project.py: paralelize west update

The projects from manifests were updated one by one.
The parallel aproach has potential to fully utilize
CPU and network connection to speed up the update.

Signed-off-by: Robert Gałat <[email protected]>

setup.py

@@ -46,6 +46,7 @@
         'pykwalify',
         'setuptools',
         'packaging',
+        'joblib'
     ],
     python_requires='>=3.8',
     entry_points={'console_scripts': ('west = west.app.main:main',)},

src/west/app/project.py

@@ -6,6 +6,7 @@
 '''West project commands'''
 
 import argparse
+from joblib import Parallel, delayed
 from functools import partial
 import logging
 import os
@@ -1018,18 +1019,21 @@ def update_all(self):
             import_flags=ImportFlag.FORCE_PROJECTS)
 
         failed = []
-        for project in self.manifest.projects:
+
+        def project_update(project):
             if (isinstance(project, ManifestProject) or
                     project.name in self.updated):
-                continue
+                return
             try:
                 if not self.project_is_active(project):
                     self.dbg(f'{project.name}: skipping inactive project')
-                    continue
+                    return
                 self.update(project)
                 self.updated.add(project.name)
             except subprocess.CalledProcessError:
                 failed.append(project)
+
+        Parallel(n_jobs=-1)(delayed(project_update)(project) for project in self.manifest.projects)
         self._handle_failed(self.args, failed)
 
     def update_importer(self, project, path):
@@ -1090,13 +1094,15 @@ def update_some(self):
             projects = self._projects(self.args.projects)
 
         failed = []
-        for project in projects:
+        def project_update_some(project):
             if isinstance(project, ManifestProject):
-                continue
+                return
             try:
                 self.update(project)
             except subprocess.CalledProcessError:
                 failed.append(project)
+
+        Parallel(n_jobs=-1)(delayed(project_update_some)(project) for project in self.manifest.projects)
         self._handle_failed(self.args, failed)
 
     def toplevel_projects(self):