Previously we would not allow --continue if the current working copy parent was
not a descendant of the commit produced by the previous histedit step. There's
nothing really blocking us from continuing the histedit in this situation, so
let's stop aborting in this case.
This is technically a BC change, but it is making things more forgiving so I
think it's ok.
In the future we will likely add an 'exec' action to histedit, which means the
user can do whatever they want during the middle of a histedit (like perhaps
calling 'hg update'), which means we'll need to support this case eventually
anyway.
It's possible for the user to delete some of the commits they started with
during a histedit, and aborting the histedit doesn't bring them back. Let's
store a backup bundle so we can always recover the stack of commits from before
they began.
We were trying to prevent strips of important nodes during histedit,
but the check was actually comparing the short hashes in the rules to
the exact value the user typed in, so it only ever worked if the user
typed a 12 character hash.
In a previous commit we removed the extra histedit object instance being
constructed in --continue and --abort. The new --edit-todo missed this fix
though (which means the state object it produces doesn't have the locks on it).
It's not breaking anything now, but let's go ahead and clean that up before we
forget.
Before this change hg help histedit would use the default variable label:
--commands VALUE
...
-r --rev VALUE [+]
With this change the text will be in the usual help text style and a bit more
explanatory:
--commands FILE
...
-r --rev REV [+]
The rest of help messages for command arguments are simple phrases without any
ending punctuation, so having this text be a complete sentence didn't really
fit.
Since many users are using terminals wider than 80 chars there should be an
option to have longer lines in histedit editor.
Even if the summary line is shorter than 80 chars after adding action line
prefixes (like "pick 7c2fd3b9020c") it doesn't fit there anymore. Setting
it to for example 110 would be a nice option to have.
Previously, the histedit state object was being recreated during continue/abort.
This meant that the locks that were held on the original state object were not
available to actions, which meant actions could not release the lock on the
repository (like an 'exec' action would need to do).
This affected our internal extension that added the 'exec' action.
Currently, if the node no longer exists, the state object fails to load
and pukes with an exception. Changing the state object to only store the
node allows callers to handle these cases. For instance, in
bootstrapcontinue we can now detect that the node doesn't exist and exit
gracefully.
The alternative is to have the state object store something like None
when the node doesn't exist, but then outside callers won't be able to
access the old node for recovery (unless we store both the node and the
ctx, but why bother).
More importantly it allows us to detect this case when doing hg histedit
--abort. Currently this situation results in both --continue and
--abort being broken and the user has to rm .hg/histedit-state to unwedge
their repo.
(description by Durham Goode)
During histedit we don't want user to do any operation resulting in
stripping nodes needed to continue history editing. This patch
wraps the strip function to detect such situations.
Adds a configuration setting for allowing users to specify the default behavior
of 'hg histedit' without arguments. This saves users from having to manually
figure out the bottom commit or a complicated revset. My current revset of
choice is "only(.) & draft() - ::merge()"
The commits that histedit can work with is usually quite limited, so if this
feature ends up working well, we may want to consider making "only(.) & draft()
- ::merge()" the default behavior for everyone.
Previously histedit only stored the short version of the rule nodes in the
state. This meant that later we couldn't resolve a rule node to its full
form if the commit had been deleted from the repo.
Let's store the full form from the beginning.
Read the state in histeditstate. This allows us to correctly update
internal variables when necessary without having to recreate a new
state. When we read a state in _histedit state while we will already
have state passed from histedit(), we can read the state in place
and don't have to merge two histeditstates.
The histedit code often expects a context. However histedit hands
around the tuple for the serialization and therefore hand over a
parentctxnode. This leads to code having to return a context based
on the parentctxnode. We let the state only return a context but
correctly serialize and deserialze to a node.
Add an histeditstate class that is intended to hold the current
state. This allows us encapsulate the state and avoids passing
around a tuple which is based on the serialization format. In
particular this will give actions more control over the state and
allow external sources to have more control of histedits behavior,
e.g. an external implementation of x/exec.
The basic obsolete option is allowing the creation of obsolete markers. This
does not enable other features, such as allowing unstable commits or exchanging
obsolete markers.
The `nodes` object is a set. We sort it to get stable order. This is going to
prevent revsets from getting confused when removing a `.set()` call in `roots`.
This wraps all the locations of dirstate.setparent with the appropriate
begin/endparentchange calls. This will prevent exceptions during those calls
from causing incoherent dirstates (issue4353).
The internal API used IOError to indicate that a file should be marked as
removed.
There is some correlation between IOError (especially with ENOENT) and files
that should be removed, but using IOErrors to represent file removal internally
required some hacks.
Instead, use the value None to indicate that the file not is present.
Before, spurious IO errors could cause commits that silently removed files.
They will now be reported like all other IO errors so the root cause can be
fixed.
When the authorship of the changeset folded in does not match that of
the base changeset, we currently use the configured ui.username
instead. This is especially surprising when the user is not the author
of either of the changesets. In such cases, the resulting authorship
(the user's) is clearly incorrect. Even when the user is folding in a
patch they authored themselves, it's not clear whether they should
take over the authorship. Let's instead keep it simple and always
preserve the base changeset's authorship. This is also how
"git rebase -i" handles folding/squashing.
This new histedit command (short for "rollup") is a variant of "fold" akin to
"hg amend" for working copy: it accumulates changes without interrupting
the user and asking for an updated commit message.
This patch passes 'editform' argument according to the format below:
EXTENSION[.COMMAND][.ROUTE]
- EXTENSION: name of extension
- COMMAND: name of command, if there are two or more commands in EXTENSION
- ROUTE: name of route, if there are two or more routes for COMMAND
In this patch:
- 'edit', 'fold', 'mess' and 'pick' are used as COMMAND
- ROUTE is omitted
'histedit.pick' case is very rare, but possible if:
- target revision causes conflict at merging (= requires '--continue'), and
- description of it is empty ('hg commit -m " "' can create such one)
In the code path for 'histedit --continue' (the last patch hunk),
'canonaction' doesn't contain the entry for 'fold', because 'fold'
action causes:
- using temporary commit message forcibly, and
- making 'editopt' False always (= omit editor invocation if commit
message is specified)
Before this patch, trimming description of each changesets in histedit
may split at intermediate multi-byte sequence.
This patch uses 'util.ellipsis' to trim description of each changesets
instead of directly slicing byte sequence.
Even though 'util.ellipsis' adds '...' as ellipsis when specified
string is trimmed (= this changes result of trimming), this patch uses
it, because:
- it can be used without any additional 'import', and
- ellipsis seems to be better than just trimming, for usability
