subrepo: return non-zero exit code when a subrepo push doesn't succeed

debugrevlog: use unfiltered view for changelog

debugrevlog: format columns (more) nicely when dumping index data

branchmap: log events related to branch cache The blackblox log will now contain log events when the branch caches are updated and written.

tags: log events related to tags cache We now log when .hg/cache/tags data is built from scratch by reading manifests and when the file is written.

merge with stable

histedit: save manually edited commit message into ".hg/last-message.txt" Before this patch, manually edited commit message for "message" command in histedit-ing is not saved into ".hg/last-message.txt" until it is saved by "localrepository.savecommitmessage()" in "localrepository.commit()". This may lose such commit message, if unexpected exception is raised. This patch saves manually edited commit message for "message" comand in histedit-ing into ".hg/last-message.txt" just after user editing. This is the simplest implementation to fix on stable. Editing and saving commit message should be centralized into the framework of "localrepository.commit()" with "editor" argument in the future. This patch uses repository wrapping class for exception raising before saving commit message in "localrepository.commit()" easily and certainly, because such exception requires corner case condition.

rebase: tell when reopening a closed branch head Give same 'reopening closed branch head X' message as commit gives.

dirstate: inline local finish function Having it as a local function adds no value.

demandimport: make it possible to disable by setting HGDEMANDIMPORT=disable Convenient for debugging weird problems that are caused by demandimport or obfuscated by it. This is an undocumented developer feature.

spelling: fixes from spell checker

tests: warn on invalid #if directive

run-tests: test result shows when a failed test could not start a server Failing to start a server happens regularly, at least on windows buildbot. Such a failure often has nothing to do with the test, but with the environment. But half the test output can change because some data is missing. Therefore this is worth an extended error message. Detect the server failure in the diff output because it is most reliable there. Checking the output only does not show if the server failure was expected. Old failure message when server start failed: Failed test-serve.t: output changed New message: Failed test-serve.t: serve failed and output changed

commit: --edit/-e to force edit of otherwise-supplied commit message The --edit/-e option for the 'commit' command forces editor, even when a commit message has been provided already by other means, such as by the -m or -l options.

bundle2: directly feed part to readbundle Now that part payload can be read like a stream, we can directly use it to feed the unbundle10 process.

bundle2: lazy unbundle of part payload The `unbundle` part gains a `read` method to retrieve payload content. This method behaves as a python file-like read method. The bundle-processing code is updated to make sure a part is fully consumed before another one is extracted. Test output changes because the debug output is even more interleaved now.

util: support None size in chunkbuffer.read() When no size is provided, read the whole buffer. This aligns with the usual behavior of `read()` in python.

bundle2: lazily iterate over bundle parts in the test We used to create a list to know the number of parts in the bundle. This prevents any lazy reading as planned for real usage. The list creation is dropped. Some test output changed as debug output is now interleaved with command output.

bundle2: move unpackheader closure into the class With the same argument as the other one, we move this closure into the `unbundlepart` class.

bundle2: move the fromheader closure into the class itself The class is now directly related to this header data. We can sanely move it on the class. I do not like closures very much...

bundle2: add an unbundle part responsible from unbundling part We have a new unbundle class and it is now responsible from extracting its own data. The top level bundler only extracts the header (to detect an end of stream marker) then leaves everything else to the `unbundlepart` class. The ultimate goal is to have `unbundlepart` responsible for lazily extracting its payload. This is mostly code movement.

bundle2: extract stream/unpack logic in an unpackermixin The coming `unbundlepart` will need the same kind of method than `unbundle20` for unpacking data from the stream. We extract them into a mixin class before the creation of `unbundlepart`.

exchange: restore truncated comment The old version of this comment appeared to have been trunca

grep: highlight all matched words "hg grep" highlights first matched word only. This behavior is different from GNU grep. This patch makes highlight all matched words.

phase: add a passing test for (issue3575) Apparently this issue was fixed along the way (If it ever existed at all…)

run-tests: allow test paths in other directories Previously, test paths were assumed to be in the same directory and wouldn't have a directory component. If a path with a directory component was specified, it would be filtered out. This change allow paths to contain directories. This in turn allows tests from other directories to be executed. Executing tests in other directories may break assumptions elsewhere in the testing code. However, on initial glance, things appear to "just work." This approach of running tests from other directories is successfully being used at https://hg.mozilla.org/hgcustom/version-control-tools/file/7085790ff3af/run-mercurial-tests.py

run-tests: allow option parser to be extended This patch moves the OptionParser population into its own function so consumers may modify the OptionParser before arguments are evaluated. This will allow consumers to add custom options, set different defaults, etc.

run-tests: use return values instead of sys.exit

run-tests: Pass arguments into argument parser Before, arguments were not passed into the optparse.OptionParser instance and were coming from sys.argv. This patch enables consumers to define the list of arguments to parse without having to adjust sys.argv.

bundle2: rename part to bundlepart We are going to introduce an `unbundlepart` dedicated to reading bundle. So we need to rename the one used to create bundle. Even if dedicated to creation, this is still used for unbundling until we get the new class.

bundle2: comment to clarify why the handler call is where it is The reason why it is here is not obvious. I'm the one who wrote it there in the first place and almost moved it 2 weeks later.

bundle2: use chunkbuffer for exchange.getbundle We can use `util.chunkbuffer` instead.