on Windows.
     if platform.system() == "Windows":
         console.log("Skipping bun installation on Windows.")