templater: make open_template() read from resources if in frozen binary This takes the number of failing tests with PyOxidizer from 87 to 72. Differential Revision: https://phab.mercurial-scm.org/D8894

templater: pass opened file-like object to templatespec I think I said earlier that I planned to create a special templatespec variant for built-in templates. That was true (I planned that), but I ended up (in this patch) just adding a file-like object to the `mapfile_templatespec()` variant instead. Differential Revision: https://phab.mercurial-scm.org/D8893

templater: replace templatepath() with function that also opens the file For frozen binaries, such as those created by PyOxidizer, I plan to make it so the templatespec can keep an opened file/resource to read from instead of needing a file path. Having `templatepath()` return an opened file should help with that. At this point, it's just a wasteful extra opening of mapfiles that we'll open again later. I'll update the read-side next so it reads from the file-like object without opening the file again. Differential Revision: https://phab.mercurial-scm.org/D8892

templater: start passing resource to read from into _readmapfile() This patch makes it so we pass in a file-like resource to read from instead of having `_readmapfile()` open the file. This is one more step towards making `_readmapfile()` able to read resources opened by from `importlib.resources`. We still need to pass in the mapfile path because it's used for loading dependent mapfiles from `%include` and `__base__`, and it's also used for giving the user better error messages. Besides that, one can safely call `_readmapfile()` with any file-like resource after this patch. Differential Revision: https://phab.mercurial-scm.org/D8891

templater: move stylemap() to hgweb_mod, since that's its only user `stylemap()` even has an error message that mentions "hgweb templates", so it seems that it's meant specifically for hgweb. Differential Revision: https://phab.mercurial-scm.org/D8890

hgweb: simplify staticfile() now that we always pass it a single directory I didn't realize this further simplifications enabled by D8786 until now. Differential Revision: https://phab.mercurial-scm.org/D8874

packaging: include templates with their package as key in package_data This is similar to an earlier patch in this series. It seems more correct to use `mercurial.templates.coal` etc as keys in the `package_data` dict now that those modules are packages. Differential Revision: https://phab.mercurial-scm.org/D8858

packaging: mark mercurial.templates and subdirs as packages We need these packages to be installed so PyOxidizer picks them up. Differential Revision: https://phab.mercurial-scm.org/D8855

templates: add __init__.py files to templates/ dirs This is necessary for them to be loaded with `importlib.resources`, which we want to do for PyOxidizer and similar. `importlib.resources` cannot read resources from submodules (`resources.open_binary('mercurial.templates', 'coal/map')` is not valid), so we need one `__init__.py` per directory. Differential Revision: https://phab.mercurial-scm.org/D8854

merge with stable

localrepo: abort creating a shared repo if the source does not have store We cannot create a shared repository without a store IIUC. Let's abort in such cases. Differential Revision: https://phab.mercurial-scm.org/D8772

localrepo: only use 'bookmarksinstore' requirement if we have 'store' This adds check that whether we have the 'store' requirement or not. If we don't have that, we skip adding the 'bookmarksinstore' requirement and warn user about it. Differential Revision: https://phab.mercurial-scm.org/D8771

mergeresult: make actionmapping a dict of dict instead of dict of lists This makes deleting a specific filename entry faster and easier. Differential Revision: https://phab.mercurial-scm.org/D8837

largefiles: introduce a constant for 'lfmr' action It's better to use a dedicated constant instead of a string which makes pretty less sense. Differential Revision: https://phab.mercurial-scm.org/D8836

largefiles: override merge.emptyactions() to include `lfmr` I found it weird that we were not already doing this. I encountered this while using `emptyactions()` in mergeresult() class. Differential Revision: https://phab.mercurial-scm.org/D8835

merge: unify logic of couple of if-else's in manifestmerge() Right now manifestmerge() contains very nested if-else conditions and it's not easy to understand what is happening. I was looking for easy unifications and found these two. Differential Revision: https://phab.mercurial-scm.org/D8834

sparse: add comment for an if condition which I tried to refactor I tried to refactor this if condition and make it part of the if-else above but tests failed. I decided to add a comment about the check we are doing and why it's a separate if. Differential Revision: https://phab.mercurial-scm.org/D8833

