hghave: introduce a test (unused) for cvs >= 1.12

discovery: drop the visibleheads function It has no users left. (Using filtering explicitly is easier.)

clfilter: remove the last usage of `visibleheads` We can just inline the filtering now that all server code uses changelog filtering directly.

discovery: drop the visiblebranchmap function

clfilter: drop extra filtering in wireprotocol The repository used by wireprotocol is already filtered. We no longer need to call special functions.

clfilter: filter "unserved" on all wireprotocol command calls This ensures that unserved changesets are not exposed through the wire protocol.

clfilter: drop extra filtering in localpeer The repository used by localpeer is already filtered. We no longer need to call a special function.

clfilter: make localpeer use a repo with "unserved" filter This changeset installs a broad filter on most repos used for serving. This removes the need to use the `visiblehead`/`visiblebranchmap` functions, and ensures that changesets we should not serve are in fact never served. We do not use filtering on hgweb yet, as there is still a number of issues to solve there.

performance: speedup computation of extinct revisions In their current state, revset calls can be very costly, as we test predicates on the entire repository. This change drops revset calls in favor of direct testing of the phase of changesets. Performance test on my Mercurial checkout - 19857 total changesets, - 1584 obsolete changesets, - 13310 obsolescence markers. Before: ! extinct ! wall 0.015124 After: ! extinct ! wall 0.009424 Performance test on a Mozilla central checkout: - 117293 total changesets, - 1 obsolete changeset, - 1 obsolescence marker. Before: ! extinct ! wall 0.032844 After: ! extinct ! wall 0.000066

performance: speedup computation of suspended revisions In their current state, revset calls can be very costly, as we test predicates on the entire repository. This change drops a revset call in favor of direct testing of the phase of changesets. Performance test on my Mercurial checkout - 19857 total changesets, - 1584 obsolete changesets, - 13310 obsolescence markers. Before: ! suspended ! wall 0.014319 After: ! suspended ! wall 0.009559 Performance test on a Mozilla central checkout: - 117293 total changesets, - 1 obsolete changeset, - 1 obsolescence marker. Before: ! suspended ! wall 0.033373 After: ! suspended ! wall 0.000053

performance: speedup computation of unstable revisions In their current state, revset calls can be very costly, as we test predicates on the entire repository. This change drops revset call in favor of direct testing of the phase of changesets. Performance test on my Mercurial checkout - 19857 total changesets, - 1584 obsolete changesets, - 13310 obsolescence markers. Before: ! unstable ! wall 0.017366 After this changes: ! unstable ! wall 0.008093 Performance test on a Mozilla central checkout: - 117293 total changesets, - 1 obsolete changeset, - 1 obsolescence marker. Before: ! unstable ! wall 0.045190 After: ! unstable ! wall 0.000032

performance: speedup computation of mutable revisions In their current state, revset calls can be very costly, as we test predicates on the entire repository. The "mutable" filter is used during branch cache loading operation. We need to make it fast. This change drops revset calls in favor of direct testing of the phase of a changeset. Performance test on my Mercurial checkout - 19857 total changesets, - 1646 mutable revision Before: ! mutable ! wall 0.032405 After: ! mutable ! wall 0.001469 Performance test on a Mozilla central checkout: - 117293 total changesets, - 1 mutable changeset, Before: ! mutable ! wall 0.188636 After: ! mutable ! wall 0.000022

performance: speedup computation of unserved revisions In their current state, revset calls can be very costly, as we test predicates on the entire repository. The "unserved" filter is used in multiple applications, and in particular in some branch cache loading operations. We need to make it fast. This change drops revset calls in favor of direct testing of the phase of a changeset. Performance test on my Mercurial checkout - 19857 total changesets, - 1584 obsolete changesets, - 13310 obsolescence markers. Before: ! unserved ! wall 0.030477 After: ! unserved ! wall 0.011844 Performance test on a Mozilla central checkout: - 117293 total changesets, - 1 obsolete changeset, - 1 obsolescence marker. Before: ! unserved ! wall 0.111259 After: ! unserved ! wall 0.000084

performance: speedup computation of hidden revisions In their current state, revset calls can be very costlys, as we test predicates on the entire repository. The hidden filter is very widely used, and needs to be very fast. This change drops revset calls in favor of direct revision manipulation. Performance test on my Mercurial checkout - 19857 total changesets, - 1584 obsolete changesets, - 13310 obsolescence markers. Before: ! hidden ! wall 0.077553 After this changes: ! hidden ! wall 0.011230 Performance test on a Mozilla central checkout: - 117293 total changesets, - 1 obsolete changeset, - 1 obsolescence marker. Before: ! hidden ! wall 0.389472 After: ! hidden ! wall 0.000079

