test-pattern: register the current the bundle2 capabilities string The bundle capabilites are sent with every getbundle ssh connection. Every time the protocol is updated, that string is altered. We get the part about bundle2 string replaced by $USUAL_BUNDLE2_CAPS$ so that we only have to change the substitution whenever this happens.

test-pattern: register current the bundlecaps string The bundle capabilites sent with every getbundle commands. Every time the protocol is updated, that string is altered. We get that string replace by $USUAL_BUNDLE_CAPS$ so that we only have to change the substitution whenever this happens.

test-pattern: substitute common compression list The compression list as to be matched with a glob because zstd might not be part of the option. By using a substitution for these, we won't have to re-glob them over and over.

run-tests: allow to register any arbitrary pattern for replacement We add a 'common-pattern.py' file that allow to define extra pattern. This seems a cleaner approach than editing the 'run-test.py' file over and over. In addition allowing arbitrary pattern registration will also help extension. The format used is a python file is picked out of convenience defining a list of tuple in 'substitutions' variable. This is picked out of convenience since it is dead simple to implement. The end goal is to register more pattern for Mercurial test. There are multiple common patterns that change over time. That impact is annoying. Using pattern emplacement for them would be handy. The next patches will define all the needed patterns and the last patch will mass-update the tests outputs as it was easier to do in a single pass.

crecord: fix revert -ir '.^' crash caused by 3649c3f2cd 3649c3f2cd (revert: do not reverse hunks in interactive when REV is not parent (issue5096)) changed the record "operation" for the text version but missed the curses version. Without this patch, running `hg revert -ir '.^' --config ui.interface=curses` would crash with: ProgrammingError: unexpected operation: apply Differential Revision: https://phab.mercurial-scm.org/D1381

tweakdefaults: turn on ui.statuscopies Seems obviously useful and probably off by default for historical reasons. Differential Revision: https://phab.mercurial-scm.org/D1444

run-tests: fix TESTDIR if testdescs are absolute paths Commit a18eef03d879 made TESTDIR be the location of the arguments that were passed to run-tests.py instead of just PWD. It assumed that these tests were specified using relative paths, so if pwd was /tmp/foo, and the first argument was /tmp/baz, it would set TESTDIR to /tmp/foo//tmp/baz. Differential Revision: https://phab.mercurial-scm.org/D1433

hgweb: show commit phase if it's not public In spartan theme phase is shown on its own table row, because there's no single line of "tags". Everywhere else phase is prepended to the list of "tags" of a changeset. Its element has a purple-ish color in gitweb and monoblue, and a dotted line under it and no color in paper and coal (as these themes are frugal with colors). This patch intentionally doesn't touch graph, because it needs a rewrite. I'll get to it pretty soon and in the process will add phase and everything that's still coming (e.g. obsolescence and instabilities). .. feature:: hgweb now displays phases of non-public changesets

hgweb: move changeset "tags" to a template in map file (paper and coal) This patch puts all these changeset "tags" into one template shared everywhere in paper and coal themes. But it should be noted that some of the templates had different sets of tags, in some cases it was intended, in others - most likely not. First, what's up with all these different ways to get changeset's branch. There are actually 3 ways to do it in hgweb, they can all be seen in this patch; "branches", "inbranch" and "branch". They are all lists that consist of 1 or 0 items: - "branches" has ctx.branch() if current changeset is the tip of that branch - "inbranch" has ctx.branch() if current changeset is _not_ the tip of that branch and the branch is not "default" - "branch" aka "changesetbranch" has ctx.branch() if the branch is not "default" The majority of cases (7 vs 2 + /graph) in paper theme used only option 3, which meant that "default" was never displayed. But other parts of the theme disagreed with this and used option 1 and option 2 together. For example, the default view (log) displays "default" on the branch tip (can be seen right about now on m-s.o/repo/hg), but it disappears when you click on the commit. Also, using option 3 alone meant that there was no way to tell if a changeset is the tip of its branch or not (it was always assumed that it's not, see how some css classes change from "branchname" to the correct "branchhead" in tests) -- so the two different css styles that exist in paper just for this were underused. I think this patch improves the situation, even though it changes the old (even if inconsistent) behavior. The new behavior matches that of gitweb and monoblue.

logtoprocess: clean-up old comment The comment was likely to be for runshellcommand code. Differential Revision: https://phab.mercurial-scm.org/D1425

patch: accept prefix argument to changedfiles() helper I'd like to call the function from an extension, passing both "strip" and "prefix", but it currently only accepts "strip". The only in-tree caller seems to be mq.py, which doesn't even pass "strip". Differential Revision: https://phab.mercurial-scm.org/D1413

hgweb: move changeset "tags" to a template in map file (gitweb and monoblue) Less duplication and it's also easier to add extra "tags" everywhere at once. These aren't tags as defined `hg help glossary` (hence the quotes), they are simply called that. They include branch name (in different styles if changeset is a head of that branch or not), (actual) tags and bookmarks. Good candidates to add to this list would be changeset phase and obsoletion status.