mergeactions: use action constants instead of string values Having constants inplace of strings like 'c', 'cm' etc. makes it easier to understand the code. Differential Revision: https://phab.mercurial-scm.org/D8832

merge: use the new action based mapping introduced in mergeresult obj Before this patch, we have good number of instances of following types: ``` for f, (m, args, msg) in mresult.actions: if m == ACTION_X: do_something ``` We iterate over the whole list and then filter for a certain action. Previous patch introduced a action based mapping in mergeresult object. The above code now looks like: ``` for f, args, msg in mresult.getactions([ACTION_X, ...]): do_something ``` Differential Revision: https://phab.mercurial-scm.org/D8831

mergeresult: introduce action -> (filename, data, msg) mapping and related API Good number of places in code, we iterate over the actions dict which has filename as keys and filter based on the action. This patch introduced another mapping which has action as key. This will help in refactoring the code much more in upcoming patch. Differential Revision: https://phab.mercurial-scm.org/D8830

mergeresult: rename _actions to _filemapping This is done because we will be introducing another dict which introduces the same information but with action name as key. Differential Revision: https://phab.mercurial-scm.org/D8829

sparse: pass mergeresult obj in sparse.filterupdatesactions() (API) Not able to see much which can be improved in this function by passing in mergeresult object but for API consistency and no function directly touching actions dict, it sounds like a good idea. Differential Revision: https://phab.mercurial-scm.org/D8828

merge: filter actions before calling _resolvetrivial() In d49e490a9e85252886fd43258803bcad4fc88edb I made _resolvetrivial() to be called after upadting the sparse checkout. Looking at the code now, it seems to that me there is no need to even run _resolvetrivial() on actions which are filtered away. So let's update the actions before passing them into _resolvetrivial(). Differential Revision: https://phab.mercurial-scm.org/D8827

merge: introduce mergeresult.updateactions() and use it We don't want direct editing and access of mergeresult._actions because soon we will like to maintain data in other structures also. Differential Revision: https://phab.mercurial-scm.org/D8826

merge: pass mergeresult instead of actions in _checkunknownfiles() (API) Differential Revision: https://phab.mercurial-scm.org/D8825

merge: pass mergeresult obj instead of actions dict in _resolvetrivial() Differential Revision: https://phab.mercurial-scm.org/D8824

merge: pass mergeresult obj instead of actions in _filternarrowactions() We want to use rich mergeresult object and it's APIs instead of handling a dictionary. Differential Revision: https://phab.mercurial-scm.org/D8823

merge: pass mergeresult in checkpassconflicts() instead of actions (API) This is a part of series which aims to use mergeresult obj instead of an action dictionary. Differential Revision: https://phab.mercurial-scm.org/D8822

merge: add removefile() to mergeresult object There are cases where some further calculation makes the file not needing to be merged anymore and hence needs to be dropped in mergeresult object. This adds a function for that. Differential Revision: https://phab.mercurial-scm.org/D8821

merge: introduce mergeresult.addfile() and use it We want to use mergeresult object at more and more places instead of this actions dict to simplify code and further add new APIs to mergeresult object. This patch introduces `addfile()` which adds a new file to the internal actions dict for now. Differential Revision: https://phab.mercurial-scm.org/D8820

merge: make mergeresult constructor initialize empty object In future patches, we will be going to update mergeresult object instead of building an actions dict and then setting it in the object. Differential Revision: https://phab.mercurial-scm.org/D8819

merge: improve documentation of fbid dict used for merge bid I improved the comments explaning what the dict contains meanwhile organizing the comment structure which prevents some confusion. Due to formatting issues, the empty dict was wrapped in `()` which might decieve in thinking that it's a tuple of dict until you decide to find a comma. Differential Revision: https://phab.mercurial-scm.org/D8818

merge: move conversion of file-key dict to action-key dict in mergeresult Initially the actions dict which we get has file has keys, but later we want a dict which has actions as keys. This patch moves code computing that to mergeresult class as that's where it should be anyway. Differential Revision: https://phab.mercurial-scm.org/D8817

merge: introduce hasconflicts() on mergeresult object This and upcoming patches will improve the mergeresult object making it more powerful and provide clean APIs for various things. Doing this will clean up the core merge code which is present in `update()` a bit. Differential Revision: https://phab.mercurial-scm.org/D8816

