1 files changed, 83 insertions, 0 deletions
diff --git a/compare_mandata.py b/compare_mandata.py
new file mode 100644
index 0000000..08d4c6b
--- /dev/null
+++ b/compare_mandata.py
@@ -0,0 +1,83 @@
+'''Check whether the manpage extensions and directories list hardcoded in brp-compress
+are the same as the lists stored in pyproject_save_files.py.
+There is an open issue for RPM to provide them both as macros:
+https://github.com/rpm-software-management/rpm/issues/1865
+Once that happens, this script can be removed.
+'''
+
+import argparse
+import re
+import sys
+
+from pathlib import PosixPath
+
+from pyproject_buildrequires import print_err
+from pyproject_save_files import prepend_mandirs, MANPAGE_EXTENSIONS
+
+
+
+def read_brp_compress(filename):
+
+    contents = filename.read_text()
+    # To avoid duplicity of the manpage extensions which are listed a few times
+    # in the source file, they are stored in set and then retyped to a sorted list
+    manpage_exts = sorted(
+        set(re.findall(r'\(?(\w+)\\+\)?\$?', contents))
+    )
+
+    # Get rid of ${PREFIX} when extracting the manpage directories
+    mandirs = [
+        entry.replace('.${PREFIX}', '/PREFIX')
+        for entry in contents.split()
+        if entry.startswith('.${PREFIX}')
+    ]
+
+    return manpage_exts, sorted(mandirs)
+
+
+def compare_mandirs(brp_compress_mandirs):
+    '''
+    Check whether each of brp-compress mandirs entry is present in the list
+    stored in pyproject_save_files.py
+    '''
+
+    pyp_save_files_mandirs = sorted(prepend_mandirs(prefix='/PREFIX'))
+    if brp_compress_mandirs == pyp_save_files_mandirs:
+        return True
+    else:
+        print_err('Mandir lists don\'t match, update the list in pyproject_save_files.py')
+        print_err('brp-compress list:', brp_compress_mandirs)
+        print_err('pyproject_save_files list:', pyp_save_files_mandirs)
+        return False
+
+
+def compare_manpage_extensions(brp_compress_manpage_exts):
+    '''
+    Check whether each of brp-compress manpage extension is present in the list
+    stored in pyproject_save_files.py
+    '''
+
+    if brp_compress_manpage_exts == sorted(MANPAGE_EXTENSIONS):
+        return True
+    else:
+        print_err('Manpage extension lists don\'t match, update the list in pyproject_save_files.py')
+        print_err('brp-compress list:', brp_compress_manpage_exts)
+        print_err('pyproject_save_files list:', sorted(MANPAGE_EXTENSIONS))
+        return False
+
+
+def main(args):
+    src_manpage_exts, src_mandirs = read_brp_compress(args.filename)
+    extension_check_successful = compare_manpage_extensions(src_manpage_exts)
+    mandir_check_successful = compare_mandirs(src_mandirs)
+    if extension_check_successful and mandir_check_successful:
+        sys.exit(0)
+    else:
+        sys.exit(1)
+
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser()
+    parser.add_argument('-f', '--filename', type=PosixPath, required=True,
+                        help='Provide location of brp-compress file')
+    main(parser.parse_args())