py2exe: add workaround to allow bundling of hgext3rd.* extensions py2exe doesn't know how to handle namespace packages *at all*, so it treats them like normal packages. As a result, if we try and bundle hgext3rd.evolve in a py2exe build, it won't work if we install evolve into the virtualenv. In order to work around this, tortoisehg installs hgext3rd.evolve etc into its staged hg directory, since it doesn't use a virtualenv. As a workaround for us, we'll just allow any extra packages users want bundled are part of hg during the pseudo-install phase that py2exe uses. I'm not happy about this, but it *works*. As a sample of how you'd make an MSI with evolve bundled: import os import shutil import subprocess import tempfile def stage_evolve(version): """Stage evolve for inclusion in py2exe binary.""" with tempfile.TemporaryDirectory() as temp: evolve = os.path.join(temp, "evolve") subprocess.check_call([ "hg.exe", "clone", "https://www.mercurial-scm.org/repo/evolve/", "--update", version, evolve, ]) dest = os.path.join('..', 'hgext3rd', 'evolve') if os.path.exists(dest): shutil.rmtree(dest) shutil.copytree(os.path.join(evolve, "hgext3rd", "evolve"), dest) def main(): stage_evolve('tip') print("\0") print("hgext3rd") print("hgext3rd.evolve") print("hgext3rd.evolve.hack") print("hgext3rd.evolve.thirdparty") if __name__ == "__main__": main() is a script you can pass to the wix/build.py as --extra-packages-script, and the resulting .msi will have an hg binary with evolve baked in. users will still need to enable evolve in their hgrc, so you'd probably also want to bundle configs in your msi for an enterprise environment, but that's already easy to do with the support for extra features and wxs files in the wix build process. Differential Revision: https://phab.mercurial-scm.org/D6189

wix: fix the package build when not adding features Should have used ifdef, not if. Sigh. Differential Revision: https://phab.mercurial-scm.org/D6187

histedit: narrow the scope of discarded ui output In 34165875fa5df813bec3a0cd348932b304d44efb, a lot of the output from histedit was excluded. This slightly adjusts the scope of that exclusion, to both discard more uninsteresting messages, and ensure that pre-merge-tool output gets shown before the external merge tool is executed. Differential Revision: https://phab.mercurial-scm.org/D6177

uncommit: abort if an explicitly given file cannot be uncommitted (BC) I've gotten burned several times by this in the last few days. The former tests look simple enough, but if a good file and a bad file are given, the bad files are silently ignored. Some commands like `forget` will warn about bogus files, but that would likely get lost in the noise of an interactive uncommit. The commit command aborts if a bad file is given, so this seems more consistent for commands that alter the repository.

unshelve: disable unshelve during merge (issue5123) As stated in the issue5123, unshelve can destroy the second parent of the context when tried to unshelve with an uncommitted merge. This patch makes unshelve to abort when called with an uncommitted merge. See how shelve.mergefiles works. Commit structure looks like this: ``` ... -> pctx -> tmpwctx -> shelvectx / / second merge parent pctx = parent before merging working context(first merge parent) tmpwctx = commited working directory after merge(with two parents) shelvectx = shelved context ``` shelve.mergefiles first updates to pctx then it reverts shelvectx to pctx with: ``` cmdutil.revert(ui, repo, shelvectx, repo.dirstate.parents(), *pathtofiles(repo, files), **{'no_backup': True}) ``` Reverting tmpwctx files that were merged from second parent to pctx makes them added because they are not in pctx. Changing this revert operation is crucial to restore parents after unshelve. This is a complicated issue as this is not fixing a regression. Thus, for the time being, unshelve during an uncommitted merge can be aborted. (Details taken from http://mercurial.808500.n3.nabble.com/PATCH-V3-shelve-restore-parents-after-unshelve-issue5123-tt4036858.html#a4037408) Differential Revision: https://phab.mercurial-scm.org/D6169

wix: add functionality to inject additional Features into installer This is the last bit required to be able to glue extra configs etc into the installer. Differential Revision: https://phab.mercurial-scm.org/D6180

wix: add support for additional wxs files As with my previous change for an --extra-prebuiild-script, I'm assuming this is predominantly useful in an enterprise environment and am only adding this to wix and not also to inno install scripts. Differential Revision: https://phab.mercurial-scm.org/D6179

wix: add a hook for a prebuild script to inject extra libraries I need this to build packages for Google so we can bundle some extensions in the installed image. My assumption is that this is most interesting for the .msi images so I only wired it up there. I'm not thrilled with the interface this provides, but it was an easy way to retain debug messages on Windows while also having enough structure to know what lines are actually module names for py2exe. Still pending on my end: I need to bundle a couple of config files, and at least one data file. I'm open to advice on how to do those things, and how to do this better. Differential Revision: https://phab.mercurial-scm.org/D6164

compression: introduce an official `format.revlog-compression` option This option supersedes the `experiment.format.compression` option. The value currently supported are zlib (default) and zstd (if Mercurial was compiled with zstd support). The option gained an explicit reference to `revlog` since this is the target usage here. Different storage methods might require different compression strategies. In our tests, using zstd give a significant CPU usage improvement (both compression and decompressing) while keeping similar repository size. Zstd as other interresting mode (dictionnary, pre-text, etc…) that are probably worth exploring. However, just plain switching from zlib to zstd provide a large benefit.

compression: display compression level in debugformat Now that we have options to control the compression level, we teach `hg debugformat` about them. This is a useful information when comparing repositories. Note that we have no trace of the compression level used to store existing deltas. Actually, it would even varies from one delta to another. So we display the currently set value.