143 lines
5.3 KiB
Python
143 lines
5.3 KiB
Python
#!/usr/bin/env python3
|
|
|
|
import re
|
|
import sys
|
|
import subprocess
|
|
import string
|
|
|
|
import click
|
|
|
|
|
|
@click.command()
|
|
@click.argument('texfile')
|
|
@click.argument('bibliography')
|
|
@click.argument('revision')
|
|
def generate_git_tex_diff(texfile, bibliography, revision):
|
|
with open(texfile) as f:
|
|
tex_lines = len(list(f))
|
|
with open(bibliography) as f:
|
|
bib_lines = len(list(f))
|
|
|
|
tex_proc = subprocess.run(['git', 'diff', f'-U{tex_lines+1}', '--word-diff', '--color=always', revision, texfile],
|
|
check=True, capture_output=True)
|
|
|
|
bib_proc = subprocess.run(['git', 'diff', f'-U{bib_lines+1}', '--word-diff', '--color=always', revision, bibliography],
|
|
check=True, capture_output=True)
|
|
ADDITION_RE_R = '\033\\[32m\\{\\+([^\033]*?)\\+\\}\033\\[m'
|
|
DELETION_RE_R = '\033\\[31m\\[-([^\033]*?)\\-]\033\\[m'
|
|
addition_re = re.compile(ADDITION_RE_R)
|
|
deletion_re = re.compile(DELETION_RE_R)
|
|
combined_re = re.compile(f'{DELETION_RE_R}{ADDITION_RE_R}')
|
|
csi_re = re.compile('\033\\[.*?m')
|
|
bibtex_entry_def_re = re.compile('@.*?{(.*?),')
|
|
|
|
bibliography_categories = '\\DeclareBibliographyCategory{diff_new_entry}\n'
|
|
bibliography_categories += '\\DeclareBibliographyCategory{diff_deleted_entry}\n'
|
|
bibliography_categories += '\\AtEveryBibitem{\\ifcategory{diff_new_entry}{\\color{diffgreen}}{\\ifcategory{diff_deleted_entry}{\\color{diffred}}{\\color{black}}}}\n'
|
|
|
|
added_entries, removed_entries = [], []
|
|
for line in bib_proc.stdout.decode().splitlines():
|
|
if (match := addition_re.fullmatch(line.strip())):
|
|
if (entry_def := bibtex_entry_def_re.fullmatch(match.group(1))):
|
|
added_entries.append(entry_def.group(1))
|
|
|
|
if (match := deletion_re.fullmatch(line.strip())):
|
|
if (entry_def := bibtex_entry_def_re.fullmatch(match.group(1))):
|
|
removed_entries.append(entry_def.group(1))
|
|
|
|
if added_entries:
|
|
bibliography_categories += '\\addtocategory{diff_new_entry}{' + ','.join(added_entries) + '}\n'
|
|
if removed_entries:
|
|
bibliography_categories += '\\addtocategory{diff_deleted_entry}{' + ','.join(removed_entries) + '}\n'
|
|
|
|
content_started = False
|
|
document_started = False
|
|
for line in tex_proc.stdout.decode().splitlines():
|
|
|
|
if not content_started:
|
|
if '@@' in line:
|
|
content_started = True
|
|
continue
|
|
|
|
line = line.rstrip()
|
|
if document_started: # diff results in preamble
|
|
|
|
debug = False #'battery' in line
|
|
if debug:
|
|
print('orig:', repr(line), file=sys.stderr)
|
|
|
|
def suppress_small_changes(match):
|
|
nonlocal debug
|
|
old, new = match.groups()
|
|
|
|
old, _, _rest = old.partition('%')
|
|
new, _, _rest = new.partition('%')
|
|
|
|
if debug:
|
|
print(f'old={repr(old)}, new={repr(new)}', file=sys.stderr)
|
|
|
|
if len(old) < 12 and len(new) < 12:
|
|
return new
|
|
|
|
if old.count(' ') < 3 and new.count(' ') < 3:
|
|
return new
|
|
|
|
if '}' in old or '{' in old or '{' in new or '}' in new:
|
|
return new
|
|
|
|
new_chars = list(new)
|
|
for char in old:
|
|
if char not in string.ascii_letters:
|
|
continue
|
|
|
|
if char not in new_chars:
|
|
return r' \color{diffred}' + old + r' \color{diffgreen}' + new + ' \color{black}'
|
|
|
|
new_chars.remove(char)
|
|
|
|
if any(char in string.ascii_letters for char in new_chars):
|
|
return r' \color{diffred}' + old + r' \color{diffgreen}' + new + ' \color{black}'
|
|
|
|
return new
|
|
|
|
line = combined_re.sub(suppress_small_changes, line)
|
|
if debug:
|
|
print('[1]', line, file=sys.stderr)
|
|
|
|
def suppress_small_changes(match, action):
|
|
change = match.group(1)
|
|
change, _, _rest = change.partition('%')
|
|
|
|
if len(change) < 12 or change.count(' ') < 3 or '}' in change or '{' in change:
|
|
if action == 'addition':
|
|
return change
|
|
else: # deletion
|
|
return ''
|
|
|
|
if action == 'addition':
|
|
return r' \color{diffgreen}' + change + r' \color{black}'
|
|
else: # deletion
|
|
return r' \color{diffred}' + change + r' \color{black}'
|
|
|
|
line = addition_re.sub(lambda match: suppress_small_changes(match, 'addition'), line)
|
|
if debug:
|
|
print('[2]', line, file=sys.stderr)
|
|
line = deletion_re.sub(lambda match: suppress_small_changes(match, 'deletion'), line)
|
|
if debug:
|
|
print('[3]', line, file=sys.stderr)
|
|
|
|
else:
|
|
if '\\begin{document}' in line:
|
|
document_started = True
|
|
print(bibliography_categories)
|
|
print('\\definecolor{diffgreen}{HTML}{1e8449}')
|
|
print('\\definecolor{diffred}{HTML}{cb4335}')
|
|
|
|
line = addition_re.sub(r'\1', line)
|
|
line = deletion_re.sub(r'', line)
|
|
|
|
line = csi_re.sub('', line)
|
|
print(line)
|
|
|
|
if __name__ == '__main__':
|
|
generate_git_tex_diff()
|