streamclone: force @filecache properties to be reloaded from file Before this patch, consumev1() invokes repo.invalidate() after closing transaction, to force @filecache properties to be reloaded from files at next access, because streamclone writes data into files directly. But this doesn't work as expected in the case below: 1. at closing transaction, repo._refreshfilecachestats() refreshes file stat of each @filecache properties with streamclone-ed files This means that in-memory properties are treated as valid. 2. but streamclone doesn't changes in-memory properties This means that in-memory properties are actually invalid. 3. repo.invalidate() just forces to examine file stat of @filecache properties at the first access after it Such examination should concludes that reloading from file isn't needed, because file stat was already refreshed at (1). Therefore, invalid in-memory cached properties (2) are unintentionally treated as valid (1). This patch invokes repo.invalidate() with clearfilecache=True, to force @filecache properties to be reloaded from file at next access. BTW, it is accidental that repo.invalidate() without clearfilecache=True in streamclone case seems to work as expected before this patch. If transaction is started via "filtered repo" object, repo._refreshfilecachestats() tries to refresh file stat of each @filecache properties on "filtered repo" object, even though all of them are stored into "unfiltered repo" object. In this case, repo._refreshfilecachestats() does nothing unintentionally, but this unexpected behavior causes reloading @filecache properties after repo.invalidate(). This is reason why this patch should be applied before making _refreshfilecachestats() correctly refresh file stat of @filecache properties.

manifest: backed out changeset bb3281b3fcaa There is some suspicious failure in evolution tests. This changeset was supposed to be dropped until we investigate.

manifest: backed out changeset b60a5fe98b73 There is some suspicious failure in evolution tests. This changeset was supposed to be dropped until we investigate.

debugrevspec: deprecate --optimize option This option has been superseded by '--show-stage NAME', and will cause confusion in future patches.

debugrevspec: add option to print parsed tree at given stages "-p <stage>" is useful for investigating parsing stages. With -p option, a transformed tree is printed no matter if it is changed or not, which allows us to know valid stage names by "-p all".

debugrevspec: transform and print parsed tree by stages Prepares for adding new option to print transformed tree at each stage.

debugrevspec: build parsed tree even if no --verbose specified Prepares for evaluating unoptimized tree. The output is suppressed by ui.note() anyway.

osutil: fix the declaration to work on different sizes of off_t

manifest: change manifestctx to not inherit from manifestdict If manifestctx inherits from manifestdict, it requires some weird logic to lazily load the dict if a piece of information is asked for. This ended up being complicated and unintuitive to use. Let's move the dict creation to .read(). This will make even more sense once we start adding readdelta() and other similar methods to manifestctx.

manifest: make uses of _mancache aware of contexts In a future patch we will change manifestctx and treemanifestctx to no longer derive from manifestdict and treemanifest, respectively. This means that consumers of the _mancache will now need to be aware of the different between the two, until we get rid of the manifest entirely and the _mancache becomes only filled with ctxs.

manifest: add treemanifestctx class Before we start using repo.manifestlog in the rest of the code base, we need to make sure that it's capable of returning treemanifests. As we add new functionality to manifestctx, we'll add it to treemanifestctx at the same time. We also comment out the manifestctx p1, p2, and linkrev fields for now, since we're not implementing them on treemanifest yet.

revset: add public function to create matcher from evaluatable tree "hg debugrevspec" will use it to evaluate unoptimized tree.

revset: make analyze() a separate step from optimize() This will allow us to evaluate unoptimized tree and compare the result with optimized one. The private _analyze() function isn't renamed since I'll add more parameters to it.

revset: extract tree transformation from optimize() This patch separates the simple tree transformation from the optimization step, which is called as _analyze() since I'll extend this function to infer ordering flags. I want to avoid making _optimize() more complicated. This will also allow us to evaluate unoptimized tree.

hghave: fix has_bzr() to not try to import RevisionSpec as module Since RevisionSpec isn't a module, "import bzrlib.revisionspec.RevisionSpec" would always raise ImportError.

update: label bookmark name in message We label bookmark name as such in various messages. This will help them to standout (or at least give the user the option to make them stand out). We use a distinct label for the 'active' bookmark, this can help users to catch bookmark operation affecting their working copy.

discovery: explicitly check for None in outgoing init f09d0004481c introduced default params for discovery.outgoing(), but it used a falsy check instead of an explicit check for None. The result is that callers that passed in an empty list would have that list overridden by the defaults, which is not the expected behavior. This was discovered by changes to the test-pushrebase.t test in Facebook's repository of mercurial extensions.

import: report directory-relative paths in error messages (issue5224) Import uses paths relative to the root of the repository, so when user imports patch with paths relative to the current working directory import aborts with 'unable to find file for patching'. This patch improves this situation by warning the user that paths are relative to the root of repository when patching fails.