merge: remove no longer required ACTION_GET_OTHER_AND_STORE In 1b8fd4af33189c84feadb47c74d659ec31cde3b9 I (ab)used merge actions to pass info from manifestmerge() to applyupdates() and store info in mergestate. In previous patches, we introduced a separate return value from manifestmerge() and calculateupdates() and an argument to applyupdates() which achieved the same thing. Let's remove this no longer required messy code. Differential Revision: https://phab.mercurial-scm.org/D8744

merge: pass commitinfo to applyupdates() and get it stored in mergestate This patch passes the commitinfo calulcated in manifestmerge() to applyupdates() so that it can be read there and stored in mergestate. On commit, we can read mergestate for such information and act accordingly. This patch also makes ACTION_GET_OTHER_AND_STORE not required anymore. Next patch will remove the messy code surrounding it. Differential Revision: https://phab.mercurial-scm.org/D8743

merge: introduce 'commitinfo' in mergeresult commitinfo will be used to pass information which is required on commit phase from the merge phase. One common example is, merge chooses filenode from second parent and we need to tell commit to choose that. Right now this one and related cases are not very neatly implement and there is no clear line on how to pass on such information. Upcoming patches will try to work on in this area and make things easier. Differential Revision: https://phab.mercurial-scm.org/D8742

merge: return a mergeresult obj from manifestmerge(), calculateupdates() (API) Earlier, manifestmerge() and calculateupdates() returns a tuple of three things. I wanted to add one more thing to return value. Introducing a special class which represents results of a merge will help understand better and also ease adding new return values. Differential Revision: https://phab.mercurial-scm.org/D8799

Added signature for changeset 7fc3c5fbc65f

Added tag 5.5 for changeset 7fc3c5fbc65f

mergestate: fix BC breakage introduced because of removal of a merge record In fcd0cff3400a I removed the usage of RECORD_RESOLVED_OTHER. However I also removed the reading support, hence if there is any user who runs into merge conflict with older version of hg, upgrades hg and then tries to read mergestate, they will end up with an MergeRecordUnsupportedError.

packaging: delete unnecessary updating of `dirs` list The `dirs` list is not used and it seems it also wasn't used when this code was added in 395b0e132836 (Don't copy hidden files/directories during `setup.py install`, 2009-07-14). Differential Revision: https://phab.mercurial-scm.org/D8857

packaging: make "mercurial.defaultrc" a key in package_data Before this patch, we had a `mercurial` key with a `defaultrc/*.rc` value. It seems more correct to have a `mercurial.defaultrc` key with a `*.rc` value since `mercurial.defaultrc` it became a pacakge in 1390bb81163e (help: get helptext/ data from `resources` module if available, 2019-12-12). Differential Revision: https://phab.mercurial-scm.org/D8856

templatespec: use new factory functions in hooklib Differential Revision: https://phab.mercurial-scm.org/D8853

templatespec: use new factory functions in logcmdutil Differential Revision: https://phab.mercurial-scm.org/D8848

templatespec: move check for non-unicode to lower-level function Now that we have the factory functions, it makes sense to have the check there. Differential Revision: https://phab.mercurial-scm.org/D8847

templatespec: logcmdutil.templatespec() gets either template or mapfile The callers of the function already never pass (non-`None`) values for both, so let's check that and call the new factory functions. Differential Revision: https://phab.mercurial-scm.org/D8846

templatespec: create a factory function for each type there is Most of the arguments to the `templatespec` constructor are mutually exclusive, so each combination creates a different type of templatespec. Let's clarify that by creating factory functions. I've left the callers in `logcmdutil` unchanged for now because they are more complex and `logcmdutil.templatespec()` is slightly higher level in that it is specific to changesets. My larger goal is to add support frozen binaries (specifically PyOxidizer) by adding a specific type of `templatespec` for built-in templates. That will get its own factory function. Differential Revision: https://phab.mercurial-scm.org/D8845

templater: stop accepting a single style to stylemap() The code seems to have been for compatibility across d3dbdca92458 (hgweb: don't choke when an inexistent style is requested (issue1901), 2009-11-12). Differential Revision: https://phab.mercurial-scm.org/D8844

formatter: inline a variable assigned from `templater.templater.frommapfile` The variable doesn't get reused and it doesn't help formatting, so I don't see any reason for it. Differential Revision: https://phab.mercurial-scm.org/D8807