performance: speedup computation of obsolete revisions In their current state, revset calls can be very costly as we test predicates on the entire repository. As obsolete computation is used by the "hidden" filter, it needs to be very fast. This changet drops the revset call in favor of direct testing of the phase of a changeset. Performance test on my Mercurial checkout - 19857 total changesets, - 1584 obsolete changesets, - 13310 obsolescence markers. Before: ! obsolete ! wall 0.047041 After: ! obsolete ! wall 0.004590 Performance test on a Mozilla central checkout: - 117293 total changesets, - 1 obsolete changeset, - 1 obsolescence marker. Before: ! obsolete ! wall 0.001539 After: ! obsolete ! wall 0.000017

clfilter: drop unnecessary explicit filtering on histedit Hidden changeset filtering is now done at repo level. The orphaned children computation will not include any (unless you add --hidden).

clfilter: drop unnecessary explicit filtering on rebase Hidden changeset filtering is now done at repo level. The rebaseset computation will not include any (unless you add --hidden).

clfilter: ensure that hidden filtering is working on all commands Now that hidden changeset are filtered for all commands, we test the behavior of `heads` and `summary` regarding hidden changeset.

clfilter: enforce hidden changeset globally The dispatch code now enables filtering of "hidden" changesets globally. The filter is installed before command and extension invocation. The `--hidden` switch is now global and disables this filtering for any command. Code in log dedicated to changeset exclusion is removed as this global filtering has the same effect.

record: use patch.diffopts to account for user diffopts This allows user defined diff options (e.g. showfunc) to be accounted for when using record. A test has been updated accordingly.

convert: fix most test-check-code-hg violations in cvsps code

tests: update hgweb tests to include breadcrumbs

subrepo: add subrepo property to SubrepoAbort exceptions This new property contains the path of the subrepo that generated the exception. This information can then be used by GUI tools such as TortoiseHg.

tests: update test-convert-cvs*.t The preceding commit caused their outputs to change.

cvsps: use commitids (when present) to detect changesets Simplify core logic by no longer attempting to work around missing class attributes. Instead always generate the attributes and ignore the cache if the attributes are missing

hgweb, spartan: link from manifest title to changeset page

hgweb, spartan: add "URL breadcrumbs" This change adds a "URL breadcrumb" to the "title" of the pages on the spartan template. By title I mean the first line that is shown right below the page selection row, which shows the name of the page that is being viewed, along with some additional information. In doing so it standarizes those "titles" which now follow the pattern: URL breadcumb / page details

hgweb: add a "URL breadcrumb" to the index and repository pages The purpose of this change is to make it much easier to navigate up the repository tree when the hg web server is used to serve more than one repository. A "URL breadcrumb" is a path where each of the path items can be clicked to go to the corresponding path page. This lets you go up the folder hierarchy very quickly. For example, when showing the list of repositories in http://myserver/myteams/myprojects, the following "breadcrumb" will be shown: Mercurial > myteams > myprojects Clicking on "myprojects" reloads the page. Clicking on "myteams" goes up one folder. Clicking on the leftmost "Mercurial" goes to the server root. This "breadcrumb" also appears on all repository pages. For example on the summary page of the repository at http://myserver/myteams/myprojects/myrepo the following will be shown: Mercurial > myteams > myprojects > myrepo / summary This change has been applied to all templates that already had a link to the main repository page (i.e. gitweb, monoblue, paper and coal) plus to the index page of the spartan template. In order to make the breadcumb links stand out the some of the template styles have been customized.

merge: never do premerge on symlinks Simplemerge is not symlink aware and will never do the right thing on symlinks.

merge: make internal merge fail cleanly on symlinks Simplemerge is not symlink aware and will never do the the right thing on symlinks. It would read the symlink as a file and abort with 'No such file or directory' on dangling symlinks. Instead, internal:merge now simply fails to merge symlinks.

debugpushkey: list keys sorted

debugdiscovery: report heads in sorted order

hidden: drop of the repo.hiddenrevs property It does not have any user left

context: retrieve hidden from filteredrevs This prepare the dropping of the repo.hiddenrevs property

revset: retrieve hidden from filteredrevs This prepare the dropping of the `repo.hiddenrevs` property

hidden: use both parents of working directory If we are merging with and extinct revision, this extinct revision should not be hidden.