commands: remove unecessary copying of list in graft()

revset: do not partial-match operator and function names in optimize() It was error-prone, and actually there was a typo, s/ancestorspec/ancestor/.

revset: remove false condition to process 'negate' operator 'negate' is mapped to 'string' at the above clause.

revset: make optimize() reject unknown operators This should have caught the bug of 'keyvalue' operator fixed at 5004ef47f437. The catch-all pattern is useless since optimize() should be aware of all known operators.

help: show content for explicitly disabled extension (issue5228)

obsolete: fix minor module documentation issues

debugextensions: hide "ships-with-hg-core" magic string (BC) Since we have "bundled" flag, we no longer need to rephrase "ships-with-hg-core" to show as "internal".

debugextensions: show ships-with-hg-core state as a separate field This is less magical than rephrasing ships-with-hg-core as internal, and we can distinguish "internal" liar. "tested with: internal" will be hidden by the next patch.

test-debugextensions: add dummy extension to make ifcontains() test more solid If testedwith were a string, ifcontains("3.2", testedwith) would match "3.2.1". New test added to cover that.

py3: remove use of *L syntax The int in Python 3 behaves as long so no need of L's in py3. Moreover we dont need long here.

util: rename checkcase() to fscasesensitive() (API) I always read the name "checkcase(path)" as "do we need to check for case folding at this path", but it's actually (I think) meant to be read "check if the file system cares about case at this path". I'm clearly not the only one confused by this as the dirstate has this property: def _checkcase(self): return not util.checkcase(self._join('.hg')) Maybe we should even inverse the function and call it fscasefolding() since that's what all callers care about?

manifest: call m1.load and m2.load before writing a subtree As part of refactoring the manifest, certain test cases started failing because writesubtrees was called with p1 and p2 manifests that had not been loaded (so accessing m1._dirs resulted in an empty set). Let's call _load on these before attempting to access _dirs. This was caught by tests when future patches were applied.

histedit: correct output of error when 'base' is from the edit list This was made more obvious by marmoute's recent rearrangement of this code.

py3: split check of pygments-using files from the rest of the tree If we don't do this, people without pygments installed in their Python 3 environment silently stop checking test-check-py3-compat, which isn't really what we wanted. This preserves stability of the test output while still letting anyone with a recent-enough Python 3 run the majority of the Python 3 compat checking test.

version: change "place" field of extension to "bundled" flag The name "place" sounds odd. We can simply expose raw boolean values instead of switching external/internal literals.

extensions: use ismoduleinternal() thoroughly "ships-with-hg-core" would be long enough to typo.

lock: show more detail for new-style locks in lock waiting message (issue4752) Improve the lock waiting warning message by explicitly saying that a host and process are holding the lock. This nudges confused new users in the direction of investigating the other process instead of removing the lock.

formatter: add context manager interface for convenience And port "hg files" to test it. As you can see, extra indent is necessary to port to this API. I don't think we should switch every fm.formatter() call to "with" statement.

histedit: remove now unused 'constraints' related code Now that the one action that need different logic handle that using inheritance and overriding, we can remove that code.

histedt: use inheritance to override the constraints in 'base' All actions but one actually have the same constraints when it comes to validate the 'action.node' value. So we actually just add this code to a method that can be overwritten in the one action where it matters. The now unused 'contraints' related enum and class attribute will be cleaned up in the next changeset.

histedit: move constraint verification to the 'action.verify' method Action has a method dedicated to verifying its validity. So we move code related to constrains into that method. This requires a bit more context to the 'verify' method in the same fashion we were passing the 'prev' argument. This is an extra step before we can simplify the constraint handling code further.

histedit: directly use node in 'verifyactions' It does not seem useful to convert to hex: it is an extra step and they are longer strings. So we stick to node for the logic. We only convert to short hex for error when needed. As a nice side effect this remove the explicit constant usage in'[12:]'. This will also help moving the code around later as we just have to access action.node.

histedit: temporarily shorten name of 'constraints' variable An upcoming changeset will make the line where this variable is used slightly too long. Other later changesets will clean that up further and makes the variable unnecessary, so this is only temporary and it does seems useful to put anything more complicate in place.

histedit: drop the 'nodetoverify' local variable We can just use 'action.node'.

histedit: make 'constraints' a class attribute instead of a method There does not seem to be a reason for this to be a method. So we initialise the class attribute once and for all at creation time and drop the instance method.

histedit: drop the 'nodetoverify' method That method is just returning self.node and is never overridden. We just use the attribute directly instead and get rid of the method. This is the beginning of series to simplify and unify verification of constraints for actions.

