Merge with stable

get-with-headers: add a --headeronly switch In some case we do not care about the actual rendering. [ original upstream message ]

tests: make test-hgweb.t output stable Instability introduced in combination of a4d7fd7ad1f7 and e389a25e7e60. [ original upstream message ]

serve: don't send any content headers with 304 responses Fixes HTTP protocol violation introduced in cf5c76017e11. 'hg serve' would show a stacktrace when loading pages that not had been modified. There was test coverage for this, but the wrong response headers wasn't shown and thus not detected. [ original upstream message ]

destroyed: drop complex branchcache rebuilt logic The strip code used a trick to lower the cost of branchcache update after a strip. However is less necessary since we have branchcache collaboration. Invalid branchcache are likely to be cheaply rebuilt again a near subset of the repo. Moreover, this trick would need update to be relevant in the now filtered repository world. It currently update the unfiltered branchcache that few people cares about. Make it smarter on that aspect would need complexes update of the calling logic So this mechanism is: - Arguably needed, - Currently irrelevant, - Hard to update and I'm dropping it. We now update the branchcache in all case by courtesy of the read only reader. This changeset have a few expected impact on the testsuite are different cache are updated. [ original upstream message ]

branchmap: update cache of 'unserved' filter on new changesets The `commitctx` and `addchangegroup` methods of repo upgrade branchcache after completion. This behavior aims to keep the branchcache in sync for read only process as hgweb. See ee317dbfb9d0 for details. Since changelog filtering is used, those calls only update the cache for unfiltered repo. One of no interest for typical read only process like hgweb. Note: By chance in basic case, `repo.unfiltered() == repo.filtered('unserved')` This changesets have the "unserved" cache updated instead. I think this is the only cache that matter for hgweb. We could imagine updating all possible branchcaches instead but: - I'm not sure it would have any benefit impact. It may even increase the odd of all cache being invalidated. - This is more complicated change. So I'm going for updating a single cache only which is already better that updating a cache nobody cares about. This changeset have a few expected impact on the testsuite are different cache are updated. [ original upstream message ]

tests: run with PYTHONHASHSEED=random Python set and dict iteration order is in principle undefined but usually 'quite stable'. Setting PYTHONHASHSEED=random will make the iteration order more random in Python 2.6.8 and 2.7.3 and where it has been backported. This can thus help spot dependencies on undefined behaviour and prevent future problems. [ original upstream message ]

run-tests: exit cleanly if parallel run is interrupted If interrupted while running with "--jobs N", run-tests asynchronously spewed a bunch of output and backtraces from both the master and slave processes, leaving the terminal full of goop. This patch makes it behave more sensibly. [ original upstream message ]

filtering: rename filters to their antonyms Now that changelog filtering is in place, it's become evident that naming the filters according to the set of revs _not_ included in the filtered changelog is confusing. This is especially evident in the collaborative branch cache scheme. This changes the names of the filters to reflect the revs that _are_ included: hidden -> visible unserved -> served mutable -> immutable impactable -> base repoview.filteredrevs is renamed to filterrevs, so that callers read a bit more sensibly, e.g.: filterrevs('visible') # filter revs according to what's visible [ original upstream message ]

Merge with default

test: improve grammar and spelling in branchcache note See: 769eb1b179b5

Merge with stable

hghave: introduce a test (unused) for cvs >= 1.12 [ original upstream message ]

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. [ original upstream message ]

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

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. [ original upstream message ]

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. [ original upstream message ]

Merge with stable

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 [ original upstream message ]

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. [ original upstream message ]

tests: make hghave and run-tests exit on unknown feature requirements [ original upstream message ]

Merge with stable

localrepo: filter unknown nodes from the phasecache on destroyed When commit is followed by strip (qrefresh), phasecache contains nodes that were removed from the changelog. Since phasecache is filecached with .hg/store/phaseroots which doesn't change as a result of stripping, we have to filter it manually. If we don't write it immediately, the next time it is read from disk the nodes will be filtered again. That's what happened before, but there's no reason not to write it immediately. The change in test-keyword.t is caused by the above. [ original upstream message ]

Merge with stable

strip: do not update branchcache during strip (issue3745) At this moment, the cache is invalid, and will be thrown away. Later the strip function will call the `localrepo.destroyed` method that will update the branchmap cache. [ original upstream message ]

branchmap: move validity logic in the object itself In several place, We check if a branchcache is still valid regarding the current state of the repository. This changeset puts this logic in a method of the object that can be reused when necessary. A branch map is considered valid whenever it is up to date or a strict subset of the repository state. The change will help making branchcache aware of filtered revision. The change in keyword is expected. the branch cache is actually invalid after the amend. The previous check did not detected it. [ original upstream message ]

Merge with stable

run-tests: fix whitespace nonsense [ original upstream message ]

run-tests: on windows, put correct python at front of PATH The older approach of trying to copy the python executable into the test directory was doomed to fail. There remains one weakness with this approach: if you've run "make local", tests may pick up the wrong extension DLLs from inside the source tree. I don't know why this happens. A reasonable workaround for now is to test either using --local or with a working directory that does not contain built DLLs. [ original upstream message ]

tests: kill daemons early, making breaking at "Accept" prompt safe [ original upstream message ]

run-tests: fix exename on Windows [ original upstream message ]

run-tests: support running tests in parallel on windows Previously, we used os.spawnvp, which doesn't exist on Windows, and isn't needed anyway (the command line begins with an absolute path). We also need a slightly more convoluted way to wait for processes without specifying an order on Windows, as it lacks os.wait. [ original upstream message ]