rebase: restore help for rebase w/o args (issue5059) Restoring documentation accidentally removed in a9a047878e14.

shelve: use cg3 for treemanifests Similar to previous change, this teaches shelve to pick the right changegroup version for repos that use treemanifests.

repair: use cg3 for treemanifests The newly created helper changegroup.safeversion() knows to pick version 03 if the repo uses treemanifests, so just using that means we pick the right changegroup version.

changegroup: introduce safeversion() In a few places (at least repair.py and shelve.py), we want to find the best changegroup version that we can assume users of the repo will understand. For example, we choose version 01 by default, but if it's a generaldelta repo, we expect clients to support version 02 anyway, so we choose that for new bundles (for e.g. "hg strip"). Let's create a helper for this functionality in changegroup, so we can reuse it elsewhere later.

changegroup: don't support versions 01 and 02 with treemanifests Since it would be terribly expensive to convert between flat manifests and treemanifests, we have decided to simply not support changegroup version 01 and 02 with treemanifests. Therefore, let's stop announcing that we support these versions on treemanifest repos. Note that this means that older clients that try to clone from a treemanifest repo will fail. What happens is that the server, after this patch, finds that there are no common versions and raises "ValueError: no common changegroup version". This results in "abort: HTTP Error 500: Internal Server Error" on the client. Before this patch, it was no better: The server would instead find that there were directory manifest nodes to put in the changegroup 01 or 02 and raise an AssertionError on changegroup.py#668 (assert not tmfnodes), which would also appear as a 500 to the client.

run-tests: fix crash when --json and --blacklist are both used (issue5050) This patch fixes a crash when both --json and --blacklist were given as arguments of run-tests.py. Now, instead of crashing, we add an entry for blacklisted tests in the json output to show that the tests were skipped.

run-tests: fix race condition Before this patch, it was possible for run-tests to crash on a race condition. The race condition happens in the following case: - the last test finishes and calls: done.put(None) - the context switches to the main thread that clears the channels list - the context switches to the last test mentioned above, it tries to access channels[channel] and crashes This happened to me while running run-tests. This patch fixes the issue by clearing the channel before considering that the test is done.

copyright: update to 2016

transaction: abort transaction during hook exception The new transaction context did not handle the case where an exception during close should still call release. This cause pretxnclose hooks that failed to cause the transaction to fail without aborting, thus requiring a hg recover. I've added a test.

Added signature for changeset 158bdc896572

Added tag 3.7-rc for changeset 158bdc896572

shelve: lowercase flag description The help for --unknown is the *only* command that started with a capital letter

changegroup: cg3 has two empty groups *after* manifests changegroup.getchunks() determines the end of the stream by looking for an empty chunk group (two consecutive empty chunks). It ignores empty groups in the first two groups. Changegroup 3 introduced an empty chunk between the manifests and the files, which confuses getchunks(). Since it comes after the first two, getchunks() will stop there. Fix by rewriting getchunks so it first counts two groups (empty or not) and then keeps antostarts counting empty groups. With this counting, changegroup 1 and 2 have exactly one empty group after the first two groups, while changegroup 3 has two (one for directories and one for files). It's a little hard to test this at this point, but I have verified that this patch fixes narrowhg (which was broken before this patch). Also, future patches will fix "hg strip" with treemanifests, and once that's done, getchunks() will be tested through tests of "hg strip".

mq: check for reserved patch name with qimport -r (issue5033) Fix regression from 143b52fce68e. Catching aborts might not be pretty but it works and is a small change.

mq: refactor makepatchname into class method

repoview: fix corrupted hiddencache crash Mercurial (issue5042) Before this patch if the hiddencache existed but was empty, it would crash mercurial. This patch adds exception handling when reading the hiddencache to avoid the issue. When encountering a corrupted cache file we print a devel warning. There would be no point in issuing a normal warning as the user wouldn't be able to do anything about the situation. The warning looks like: devel-warn: corrupted hidden cache, removing it at: /path/to/repoview.py

repoview: add missing newline character in debug prints

commandserver: drop tell() and seek() from channels (issue5049) These operations are obviously invalid for file-like channels because they will read or write protocol headers. This patch works around the issue that "hg archive" generates a corrupted zip file on Windows commandserver because of unusable tell() implementation. But the problem still occurs without using a commandserver. $ hg archive -R not-small-repo -t zip - | cat > invalid.zip So, this patch cannot fix the issue5049 completely.

crecord: edit during hg crecord should preserve cursor position (issue5041) This patch adds a variable to keep track of what hunk was selected before the edit. We use that variable to select the hunk or its replacement after the edit.

templates: use canvaswidth instead of fixed width for canvas (issue2683) Before this patch, template files for "graph" web page use fixed width size "480" for canvas element. This causes pruned lanes and invisible vertexes, if there are 16 or more vertical lanes at once. In such case, part of graph in right side area over 480 is invisible, even though corresponded summary text blocks are visible correctly. This limitation isn't reasonable for workflow using many branches at once (e.g. "one branch per issue" workflow). There were changes below related to width of canvas: - 7359cb753a54 (templates: widen the graph canvas (issue2683)), released as a part of Mercurial 1.8.2 According to the description, this assumed that 15 parallel branches was enough for ordinary workflow, and bumped width of canvas up from 224 to 480. - d490edc71146 (hgweb: make graph data suitable for template usage), released as a part of Mercurial 2.3 This introduced "canvaswidth" template keyword as a part of refactoring around graph rendering. But 'width="480"' of canvas element in template files wasn't replaced by 'width="{canvaswidth}"' in it (or subsequent one). This patch uses dynamic value "{canvaswidth}" instead of fixed width size "480" for canvas element. This is posted for "stable", because: - this is re-fixing issue2683 - this is simple enough for stable - using "{canvaswidth}" doesn't require any additional cost Calculation of canvaswidth is already implied as a part of "graph" web command.

backout: fix --no-commit option (issue5054)

bundle: exit early when there are no commits to bundle Previously, if you passed a revset that resolved to no nodes, it would get interpreted by the changegroup discovery logic as 'bundle all my heads', which is not what the user asked. Let's exit early when we notice this case. It could be argued that the changeset discovery logic should be smarter and only assume 'all heads' if the incoming heads parameter is None, but that's a much riskier change.

zeroconf: access repo on hgweb_mod properly (issue5036) hgweb_mod.hgweb.repo disappeared in ae33fff17c1e (hg: establish a cache for localrepository instances) and the code for accessing repo instances from hgweb was later refactored to go through a cache-aware context manager. Adapt zeroconf to access the repo instance via the new API.

merge default into stable for 3.7 code freeze