context: write dirstate out explicitly after marking files as clean To detect change of a file without redundant comparison of file content, dirstate recognizes a file as certainly clean, if: (1) it is already known as "normal", (2) dirstate entry for it has valid (= not "-1") timestamp, and (3) mode, size and timestamp of it on the filesystem are as same as ones expected in dirstate This works as expected in many cases, but doesn't in the corner case that changing a file keeps mode, size and timestamp of it on the filesystem. The timetable below shows steps in one of typical such situations: ---- ----------------------------------- ---------------- timestamp of "f" ---------------- dirstate file- time action mem file system ---- ----------------------------------- ---- ----- ----- N -1 *** - make file "f" clean N - execute 'hg foobar' - instantiate 'dirstate' -1 -1 - 'dirstate.normal("f")' N -1 (e.g. via dirty check) - change "f", but keep size N N+1 - release wlock - 'dirstate.write()' N N - 'hg status' shows "f" as "clean" N N N ---- ----------------------------------- ---- ----- ----- The most important point is that 'dirstate.write()' is executed at N+1 or later. This causes writing dirstate timestamp N of "f" out successfully. If it is executed at N, 'parsers.pack_dirstate()' replaces timestamp N with "-1" before actual writing dirstate out. Occasional test failure for unexpected file status is typical example of this corner case. Batch execution with small working directory is finished in no time, and rarely satisfies condition (2) above. This issue can occur in cases below; - 'hg revert --rev REV' for revisions other than the parent - failure of 'merge.update()' before 'merge.recordupdates()' The root cause of this issue is that files are changed without flushing in-memory dirstate changes via 'repo.commit()' (even though omitting 'dirstate.normallookup()' on changed files also causes this issue). To detect changes of files correctly, this patch writes in-memory dirstate changes out explicitly after marking files as clean in 'workingctx._checklookup()', which is invoked via 'repo.status()'. After this change, timetable is changed as below: ---- ----------------------------------- ---------------- timestamp of "f" ---------------- dirstate file- time action mem file system ---- ----------------------------------- ---- ----- ----- N -1 *** - make file "f" clean N - execute 'hg foobar' - instantiate 'dirstate' -1 -1 - 'dirstate.normal("f")' N -1 (e.g. via dirty check) ----------------------------------- ---- ----- ----- - 'dirsttate.write()' -1 -1 ----------------------------------- ---- ----- ----- - change "f", but keep size N N+1 - release wlock - 'dirstate.write()' -1 -1 - 'hg status' -1 -1 N ---- ----------------------------------- ---- ----- ----- To reproduce this issue in tests certainly, this patch emulates some timing critical actions as below: - timestamp of "f" in '.hg/dirstate' is -1 at the beginning 'hg debugrebuildstate' before command invocation ensures it. - make file "f" clean at N - change "f" at N 'touch -t 200001010000' before and after command invocation changes mtime of "f" to "2000-01-01 00:00" (= N). - invoke 'dirstate.write()' via 'repo.status()' at N 'fakedirstatewritetime.py' forces 'pack_dirstate()' to use "2000-01-01 00:00" as "now", only if 'pack_dirstate()' is invoked via 'workingctx._checklookup()'. - invoke 'dirstate.write()' via releasing wlock at N+1 (or "not at N") 'pack_dirstate()' via releasing wlock uses actual timestamp at runtime as "now", and it should be different from the "2000-01-01 00:00" of "f". BTW, this patch also changes 'test-largefiles-misc.t', because adding 'dirstate.write()' makes recent dirstate changes visible to external process.

tests: add extension to emulate invoking dirstate.write at the specific time This extension fakes 'now' for 'parsers.pack_dirstate()' to emulate invoking 'dirstate.write()' at the specific time, only when 'dirstate.write()' is invoked via functions below: - 'workingctx._checklookup()' (= 'repo.status()') - 'committablectx.markcommitted()' This is useful to reproduce timing critical issues fixed in subsequent patches.

convert: handle copies when converting from Perforce (issue4744)

convert: add config for recording the source name This creates the convert.hg.sourcename config option which will embed a user defined name into each commit created by the convert. This is useful when using the convert extension to merge several repositories together and we want to record where each commit came from.

convert: support multiple specifed revs in git source This allows specifying multiple revs/branches to convert from a git repo.

convert: add support for specifying multiple revs Previously convert could only take one '--rev'. This change allows the user to specify multiple --rev entries. For instance, this could allow converting multiple branches (but not all branches) at once from git. In this first patch, we disable support for this for all sources. Future patches will enable it for select sources (like git).

monoblue: use padding instead of position for text in footer Some installations alter monoblue style and remove margins from body element (these margins have that dark gray background) to adapt hgweb instance to an already existing site design. However, the margins hid a quirk in page footer: a block of text needlessly popped out of the footer, and when margins were gone, the whole page got a vertical scroll bar because of that. Live example: https://hg.prosody.im/prosody-modules/ To remove the potential scroll bar, this block of text now uses left padding, which doesn't make it overflow the footer, but makes it achieve the otherwise same result visually.

monoblue: don't try to show repo on hgwebdir index page Index page shows a list of accessible repositories, it doesn't have a single-repo context.

convert: handle deleted files when converting from Perforce (issue4743)

bookmarks: change bookmark within a transaction For some time, bookmark can and should be moved in the transaction. This changeset migrates the 'hg bookmarks' commands to use a transaction. Tests regarding rollback and transaction hooks are impacted for obvious reasons. Some have to be slightly updated to keep testing the same things. Some can just be dropped because they do not make sense anymore.

bookmark: remove the "touch changelog" hack Any changes to bookmarks used to touch the changelog to ensure hgweb was reloaded. This was fairly hacky and stops working when bookmarks are moved as part of the transaction. As hgweb is now explicitly tracking bookmark changes, we can remove this hack (and no tests break).

convert: add config option for disabling ancestor parent checks When converting merge commits, convert checks if any of the parents are ancestors of any of the other parents. To do this, it builds an ancestor list for every commit in the repository. On large repos this can take a long time (30min+). Let's add an option for disabling this check to preserve performance. The downside of this is that it may create unnecessary parent connections when enabled (which is unfortunate, but not incorrect). To verify, I ran the convert tests with the flag enabled, and verified the graph changes were all just to add new parents that were ancestors of existing parents.

convert: add config to not convert tags In some cases we do not want to convert tags from the source repo to be tags in the target repo (for instance, in a large repository, hgtags cause scaling issues so we want to avoid them). This adds a config option to disable converting tags.

templatekw: make {rev} return wdirrev instead of None wdirrev/wdirnode identifiers are still experimental, but {node} is mapped to wdirnode. So {rev} should do the same for consistency. I'm not sure if templatekw can import scmutil. If not, we should move intrev() to node module.

changeset_printer: use node.wdirrev to calculate meaningful parentrevs Because we defined the working-directory revision is INT_MAX, it makes sense that "hg log -r 'wdir()'" displays the "parent:" field. This is the same for two revisions that are semantically contiguous but the intermediate revisions are hidden.