comparison mercurial/scmutil.py @ 42503:88ba0ff94605

copies: create helper for getting all copies for changeset

There are a few places where we get all the copies for a changeset (at
least the {file_copies} template and in two places in `hg log
--copies` code). These places currently call scmutil.getrenamedfn() to
get a caching "getrenamed" function. They all use it in a similar
way. We will be able to reuse more code by having a function for
getting all the copies for a changeset. This patch introduces such a
function. It uses it in the {file_copies} template to show that it
works. It relies on the existing scmutil.getrenamedfn() for caching in
the filelog-centric case.

Differential Revision: https://phab.mercurial-scm.org/D6545

42502:c929f612afac

        except error.LookupError:
            return None

    return getrenamed

def dirstatecopy(ui, repo, wctx, src, dst, dryrun=False, cwd=None):
    """Update the dirstate to reflect the intent of copying src to dst. For
    different reasons it might not end with dst being marked as copied from src.
    """
    origsrc = repo.dirstate.copied(src) or src

42503:88ba0ff94605

        except error.LookupError:
            return None

    return getrenamed

def getcopiesfn(repo, endrev=None):
    if copiesmod.usechangesetcentricalgo(repo):
        def copiesfn(ctx):
            if ctx.p2copies():
                allcopies = ctx.p1copies().copy()
                # There should be no overlap
                allcopies.update(ctx.p2copies())
                return sorted(allcopies.items())
            else:
                return sorted(ctx.p1copies().items())
    else:
        getrenamed = getrenamedfn(repo, endrev)
        def copiesfn(ctx):
            copies = []
            for fn in ctx.files():
                rename = getrenamed(fn, ctx.rev())
                if rename:
                    copies.append((fn, rename))
            return copies

    return copiesfn

def dirstatecopy(ui, repo, wctx, src, dst, dryrun=False, cwd=None):
    """Update the dirstate to reflect the intent of copying src to dst. For
    different reasons it might not end with dst being marked as copied from src.
    """
    origsrc = repo.dirstate.copied(src) or src