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comparison mercurial/commands.py @ 27469:8914296e74a2

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commands: use revlog._deltachain in debugdeltachain We have a nice API now. Use it. This does mean we introduce an extra index lookup for each revision. Considering this is a debug command, the overhead should be acceptable. We could add the chain size to revlog._deltachain(). However, that feels like avoidable overhead.
author Gregory Szorc <gregory.szorc@gmail.com>
date Sun, 20 Dec 2015 19:02:02 -0800
parents 5df74b2f296d
children fe79f86099ae
comparison
equal deleted inserted replaced
27468:93ac15f03331 27469:8914296e74a2
2540 r = cmdutil.openrevlog(repo, 'debugdeltachain', file_, opts) 2540 r = cmdutil.openrevlog(repo, 'debugdeltachain', file_, opts)
2541 index = r.index 2541 index = r.index
2542 generaldelta = r.version & revlog.REVLOGGENERALDELTA 2542 generaldelta = r.version & revlog.REVLOGGENERALDELTA
2543 2543
2544 def revinfo(rev): 2544 def revinfo(rev):
2545 iterrev = rev 2545 e = index[rev]
2546 e = index[iterrev]
2547 chain = []
2548 compsize = e[1] 2546 compsize = e[1]
2549 uncompsize = e[2] 2547 uncompsize = e[2]
2550 chainsize = 0 2548 chainsize = 0
2551 2549
2552 if generaldelta: 2550 if generaldelta:
2564 if e[3] == rev: 2562 if e[3] == rev:
2565 deltatype = 'base' 2563 deltatype = 'base'
2566 else: 2564 else:
2567 deltatype = 'prev' 2565 deltatype = 'prev'
2568 2566
2569 while iterrev != e[3]: 2567 chain = r._deltachain(rev)[0]
2570 chain.append(iterrev) 2568 for iterrev in chain:
2569 e = index[iterrev]
2571 chainsize += e[1] 2570 chainsize += e[1]
2572 if generaldelta: 2571
2573 iterrev = e[3]
2574 else:
2575 iterrev -= 1
2576 e = index[iterrev]
2577 else:
2578 chainsize += e[1]
2579 chain.append(iterrev)
2580
2581 chain.reverse()
2582 return compsize, uncompsize, deltatype, chain, chainsize 2572 return compsize, uncompsize, deltatype, chain, chainsize
2583 2573
2584 fm = ui.formatter('debugdeltachain', opts) 2574 fm = ui.formatter('debugdeltachain', opts)
2585 2575
2586 fm.plain(' rev chain# chainlen prev delta ' 2576 fm.plain(' rev chain# chainlen prev delta '