recipetool: use oe.license_finder

Delete the now redundant code, and import oe.license_finder instead.

(From OE-Core rev: 8bba98be5c87dd6749e5cc95e9553dffc23ada73)

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

3 files changed, 3 insertions, 262 deletions

diff --git a/scripts/lib/recipetool/create.py b/scripts/lib/recipetool/create.py
index 94d52d6077..3c6ef6719f 100644
--- a/scripts/lib/recipetool/create.py
+++ b/scripts/lib/recipetool/create.py
@@ -18,6 +18,7 @@ from urllib.parse import urlparse, urldefrag, urlsplit
 import hashlib
 import bb.fetch2
 logger = logging.getLogger('recipetool')
+from oe.license_finder import find_licenses
 
 tinfoil = None
 plugins = None
@@ -1040,230 +1041,6 @@ def handle_license_vars(srctree, lines_before, handled, extravalues, d):
     handled.append(('license', licvalues))
     return licvalues
 
-def get_license_md5sums(d, static_only=False, linenumbers=False):
-    import bb.utils
-    import csv
-    md5sums = {}
-    if not static_only and not linenumbers:
-        # Gather md5sums of license files in common license dir
-        commonlicdir = d.getVar('COMMON_LICENSE_DIR')
-        for fn in os.listdir(commonlicdir):
-            md5value = bb.utils.md5_file(os.path.join(commonlicdir, fn))
-            md5sums[md5value] = fn
-
-    # The following were extracted from common values in various recipes
-    # (double checking the license against the license file itself, not just
-    # the LICENSE value in the recipe)
-
-    # Read license md5sums from csv file
-    scripts_path = os.path.dirname(os.path.realpath(__file__))
-    for path in (d.getVar('BBPATH').split(':')
-                + [os.path.join(scripts_path, '..', '..')]):
-        csv_path = os.path.join(path, 'lib', 'recipetool', 'licenses.csv')
-        if os.path.isfile(csv_path):
-            with open(csv_path, newline='') as csv_file:
-                fieldnames = ['md5sum', 'license', 'beginline', 'endline', 'md5']
-                reader = csv.DictReader(csv_file, delimiter=',', fieldnames=fieldnames)
-                for row in reader:
-                    if linenumbers:
-                        md5sums[row['md5sum']] = (
-                            row['license'], row['beginline'], row['endline'], row['md5'])
-                    else:
-                        md5sums[row['md5sum']] = row['license']
-
-    return md5sums
-
-def crunch_known_licenses(d):
-    '''
-    Calculate the MD5 checksums for the crunched versions of all common
-    licenses. Also add additional known checksums.
-    '''
-    
-    crunched_md5sums = {}
-
-    # common licenses
-    crunched_md5sums['ad4e9d34a2e966dfe9837f18de03266d'] = 'GFDL-1.1-only'
-    crunched_md5sums['d014fb11a34eb67dc717fdcfc97e60ed'] = 'GFDL-1.2-only'
-    crunched_md5sums['e020ca655b06c112def28e597ab844f1'] = 'GFDL-1.3-only'
-
-    # The following two were gleaned from the "forever" npm package
-    crunched_md5sums['0a97f8e4cbaf889d6fa51f84b89a79f6'] = 'ISC'
-    # https://github.com/waffle-gl/waffle/blob/master/LICENSE.txt
-    crunched_md5sums['50fab24ce589d69af8964fdbfe414c60'] = 'BSD-2-Clause'
-    # https://github.com/spigwitmer/fakeds1963s/blob/master/LICENSE
-    crunched_md5sums['88a4355858a1433fea99fae34a44da88'] = 'GPL-2.0-only'
-    # http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
-    crunched_md5sums['063b5c3ebb5f3aa4c85a2ed18a31fbe7'] = 'GPL-2.0-only'
-    # https://github.com/FFmpeg/FFmpeg/blob/master/COPYING.LGPLv2.1
-    crunched_md5sums['7f5202f4d44ed15dcd4915f5210417d8'] = 'LGPL-2.1-only'
-    # unixODBC-2.3.4 COPYING
-    crunched_md5sums['3debde09238a8c8e1f6a847e1ec9055b'] = 'LGPL-2.1-only'
-    # https://github.com/FFmpeg/FFmpeg/blob/master/COPYING.LGPLv3
-    crunched_md5sums['f90c613c51aa35da4d79dd55fc724ceb'] = 'LGPL-3.0-only'
-    # https://raw.githubusercontent.com/eclipse/mosquitto/v1.4.14/epl-v10
-    crunched_md5sums['efe2cb9a35826992b9df68224e3c2628'] = 'EPL-1.0'
-
-    # https://raw.githubusercontent.com/jquery/esprima/3.1.3/LICENSE.BSD
-    crunched_md5sums['80fa7b56a28e8c902e6af194003220a5'] = 'BSD-2-Clause'
-    # https://raw.githubusercontent.com/npm/npm-install-checks/master/LICENSE
-    crunched_md5sums['e659f77bfd9002659e112d0d3d59b2c1'] = 'BSD-2-Clause'