templater: don't normalize path separators to '/' when interacting with OS `_readmapfile()` is about reading a map file from the file system, so we shouldn't use our `util.normpath()`, which also normalizes `os.sep` to '/'. Differential Revision: https://phab.mercurial-scm.org/D8806

formatter: remove now-unnecessary check for file-ness `templater.templatepath()` now returns non-`None` only for files, so the caller doesn't have to check. Differential Revision: https://phab.mercurial-scm.org/D8805

templater: make templatepath() not return directory paths The previous patch added a test showing an unusal error message. This make it more like other error messages. Differential Revision: https://phab.mercurial-scm.org/D8804

tests: show unusual error message for `hg log --style coal` It turns out that we show the full path when the given style name matches a subdirectory of `mercurial/templates/`. Differential Revision: https://phab.mercurial-scm.org/D8803

config: remove now-unused `abs` argument from `include` callback Differential Revision: https://phab.mercurial-scm.org/D8796

config: re-calculate absolute %include path in `include` callback This removes the last user of the `abs` argument for the `include` callback. The next patch will remove the argument. Differential Revision: https://phab.mercurial-scm.org/D8795

subrepoutil: use relative path for looking up config `%include`s The code was already working with relative paths in practice, since it passed in a (repo-)relative path into its local `read()` function. So all that this patch actually does is to switch to rename variables so we use the same path by a different name. This gets us closer to removing the "absolute" path from the `include` callback. Differential Revision: https://phab.mercurial-scm.org/D8794

config: remove now-unused support for "includepaths" This effectively undoes 081b08e4ea13 (templater: look for mapfiles in template paths, 2015-05-15). Differential Revision: https://phab.mercurial-scm.org/D8793

dispatch: adjust ui.flush() timing to stabilize test-blackbox.t Without this change, dispatch.dispatch() could return before flushing all stdio data. This means chg stdio would print data after receiving the result code. --- tests/test-blackbox.t +++ tests/test-blackbox.t.err @@ -354,13 +354,13 @@ > EOF $ hg log --debug removing $TESTTMP/gone/.hg - warning: cannot write to blackbox.log: $ENOENT$ (no-windows !) warning: cannot write to blackbox.log: $TESTTMP/gone/.hg/blackbox.log: $ENOTDIR$ (windows !) $ cd .. blackbox should disable itself if track is empty $ hg --config blackbox.track= init nothing_tracked + warning: cannot write to blackbox.log: $ENOENT$ $ cd nothing_tracked $ cat >> .hg/hgrc << EOF > [blackbox]

clonebundles: document REQUIREDRAM key This is a follow-up to 72feaeb510b3, which introduced the feature. The key should be documented as part of the format specification inside the extension docstring. Differential Revision: https://phab.mercurial-scm.org/D8838

commitctx: gather more code dealing with copy-in-extra Now that we have a function that deal with the copy-in-extra special case, we can gather more code meant to deal with this special case. Making the rest of the code simpler.

commitctx: rename files to touched in a couple of place This is a clearer word that we will use increasingly over this series. It also make the old variable name available to another usage :-)

commitctx: extract copy information encoding into extra into commit.py The encoding of copy information into extra has multiple subcases and become quite complicated (eg: empty list can be explicitly or implicitly stored for example). In addition, it is niche experimental feature since as it affect the hash, it is only suitable for user who don't mercurial for storage server side (ie: Google). Having this complexity part of the changelog will get in the way of further cleanup. We could have to either move more of that logic into the changelog or to move or extract more of the logic at the higher level. We take the second approach and start gather logic in dedicated function in commit.py.

commitctx: create the new extra dict on its own line A trivial move to make the next changeset easier to read.

commitctx: explicitly pass `manifest` to _commit_manifest As pointed out by Yuya Nishihara.

