Replace halo spinner with rich (#2086)

* Replace halo spinner with rich

* remove Halo dependency

* Omit halo from mypy.ini

---------

Co-authored-by: Soufiane Fariss <soufiane.fariss@um5s.net.ma>

.github/mypy/mypy.ini

@@ -1,8 +1,5 @@
 [mypy]
 
-[mypy-halo.*]
-ignore_missing_imports = True
-
 [mypy-tqdm.*]
 ignore_missing_imports = True
 

CHANGELOG.md

@@ -7,6 +7,7 @@
 
 - add function in capa/helpers to load plain and compressed JSON reports #1883 @Rohit1123
 - document Antivirus warnings and VirusTotal false positive detections #2028 @RionEV @mr-tz
+- replace Halo spinner with Rich #2086 @s-ff
 
 ### Breaking Changes
 

capa/loader.py

@@ -11,7 +11,7 @@ import datetime
 from typing import Set, Dict, List, Optional
 from pathlib import Path
 
-import halo
+from rich.console import Console
 from typing_extensions import assert_never
 
 import capa.perf
@@ -176,6 +176,10 @@ def get_extractor(
       UnsupportedArchError
       UnsupportedOSError
     """
+
+    # stderr=True is used here to redirect the spinner banner to stderr, so that users can redirect capa's output.
+    console = Console(stderr=True, quiet=disable_progress)
+
     if backend == BACKEND_CAPE:
         import capa.features.extractors.cape.extractor
 
@@ -222,7 +226,7 @@ def get_extractor(
             if os_ == OS_AUTO and not is_supported_os(input_path):
                 raise UnsupportedOSError()
 
-        with halo.Halo(text="analyzing program", spinner="simpleDots", stream=sys.stderr, enabled=not disable_progress):
+        with console.status("analyzing program...", spinner="dots"):
             bv: BinaryView = binaryninja.load(str(input_path))
             if bv is None:
                 raise RuntimeError(f"Binary Ninja cannot open file {input_path}")
@@ -247,7 +251,7 @@ def get_extractor(
             if os_ == OS_AUTO and not is_supported_os(input_path):
                 raise UnsupportedOSError()
 
-        with halo.Halo(text="analyzing program", spinner="simpleDots", stream=sys.stderr, enabled=not disable_progress):
+        with console.status("analyzing program...", spinner="dots"):
             vw = get_workspace(input_path, input_format, sigpaths)
 
             if should_save_workspace:

pyproject.toml

@@ -40,7 +40,6 @@ dependencies = [
     "wcwidth==0.2.13",
     "ida-settings==2.1.0",
     "viv-utils[flirt]==0.7.9",
-    "halo==0.0.31",
     "networkx==3.1",
     "ruamel.yaml==0.18.6",
     "vivisect==1.1.1",
@@ -50,6 +49,7 @@ dependencies = [
     "dncil==1.0.2",
     "pydantic==2.7.1",
     "protobuf==5.26.1",
+    "rich==13.4.2"
 ]
 dynamic = ["version"]