obsolete: have `allsuccessors` takes a list of nodes Additional logic, used to detect mutable history troubles, will need to quickly compute successors of a whole set of changeset.

obsolete: rename `anysuccessors` into `allsuccessors` The "any" prefix looks like it returned a boolean. `allsuccessors` is more accurate.

obsolete: rename `getobscache` into `getrevs` The old name was not very good for two reasons: - caller does not care about "cache", - set of revision returned may not be obsolete at all. The new name was suggested by Kevin Bullock.

largefiles: always create the cache and standin directories when cloning The standin matcher only works if the .hglf directory exists (and it won't exist if 'clone -U' is used, unless --all-largefiles is also specified). Since not even 'update -r null' will get rid of the standin directory, this ensures that the standin directory always exists if the repo has the 'largefiles' requirement. This requirement is only set after a largefile is committed, so these directories will not be created for repos that have the extension enabled but have not committed a largefile. With the standin directory in place, 'lfconvert --to-normal' will now be able to download the required largefiles when converting a repo that was created with 'clone -U', and whose files are not in the usercache. The downloadlfiles command could probably be put inside the 'largefiles' requirement conditional too, but given that the user specified --all-largefiles, there is likely an expectation to print out the number of largefiles downloaded, even if it is 0.

largefiles: fix a traceback in lfconvert if a largefile is missing (issue3519) The largefile may be missing for various reasons, including that a remote repository was cloned without the --all-largefiles option. Therefore, it seems reasonable to attempt to download the missing files and failing that, abort and indicate the affected file and revision so the user can manually fix the problem.

bookmarks: further flatten code This hopefully clarifies the behavior when no NAME is passed, by separating the branches for listing bookmarks vs. deactivating the current bookmark.

scmutil: add bad character checking to checknewlabel This factors out the checks from tags and bookmarks, and newly applies the same prohibitions to branches. checknewlabel takes a new parameter, kind, indicating the kind of label being checked. Test coverage is added for all three types of labels.

tag: disallow '\0' in tag names This brings the list of disallowed characters in line with bookmarks.

dirstate: use scmutil.checknewlabel to check new branch name

bookmarks: use scmutil.checknewlabel Validation is pulled up into the commands module to avoid an import cycle.

scmutil: add function to validate new branch, tag, and bookmark names For now the new function only checks to make sure the new label name isn't a reserved name ('tip', '.', or 'null'). Eventually more of the checks will be unified between the different types of labels. The `tag` command is trivially updated to use it. Updating branches and bookmarks to use it is slightly more invasive and thus reserved for later patches.

bookmarks: disallow bookmarks named 'tip', '.', or 'null' This makes bookmarks reject the same reserved names as tags and branches.

bookmarks: abort directly on invalid name This consolidates the abort message for a bookmark name containing invalid characters into one place, and renames the valid() method to checkvalid() to reflect the fact that it's no longer a predicate.

bookmarks: remove redundant check for newline New bookmarks are already checked for illegal characters (':', '\0', '\n', and '\r') in bookmarks.valid().

test-tag: test that all reserved names are rejected

amend: do a bare kill of temporary changeset Before this changeset the temporary changeset created by amend was made a precursors on the amend result. This add unnecessary complexity to the obsolescence graph. This temporary commit will probably disappear in the future. It is an unwanted byproduct of amend that nobody cares about.

amend: add noise in extra to avoid creating obsolescence cycle (issue3664) Obsolescence cycle are bad and should be avoided as much as possible. The current amend implemented touch changeset meta data as few as possible. This make is easy for amend to result in the same node than a precursors. We add some deterministic noise in extra to avoid this. In practice, the hex of the amended changeset is stored in 'amend_source' extra key.

changelog: extract description cleaning logic in a dedicated function The amend logic have use for it.

bookmarks: replace code-redundant comment with something more useful

bookmarks: remove another uneeded return

update: remove unnecessary argument check

grep: colorize all fields Colors were picked in accordance to GNU grep.

test-grep: add a test for -l

clfilter: remove use of xrange in revset For changelog level filtering to take effect it need to be used for any iteration. Some remaining use of `xrange` in revset code is replace by proper use of `changelog.revs` or direct iteration over changelog.

largefile: use `self` in repo method instead of `repo` Most method added (or overwritten) to repo by largefile works on `repo` instead of `self`. This currently works without trouble because `self` and `repo` are likely the same. However this is semantically dubious and this may cause issue for filtering. `self` may be proxy object different from the `repo` one. This changeset fix that and use `self` when applicable.

test: use proper subclassing in `test-issue2137.t`. To use changelog filtering on the repository, we plan to use "proxy" object that perfectly mock a repository but with a filtered changelog. Altering the `repo.commit` function using `extensions.wrapfunction` will prevent the logic to propagate to the proxy class by the mean of inheritance. We changes the extension to use subclassing as expectable.

run-tests: remove dead code for supporting old test scripts

run-tests: handle windows crlf in .py tests again Before af7c6bc48d8d all crlf occurrences in test output on Windows were simply changed to lf. In af7c6bc48d8d it was replaced by more clever handling in the .t test runner ... but the .py runner was forgotten and many .py tests were failing on Windows. The crlf/lf replacement is now reintroduced in the py test runner.