extdata: avoid crashing inside subprocess when we get a revset parse error Differential Revision: https://phab.mercurial-scm.org/D6616

extdata: demonstrate bad behavior when a subprocess emits garbage Differential Revision: https://phab.mercurial-scm.org/D6615

py3: don't run source transformer on hgext3rd (extensions) It's unclear why the source transformer runs on hgext3rd. It's been like that since it was introduced in 1c22400db72d (mercurial: implement a source transforming module loader on Python 3, 2016-07-04), and that commit didn't say anything about it (but it says that it doesn't have "support [...] for extensions"). I find that the current handling of hgext3rd just makes it harder to convert extensions to Python 3. It makes you convert a bunch of strings passed to getattr() and kwargs[] to r'' that could otherwise have been left alone. It's also really confusing that the source transformer runs when you import the extension as "extensions.foo=", but not as "extension.foo=/some/path". I suppose there is small number of (very simple) extensions that would have worked without this patch that would now be broken. It seems okay to me to break those. Differential Revision: https://phab.mercurial-scm.org/D6614

crecord: provide 'X' as a range-select mechanism Differential Revision: https://phab.mercurial-scm.org/D6621

crecord: make KEY_ENTER usable in tests (by not updating UI) Differential Revision: https://phab.mercurial-scm.org/D6620

crecord: fix if -> elif when handling key presses This shouldn't actually change any behavior, I only noticed it since I started using KEY_UP in tests, and it was complaining when it got down to the ^L handler that initscr hadn't been called yet. Differential Revision: https://phab.mercurial-scm.org/D6619

crecord: add "x" alias for space, remove test-only "TOGGLE" alias Differential Revision: https://phab.mercurial-scm.org/D6618

crecord: stop using test-only "X" as alternative for "c" Differential Revision: https://phab.mercurial-scm.org/D6617

graft: moved abortgraft and readgraft to cmdutil This patch moves `abortgraft` and `readgraft` to `cmdutil`. Various callers are updated accordingly. This is done because these serve as ulitlity functions for command `graft` and so that new functions regarding graft can be built from them. Differential Revision: https://phab.mercurial-scm.org/D6608

cleanup: use named constants for second arg to .seek() Differential Revision: https://phab.mercurial-scm.org/D6556

patch: use a short, fixed-size message for last line of prompt (issue6158) See issue6158 and the previous commit for examples of what might go wrong if we have some combinations of readline version and terminal and need to wrap the line. Briefly: readline may not display the beginning of the last line of the prompt, or it may print over it with the end of the prompt, making it difficult for users to know what's going on. Differential Revision: https://phab.mercurial-scm.org/D6563

filemerge: make last line of prompts <40 english chars (issue6158) I've chosen <40 as the target so that other languages that may have a 2x blowup in character count can still have a chance to fit into an 80 column screen. Previously, we would show a prompt like: ``` keep (l)ocal [dest], take (o)ther [source], or leave (u)nresolved for some/potentially/really/long/path? ``` On at least some systems, if readline was in use then the last line of the prompt would be wrapped strangely if it couldn't fit entirely on one line. This strange wrapping may be just a carriage return without a line feed, overwriting the beginning of the line; example (100 columns wide, 65 character filename, and yes there's 10 spaces on the end, I assume this is to handle the user inputting longest word we provide as an option, "unresolved"): ``` ng/dir/name/that/does/not/work/well/with/readline/file.txt? ave (u)nresolved for some/lon ``` In some cases it may partially wrap onto the next line, but still be missing earlier parts in the line, such as below (60 columns wide, 65 character filename): ``` rev], or leave (u)nresolved for some/long/dir/name/that/do s/not/work/well/with/readline/file.txt? ``` With this fix, this looks like this on a 60 column screen: ``` tool vim_with_markers (for pattern some/long/dir/name/that/d oes/not/work/well/with/readline/file.txt) can't handle binar y tool meld can't handle binary tool vim_with_markers can't handle binary tool internal:merge3 can't handle binary tool merge can't handle binary no tool found to merge some/long/dir/name/that/does/not/work /well/with/readline/file.txt file 'some/long/dir/name/that/does/not/work/well/with/readli ne/file.txt' needs to be resolved. You can keep (l)ocal [working copy], take (o)ther [merge rev ], or leave (u)nresolved. What do you want to do? ``` Differential Revision: https://phab.mercurial-scm.org/D6562