test-gpg: start gpg-agent by gpg-connect-agent only if GnuPG v2.1+ detected Danek Duvall found that gpg-connect-agent of GnuPG 2.0 never starts gpg-agent daemon. The 2.1 way is documented as "gpg-coonect-agent /bye" [1], which appears to be different from the 2.0 way [2]. [1]: https://www.gnupg.org/documentation/manuals/gnupg/Invoking-GPG_002dAGENT.html [2]: https://www.gnupg.org/documentation/manuals/gnupg-2.0/Invoking-GPG_002dAGENT.html Since "gpg-agent --daemon" of GnuPG 2.1 never prints environment variables, "eval $(gpg-agent --daemon)" would be valid only for GnuPG < 2.1, and we'll need a different workaround for 2.0. I have no 2.0 environment, I won't implement it.

rebase: properly calculate total commits to rebase (issue5347) Before this, predecessor commits were being included in the count

mpatch: add setup_mpatch_cffi.py This file got dropped when the corresponding setup.py changes were made.

journal: rename on disk files to 'namejournal' The 'journal' naming is already used by the transaction journal. Having an unrelated group of file with such a close naming is confusing and error prone. We rename the file used by the 'journal' extension to use 'namejournal' as the extension track the location of various 'names'.

tests: guard demandimport segment of test-extension.t

tests: skip demandimport if disabled demandimport and setuptools and decorator (from ironpython) and pygments leads to lots of fail. If demandimport is disabled we should skip testing it...

hghave: add demandimport checking

hghave: make bzr checks stricter My bzr does not have bzrlib.revisionspec.RevisionSpec, and thus tests were failing because convert refused to believe in bzr, but hghave without this change thought it was available.

help: document wire protocol commands

help: document wire protocol "handshake" protocol There isn't a formal handshake protocol in the wire protocol. But clients almost certainly need to perform particular actions before they can communicate with a server optimally. So document what that is so people understand what's going on at connection establishment time.

help: document wire protocol capabilities All capabilities from the history of the project are now documented.

crecord: properly handle files with No newline at eof (issue5268) Yes, this bug was a single character with the wrong case...

annotate: pre-calculate the "needed" dictionary (issue5360) The "needed" dict is used as a reference counter to free items in the giant "hist" dict. However, currently it is not very accurate and can lead to dropping "hist" items unnecessarily, for example, with the following DAG, -3- / \ 0--1--2--4-- The current algorithm will visit and calculate rev 1 twice, undesired. And it tries to be smart by clearing rev 1's parents: "pcache[1] = []" at the time hist[1] being accessed (note: hist[1] needs to be used twice, by rev 2 and rev 3). It can result in incorrect results if p1 of rev 4 deletes chunks belonging to rev 0. However, simply removing "needed" is not okay, because it will consume 10x memory: # without any change % HGRCPATH= lrun ./hg annotate mercurial/commands.py -r d130a38 3>&2 [1] MEMORY 49074176 CPUTIME 9.213 REALTIME 9.270 # with "needed" removed MEMORY 637673472 CPUTIME 8.164 REALTIME 8.249 This patch moves "needed" (and "pcache") calculation to a separate DFS to address the issue. It improves perf and fixes issue5360 by correctly reusing hist, while maintaining low memory usage. Some additional attempt has been made to further reduce memory usage, like changing "pcache[f] = []" to "del pcache[f]". Therefore the result can be both faster and lower memory usage: # with this patch applied MEMORY 47575040 CPUTIME 7.870 REALTIME 7.926 [1]: lrun is a lightweight sandbox built on Linux cgroup and namespace. It's used to measure CPU and memory usage here. Source code is available at github.com/quark-zju/lrun.

help: document wire protocol transport protocols The HTTP and SSH transport protocols are documented. This includes how commands and arguments are serialized as well as response types.

help: internals topic for wire protocol The Mercurial wire protocol is under-documented. This includes a lack of source docstrings and comments as well as pages on the official wiki. This patch adds the beginnings of "internals" documentation on the wire protocol. The documentation should have nearly complete coverage on the lower-level parts of the protocol, such as the different transport mechanims, how commands and arguments are sent, capabilities, and, of course, the commands themselves. As part of writing this documentation, I discovered a number of deficiencies in the protocol and bugs in the implementation. I've started sending patches for some of the issues. I hope to send a lot more. This patch starts with the scaffolding for a new internals page.

grep: add formatter support Several fields are renamed to be consistent with the annotate command, which doesn't mean the last call for the name unification [1]. Actually, I'd rather rename line_number to linenumber, linenum, lineno or line, but I want to port the grep command to formatter first. [1]: https://www.mercurial-scm.org/wiki/GenericTemplatingPlan#Dictionary I don't have any better name for the list of matched/unmatched texts, so they are just called as "texts".