hidden: drop cache on hiddenrevs property The `filteredrevs` function already have a cache mechanism. And this cache in invalidated at the same time than the current property cache. So we drop the cache on the property. The property itself is going to be dropped soon.

hidden: move computation in filter function There is not good reason for this computation to be handle in a different way from the other. We are moving the computation of hidden revs in the filter function. In later changesets, code that access to `repo.hiddenrevs` will be updated and the property dropped.

branchcache: add note about cache invalidation to test-keyword.t [Should've been included in aff706b3a21c.] --Kevin Bullock <kbullock@ringworld.org>

clfilter: add impactable filter The `mutable` filter still have some chance to get invalidated. This will happen when: - you garbage collect hidden changeset, - public phase is moved backward, - something is changed in the filtering (this could be fixed) So we introduce an even more stable filtering set: everything with a revision number egal or higher than the first mutable changeset is filtered. The only official use of this filter is for branchcache.

clfilter: add mutable filtering It filters all mutable changesets, leaving only public changeset unfiltered. This filtering set is expected to be much more stable that the previous one as public changeset are unlikely to disapear. The only official use of this filter is for branchcache.

run-tests.py: fix handling of symlink to the right python Before: a symlink for python in BINDIR was sometimes created, but it was never updated when a different Python was used and it was never removed. An invalid python could thus be left around and used when testing with --local. Now: the symlink is removed when wrong and created when necessary. The mechanism for finding the right name (python or python.exe) also had to be simplified and made more explicit.

log: use "hidden" filtering instead of manual check at display time When log is not given the --hidden option, hidden revision are not shown. We move the implementation from manual checking at display time to changelog filtering. This is the first official usage of the hidden filtering.

clfilter: introduces a hidden filter This filter exclude all hidden revision. We plan to use this filter to hide revision instead of manually checking contents of the hidden revisions set.

perftest: allow selection of volatile set to benchmark This helps when you focus on a subset of the volatile chain.

perftest: add a command to benchmark construction of volatile cache Obsolescence and filtering related caches are critical. Having a handy way to check them is valuable.

perftest: add an option to invalidate volatile cache Some revsets are sensitive to such initialization. Being able to test the impact is great.

perftest: document the perfrevset command I'll add an argument to it.

perftest: migrate to new style command declaration Declaring synopsis and argument on the function site is much clearer.

perftest: drop duplicated codes The `perfnodelookup` lookup commands is duplicated. We drop the first version, overwritten by the seconds.

cmdutil: make options argument optional There is not reason to force passing of an empty options list.

branchmap: allow to use cache of subset Filtered repository are *subset* of unfiltered repository. This means that a filtered branchmap could be use to compute the unfiltered version. And filtered version happen to be subset of each other: - "all() - unserved()" is a subset of "all() - hidden()" - "all() - hidden()" is a subset of "all()" This means that branchmap with "unfiltered" filter can be used as a base for "hidden" branchmap that itself could be used as a base for unfiltered branchmap. unserved < hidden < None This changeset implements this mechanism. If the on disk branchcache is not valid we use the branchcache of the nearest subset as base instead of computing it from scratch. Such fallback can be cascaded multiple time is necessary. Note that both "hidden" and "unserved" set are a bit volatile. We will add more stable filtering in next changesets. This changeset enables collaboration between no filtering and "unserved" filtering. Fixing performance regression introduced by 47f00b0de337

repoview: add a subset table This will be used by branchmap collaboration. See inline documentation for more details

branchmap: add a copy method If we want branchcache of different filter to collaborate, they need a simple way to copy each other. This will ensure that each filtered have no side effect on other filter level cache.

clfilter: use empty frozenset intead of empty tuple This will allows set operation needed for cache collaboration.

run-tests.py: don't use console for stdin when running in debug mode Tests would wait for input instead of using non-interactive mode.

tests: make hghave and run-tests exit on unknown feature requirements

test-largefiles.t: fix wrong '#if hgweb' - it should be '#if serve' A bug introduced in 0c1d10351869 did that a part of the test never was run.

dispatch: show empty filename in OSError aborts Mercurial would sometimes exit with: abort: No such file or directory where str of the actual OSError exception was the more helpful: [Errno 2] No such file or directory: '' The exception will now always show the filename and quote it: abort: No such file or directory: ''

test-dispatch.t: remove incorrect "cd $dir" A line that should have been removed in 50fbe9063ff2.