From: Stefan Herbrechtsmeier <stefan.herbrechtsme...@weidmueller.com>
Add a vendor module for cargo to resolve dependencies and populate
vendor directories from a Cargo.lock file.
Signed-off-by: Stefan Herbrechtsmeier <stefan.herbrechtsme...@weidmueller.com>
---
meta/lib/oe/vendor/cargo.py | 121 ++++++++++++++++++++++++++++++++++++
1 file changed, 121 insertions(+)
create mode 100644 meta/lib/oe/vendor/cargo.py
diff --git a/meta/lib/oe/vendor/cargo.py b/meta/lib/oe/vendor/cargo.py
new file mode 100644
index 0000000000..4d0a0034f3
--- /dev/null
+++ b/meta/lib/oe/vendor/cargo.py
@@ -0,0 +1,121 @@
+# Copyright (C) 2024-2025 Weidmueller Interface GmbH & Co. KG
+# Stefan Herbrechtsmeier <stefan.herbrechtsme...@weidmueller.com>
+#
+# SPDX-License-Identifier: MIT
+#
+import json
+import os
+import tomllib
+import bb
+import oe.vendor
+from bb.fetch2 import URI
+from . import ResolveError
+
+VENDOR_TYPE = "cargo"
+
+VENDOR_DIR = "vendor/cargo"
+
+def escape(path):
+ return re.sub(r'([A-Z])', lambda m: '!' + m.group(1).lower(), path)
+
+def determine_subdir(name, version):
+ return f"{name}-{version}"
+
+def determine_uri_path(path, name, version):
+ path = path.rstrip("/")
+ return f"{path}/api/v1/crates/{name}/{version}/download"
+
+def determine_downloadfilename(name, version):
+ filename = f"{name}-{version}.crate"
+ return oe.vendor.determine_downloadfilename(VENDOR_TYPE, filename)
+
+def extend_uri(uri, name, version, subdir, checksum_name=None,
+ checksum_value=None):
+ uri.path = determine_uri_path(uri.path, name, version)
+ params = uri.params
+ params["subdir"] = subdir
+ params["downloadfilename"] = determine_downloadfilename(name, version)
+ if checksum_name and checksum_value:
+ params[checksum_name] = checksum_value
+
+def determine_src_uri(registry, name, version, subdir):
+ uri = URI(registry)
+ extend_uri(uri, name, version, subdir)
+ return str(uri)
+
+def parse_lock_file(lock_file, function):
+ try:
+ with open(lock_file, "rb") as f:
+ crates = tomllib.load(f)
+ except Exception as e:
+ raise ResolveError(f"Invalid file: {str(e)}", lock_file)
+
+ for data in crates.get("package", []):
+ if "source" not in data:
+ continue
+
+ function(data)
+
+def resolve_src_uris(lock_file, registry, base_subdir, vendor_subdir):
+ src_uris = []
+
+ def resolve_src_uri(data):
+ name = data.get('name')
+ version = data.get('version')
+ source = data.get("source")
+
+ if source.startswith("registry"):
+ checksum_name = "sha256sum"
+ checksum_value = data.get('checksum')
+ uri = URI(source[9:])
+ if (source[9:] == "https://github.com/rust-lang/crates.io-index";):
+ uri = URI(registry)
+ params = uri.params
+ params["name"] = name
+ params["version"] = version
+ params["type"] = VENDOR_TYPE
+ subdir = os.path.join(base_subdir, vendor_subdir)
+ extend_uri(uri, name, version, subdir, checksum_name,
+ checksum_value)
+ else:
+ raise ResolveError(f"Unsupported cargo registry: {source}",
+ lock_file)
+
+ elif source.startswith("git"):
+ repository, _, revision = source.partition("#")
+ uri = URI(repository)
+ params = uri.params
+ scheme, _, protocol = uri.scheme.partition("+")
+ if protocol:
+ params["protocol"] = protocol
+ uri.scheme = scheme
+ params["nobranch"] = "1"
+ subdir = determine_subdir(name, version)
+ params["subdir"] = os.path.join(base_subdir, vendor_subdir, subdir)
+ params["rev"] = revision
+ else:
+ raise ResolveError(f"Unsupported dependency: {name}", lock_file)
+
+ src_uris.append(str(uri))
+
+ parse_lock_file(lock_file, resolve_src_uri)
+
+ return src_uris
+
+def populate_vendor(lock_file, rootdir):
+ def populate_checksum(data):
+ name = data.get('name')
+ version = data.get('version')
+ source = data.get("source")
+ chechsum = data.get('checksum')
+
+ if source.startswith("registry"):
+ subdir = determine_subdir(name, version)
+ filepath = os.path.join(rootdir, subdir, ".cargo-checksum.json")
+ with open(filepath, "w") as f:
+ json.dump({
+ "files": {},
+ "package": chechsum
+ }, f)
+
+ parse_lock_file(lock_file, populate_checksum)
--
2.39.5
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