1 files changed, 79 insertions, 0 deletions
diff --git a/meta-zephyr-core/scripts/generate-version.py b/meta-zephyr-core/scripts/generate-version.py
new file mode 100755
index 0000000..d795a70
--- /dev/null
+++ b/meta-zephyr-core/scripts/generate-version.py
@@ -0,0 +1,79 @@
+#!/usr/bin/env python3
+
+import pathlib
+import re
+import subprocess
+import sys
+import urllib.parse
+import urllib.request
+
+# These non-standard modules must be installed on the host
+import jinja2
+import west.manifest
+
+# This script takes one argument - the Zephyr version in the form x.y.z
+version = sys.argv[1]
+if not re.match(r'\d+.\d+.\d+', version):
+    raise ValueError("Please provide a valid Zephyr version")
+
+# Obtain the West manifest and decode using west as a library
+manifest_url = f'https://raw.githubusercontent.com/zephyrproject-rtos/zephyr/v{version}/west.yml'
+with urllib.request.urlopen(manifest_url) as f:
+    source_data = f.read().decode()
+    manifest = west.manifest.Manifest(source_data=source_data,
+        import_flags=west.manifest.ImportFlag.IGNORE)
+    projects = manifest.get_projects([])
+
+# projects contains a 'manifest' project for 'self' which we don't want to use
+projects = list(filter(lambda project: project.name != 'manifest', projects))
+template_params = dict(version=version,
+                       zephyr_url='https://github.com/zephyrproject-rtos/zephyr.git',
+                       projects=projects)
+
+# Convert a revision specifier into the Git commit SHA
+def resolve_revision(revision, repo_url):
+    # If revision is a Git SHA, return it
+    if re.match(r'[a-f0-9]{40}', revision):
+        return revision
+
+    # Otherwise, resolve using git ls-remote
+    try:
+        # Prefer a deferenced tag (if annotated)
+        output = subprocess.check_output(['git', 'ls-remote', '--exit-code', repo_url, f'{revision}^{{}}'])
+        return output.split()[0].decode()
+    except subprocess.CalledProcessError:
+        # Fall back to tag name (if lightweight)
+        output = subprocess.check_output(['git', 'ls-remote', '--exit-code', repo_url, revision])
+        return output.split()[0].decode()
+
+def git_url_to_bitbake(url):
+    """
+    A template helper function which converts an URL for a Git repository into
+    a Bitbake-style URL with a 'protocol' suffix
+    """
+    parts = urllib.parse.urlparse(url)
+    original_sceme = parts.scheme
+    parts = parts._replace(scheme='git')
+    return parts.geturl() + ';protocol=' + original_sceme
+
+def bitbake_var(name):
+    """
+    Returns a string suitable for use in a Bitbake variable name
+    """
+    return name.upper().replace('-', '_')
+
+# Set up the Jinja environment
+template_dir = pathlib.Path(__file__).parent
+env = jinja2.Environment(loader=jinja2.FileSystemLoader(template_dir))
+env.filters['git_url_to_bitbake'] = git_url_to_bitbake
+env.filters['bitbake_var'] = bitbake_var
+env.filters['resolve_revision'] = resolve_revision
+template = env.get_template('zephyr-kernel-src.inc.jinja')
+
+# Output directly to the zephyr-kernel directory
+dest_path = pathlib.Path(__file__).parents[1] / 'recipes-kernel' /\
+    'zephyr-kernel' / f'zephyr-kernel-src-{version}.inc'
+
+# Generate the Bitbake include file
+with open(dest_path, 'w') as f:
+    f.write(template.render(**template_params))