phabricator: unconditionally pop `test_vcr` to fix debugcallconduit 11592ce6a711 / D8525 accidentally broke debugcallconduit in non-test scenarios because it stopped popping `test_vcr` from `kwargs` unconditionally, so when `--test-vcr` isn't set the empty string still gets passed down as the value of `test_vcr` in `kwargs`. However unlike all the other commands debugcallconduit doesn't have an `**opts` argument to receive it, so it aborts because of invalid arguments. Differential Revision: https://phab.mercurial-scm.org/D8852

phabricator: demonstrate debugcallconduit being broken without --test-vcr This was accidentally broken by 11592ce6a711 / D8525 Differential Revision: https://phab.mercurial-scm.org/D8851

cleanup: fix bad formatting of state.py from D8811 `test-check-format.t` was failing for me. Do I just have the wrong version? Differential Revision: https://phab.mercurial-scm.org/D8841

dirstate: restore original estimation and update comment The former comment didn't reflect the content of the dirstate entries, the two nodes are a fixed header in the file and not per-entry. Split the documented entry into the path part and the fixed header. The heuristic itself is still valid, e.g. for the NetBSD src tree a maximum path size of 142 and an average of 49, resulting in 66 bytes per entry on average. Differential Revision: https://phab.mercurial-scm.org/D8850

merge stable in default

dirstate: revert change to Rust binding The Rust binding uses its own class and is not derived from the regular implementation. As such, it didn't get _nodelen. Differential Revision: https://phab.mercurial-scm.org/D8849

relnotes: copy "next" to "5.5" and clear "next" The same procedure as every year^Wcycle. Differential Revision: https://phab.mercurial-scm.org/D8839

commitctx: extract all the file preparation logic in a new function Before we actually start to create a new commit we have a large block of logic that do the necessary file and manifest commit and that determine which files are been affected by the commit (and how). This is a complex process on its own. It return a "simple" output that can be fed to the next step. The output itself is not that simple as we return a lot of individual items (files, added, removed, ...). My next step (and actual goal for this cleanup) will be to simplify the return by returning a richer object that will be more suited for the variation of data we want to store. After this changeset the `commitctx` is a collection of smaller function with limited scope. The largest one is still `_filecommit` without about 100 lines of code.

commitctx: gather more preparation code within the lock context This is a small change that exist mostly for clarification. I am about to move a large amount of code in its own function. having all that code next to each other will make the next changeset clearer.

commitctx: move a special case about files earlier Same logic as a changeset a bit earlier, the `writefilecopymeta` section is more a post processing details so we move the conditional about `files` value closer to the rest of the code computing `files` value.

commitctx: extract all the manual logic to process the files That branch of the if is significantly more complicated than the other two. Moving it to its own function make it simple to keep the scope limited and to read to the higher level function.

commitctx: treat `filesadded` more like `filesremoved` Accumulating the filename in a list will have a negligible cost and deal with the list of added files like the other ones will make is code cleaning simpler. The two variable with very close name is not great, but my plan is to split most of the code in a separated function which will make the "problem" go away by itself.

commitctx: move `writechangesetcopy` business at the end a code section This code is to handle a specific subcase so we move it a the end. This allow to gather the rest of the "core" code closer to the related logic.

commitctx: move copy meta config reading in a dedicated function The logic is non trivial, make it contained in a function is clearer. It also unlock easy re-use of that logic without having the pass the value around.

commitctx: no longer use the `writecopiesto` variable in the function The `writefilecopymeta` variable already carry the same information, so we can use `writefilecopymeta` in the one conditional where `writecopiesto` was used.

commitctx: extract the function that commit a new manifest The logic is large enough and isolated enough to be extracted, this reduce the size of the main function, making it simpler to follow.

commitctx: stop using weakref proxy for transaction This weakref proxy was introduced in 2007 by 30d4d8985dd8. If I understand it correctly, the logic at that time was relying on the transaction destructor, triggered at garbage collection time to rollback failed transaction. passing the object to sub function directly mean it would live in the function scope and be trapped in the traceback on exception, leading to the transaction rollback too late in some case. Modern transaction usage use explicit opening and closing of transaction and no longer rely on some internal reference counting details. So this weakref proxy is no longer necessary. Absolutely no test are affected when we drop it.

