Mercurial > hg
changeset 31937:826e600605f6
context: add a blockdescendants function
This is symmetrical with blockancestors() and yields descendants of a filectx
with changes in the given line range. The noticeable difference is that the
algorithm does not follow renames (probably because filelog.descendants() does
not), so we are missing branches with renames.
| author | Denis Laxalde <denis.laxalde@logilab.fr> |
|---|---|
| date | Mon, 10 Apr 2017 15:11:36 +0200 |
| parents | 806f9a883b4f |
| children | 5e3b49defbff |
| files | mercurial/context.py |
| diffstat | 1 files changed, 20 insertions(+), 0 deletions(-) [+] |
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--- a/mercurial/context.py Thu Mar 09 22:40:52 2017 -0800 +++ b/mercurial/context.py Mon Apr 10 15:11:36 2017 +0200 @@ -1208,6 +1208,26 @@ if inrange: yield c, linerange2 +def blockdescendants(fctx, fromline, toline): + """Yield descendants of `fctx` with respect to the block of lines within + `fromline`-`toline` range. + """ + diffopts = patch.diffopts(fctx._repo.ui) + fl = fctx.filelog() + seen = {fctx.filerev(): (fctx, (fromline, toline))} + for i in fl.descendants([fctx.filerev()]): + c = fctx.filectx(i) + for x in fl.parentrevs(i): + try: + p, linerange2 = seen.pop(x) + except KeyError: + # nullrev or other branch + continue + inrange, linerange1 = _changesrange(c, p, linerange2, diffopts) + if inrange: + yield c, linerange1 + seen[i] = c, linerange1 + class committablectx(basectx): """A committablectx object provides common functionality for a context that wants the ability to commit, e.g. workingctx or memctx."""