hgwebdir_wsgi: update script and expand help I've updated the script to reflect changes in Mercurial and to include a much more through installation guide with configuration examples and details on how to configure IIS. I've used the script to set up a working server from scratch.

bundlerepo: properly handle hidden linkrev in filelog (issue4945) The bundlerepository have to do some special magic to handle linkrev of the bundlerepo filerev. That logic was done from a repoview and obsolescence marker affecting bundled changeset could lead to a crash. We now ensure we operate on unfiltered repository.

rebase: adds storing collapse message (issue4792) Before this patch collapse message wasn't stored so when you ran into the merge conflict while rebasing, running rebase --continue didn't remember the message and always opened editor to fill commit message. This patch adds saving collapse message in .hg/last-message.txt and restoring it later when needed.

test-automv: fix inline config settings for 5ec1ce8fdf0a

automv: use 95 as the default similarity threshold The motivation for the change from 100 to 95 is included in a comment. * Updated the tests to include a change to a moved file that still should be caught as a move. * Use ui.configint() to non-integer configuration entries more gracefully. Also complain if a similarity outside of the acceptable range is set.

bookmarks: add 'hg push -B .' for pushing the active bookmark (issue4917)

worker: change partition strategy to every Nth element The only consumer of the worker pool code today is `hg update`. Previously, the algorithm to partition work to each worker process preserved input list ordering. We'd take the first N elements, then the next N elements, etc. Measurements on mozilla-central demonstrate this isn't an optimal partitioning strategy. I added debug code to print when workers were exiting. When performing a working copy update on a previously empty working copy of mozilla-central, I noticed that process lifetimes were all over the map. One worker would complete after 7s. Many would complete after 12s. And another worker would often take >16s. This behavior occurred for many worker process counts and was more pronounced on some than others. What I suspect is happening is some workers end up with lots of small files and others with large files. This is because the update code passes in actions according to sorted filenames. And, directories under tend to accumulate similar files. For example, test directories often consist of many small test files and media directories contain binary (often larger) media files. This patch changes the partitioning algorithm to select every Nth element from the input list. Each worker thus has a similar composition of files to operate on. The result of this change is that worker processes now all tend to exit around the same time. The possibility of a long pole due to being unlucky and receiving all the large files has been mitigated. Overall execution time seems to drop, but not by a statistically significant amount on mozilla-central. However, repositories with directories containing many large files will likely show a drop. There shouldn't be any regressions due to partial manifest decoding because the update code already iterates the manifest to determine what files to operate on, so the manifest should already be decoded.

run-tests: allow run-tests.py to run tests outside current directory When reloading tests, run-tests.py was assuming that it could look up the test by the basename, which only works if you are running tests which are in the current directory. This patch changes that lookup to use the full path. This is all that was needed, and does not appear to cause any problems for any of the existing testing work flows based on running the suggested commands at the top of run-tests.py. Motivation: In order to test Mercurial with Hypothesis (according to https://www.mercurial-scm.org/wiki/HypothesisPlan) it is useful to be able to generate temporary test files and execute them. Generating temporary files in the tests/ directory leads to a lot of suboptimal clutter.

histedit: unifying the way replacements are computed for abort and success This is a part of a bigger refactoring effort with the ultimate goal of better understanding of how histedit works and fixing issue4800.

templater: factor out type conversion of revset() result This makes it clear why we have to do repo[int(x)].

templater: evaluate each item of revset() as integer revision Because templater.revset() returns a list of strings, repo["-1"] was mapped to the tipmost revision. Ideally, we should make revset() return a list of integer revisions, but it turned out not simple. If revset() is a list of integers, "{ifcontains(rev, revset(), ...)}" would fail because "ifcontains" casts "rev" to a string. So this patch just converts a string back to an integer revision.

demandimport: blacklist sqlalchemy.events as it has side effects (issue5085) Importing sqlalchemy.events cannot be delayed as it registers classes to their event mechanism. It worked fine before 4f1144c3c72b, since they use new-style imports. But now we have to blacklist it because our demandimport can handle new-style imports. This patch series isn't intended for stable as we don't guarantee API compatibility with 3rd-party extensions. They can temporarily disable the demand importer to work around the issue.

demandimport: enforce ignore list while processing modules in fromlist If a module is loaded as "from . import x" form, there has been no way to disable demand loading for that module because name is ''. This patch makes it possible to prevent demand loading by '<package-name>.x'. We don't use _hgextimport(_origimport) here since attr is known to be a sub-module name. Adding hgext_ to attr wouldn't make sense.