-    # https://raw.githubusercontent.com/silverwind/default-gateway/4.2.0/LICENSE
-    crunched_md5sums['4c641f2d995c47f5cb08bdb4b5b6ea05'] = 'BSD-2-Clause'
-    # https://raw.githubusercontent.com/tad-lispy/node-damerau-levenshtein/v1.0.5/LICENSE
-    crunched_md5sums['2b8c039b2b9a25f0feb4410c4542d346'] = 'BSD-2-Clause'
-    # https://raw.githubusercontent.com/terser/terser/v3.17.0/LICENSE
-    crunched_md5sums['8bd23871802951c9ad63855151204c2c'] = 'BSD-2-Clause'
-    # https://raw.githubusercontent.com/alexei/sprintf.js/1.0.3/LICENSE
-    crunched_md5sums['008c22318c8ea65928bf730ddd0273e3'] = 'BSD-3-Clause'
-    # https://raw.githubusercontent.com/Caligatio/jsSHA/v3.2.0/LICENSE
-    crunched_md5sums['0e46634a01bfef056892949acaea85b1'] = 'BSD-3-Clause'
-    # https://raw.githubusercontent.com/d3/d3-path/v1.0.9/LICENSE
-    crunched_md5sums['b5f72aef53d3b2b432702c30b0215666'] = 'BSD-3-Clause'
-    # https://raw.githubusercontent.com/feross/ieee754/v1.1.13/LICENSE
-    crunched_md5sums['a39327c997c20da0937955192d86232d'] = 'BSD-3-Clause'
-    # https://raw.githubusercontent.com/joyent/node-extsprintf/v1.3.0/LICENSE
-    crunched_md5sums['721f23a96ff4161ca3a5f071bbe18108'] = 'MIT'
-    # https://raw.githubusercontent.com/pvorb/clone/v0.2.0/LICENSE
-    crunched_md5sums['b376d29a53c9573006b9970709231431'] = 'MIT'
-    # https://raw.githubusercontent.com/andris9/encoding/v0.1.12/LICENSE
-    crunched_md5sums['85d8a977ee9d7c5ab4ac03c9b95431c4'] = 'MIT-0'
-    # https://raw.githubusercontent.com/faye/websocket-driver-node/0.7.3/LICENSE.md
-    crunched_md5sums['b66384e7137e41a9b1904ef4d39703b6'] = 'Apache-2.0'
-    # https://raw.githubusercontent.com/less/less.js/v4.1.1/LICENSE
-    crunched_md5sums['b27575459e02221ccef97ec0bfd457ae'] = 'Apache-2.0'
-    # https://raw.githubusercontent.com/microsoft/TypeScript/v3.5.3/LICENSE.txt
-    crunched_md5sums['a54a1a6a39e7f9dbb4a23a42f5c7fd1c'] = 'Apache-2.0'
-    # https://raw.githubusercontent.com/request/request/v2.87.0/LICENSE
-    crunched_md5sums['1034431802e57486b393d00c5d262b8a'] = 'Apache-2.0'
-    # https://raw.githubusercontent.com/dchest/tweetnacl-js/v0.14.5/LICENSE
-    crunched_md5sums['75605e6bdd564791ab698fca65c94a4f'] = 'Unlicense'
-    # https://raw.githubusercontent.com/stackgl/gl-mat3/v2.0.0/LICENSE.md
-    crunched_md5sums['75512892d6f59dddb6d1c7e191957e9c'] = 'Zlib'
-
-    commonlicdir = d.getVar('COMMON_LICENSE_DIR')
-    for fn in sorted(os.listdir(commonlicdir)):
-        md5value, lictext = crunch_license(os.path.join(commonlicdir, fn))
-        if md5value not in crunched_md5sums:
-            crunched_md5sums[md5value] = fn
-        elif fn != crunched_md5sums[md5value]:
-            bb.debug(2, "crunched_md5sums['%s'] is already set to '%s' rather than '%s'" % (md5value, crunched_md5sums[md5value], fn))
-        else:
-            bb.debug(2, "crunched_md5sums['%s'] is already set to '%s'" % (md5value, crunched_md5sums[md5value]))
-
-    return crunched_md5sums
-
-def crunch_license(licfile):
-    '''
-    Remove non-material text from a license file and then calculate its
-    md5sum. This works well for licenses that contain a copyright statement,
-    but is also a useful way to handle people's insistence upon reformatting
-    the license text slightly (with no material difference to the text of the
-    license).
-    '''
-
-    import oe.utils
-
-    # Note: these are carefully constructed!
-    license_title_re = re.compile(r'^#*\(? *(This is )?([Tt]he )?.{0,15} ?[Ll]icen[sc]e( \(.{1,10}\))?\)?[:\.]? ?#*$')
-    license_statement_re = re.compile(r'^((This (project|software)|.{1,10}) is( free software)? (released|licen[sc]ed)|(Released|Licen[cs]ed)) under the .{1,10} [Ll]icen[sc]e:?$')
-    copyright_re = re.compile(r'^ *[#\*]* *(Modified work |MIT LICENSED )?Copyright ?(\([cC]\))? .*$')
-    disclaimer_re = re.compile(r'^ *\*? ?All [Rr]ights [Rr]eserved\.$')
-    email_re = re.compile(r'^.*<[\w\.-]*@[\w\.\-]*>$')
-    header_re = re.compile(r'^(\/\**!?)? ?[\-=\*]* ?(\*\/)?$')
-    tag_re = re.compile(r'^ *@?\(?([Ll]icense|MIT)\)?$')
-    url_re = re.compile(r'^ *[#\*]* *https?:\/\/[\w\.\/\-]+$')
-
-    lictext = []
-    with open(licfile, 'r', errors='surrogateescape') as f:
-        for line in f:
-            # Drop opening statements
-            if copyright_re.match(line):
