index: rename "nt_*(indexObject *self,...)" functions to "index_*" These functions do something with the nodetree, but they're less generic and won't make sense as methods on the nodetree when it becomes a Python type. Differential Revision: https://phab.mercurial-scm.org/D4115

index: split up nt_init() in two I'd like to make nt_init() take a pointer to a nodetree to initialize, but it currently also allocates the nodetree. This patch prepares for that change by making nt_init() be about initializing an existing node tree and by creating a new index_init_nt() that creates the nodetree. Differential Revision: https://phab.mercurial-scm.org/D4114

index: make most "nt_*" functions take a nodetree Now that the nodetree has a pointer to the index, we can pass the nodtree instead of the index. There are few "nt_*" functions left after this. I'll deal with them soon. Differential Revision: https://phab.mercurial-scm.org/D4113

index: add pointer from nodetree back to index This is always a cycle right now, but it will not be for the nodetree instances I'm planning to add later (see earlier patch). Differential Revision: https://phab.mercurial-scm.org/D4112

index: remove side-effect from failed nt_new() As pointed out by Yuya in the review of D4108, if realloc() fails, we would end up with an invalid nodetree instance (with nt->nodes set to NULL), which means that if it was later accessed again it would likely segfault. It's probably unlikely that much else happens in the process if it ran out memory, but we should of course do our best to handle it. This patch makes it so we don't update the nodetree in this case. Differential Revision: https://phab.mercurial-scm.org/D4154

index: remove side-effect from failed nt_init() As pointed out by Yuya in the review of D4108, if we run into the "overflow in nt_init" case (which I think normally happens only in repos with at least 2^26=64Mi revisions), we would leave the node tree half-initialized. Differential Revision: https://phab.mercurial-scm.org/D4153

index: use PyMem_Free() to free nodeetree instance As Yuya pointed out in the review of D4108, PyMem_Malloc() and PyMem_Free() should be paired. IIUC, PyMem_Malloc() may use a different allocator than malloc(), so using free() with a pointer from PyMem_Malloc() may be very wrong. Differential Revision: https://phab.mercurial-scm.org/D4152

linelog: fix infinite loop vulnerability Checking `len(lines)` is not a great way of detecting infinite loops, as demonstrated in the added test. Therefore check instruction count instead. The original C implementation does not have this problem. There are a few other places where the C implementation enforces more strictly, like `a1 <= a2`, `b1 <= b2`, `rev > 0`. But they are optional. Test Plan: Add a test. The old code forces the test to time out. Differential Revision: https://phab.mercurial-scm.org/D4151

tests: fix bytes/str issues in run-tests.py caught by python3 Differential Revision: https://phab.mercurial-scm.org/D4143

changegroup: assign to proper attribute 0548f696795b accidentally assigned to self.clrevtolocalrev instead of self._clrevtolocalrev. Surprisingly, no tests failed as a result of this mistake. Curious. Differential Revision: https://phab.mercurial-scm.org/D4144

absorb: remove sf alias for command I'm not even sure what it is supposed to stand for. Differential Revision: https://phab.mercurial-scm.org/D4126

templatekw: deprecate old-style template keyword function (API) .. api:: `f(**kwargs)` style template keyword function is deprecated. Switch to new `(context, mapping)` API by declaring resource requirements. The new-style API will be the default in Mercurial 4.9. See registrar.templatekeyword for details.

hgweb: mark all lambda template keywords as new-style function This is just a temporary workaround, and will be removed in Mercurial 4.9.

hgweb: use registrar to add "motd" template keyword This prepares for deprecation of old-style keyword functions.

fileset: load core predicates directly to symbols dict We no longer have any side effect in loadpredicate().

fileset: turn on listclean conditionally This is just a micro optimization.

changegroup: always use the treemanifest-enabled version of _packmanifests() It works for flat manifests too. We just cannot use cg1 or cg2 if we have subdirectory manifests. Differential Revision: https://phab.mercurial-scm.org/D4124

linelog: add replacelines_vec for fastannotate # no-check-commit because we're conforming to an existing interface Differential Revision: https://phab.mercurial-scm.org/D3993

absorb: drop wrapper around the amend command We can reinstate this later if we want. Differential Revision: https://phab.mercurial-scm.org/D3992

absorb: note some TODOs from the code review Differential Revision: https://phab.mercurial-scm.org/D4047

absorb: use ui.debug() instead of open-coding it Differential Revision: https://phab.mercurial-scm.org/D4046

absorb: use pycompat to get xrange Differential Revision: https://phab.mercurial-scm.org/D4045

absorb: use set literal to avoid intermediate list Differential Revision: https://phab.mercurial-scm.org/D4044

absorb: avoid mutable default arg Differential Revision: https://phab.mercurial-scm.org/D4043

absorb: import extension from Facebook's hg-experimental absorb is a wicked-fast command to use blame information to automatically amend edits to the correct draft revision. Originally written by Jun Wu, this import is hgext3rd/absorb/__init__.py with: * the `testedwith` value changed * the linelog import updated * some missing configitems registered * some imports reordered per check-code.py * some missing __future__ imports added per check-code.py Differential Revision: https://phab.mercurial-scm.org/D3991

resolve: organize 'if confirm' conditionals Differential Revision: https://phab.mercurial-scm.org/D4123

index: pass only nodetree to nt_new() The function now only depends on the nodetree, not the index. Differential Revision: https://phab.mercurial-scm.org/D4111

index: drop now-redundant "nt" prefix of fields in nodetree struct Differential Revision: https://phab.mercurial-scm.org/D4110

index: move more fields onto nodetree type The fields moves are the ones that are not related to how the nodetree is used in the index and that will make sense for the new nodetree instance for a subset of the index that I'll add later. Differential Revision: https://phab.mercurial-scm.org/D4109

index: extract a type for the nodetree This is a first step towards exposing the nodetree as a Python type. Differential Revision: https://phab.mercurial-scm.org/D4108