Markus Zolliker
715fcf4d36
a tool the compare commits in branches Change-Id: I503941b76bb567ea4c3d33b986406a910154fda6
103 lines
2.8 KiB
Python
103 lines
2.8 KiB
Python
"""compare commits of logs in different branches
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selecting the time range is based on file 'sync_branches'
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which should be in the branch where logdif.py is running
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"""
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import sys
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from subprocess import check_output
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branches = sys.argv[1:]
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commits = {}
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log_no = {}
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log_title = {}
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cursor = {}
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since_info = []
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with open("sync_branches") as f:
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# a file containing
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# YYYY-mm-dd <branch1> <branch2>
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# for each date the branches are synced
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for line in f:
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if line.strip():
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info = line.split()
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if set(branches) & set(info[1:]) == set(branches):
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since_info.append(info[0])
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gitlog = ['git', 'log', '--oneline']
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if since_info:
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since = sorted(since_info)[-1]
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print(f'commits since {since}')
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gitlog.append(f'--since-as-filter={sorted(since_info)[-1]}')
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else:
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print(f'no info for {branches} found in file sync_branches')
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for br in branches:
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cursor[br] = 0
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output = check_output(gitlog + [br])
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log_title[br] = bytitle = {}
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log_no[br] = byno = []
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no = 0
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for line in output.decode('utf-8').split('\n'):
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if line:
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hash, title = line.split(' ', 1)
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bytitle.setdefault(title, []).append([(no, hash)])
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byno.append([hash, title])
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no += 1
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# find matches
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for br, byno in log_no.items():
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for no, line in enumerate(byno):
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commits.setdefault(line[1], {}).setdefault(br, []).append((no, line))
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ordered = {}
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for title, info in commits.items():
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# sort the info dict by value
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ordered[title] = {b: v for v, b in sorted((v, b) for b, v in info.items())}
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commits = ordered
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cnt = [0]
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def print_commit(line):
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if not line[1]:
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return # title cleared: this line is already printed
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# print and mark line as already printed
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info = commits[line[1]]
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output = []
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title = line[1]
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for br in log_no:
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infolist = info.get(br)
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if infolist:
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no, iline = infolist.pop(0)
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if not infolist:
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info.pop(br)
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output.append(f'{no:3}:{iline[0]}')
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iline[1] = '' # clear title
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else:
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output.append(' ' * 11)
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print(' '.join(output), title)
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cnt[0] += 1
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if cnt[0] % 50 == 0:
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input(f' {br0:11s} {br1:11s}')
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(br0, log0), (br1, log1) = list(log_no.items())
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no1 = 0
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for no0, line0 in enumerate(log0):
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if line0[1]: # line not yet printed
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infodict = commits[line0[1]]
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if len(infodict) > 1: # found a match
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info0 = infodict[br1]
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# loop over commits in br1 until matched no
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no1end = info0[0][0]
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if no1end > no0:
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for n in range(no0, no1end):
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line1 = log1[n]
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print_commit(line1)
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no1 = no1end
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print_commit(line0)
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