test: use generaldelta in 'test-rebase-conflict.t' Doing this has some minor impacts on test output since the rebase backup bundle moves to bundle2.

tests: test generaldelta configuration in test-init.t We turn the feature on for the whole test and test that it can properly be disabled through the config.

test: enable generaldelta early in 'test-treemanifest.t' Having generaldelta on results in minor test output changes (as we are staring at the revlog).

test: enable generaldelta in 'test-copy.t' Doing so has a minimal impact on the test.

test: enable generaldelta in 'test-debugcommand.t' The test logic is not affected by generaldelta, so we move it to generaldelta early. Some of the fuzzy matching had to be extended to cover "delta".

test: use generaldelta in test-manifestv2.t Generaldelta and bundle2 have no real influence on this test. So we can safely switch it early.

test: explicitly use generaldelta in 'test-rebase-mq-skip.t' This induces some trivial changes in the tests. This happen in its own changeset for clarity purposes.

test: using generaldelta in 'test-lfconvert.t' This leads to a harmless test change.

test: enforce generaldelta format with the right option The option that will become true by default is now 'usegeneraldelta' We have to adjust the change made in b75fed55f6dc to actually achieve its goal.

test: enforce non-generaldelta base repository in 'test-generaldelta' This test check the difference between various configurations we have to pin the type of some repositories to ensure the test is still correct when we change the default.

test: use generaldelta in 'test-hgweb-command.t' Using generaldelta has a meaningless impact on the capabilities string.

stream: sort stream capability before serialisation We want that capability to be stable in our testing. This is currently not an issue because the set is size 1, but this will be once generaldelta related data gets in there.

test: spread capabilities replies in 'test-hgweb-commands' Any changes to the capabilities string was very hard to review. So we introduce two tests. A small one that validates the format and a second one to validate the content, where each capability is on its own line to make changes simpler to review.

phase: improve retractboundary perf The existing retractboundary implementation computed the new boundary by walking all descendants of all existing roots and computing the new roots. This is O(commits since first root), which on long repos can be hundreds of thousands of commits. The new algorithm only updates roots that are greater than the new root locations. For common operations like commit on a repo with the earliest root several hundred thousand commits ago, this makes retractboundary go from 1 second to 0.008 seconds. I tested it by running the test suite with both implementations and checking that the root results were always the identical. There was some discussion on IRC about the safety of this (i.e. what if the new nodes are already part of the phase, etc). I've looked into it and believe this patch is safe: 1) The old existing code already filters the input nodes to only contain nodes that require retracting (i.e. we only make node X a new root if the old phase is less than the target phase), so there's no chance of us adding a unnecessary root to the phase (unless the input root is made unnecessary by another root in the same input, but see point #3). 2) Another way of thinking about this is: the only way the new algorithm would be different from the old algorithm is if it added a root that is a descendant of an old root (since the old algorithm would've caught this in the big "roots(%ln::)". At the beginning of the function, when we filter out roots that already meet the phase criteria, the *definition* of meeting the phase criteria is "not being a descendant of an existing root". Therefore, by definition none of the new roots we are processing are descendants of an existing root. 3) If two nodes are passed in as input, and one node is an ancestor of the other (and therefore the later node should not be a root), this is still caught by the 'roots(%ln::)' revset. So there's no chance of an extra root being introduced that way either.

merge with stable

format: introduce 'format.usegeneraldelta` This option will make repositories created as general delta by default but will not make Mercurial aggressively recompute deltas for all incoming bundle. Instead, the delta contained in the bundle will be used. This will allow us to start having general delta repositories created everywhere without triggering massive recomputation costs for all new clients cloning from old servers.

scmutil: extract general delta config handling in a function General delta is currently controlled by a single option, we will introduce a new one in the next changeset. We extract the logic in a function while it is simple.

test: test-bundle-type.t needs to work more universally The cut and head utilities on Solaris have weird differences from the GNU versions. The f helper script does a dump more nicely than those tools, anyway.

bash_completion: add -p|--patch|--stat support for shelve

test-convert-git: silence commit output for stablity When running the tests with 1.7.7.6, I get 'files' and 'insertions' instead of the singular forms, and there is also an additional '0 deletions(-)' at the end. Since this doesn't seem important to the test, silence it.

rebase: preserve the 'intermediate-source' attribute of grafts Preserving the 'source' attribute of grafts started with a69a77a80900, which predates the introduction of 'intermediate-source' in 51930a7180bd by a year and a half. It looks like not preserving this was an oversight. On a related note, notice how the source value of 32af76 is no longer visible in the graph above this test. Is it reasonable to import the sha1 translation from evolve.py:relocate() into scmutil or similar, and use that to fixup these attributes as well as the commit message? (I realize that evolve is still experimental, but I don't see a way to do this from the evolve extension.)

merge with stable

verify: add a hook that can let extensions manipulate file lists Without a hook of this nature, narrowhg[0] clones always result in 'hg verify' reporting terrible damage to the entire repository history. With this hook, we can ignore files that aren't supposed to be in the clone, and then get an accurate report of any damage present (or not) in the repo. 0: https://bitbucket.org/Google/narrowhg

resolve: don't abort when file is missing A file being missing is a completely valid situation in which the user may want to re-resolve merge conflicts. Mercurial already maintains backups of local data, so this turns out to be easy to handle.