rebase: fix regression in file change detection introduced by 0ecb3b11fcad Before 0ecb3b11fcad, `wctx._compact()`, was called by `wctx.nofilechanges()` as a side effect. Later, it turned out that this side effect is needed to correctly detect which files changed. See https://phab.mercurial-scm.org/D8733#131949 for the history. The problem could also be triggered by running `tests/test-rebase-parameters.t` with `--extra-config-opt rebase.experimental.inmemory=1`. Differential Revision: https://phab.mercurial-scm.org/D8843

context: re-add `overlayworkingctx._compact()` removed in 6a5dcd754842 This partially backs out 6a5dcd754842. The method was and is unused, but a call to it is introduced in the next patch. Differential Revision: https://phab.mercurial-scm.org/D8842

push: test for checks preventing publishing obsolete changeset The main difference from the previous test is how the changeset was obsoleted. In this case it is an amend so publishing the orphan would also create phase divergence. This must not go unnoticed.

push: test for checks preventing publishing obsolete changeset This introduce a simple example, more are coming. See inline documentation for details.

push: another test for checks preventing pushing orphaness to a server In this one, orphan was create with and amend instead of a prune.

push: test the checks preventing pushing orphaness to a server This is introduce a simple example, more are coming. See inline documentation for details.

commitctx: document the None return for "touched" value

tests: add tests trying to use dir as style, as %include, and as __base__ Differential Revision: https://phab.mercurial-scm.org/D8800

tests: fix mistaken copy&paste from commit 4489e9a22763 Differential Revision: https://phab.mercurial-scm.org/D8802

manifest: kill one more instance of the old merge hash hack Differential Revision: https://phab.mercurial-scm.org/D8766

dirstate: isolate node len dependency for the pure version When switching to a 256bit hash function, this still needs adjustment, but concentrates the change in one place. Differential Revision: https://phab.mercurial-scm.org/D8815

fix: update documentation to reflect preference for --source over --rev I should have updated the documentation in 5205b46bd887 (fix: add a -s option to format a revision and its descendants, 2020-03-13) and/or a6ef1e8e2f6d (fix: mark -r as advanced, 2020-03-13)... Differential Revision: https://phab.mercurial-scm.org/D8808

tests: make check-py3-compat.py actually load the specified files correctly For most uses, this change is essentially a no-op, as this script is generally only run by test-check-py3-compat.t, which will already put `$TESTDIR/..` in `$PYTHONPATH`. When running outside of tests, however, `$PYTHONPATH` is likely not set, causing check-py3-compat.py to parse the file from the repo, but then import the installed version, and raise any errors about the installed version, not the one currently in the repo. Additionally, this helps users (like me) who have a strange set up where their home directory (and thus their hg repos) happen to be in a subdirectory of sys.prefix (which is /usr on my system). Since the '.' entry added to sys.path takes precedence over the absolute path of `$TESTDIR/..` in `$PYTHONPATH`, the path to the modules that it imports (and that show up in any stack trace) are *relative*, meaning that we don't detect them as starting with `sys.prefix`. Sample non-test invocation, and the difference this change makes (the path for 'error at <path>:<line>' is correct now):: Before: ``` $ python3 contrib/check-py3-compat.py mercurial/win*.py mercurial/win32.py: error importing: <ValueError> _type_ 'v' not supported (error at check-py3-compat.py:65) mercurial/windows.py: error importing: <ModuleNotFoundError> No module named 'msvcrt' (error at check-py3-compat.py:65) ``` After: ``` $ python3 contrib/check-py3-compat.py mercurial/win*.py mercurial/win32.py: error importing: <ValueError> _type_ 'v' not supported (error at win32.py:11) mercurial/windows.py: error importing: <ModuleNotFoundError> No module named 'msvcrt' (error at windows.py:12) ``` Differential Revision: https://phab.mercurial-scm.org/D8814

tests: virtualenv is only used on py2, rename and conditionalize If I have I have the Debian `python3-virtualenv` package installed on my machine, the import succeeds but then I receive an AttributeError because the package is essentially completely different between py2 and py3, and test-hghave fails. Differential Revision: https://phab.mercurial-scm.org/D8812

morestatus: mention --stop even if not using --verbose Differential Revision: https://phab.mercurial-scm.org/D8811

