VPP: T1797: Added build scripts for VPP

1 files changed, 104 insertions, 0 deletions

diff --git a/packages/vpp/build.py b/packages/vpp/build.py
new file mode 100755
index 00000000..d1dd54b1
--- /dev/null
+++ b/packages/vpp/build.py
@@ -0,0 +1,104 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2023 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from argparse import ArgumentParser
+from pathlib import Path
+from subprocess import run
+from sys import exit
+from json import load as json_load
+
+
+def check_args(args) -> bool:
+    """Check command arguments
+
+    Args:
+        args (Namespace): Namespace with arguments
+
+    Returns:
+        bool: check result
+    """
+    sources_dir = Path(f'../{args.package}')
+    if not sources_dir.exists():
+        print(f'Sourced directory {sources_dir.as_posix()} does not exist')
+        return False
+    return True
+
+
+# apply patches
+def apply_patches(package_name: str) -> bool:
+    """Apply patches to sources directory
+
+    Args:
+        package_name (str): package name (the same as sources directory)
+    """
+    patches_dir = Path(f'../patches/{package_name}')
+    if patches_dir.exists():
+        for patch_file in patches_dir.iterdir():
+            patch_cmd: list[str] = [
+                'git', '-c', 'user.email=support@vyos.io', '-c',
+                'user.name=vyos', 'am',
+                patch_file.as_posix()
+            ]
+            print(f'Applying patch: {patch_file.name}')
+            if run(patch_cmd).returncode != 0:
+                return False
+    return True
+
+
+def build_package(package_name: str) -> bool:
+    """Build a package using commands from external file
+
+    Args:
+        package_name (str): package name
+
+    Returns:
+        bool: build status
+    """
+    build_config_path: str = f'../build_{package_name}.json'
+    with open(build_config_path, 'r') as openfile:
+        try:
+            build_params = json_load(openfile)
+        except Exception as err:
+            print(f'Error parsing config file {build_config_path}: {err}')
+            return False
+
+    for cmd in build_params.get('build_commands', []):
+        print(f'Building: {cmd}')
+        if run(cmd).returncode != 0:
+            return False
+
+    return True
+
+
+# build a package
+if __name__ == '__main__':
+    # prepare argument parser
+    arg_parser = ArgumentParser()
+    arg_parser.add_argument('--package',
+                            required=True,
+                            help='Package name to build')
+    args = arg_parser.parse_args()
+
+    if not check_args(args):
+        exit(1)
+
+    if not apply_patches(args.package):
+        exit(1)
+
+    if not build_package(args.package):
+        exit(1)
+
+    exit()