-                continue
-            elif disclaimer_re.match(line):
-                continue
-            elif email_re.match(line):
-                continue
-            elif header_re.match(line):
-                continue
-            elif tag_re.match(line):
-                continue
-            elif url_re.match(line):
-                continue
-            elif license_title_re.match(line):
-                continue
-            elif license_statement_re.match(line):
-                continue
-            # Strip comment symbols
-            line = line.replace('*', '') \
-                       .replace('#', '')
-            # Unify spelling
-            line = line.replace('sub-license', 'sublicense')
-            # Squash spaces
-            line = oe.utils.squashspaces(line.strip())
-            # Replace smart quotes, double quotes and backticks with single quotes
-            line = line.replace(u"\u2018", "'").replace(u"\u2019", "'").replace(u"\u201c","'").replace(u"\u201d", "'").replace('"', '\'').replace('`', '\'')
-            # Unify brackets
-            line = line.replace("{", "[").replace("}", "]")
-            if line:
-                lictext.append(line)
-
-    m = hashlib.md5()
-    try:
-        m.update(' '.join(lictext).encode('utf-8'))
-        md5val = m.hexdigest()
-    except UnicodeEncodeError:
-        md5val = None
-        lictext = ''
-    return md5val, lictext
-
-def find_license_files(srctree):
-    licspecs = ['*LICEN[CS]E*', 'COPYING*', '*[Ll]icense*', 'LEGAL*', '[Ll]egal*', '*GPL*', 'README.lic*', 'COPYRIGHT*', '[Cc]opyright*', 'e[dp]l-v10']
-    skip_extensions = (".html", ".js", ".json", ".svg", ".ts", ".go")
-    licfiles = []
-    for root, dirs, files in os.walk(srctree):
-        for fn in files:
-            if fn.endswith(skip_extensions):
-                continue
-            for spec in licspecs:
-                if fnmatch.fnmatch(fn, spec):
-                    fullpath = os.path.join(root, fn)
-                    if not fullpath in licfiles:
-                        licfiles.append(fullpath)
-
-    return licfiles
-
-def match_licenses(licfiles, srctree, d):
-    import bb
-    md5sums = get_license_md5sums(d)
-
-    crunched_md5sums = crunch_known_licenses(d)
-
-    licenses = []
-    for licfile in sorted(licfiles):
-        resolved_licfile = d.expand(licfile)
-        md5value = bb.utils.md5_file(resolved_licfile)
-        license = md5sums.get(md5value, None)
-        if not license:
-            crunched_md5, lictext = crunch_license(resolved_licfile)
-            license = crunched_md5sums.get(crunched_md5, None)
-            if lictext and not license:
-                license = 'Unknown'
-                logger.info("Please add the following line for '%s' to a 'lib/recipetool/licenses.csv' " \
-                    "and replace `Unknown` with the license:\n" \
-                    "%s,Unknown" % (os.path.relpath(licfile, srctree + "/.."), md5value))
-        if license:
-            licenses.append((license, os.path.relpath(licfile, srctree), md5value))
-
-    return licenses
-
-def find_licenses(srctree, d):
-    licfiles = find_license_files(srctree)
-    licenses = match_licenses(licfiles, srctree, d)
-
-    # FIXME should we grab at least one source file with a license header and add that too?
-
-    return licenses
-
 def split_pkg_licenses(licvalues, packages, outlines, fallback_licenses=None, pn='${PN}'):
     """
     Given a list of (license, path, md5sum) as returned by match_licenses(),
diff --git a/scripts/lib/recipetool/create_npm.py b/scripts/lib/recipetool/create_npm.py
index 3363a0e7ee..8c4cdd5234 100644
--- a/scripts/lib/recipetool/create_npm.py
+++ b/scripts/lib/recipetool/create_npm.py
@@ -15,8 +15,9 @@ import bb
 from bb.fetch2.npm import NpmEnvironment
 from bb.fetch2.npm import npm_package
 from bb.fetch2.npmsw import foreach_dependencies
+from oe.license_finder import match_licenses, find_license_files
 from recipetool.create import RecipeHandler
-from recipetool.create import match_licenses, find_license_files, generate_common_licenses_chksums
+from recipetool.create import generate_common_licenses_chksums
 from recipetool.create import split_pkg_licenses
 logger = logging.getLogger('recipetool')
 