exchange: backout changeset c26335fa4225 Changeset c26335fa4225 has good intends but introduce significant behavior regressions for multiple important cases. In short there are many case where push would have caught instability creation/propagation that are no longer covered. These behavior have been covered for many years and even if some related case are not currently caught, the covered one should not be regressed. The next four changesets introduce tests for some of these cases. However we could produce many more tests cases since the area is wide and they are many possible combination. (And we should cover them when getting back to this issue) Since 5.5 is one week away, the most reasonable approach seems to back this out while we devise a new way to move forward that preserve the current behavior, catch more issues and also improves the situation that c26335fa4225 target. In addition to the behavior change, c26335fa4225 also introduced output changes. These output changes does not requires a backout per-se, but are part of the same changeset. However they come with a couple of issues that also requires attention: 1) the bulk of the error message have been shoehorned into a multiple line abort message. This seems quite different from what we usually do. The abort message should be a compact and efficient message, with extra details being issued as normal error output beforehand. (with --verbose/--quiet) support. 2) the current output is unbounded, so if there is many (tens, hundreds, thousands, …) of unstable/obsolete changeset involved in the push, the output can quickly become a scary and un-usuable wall of text. So we need some limitation here (same as we have with the remote head list that says A, B , C and # others).

templater: handle None returned from templatedir() My recent 91aa9bba3dc9 (templater: make templatepaths() return a single path, or None, 2020-07-21) didn't account for the fact that `templatedir()` returns `None` in frozen binaries. That is ironic, since the reason I'm working on this is to add support for built-in mapfiles in frozen binaries. This patch updates the callers to handle the `None` case. It's somewhat ugly, but I will have to revisit this soon anyway, since my goal is to make all callers handle that case by trying to read the map file using the resources API instead. Differential Revision: https://phab.mercurial-scm.org/D8810

tests: glob 'mercurial.error' in test-phases.t On python 2 with chg, `mercurial.error` is omitted while printing error. On other cases it's there in error message. I did tried to understand what might be the cause was unable to find one on quick skim through the code.

infinitepush: remove unused import to tempfile Spotted by test-check-pyflakes.t

templater: do search for include of unqualified builtin outside of config code Commit 081b08e4ea13 (templater: look for mapfiles in template paths, 2015-05-15) added support for using things like `%include map-cmdline.default` to include built-in map files without using a valid path to them. This patch rewrites that support by moving it into `_readmapfile()` so it can later be adapted for reading from a non-file resource. Differential Revision: https://phab.mercurial-scm.org/D8792

templater: switch to lower-level config.parse() in _readmapfile() I hope to modify this code to also work with resources loaded from memory (for PyOxidizer support). For that, we'll need to handle the lookup of relative `%include` path (not joined with the base directory of the containing file). This patch prepares for that by using `config.parse()` instead of `config.read()`, since the latter expects a file in the file system. As it happens, this change also lets us clean up the `config` class to not need the `_includepaths` field. That will happen next. Differential Revision: https://phab.mercurial-scm.org/D8791

config: pass both relative and absolute paths to `include` callback The `include` callback is responsible for loading configs from `%include` statements. The callback currently gets passed the absolute path [1] to the config to read. That is created by joining the dirname of the file that contains the `%include` statement. For PyOxidizer support, I'm trying to reduce dependence on paths. This patch helps with that by passing the relative path found in the `%include` statement (but with username expansion, etc.) to the `include` callback. It also turns out that the existing callers can easily adapt to using the relative path. Coming patches will clean that up and then we'll remove the absolute path from the callback. [1] The "absolute path" bit is a bit of a lie -- it's going to be an absolute path if the path that was passed into `config.parse()` was absolute. Differential Revision: https://phab.mercurial-scm.org/D8790

tests: add test for bad template %include and __base__ It doesn't seem like we had any tests for `%include non-existent` and `__base__ = non-existent`. The latter raises an error while the former ignores the include. We should probably also make the former an error. Differential Revision: https://phab.mercurial-scm.org/D8798

tests: add test for unqualified include of a built-in template map The feature was added in 081b08e4ea13 (templater: look for mapfiles in template paths, 2015-05-15), but no test case was added. Differential Revision: https://phab.mercurial-scm.org/D8797

merge with stable

commitctx: extract _filecommit too This function is exclusively used in `commitctx`. So we should extract it too for consistency and to reduce the `localrepo` bloat. This is part of a larger refactoring/cleanup of the commitctx code to clarify and augment the logic gathering metadata useful for copy tracing. The current code is a tad too long and entangled to make such update easy. Differential Revision: https://phab.mercurial-scm.org/D8710