phases: use constants for phase values Magic numbers hinder readability.

test-paths: fix up json output to match $TESTTMP on Windows Without this, the paths were in the form "C:\\Users\\Matt\\AppData...". The test runner wouldn't collapse it down to $TESTTMP, which uses single backslashes.

test-obsolete: conditionalize a test dependent on chmod

progress: display progress bar when HGPLAINEXCEPT contains "progress" This patch changes "progress.shouldprint()" so a feature name is provided to "ui.plain()" to determine if there is an exception specificed in HGPLAINEXCEPT for the progress extension. This will allow user-facing scripts to provide progress output while HGPLAIN is enabled.

run-tests: stop allocating HGPORT3+HGPORT4 The only consumer was test-treemanifest.t, which has been fixed. In general, you should be able to use killdaemons.py to recycle ports instead of going over 3 ports (HGPORT, HGPORT1, HGPORT2). In the future, if you want to add a port, be sure to change portneeded in _getport.

run-tests: refactor port allocation into functions Adding a port reservation was too hard and someone did it wrong. By refactoring, such reservations can be managed more safely. This also adds documentation so that the next person who tries is more likely to update all the places correctly. Note that in this commit the reservation and consumers do not match, that will be fixed in the next commit.

tests: put test-treemanifest.t on a port diet test-treemanifest.t had introduced HGPORT3 and HGPORT4, which were improperly added to run-tests.py. It also was not using HGPORT1. This recycles HGPORT, and shifts everything into HGPORT1 + HGPORT2.

chg: pass sensitive command line flags to server We are going to make chgserver load repo config, remember what it is, and load repo config again to detect config change. This is the first step that passes config, repo, cwd options to server. Traceback is passed as well to cover errors before hitting chgserver.runcommand.

chg: use mallocx and reallocx in hgclient This patch simplifies the code a bit, and reduces the binary size a little.

chg: add utility functions mallocx, reallocx They are like malloc and realloc but will abort the program on error. A lot of places use {m,re}alloc and check their results. This patch can simplify them.

localrepo: move new repo requirements into standalone function (API) This patch extracts the code for determining requirements for a new repo into a standalone function. By doing so, future code that will perform an in-place repository upgrade (e.g. to generaldelta) can examine the set of proposed new requirements and possibly take additional actions (such as adding dotencode or fncache) when performing the upgrade. This patch is marked as API because _baserequirements (which was added in b090601a80d1 so extensions could override it) has been removed and will presumably impact whatever extension it was added for. Consumers should be able to monkeypatch the new function to achieve the same functionality. The "create" argument has been dropped because the function is only called in one location and "create" is always true in that case. While it makes logical sense for this code to be a method so extensions can implement a custom repo class / method to override it, this won't actually work. This is because requirements determination occurs during localrepository.__init__ and this is before the "reposetup" "callback" is fired. So, the only way for extensions to customize requirements would be to overwrite localrepo.localrepository or to monkeypatch a function on a module during extsetup(). Since we try to keep localrepository small, we use a standalone function. There is probably room to offer extensions a "hook" point to alter repository creation. But that is scope bloat.

localrepo: isolate requirements determination from side effects In preparation for moving requirements determination to its own function.

localrepo: use local variable for requirements assignment A future patch will refactor requirements determination into a standalone function. To prepare for this, refactor the requirements code to assign to a local variable instead of to self.requirements.

destutil: ensure we offer 'hg update' hint when not at head in all cases In the merge case, we abort if the working copy is not at head, offering to run 'hg update' in the hint instead. In the rebase case, we do not abort in that case. Yet if no rebase destination are found, it still make sense to hint the user about running 'hg update'. So we re-introduce a conditional using this branch in the 'onheadcheck == False' case. This will get used on rebase use this function.

chg: forward umask from client to server This is necessary to make chg test pass on test-inherit-mode.t.

chgserver: add setumask method Before this patch, the server won't inherit umask from the client, which will fail test-inherit-mode.t. This patch provides a way for the client to change umask of the server, similar to chdir and setenv.

chgserver: use _readlist and _readstr Use _readlist and _readstr to make the code shorter.

commandserver: use _readlist Use _readlist introduced in previous commit to make the code shorter.

commandserver: add _readstr and _readlist Reading a string or a list are common operations for commandserver and chgserver. This patch adds _readstr and _readlist to avoid duplication.