Added signature for changeset 97ada9b8d51b

Added tag 5.0.2 for changeset 97ada9b8d51b

posix: always seek to EOF when opening a file in append mode Python 3 already does this, so skip it there. Consider the program: #include <stdio.h> int main() { FILE *f = fopen("narf", "w"); fprintf(f, "narf\n"); fclose(f); f = fopen("narf", "a"); printf("%ld\n", ftell(f)); fprintf(f, "troz\n"); printf("%ld\n", ftell(f)); return 0; } on macOS, FreeBSD, and Linux with glibc, this program prints 5 10 but on musl libc (Alpine Linux and probably others) this prints 0 10 By my reading of https://pubs.opengroup.org/onlinepubs/009695399/functions/fopen.html this is technically correct, specifically: > Opening a file with append mode (a as the first character in the > mode argument) shall cause all subsequent writes to the file to be > forced to the then current end-of-file, regardless of intervening > calls to fseek(). in other words, the file position doesn't really matter in append-mode files, and we can't depend on it being at all meaningful unless we perform a seek() before tell() after open(..., 'a'). Experimentally after a .write() we can do a .tell() and it'll always be reasonable, but I'm unclear from reading the specification if that's a smart thing to rely on. This matches what we do on Windows and what Python 3 does for free, so let's just be consistent. Thanks to Yuya for the idea.

tweakdefaults: make hg resolve require --re-merge flag to re-merge Pulkit suggested it in https://phab.mercurial-scm.org/D4379, and a discussion with Octobus people reminded me that people still use the error-prone default behavior of `hg resolve`. Differential Revision: https://phab.mercurial-scm.org/D6610

unshelve: rename _dounshelve() to dounshelve() This is a follow-up patch to 3de4f17f4824. Differential Revision: https://phab.mercurial-scm.org/D6605

rust: remove Deref in favor of explicit methods Differential Revision: https://phab.mercurial-scm.org/D6593

rust: simplify overly complicated expression Differential Revision: https://phab.mercurial-scm.org/D6592

rust: run rfmt on all hg-core/hg-cpython code Differential Revision: https://phab.mercurial-scm.org/D6591

move: --force flag forcibly moves, not copies

copy: correct synopsis by making SOURCE a required argument

debugrevlog: fix average size computation for empty data (issue6167) If the file has no full snapshot (eg: was always empty), `hg debugrevlog` would fails when trying to compute their average size.

changelog: fix handling of empty copy entries in changeset Before this patch, when an empty value was found in the changeset, we would get a ValueError, which would result in None being returned for addedfiles/removedfiles and p1copies/p2copies. That made 278dcb24e535 (copies: write empty entries in changeset when also writing to filelog, 2019-04-23) ineffective at helping the read path not look for copies in the filelogs. Differential Revision: https://phab.mercurial-scm.org/D6595

relnotes: document the new --force-close-branch flag Differential Revision: https://phab.mercurial-scm.org/D6590

py3: hack around inconsistency of type of name passed to DNSQuestion I don't like this patch but this is the easiest way I could fix it. There are some callers which pass name which is bytes, some pass name which is str. I just encode() that if that's str. This does makes test-paths.t pass, but I am not confident whether the whole of zeroconf will work on py3 or not. Differential Revision: https://phab.mercurial-scm.org/D6511

py3: add r'' prefixes and do ('%d' % int) instead of str(int) This addresses more failures related to zeroconf on py3. Differential Revision: https://phab.mercurial-scm.org/D6510

zeroconf: port to Python 3 Since we're using the source transformer on Python 3, calls into Zeroconf and return values from it are generally bytes. But various socket functions require str on Python 3. This commit contains enough changes to coerce test-paths.t into passing on Python 3. I suspect there are still a handful of bugs on Python 3. But the tests do pass. Differential Revision: https://phab.mercurial-scm.org/D5805

copies: return only path from _tracefile() since that's all caller needs Differential Revision: https://phab.mercurial-scm.org/D6587

extensions: add shelve to _builtin This is a follow-up patch to 3de4f17f4824. This adds `shelve` to `extensions._builtin` so that the shelve extension is silently ignored. Differential Revision: https://phab.mercurial-scm.org/D6589

merge with stable

bookmarks: backout the attempt to fix the delete race This backs out 044045dce23a because it broke a bunch of tests on Windows. Yuya's theory is that we still rely on in-memory changelog data to be flushed out of the transaction.