commitctx: extract the function in a dedicated module the function have few callers (< 15) is quite long a mostly independent from the repository itself. It seems like a good candidate to reduce the bloatness of the localrepository class. Extracting it will help us cleaning the code up and splitting it into more reasonable-size function. We don't use a copy trick because the amount of code extract is quite small (<5%) and the de-indent means every single line change anyway. So this is not deemed valuable to do so. This is part of a larger refactoring/cleanup of the commitctx code to clarify and augment the logic gathering metadata useful for copy tracing. The current code is a tad too long and entangled to make such update easy. Differential Revision: https://phab.mercurial-scm.org/D8709

commitctx: document a fast path in _filecommit This block cut off a lot of logic, documenting the why and how seems useful to future reader. This is part of a larger refactoring/cleanup of the commitctx code to clarify and augment the logic gathering metadata useful for copy tracing. The current code is a tad too long and entangled to make such update easy. We start with easy and small cleanup. Differential Revision: https://phab.mercurial-scm.org/D8700

hgweb: simplify now that we always have a single path Both `templatedir()` and `web.templatepath` are now always a single path (or None). Differential Revision: https://phab.mercurial-scm.org/D8788

templater: simplify stylemap() now that templatedir() returns a single path Differential Revision: https://phab.mercurial-scm.org/D8787

templater: make templatepaths() return a single path, or None The function returns either a singleton list or an empty list, so it makes more sense to return a value or None. The plural in the name also doesn't make sense, but `templatepath()` is already taken, so I renamed it to `templatedir()` instead. Differential Revision: https://phab.mercurial-scm.org/D8786

templater: simplify templatepaths() to avoid iterating a singleton list The function iterates over a hard-coded list of one element since d844e220792a (templater: don't search randomly for templates - trust util.datapath, 2014-09-28). Differential Revision: https://phab.mercurial-scm.org/D8785

commitctx: move a tiny else clause above the very long one This is simple to have all the simple case unfold before the 100+ line one. Otherwise it is hard to relate the `else` to the initial conditionnal. This is part of a larger refactoring/cleanup of the commitctx code to clarify and augment the logic gathering metadata useful for copy tracing. The current code is a tad too long and entangled to make such update easy. We start with easy and small cleanup. Differential Revision: https://phab.mercurial-scm.org/D8708

commitctx: consider removed as touched This achieve the same result with clearer code. This is part of a larger refactoring/cleanup of the commitctx code to clarify and augment the logic gathering metadata useful for copy tracing. The current code is a tad too long and entangled to make such update easy. We start with easy and small cleanup. Differential Revision: https://phab.mercurial-scm.org/D8707

commitctx: rename "changed" to touched The variable contains content that are both added and modified. "changed" could be confused with "modified" only, so we pick a less ambiguous naming that will help with more unification. For example, it would make sense to shove the "removed" item in there since this is how the variable is used. This is part of a larger refactoring/cleanup of the commitctx code to clarify and augment the logic gathering metadata useful for copy tracing. The current code is a tad too long and entangled to make such update easy. We start with easy and small cleanup. Differential Revision: https://phab.mercurial-scm.org/D8706

commitctx: more filesremoved assignment closer to removed computation A small change that makes the code flow clearer. This is part of a larger refactoring/cleanup of the commitctx code to clarify and augment the logic gathering metadata useful for copy tracing. The current code is a tad too long and entangled to make such update easy. We start with easy and small cleanup. Differential Revision: https://phab.mercurial-scm.org/D8704

commitctx: compute files added from _filecommit returns When possible, lets avoid recomputing the same information again. This is part of a larger refactoring/cleanup of the commitctx code to clarify and augment the logic gathering metadata useful for copy tracing. The current code is a tad too long and entangled to make such update easy. We start with easy and small cleanup. Differential Revision: https://phab.mercurial-scm.org/D8703

commitctx: return "touched" status from _filecommit Instead of mutating a list passed in argument, we simply return the information from the `_filecommit` function. This make for a cleaner API and allow for richer information to be returned. That richer information will be used in the next commit to avoid duplicated computation. This is part of a larger refactoring/cleanup of the commitctx code to clarify and augment the logic gathering metadata useful for copy tracing. The current code is a tad too long and entangled to make such update easy. We start with easy and small cleanup. Differential Revision: https://phab.mercurial-scm.org/D8702