hgweb: split long lines in gitweb and monoblue (changeset summary and tags)

debugdeltachain: output information about sparse read if enabled

rebase: exclude descendants of obsoletes w/o a successor in dest (issue5300) .. feature:: Let 'hg rebase' avoid content-divergence by skipping obsolete changesets (and their descendants) when they are present in the rebase set along with one of their successors but none of their successors is in destination. In the following example, when trying to rebase 3:: onto 2, the rebase will abort with "this rebase will cause divergence from: 4": o 7 f | | o 6 e | | | o 5 d' | | x | 4 d (rewritten as 5) |/ o 3 c | | o 2 x | | o | 1 b |/ o 0 a By excluding obsolete changesets without a successor in destination (4 in the example above) and their descendants, we make rebase work in this case, thus giving: o 11 e | o 10 d' | o 9 c | o 8 b | | o 7 f | | | | x 6 e (rewritten using rebase as 11) | | | | | x 5 d' (rewritten using rebase as 10) | | | | x | 4 d | |/ | x 3 c (rewritten using rebase as 9) | | o | 2 x | | | x 1 b (rewritten using rebase as 8) |/ o 0 a where branch 4:: is left behind while branch 5:: is rebased as expected. The rationale is that users may not be interested in rebasing orphan changesets when specifying a rebase set that include them but would still want "stable" ones to be rebased. Currently, the user is suggested to allow divergence (but probably does not want it) or they must specify a rebase set excluding problematic changesets (which might be a bit cumbersome). The approach proposed here corresponds to "Option 2" in https://www.mercurial-scm.org/wiki/CEDRebase. We extend _computeobsoletenotrebased() so that it also return a set of obsolete changesets in rebase set without a successor in destination but with at least one successor in rebase set. This 'obsoletewithoutsuccessorindestination' is then stored as an attribute of rebaseruntime and used in _performrebasesubset() to: * filter out descendants of these changesets from the revisions to rebase; * issue a message about these revisions being skipped. This only occurs if 'evolution.allowdivergence' option is off and 'rebaseskipobsolete' is on.

tests: add a couple of 'hg log' calls in test-rebase-obsolete.t It helps understanding tests.

tests: conditionally display obsfate in test-rebase-obsolete log output This helps understanding and debugging.

tests: clarify a comment in test-rebase-obsolete.t

bundlerepo: rename _bundle to _cgunpacker _bundle is really a changegroup unpacker instance. Rename the variable accordingly. Differential Revision: https://phab.mercurial-scm.org/D1379

bundlerepo: assign bundle attributes in bundle type blocks It is a bit wonky to assign the same object to multiple attributes and then possibly overwrite them later. Refactor the code to use a local variable and defer attribute assignment until the final values are ready. This required passing the bundle instance to _handlebundle2part(). The only use of this method I could find is Facebook's treemanifest extension. Since it is a private method, I don't think it warrants an API callout. Differential Revision: https://phab.mercurial-scm.org/D1378

bundlerepo: make bundle and bundlefile attributes private These attributes are implementation details and shouldn't be exposed outside the class. .. api:: bundlerepo.bundlerepository.bundle and bundlerepo.bundlerepository.bundlefile are now prefixed with an underscore. Differential Revision: https://phab.mercurial-scm.org/D1377

bundlerepo: don't assume there are only two bundle classes exchange.readbundle() can return a type that represents a stream clone bundle. Explicitly handle the bundle1 type and raise a reasonable error message for unhandled bundle types. Differential Revision: https://phab.mercurial-scm.org/D1376

bundlerepo: add docstring for bundlerepository class Differential Revision: https://phab.mercurial-scm.org/D1375

bundlerepo: rename arguments to bundlerepository.__init__ To reflect what they actually are. Differential Revision: https://phab.mercurial-scm.org/D1374

bundlerepo: use suffix variable It looks like the refactor in 702a26fec3e2 attempted to establish this method argument but failed to use it. My editor caught it. Differential Revision: https://phab.mercurial-scm.org/D1373

bundlerepo: make methods agree with base class My editor was complaining about mismatches between method signatures. For methods that are implemented, we change arguments to match the base. For those that aren't, we use variable arguments because it shouldn't matter. Differential Revision: https://phab.mercurial-scm.org/D1372

bundle2: use os.SEEK_* constants Constants make code easier to read than magic numbers. I also threw in an explicit argument in a caller to further increase code comprehension. Differential Revision: https://phab.mercurial-scm.org/D1370

help: adding a topic on flags This is a short topic to explain how command-line flags can be specified. Some users have been confused by hg offerring different flag syntax than some other libraries, so it'd be nice to point them to this rather than explaining it every time. Differential Revision: https://phab.mercurial-scm.org/D1270