automv: access status fields by name, not index Differential Revision: https://phab.mercurial-scm.org/D6586

automv: use public API for getting copies Differential Revision: https://phab.mercurial-scm.org/D6585

commit: add --force-close-branch flag to close a non-head changeset While closing branch from a changeset which is not a branch head current implementation abort this action in every case but, there can be the situations where the changeset is not a local head but could be a remote head. This patch adds the functionality to bypass the "abort: can only close branch heads" by introducing --force-close-branch flag. Test case changes demonstrate the new functionality added. Differential Revision: https://phab.mercurial-scm.org/D6490

shelve: move shelve extension to core Until now, `shelve` was bootstrapped as an extension. This patch adds `shelve` on core. Differential Revision: https://phab.mercurial-scm.org/D6553

shelve: remove rebase.clearstatus() This is a follow-up patch to c829749e7639. After this, shelve will be no longer dependent on rebase. This removes rebase.clearstatus() from shelve. Differential Revision: https://phab.mercurial-scm.org/D6584

shelve: removed redundant merge detection method Differential Revision: https://phab.mercurial-scm.org/D6547

rust-dirstate: call new "dirs" rust implementation from Python This is a simple module attribute replacement, will take precedence over the Python and C implementations. Differential Revision: https://phab.mercurial-scm.org/D6395

rust-dirstate: add "dirs" rust-cpython binding There is an obvious performance and memory issue with those bindings on larger repos as it copies and allocates everything at once, round-trip. Like in the previous patch series, this is only temporary and will only get better once we don't have large data structures going to and from Python. Differential Revision: https://phab.mercurial-scm.org/D6394

rust-dirstate: add "dirs" Rust implementation Following the work done in d1786c1d34fa and working towards the goal of a complete Rust implementation of the dirstate, this rewrites the `dirs` class. There is already a C implementation, which relies heavily on CPython hacks and protocol violations for performance, so I don't expect this to perform as well for now, as this is very straight-forward code. The immediate benefits are new high-level documentation and some unit tests. Differential Revision: https://phab.mercurial-scm.org/D6393

relnotes: added description about statemod._statecheck Differential Revision: https://phab.mercurial-scm.org/D6557

statecheck: shifted defaults to addunfinished() This shifts the definitions and defaults of `_statecheck()` class to `addunfinished()` registration method. Differential Revision: https://phab.mercurial-scm.org/D6583

statecheck: added support for cmdutil.afterresolvedstates This removes `afterresolvedstates` from `cmdutil` and adds support for it in `_statecheck` class. A new flag `continueflag` is added to the class to check whether an operation supports `--continue` option or not. Tests remain unchanged. Differential Revision: https://phab.mercurial-scm.org/D6551

statecheck: added support for STATES This removes `STATES` from `state.py` and adds support to `statecheck` class to handle its features. `getrepostate()` function is modified accordingly. This adds a method 'cmdutil.addunfinished()' for appending to the unfinishedstate list so as to keep 'merge' and 'bisect' at the last. This also makes two separate message formats for `checkunfinished()` and `getrepostate()` as there were previously present. Results of test changed are shown. Differential Revision: https://phab.mercurial-scm.org/D6503

state: moved cmdutil.STATES and utilities to state.py This commit moves `cmdutil.STATES` and adjoining functions to `state.py`. The existing users are updated accordingly. Tests remain unchanged. Differential Revision: https://phab.mercurial-scm.org/D6502

state: created new class statecheck to handle unfinishedstates For the purpose of handling states for various multistep operations like `hg graft`, `hg histedit`, `hg bisect` et al a new class called statecheck is created .This will help in having a unified approach towards these commands and handle them with ease. The class takes in 4 basic arguments which include the name of the command, the name of the state file associated with it , clearable flag , allowcommit flag. This also also adds the support of`checkunfinished()` and `clearunfinished()` to the class. Tests remain unchanged. Differential Revision: https://phab.mercurial-scm.org/D6501

states: moved cmdutil.unfinishedstates to state.py This moves `cmdutil.unfinishedstates`, `checkunfinished()`,`clearunfinished()` to `state.py`. the already existing users of this module are updated accordingly. Test results remain unchanged. Differential Revision: https://phab.mercurial-scm.org/D6484