rust: translated random test of missingancestors This is a Rust implementation of the random DAG generator and related incrementalmissingancestors tests against a naive brute force implementation. It is provided as an integration test, so that it won't run by default if any unit test fails. In case of a failed example, all needed information for reproduction is included in the panic message, (this is how `test_remove_ancestors_from_case1()` has been generated), as well as the random seed. The whole test is rerunnable by passing the random seed in the TEST_RANDOM_SEED environment variable. The other parameters (numbers of iterations) can be passed in the TEST_MISSING_ANCESTORS environment variable. An alternative would have been to expose to Python MissingAncestors<VecGraphs> but that would have meant pollution of the release build used from Python, whereas we do it in this changeset within the tests submodule Differential Revision: https://phab.mercurial-scm.org/D5417

debugpathcopies: fix typo in synopsis Differential Revision: https://phab.mercurial-scm.org/D5949

debugrename: don't require at least one path I don't see a reason that it needs to require a path. Most commands match everything when no paths are given, but here you have to do something like `hg debugrename -r . .` (from the repo root) to match everything. Differential Revision: https://phab.mercurial-scm.org/D5948

revlog: use iterbytestr() Otherwise we iterate over integers in Python 3 and the character compare fails. Differential Revision: https://phab.mercurial-scm.org/D5947

commit: respect ui.relative-paths The command usually doesn't print any paths, but there are some warnings and verbose messages that includes paths. Differential Revision: https://phab.mercurial-scm.org/D5939

resolve: slightly simplify join expression by joining with empty strings Differential Revision: https://phab.mercurial-scm.org/D5938

resolve: respect ui.relative-paths also for warning messages I guess this should have been part of 72a9aacff645 (resolve: respect ui.relative-paths, 2019-01-29). Differential Revision: https://phab.mercurial-scm.org/D5937

addremove: respect ui.relative-paths I previously changed these code paths while trying to not change any behavior to avoid inconsistencies between them in the intermediate commits. They're now all ready to be switched over to respecting ui.relative-paths. Differential Revision: https://phab.mercurial-scm.org/D5936

windows: use util.localpath for repo-relative paths in getuipathfn() Now that we have a single place that translates from internal path representation (slash-separated) to UI representation (i.e. scmutil.getuipathfn()), let's switch that over to using util.localpath for absolute paths. I don't expect any test impact on Windows because we still respect ui.slash, which is set by the test runner. As Yuya pointed out, a997163e7fae (status: extract helper for producing relative or absolute path for UI, 2019-01-29) accidentally changed to slash-separated paths on Windows because it used used to use repo.pathto(f, cwd='') (which calls util.localpath()) and after that patch it just prints the filename without any transformation. This patch should fix that regression. Differential Revision: https://phab.mercurial-scm.org/D5935

walkchangerevs: obey allfiles parameter when taking the slow path When walkchangerevs sees that there's a pattern, it hits the slow path. The slow path in turn reverts to the old dumb grep behaviour of only looking at files changed at each revision. Therefore, a command such as hg grep -l --all-files '.*' 'glob:**' would show you all the nonempty files touched by the current revision. This modifies that behaviour to look at the manifest at each revision instead of the changed files in case that --all-files was requested.