rebase: preserve metadata from grafts of changes (issue4001)

rebase: rework extrafn handling to support multiple extrafns This makes it possible to pass keepbranches and extrafn to rebase at the same time, although nobody uses that functionality presently. This is a precursor to keeping graft metadata.

hgweb: call process_dates with a specified selector in ajax scroll Now this function processes only newly added entries, and not old ones, the amount of which can be much bigger.

hgweb: add parentSelector argument to process_dates Allow specifying parent selector of elements to process, useful for incremental page updates.

hgweb: optimize process_dates function This function looped over every node due to getElementsByTagName('*'), instead of using selectors. In this patch we use querySelectorAll('.age') and process only these nodes, which is much faster and also doesn't require extra condition. Browser compatibility isn't sacrificed: IE 8+, FF 3.5+, Opera 10+.

shelve: allow shelving of a change with an mq patch applied We allow shelving of of changes on top of a MQ repository. MQ will not allow repository changes on top of applied patches. We introduce checkapplied in MQ to bypass this check.

shelve: new output format for shelve listings Use a more condensed and mercurial-like output format for shelve listing. We don't prefix the message with 'shelved from...' anymore as our default name contains the branch name or the user used his own name. To avoid just printing the last commit message, we drop writing the description to stdout. old output: default [1s ago] shelved from default (01ba9745): create conflict new output: default (1s ago) create conflict

shelve: add a shelve extension to save/restore working changes This extension saves shelved changes using a temporary draft commit, and bundles the temporary commit and its draft ancestors, then strips them. This strategy makes it possible to use Mercurial's bundle and merge machinery to resolve conflicts if necessary when unshelving, even when the destination commit or its ancestors have been amended, squashed, or evolved. (Once a change has been unshelved, its associated unbundled commits are either rolled back or stripped.) Storing the shelved change as a bundle also avoids the difficulty that hidden commits would cause, of making it impossible to amend the parent if it is a draft commits (a common scenario). Although this extension shares its name and some functionality with the third party hgshelve extension, it has little else in common. Notably, the hgshelve extension shelves changes as unified diffs, which makes conflict resolution a matter of finding .rej files and conflict markers, and cleaning up the mess by hand. We do not yet allow hunk-level choosing of changes to record. Compared to the hgshelve extension, this is a small regression in usability, but we hope to integrate that at a later point, once the record machinery becomes more reusable and robust.

localrepo: make report level in repo.transaction configurable repo.transaction always writes to stderr when a transaction aborts. In order to be able to abort a transaction quietly (e.g shelve needs a temporary view on the repo) we need to make the report level configurable.

merge with stable

Added signature for changeset e7fa36d2ad3a

Added tag 2.7.2 for changeset e7fa36d2ad3a

rebase: catch RepoLookupError at restoring rebase state for summary Before this patch, "hg summary" may fail, when there is inconsistent rebase state: for example, the root of rebase destination revisions recorded in rebase state file is already stripped manually. Mercurial earlier than 2.7 allows users to do anything other than starting new rebase, even though current rebase is not finished or aborted yet. So, such inconsistent rebase states may be left and forgotten in repositories. This patch catches RepoLookupError at restoring rebase state for summary hook, and treat such state as "broken".

rebase: catch RepoLookupError at restoring rebase state for abort/continue Before this patch, "rebase --abort"/"--continue" may fail, when rebase state is inconsistent: for example, the root of rebase destination revisions recorded in rebase state file is already stripped manually. Mercurial earlier than 2.7 allows users to do anything other than starting new rebase, even though current rebase is not finished or aborted yet. So, such inconsistent rebase states may be left and forgotten in repositories. This patch catches RepoLookupError at restoring rebase state for abort/continue, and treat such state as "broken".

histedit: suggest "histedit --abort" for inconsistent histedit state Mercurial earlier than 2.7 allows users to do anything other than starting new histedit, even though current histedit is not finished or aborted yet. So, unfinished (and maybe inconsistent now) histedit states may be left and forgotten in repositories. Before this patch, histedit extension shows the message below, when it detects such inconsistent state: abort: REV is not an ancestor of working directory (update to REV or descendant and run "hg histedit --continue" again) But this message is incorrect, unless old Mercurial is re-installed, because Mercurial 2.7 or later disallows users to update the working directory to another revision. This patch changes the hint message to suggest "hg histedit --abort".

repoview: have unfilteredpropertycache using the underlying cache A `unfilteredpropertycache` is a kind of `propertycache` used on `localrepo` to unsure it will always be run against unfiltered repo and stored only once. As the cached value is never stored in the repoview instance, the descriptor will always be called. Before this patch such calls always result in a call to the `__get__` method of the `propertycache` on the unfiltered repo. That was recomputing a new value on every access through a repoview. We can't prevent the repoview's `unfilteredpropertycache` to get called on every access. In that case the new code makes a standard attribute access to the property. If a value is cached it will be used. The `propertycache` test file have been augmented with test about this issue.

repoview: make propertycache.setcache compatible with repoview Propertycache used standard attribute assignment. In the repoview case, this assignment was forwarded to the unfiltered repo. This result in: (1) unfiltered repo got a potentially wrong cache value, (2) repoview never reused the cached value. This patch replaces the standard attribute assignment by an assignment to `objc.__dict__` which will bypass the `repoview.__setattr__`. This will not affects other `propertycache` users and it is actually closer to the semantic we need. The interaction of `propertycache` and `repoview` are now tested in a python test file.

i18n-pt_BR: synchronized with 1aaefba2a3a9

merge with stable

histedit: add more detailed help about "--outgoing"

histedit: abort if there are multiple roots in "--outgoing" revisions Before this patch, if there are multiple roots in "--outgoing" revisions, result of "histedit --outgoing" depends on the parent of the working directory. It succeeds only when the parent of the working directory is a descendant of the oldest root in "--outgoing" revisions, and fails otherwise. It seems to be ambiguous and difficult for users. This patch makes "histedit --outgoing" abort if there are multiple roots in "--outgoing" revisions always.

discovery: abort also when pushing multiple headed new branch Before this patch, pushing with --new-branch permits to create multiple headed branch on the destination repository. But permitting to create new branch should be different from permitting to create multiple heads on branch. This patch prevents from careless pushing multiple headed new branch, and requires --force to push such branch forcibly.

branchmap: stop looking for stripped branch Since repoview in 2.5 we do not make special call to `branchmap` when stripping. We just recompute the branchmap from a lower subset that still has valid branchmap. So I'm dropping this dead code.

branchmap: remove the droppednodes logic It was unused. note how it is only extended if the list is empty. So it's always empty at the end. We could try to fix that, however this would part of the code is to be removed in the next changeset as we do not run `branchmap` on truncated repo since `repoview` in 2.5.