scripts: west: spdx: extract copyright info

use REUSE to extract copyright text from source files and include in

SBOM documents
Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>

doc/develop/west/zephyr-cmds.rst

@@ -136,6 +136,13 @@ Each file in the bill-of-materials is scanned, so that its hashes (SHA256 and
 SHA1) can be recorded, along with any detected licenses if an
 ``SPDX-License-Identifier`` comment appears in the file.
 
+Copyright notices are extracted using the third-party :command:`reuse` tool from the REUSE group.
+When found, these notices are added to SPDX documents as ``FileCopyrightText`` fields.
+
+.. note::
+   Copyright extraction uses heuristics that may not capture complete notice text, so
+   ``FileCopyrightText`` content is best-effort. This aligns with SPDX specification recommendations.
+
 SPDX Relationships are created to indicate dependencies between
 CMake build targets, build targets that are linked together, and
 source files that are compiled to generate the built library files.

scripts/requirements-actions.in

@@ -28,6 +28,7 @@ pytest
 python-magic-bin; sys_platform == "win32"
 python-magic; sys_platform != "win32"
 pyyaml
+reuse
 ruff==0.11.11
 setuptools>=70.2.0
 spdx-tools

scripts/requirements-actions.txt

@@ -12,6 +12,10 @@ astroid==3.3.10 \
     --hash=sha256:104fb9cb9b27ea95e847a94c003be03a9e039334a8ebca5ee27dafaf5c5711eb \
     --hash=sha256:c332157953060c6deb9caa57303ae0d20b0fbdb2e59b4a4f2a6ba49d0a7961ce
     # via pylint
+attrs==25.3.0 \
+    --hash=sha256:427318ce031701fea540783410126f03899a97ffc6f61596ad581ac2e40e3bc3 \
+    --hash=sha256:75d7cefc7fb576747b2c81b4442d4d4a1ce0900973527c011d1030fd3bf4af1b
+    # via reuse
 awscli==1.40.38 \
     --hash=sha256:3f90f2815e3b72691785d2bbd4f2c3dcbde311c55e1f5633a37cc3e514ba6fdb \
     --hash=sha256:ec9b69ff4600ef151df3336f0e7af4cf30280d27f9d8e67e09c4b386ceb1f154
@@ -20,10 +24,16 @@ beartype==0.21.0 \
     --hash=sha256:b6a1bd56c72f31b0a496a36cc55df6e2f475db166ad07fa4acc7e74f4c7f34c0 \
     --hash=sha256:f9a5078f5ce87261c2d22851d19b050b64f6a805439e8793aecf01ce660d3244
     # via spdx-tools
+binaryornot==0.4.4 \
+    --hash=sha256:359501dfc9d40632edc9fac890e19542db1a287bbcfa58175b66658392018061 \
+    --hash=sha256:b8b71173c917bddcd2c16070412e369c3ed7f0528926f70cac18a6c97fd563e4
+    # via reuse
 boolean-py==5.0 \
     --hash=sha256:60cbc4bad079753721d32649545505362c754e121570ada4658b852a3a318d95 \
     --hash=sha256:ef28a70bd43115208441b53a045d1549e2f0ec6e3d08a9d142cbc41c1938e8d9
-    # via license-expression
+    # via
+    #   license-expression
+    #   reuse
 botocore==1.38.39 \
     --hash=sha256:2305f688e9328af473a504197584112f228513e06412038d83205ce8d1456f40 \
     --hash=sha256:ee3aa03af1dabed4f3710cd64f6d9d488281eee720710bf1cf9f2b2fd30025ae
@@ -118,7 +128,9 @@ cffi==1.17.1 \
 chardet==5.2.0 \
     --hash=sha256:1b3b6ff479a8c414bc3fa2c0852995695c4a026dcd6d0633b2dd092ca39c1cf7 \
     --hash=sha256:e1cf59446890a00105fe7b7912492ea04b6e6f06d4b742b2c788469e34c82970
-    # via tox
+    # via
+    #   binaryornot
+    #   tox
 charset-normalizer==3.4.2 \
     --hash=sha256:005fa3432484527f9732ebd315da8da8001593e2cf46a3d817669f062c3d9ed4 \
     --hash=sha256:046595208aae0120559a67693ecc65dd75d46f7bf687f159127046628178dc45 \
@@ -212,7 +224,9 @@ charset-normalizer==3.4.2 \
     --hash=sha256:fb707f3e15060adf5b7ada797624a6c6e0138e2a26baa089df64c68ee98e040f \
     --hash=sha256:fcbe676a55d7445b22c10967bceaaf0ee69407fbe0ece4d032b6eb8d4565982a \
     --hash=sha256:fdb20a30fe1175ecabed17cbf7812f7b804b8a315a25f24678bcdf120a90077f
-    # via requests
+    # via
+    #   python-debian
+    #   requests
 clang-format==20.1.6 \
     --hash=sha256:0ea008a20951527d35a1e2b8febdca3c47c6f8e9a1bd174601c891e20053ef2e \
     --hash=sha256:11530ff352c64176ba4297ad398452d9fcd442b4a8bb2a804cc7915bc94b96e1 \
@@ -236,6 +250,7 @@ click==8.1.3 \
     --hash=sha256:bb4d8133cb15a609f44e8213d9b391b0809795062913b383c62be0ee95b1db48
     # via
     #   gitlint-core
+    #   reuse
     #   spdx-tools
 colorama==0.4.6 \
     --hash=sha256:08695f5cb7ed6e0531a20572697297273c47b8cae5a63ffc6d6ed5c201be6e44 \
@@ -452,6 +467,7 @@ jinja2==3.1.6 \
     # via
     #   gcovr
     #   junit2html
+    #   reuse
 jmespath==1.0.1 \
     --hash=sha256:02e2e4cc71b5bcab88332eebf907519190dd9e6e82107fa7f83b1003a6252980 \
     --hash=sha256:90261b206d6defd58fdd5e85f478bf633a2901798906be2ad389150c5c60edbe
@@ -466,7 +482,9 @@ junitparser==3.2.0 \
 license-expression==30.4.1 \
     --hash=sha256:679646bc3261a17690494a3e1cada446e5ee342dbd87dcfa4a0c24cc5dce13ee \
     --hash=sha256:9f02105f9e0fcecba6a85dfbbed7d94ea1c3a70cf23ddbfb5adf3438a6f6fce0
-    # via spdx-tools
+    # via
+    #   reuse
+    #   spdx-tools
 lxml==5.4.0 \
     --hash=sha256:00b8686694423ddae324cf614e1b9659c2edb754de617703c3d29ff568448df5 \
     --hash=sha256:073eb6dcdf1f587d9b88c8c93528b57eccda40209cf9be549d469b942b41d70b \
@@ -906,6 +924,10 @@ python-dateutil==2.9.0.post0 \
     #   botocore
     #   elasticsearch
     #   pykwalify
+python-debian==1.0.1 \
+    --hash=sha256:3ada9b83a3d671b58081782c0969cffa0102f6ce433fbbc7cf21275b8b5cc771 \
+    --hash=sha256:8f137c230c1d9279c2ac892b35915068b2aca090c9fd3da5671ff87af32af12c
+    # via reuse
 python-magic==0.4.27 ; sys_platform != 'win32' \
     --hash=sha256:c1ba14b08e4a5f5c31a302b7721239695b2f0f058d125bd5ce1ee36b9d9d3c3b \
     --hash=sha256:c212960ad306f700aa0d01e5d7a325d20548ff97eb9920dcd29513174f0294d3
@@ -1079,6 +1101,10 @@ requests==2.32.4 \
     --hash=sha256:27babd3cda2a6d50b30443204ee89830707d396671944c998b5975b031ac2b2c \
     --hash=sha256:27d0316682c8a29834d3264820024b62a36942083d52caf2f14c0591336d3422
     # via pygithub
+reuse==5.0.2 \
+    --hash=sha256:7a680f00324e87a72061677a892d8cbabfddf7adcf7a5376aeeed2d78995bbbb \
+    --hash=sha256:878016ae5dd29c10bad4606d6676c12a268c12aa9fcfea66403598e16eed085c
+    # via -r requirements-actions.in
 rsa==4.7.2 \
     --hash=sha256:78f9a9bf4e7be0c5ded4583326e7461e3a3c5aae24073648b4bdfa797d78c9d2 \
     --hash=sha256:9d689e6ca1b3038bc82bf8d23e944b6b6037bc02301a574935b2dd946e0353b9
@@ -1227,7 +1253,9 @@ tomli==2.2.1 \
 tomlkit==0.13.3 \
     --hash=sha256:430cf247ee57df2b94ee3fbe588e71d362a941ebb545dec29b53961d61add2a1 \
     --hash=sha256:c89c649d79ee40629a9fda55f8ace8c6a1b42deb912b2a8fd8d942ddadb606b0
-    # via pylint
+    # via
+    #   pylint
+    #   reuse
 tox==4.27.0 \
     --hash=sha256:2b8a7fb986b82aa2c830c0615082a490d134e0626dbc9189986da46a313c4f20 \
     --hash=sha256:b97d5ecc0c0d5755bcc5348387fef793e1bfa68eb33746412f4c60881d7f5f57