diff --git a/scripts/lib/recipetool/licenses.csv b/scripts/lib/recipetool/licenses.csv
deleted file mode 100644
index 80851111b3..0000000000
--- a/scripts/lib/recipetool/licenses.csv
+++ /dev/null
@@ -1,37 +0,0 @@
-0636e73ff0215e8d672dc4c32c317bb3,GPL-2.0-only
-12f884d2ae1ff87c09e5b7ccc2c4ca7e,GPL-2.0-only
-18810669f13b87348459e611d31ab760,GPL-2.0-only
-252890d9eee26aab7b432e8b8a616475,LGPL-2.0-only
-2d5025d4aa3495befef8f17206a5b0a1,LGPL-2.1-only
-3214f080875748938ba060314b4f727d,LGPL-2.0-only
-385c55653886acac3821999a3ccd17b3,Artistic-1.0 | GPL-2.0-only
-393a5ca445f6965873eca0259a17f833,GPL-2.0-only
-3b83ef96387f14655fc854ddc3c6bd57,Apache-2.0
-3bf50002aefd002f49e7bb854063f7e7,LGPL-2.0-only
-4325afd396febcb659c36b49533135d4,GPL-2.0-only
-4fbd65380cdd255951079008b364516c,LGPL-2.1-only
-54c7042be62e169199200bc6477f04d1,BSD-3-Clause
-55ca817ccb7d5b5b66355690e9abc605,LGPL-2.0-only
-59530bdf33659b29e73d4adb9f9f6552,GPL-2.0-only
-5f30f0716dfdd0d91eb439ebec522ec2,LGPL-2.0-only
-6a6a8e020838b23406c81b19c1d46df6,LGPL-3.0-only
-751419260aa954499f7abaabaa882bbe,GPL-2.0-only
-7fbc338309ac38fefcd64b04bb903e34,LGPL-2.1-only
-8ca43cbc842c2336e835926c2166c28b,GPL-2.0-only
-94d55d512a9ba36caa9b7df079bae19f,GPL-2.0-only
-9ac2e7cff1ddaf48b6eab6028f23ef88,GPL-2.0-only
-9f604d8a4f8e74f4f5140845a21b6674,LGPL-2.0-only
-a6f89e2100d9b6cdffcea4f398e37343,LGPL-2.1-only
-b234ee4d69f5fce4486a80fdaf4a4263,GPL-2.0-only
-bbb461211a33b134d42ed5ee802b37ff,LGPL-2.1-only
-bfe1f75d606912a4111c90743d6c7325,MPL-1.1-only
-c93c0550bd3173f4504b2cbd8991e50b,GPL-2.0-only
-d32239bcb673463ab874e80d47fae504,GPL-3.0-only
-d7810fab7487fb0aad327b76f1be7cd7,GPL-2.0-only
-d8045f3b8f929c1cb29a1e3fd737b499,LGPL-2.1-only
-db979804f025cf55aabec7129cb671ed,LGPL-2.0-only
-eb723b61539feef013de476e68b5c50a,GPL-2.0-only
-ebb5c50ab7cab4baeffba14977030c07,GPL-2.0-only
-f27defe1e96c2e1ecd4e0c9be8967949,GPL-3.0-only
-fad9b3332be894bab9bc501572864b29,LGPL-2.1-only
-fbc093901857fcd118f065f900982c24,LGPL-2.1-only