largefiles: update largefiles even if rebase is aborted by conflict Before this patch, largefiles in the working directory aren't updated correctly, if rebase is aborted by conflict. This prevents users from viewing appropriate largefiles while resolving conflicts. While rebase, largefiles in the working directory are updated only at successful committing in the special code path of "lfilesrepo.commit()". To update largefiles even if rebase is aborted by conflict, this patch centralizes the logic of updating largefiles in the working directory into the "mergeupdate" wrapping "merge.update". This is a temporary way to fix with less changes. For fundamental resolution of this kind of problems in the future, largefiles in the working directory should be updated with other (normal) files simultaneously while "merge.update" execution: maybe by hooking "applyupdates". "Action list based updating" introduced by hooking "applyupdates" will also improve performance of updating, because it automatically decreases target files to be checked. Just after this patch, there are some improper things in "Case 0" code path of "lfilesrepo.commit()": - "updatelfiles" invocation is redundant for rebase - detailed comment doesn't meet to rebase behavior These will be resolved after the subsequent patch for transplant, because this code path is shared with transplant. Even though replacing "merge.update" in rebase extension by "hg.merge" can also avoid this problem, this patch chooses centralizing the logic into "mergeupdate", because: - "merge.update" invocation in rebase extension can't be directly replaced by "hg.merge", because: - rebase requires some extra arguments, which "hg.merge" doesn't take (e.g. "ancestor") - rebase doesn't require statistics information forcibly displayed in "hg.merge" - introducing "mergeupdate" can resolve also problem of some other code paths directly using "merge.update" largefiles in the working directory aren't updated regardless of the result of commands below, before this patch: - backout (for revisions other than the parent revision of the working directory without "--merge") - graft - histedit (for revisions other than the parent of the working directory When "partial" is specified, "merge.update" doesn't update dirstate entries for standins, even though standins themselves are updated. In this case, "normallookup" should be used to mark largefiles as "possibly dirty" forcibly, because applying "normal" on lfdirstate treats them as "clean" unexpectedly. This is reason why "normallookup=partial" is specified for "lfcommands.updatelfiles". This patch doesn't test "hg rebase --continue", because it doesn't work correctly if largefiles in the working directory are modified manually while resolving conflicts. This will be fixed in the next step of refactoring for largefiles. All changes of tests/*.t files other than test-largefiles-update.t in this patch come from invoking "updatelfiles" not after but before statistics output of "hg.update", "hg.clean" and "hg.merge".

largefiles: move "updatestandin" invocation to "hg.updaterepo" wrapper Code paths below expect "hg.updaterepo" (or "hg.update" using it) to execute linear merging: - "update" in commands - "postincoming" in commands, used for: - "hg pull --update" - "hg unbundle --update" - "hgsubrepo.get" in subrepo For linear merging with largefiles, standins should be updated according to (possibly dirty) largefiles before "merge.update" invocation to detect conflicts correctly. Before this patch, only the "update" command can execute linear merging correctly, because largefiles extension takes care of only it. This patch moves "updatestandin" invocation from "overrideupdate" ("hg update" wrapper) to "_hgupdaterepo" ("hg.updaterepo" wrapper) to execute linear merging in "hg.updaterepo" correctly. This is also a preparation to centralize the logic of updating largefiles in the working directory into the function wrapping "merge.update" in the subsequent patch.

largefiles: unlink standins not known to the restored dirstate at rollback Before this patch, standinds not known to the restored dirstate at rollback still exist after rollback of the parent of the working directory, and they become orphans unexpectedly. This patch unlinks standins not known to the restored dirstate. This patch saves names of standins matched against not "repo.dirstate[f] == 'a'" but "repo.dirstate[f] != 'r'" before rollback, because branch merging marks files newly added to dirstate as not "a" but "n". Such standins will also become orphan after rollback, because they are not known to the restored dirstate.