scripts/requirements-base.txt

@@ -24,6 +24,7 @@ pyserial
 requests>=2.32.0
 semver
 tqdm>=4.67.1
+reuse
 
 # for ram/rom reports
 anytree

scripts/west_commands/zspdx/scanner.py

@@ -6,6 +6,7 @@ import hashlib
 import os
 import re
 
+from reuse.project import Project
 from west import log
 
 from zspdx.licenses import LICENSES
@@ -177,6 +178,32 @@ def normalizeExpression(licsConcluded):
     return " AND ".join(revised)
 
 
+def getCopyrightInfo(filePath):
+    """
+    Scans the specified file for copyright information using REUSE tools.
+
+    Arguments:
+        - filePath: path to file to scan
+
+    Returns: list of copyright statements if found; empty list if not found
+    """
+    log.dbg(f"  - getting copyright info for {filePath}")
+
+    try:
+        project = Project(os.path.dirname(filePath))
+        infos = project.reuse_info_of(filePath)
+        copyrights = []
+
+        for info in infos:
+            if info.copyright_lines:
+                copyrights.extend(info.copyright_lines)
+
+        return copyrights
+    except Exception as e:
+        log.wrn(f"Error getting copyright info for {filePath}: {e}")
+        return []
+
+
 def scanDocument(cfg, doc):
     """
     Scan for licenses and calculate hashes for all Files and Packages
@@ -213,6 +240,9 @@ def scanDocument(cfg, doc):
                     f.concludedLicense = expression
                 f.licenseInfoInFile = splitExpression(expression)
 
+            if copyrights := getCopyrightInfo(f.abspath):
+                f.copyrightText = f"<text>\n{'\n'.join(copyrights)}\n</text>"
+
             # check if any custom license IDs should be flagged for document
             for lic in f.licenseInfoInFile:
                 checkLicenseValid(lic, doc)