stringutil: teach pprint() to indent This will make data structure dumping in various places a bit easier to read and diff. Since I wanted this for `hg debugwireproto` output, I added indentation to it. A more advanced pretty printer implementation would conditionally add newlines if output is too long. But it is vastly simpler to be consistent and always add newlines when indenting. Again, I'm not crazy about the verbosity of the code and there is room to consolidate logic for "print a collection." But this isn't the most complicated code in the world and I'm not convinced it is worth doing. Differential Revision: https://phab.mercurial-scm.org/D4399

zsh_completion: complete merge tools for -t/--tool Differential Revision: https://phab.mercurial-scm.org/D4362

shelve: add an "internal" extra Keeping shelve changeset around increase the risk of collision with normal changesets. To prevent such collision and help with overall clarity, we add an 'internal' key in extra that mark the changeset as created by "shelve". Node changes in tests are expected.

shelve: write metadata file on the fly if they are missing Keeping an explicit reference to the shelve node in order to reuse it directly if the unshelved is repeated (eg: unshelve --keep).

shelve: look for shelved node in the repository before unbundling This prepares the version of shelve that would not strip the shelved node from the repository. If we have the node information, search for it in the repository and only fallback on unbundling if it is missing. To be able to find such nodes, we operate on an unfiltered repository.

shelve: handle shelved node on unfiltered repository To build a version of shelve that use hiding instead of stripping, we need shelve to be able to find these revisions. This it does not hurt the bundle version, so we introduce the necessary code in the relevant place.

shelve: store shelved node in a new data file It is useful for a version of shelve not based on bundle and strip. Having more data does not hurt the bundle based case so we introduce it in all cases before doing more rework. We also keep storing the patch using another method. note: We could have this metadata file list all the file involved in the shelve and use that for cleanup. This would be more future proof than having a hard-coded list of file to purge. However, this is an adventure for another series.

templatekw: add {path} keyword to host documentation It's hidden since I'm not sure if filectx templates can be a thing. The plan is to add {status}, {size}, etc., which are usable within {files % ...} context.

status: rename {copy} to {source} for compatibility with {file_copies} (BC) .. bc:: ``{copy}`` in status command template is renamed to ``{source}``.

formatter: rename {abspath}/{file} to {path}, and drop relative {path} (BC) Note that {path} in status is either relative-to-cwd or repository-absolute depending on the command argument and config knob, which can't be reproduced by using the {path|relpath} filter. The default template is updated to always use a relative path. .. bc:: ``{abspath}`` and ``{file}`` in generic templates are renamed to ``{path}``. Any ``{path}`` is a repository-absolute path. Use ``{path|relpath}`` to convert it to a filesystem path.

templatekw: alias {name} of file copies dict to {path} For the same reason as the previous patch. We might want some hack to support {source.path}, {source.rev}, etc., but that's a different issue.

templatekw: alias {file} of files list to {path} This is a part of the name unification. All {path}s will be changed to repository-absolute (i.e. canonical) paths. https://www.mercurial-scm.org/wiki/GenericTemplatingPlan#Dictionary

copies: improve logic of deciding copytracing on based of config options Few months ago or maybe a year ago, I imported Fb's heuristics based copytracing algorithms. While importing that, I renamed `experimental.disablecopytrace` with `experimental.copytrace` and the behavior of the new config option was like this: * "heuristics" : Fb's heuristic copytracing algorithm * "off" : copytracing is turned off * something else: copytracing is on This is the behavior right now also and this is bad because it hardcodes the string 'off' to turn off the copytracing. On big repositories, copytracing is very slow and people wants to turn copytracing off. However if the user sets it to 'False', 'Off', '0', none of them is going to disbale copytracing while they should. I lacked the understanding of why this can be bad when I coded it. After this patch, the new behavior of the config option will be: * "heuristics": Fb's heuristic copytracing algorithm * '0', 'false', 'off', 'never', 'no', 'NO', all the values which repo.ui.configbool() evaluates to False: copytracing in turned off * something else: copytracing is on Since 'off' still evaluates to copytracing being turned off, this is not BC. Also the config option is experimental. Differential Revision: https://phab.mercurial-scm.org/D4416

relnotes: enable extension when running releasenotes command Last night, when I was working on different machine, the test worked, now on a different machine it does not. Looks like we should make sure releasenotes extension is loaded. Differential Revision: https://phab.mercurial-scm.org/D4425

narrow: rename getbundlechangegrouppart_nonellipsis function The function is renamed to getbundlechangegrouppart_widen as per suggestion in D4383. The motivation is such that we can evolve the function into a handler for new wire-protocol command. Differential Revision: https://phab.mercurial-scm.org/D4424