| Commit message (Collapse) | Author | Age | Files | Lines |
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To give OPT_FILENAME the prefix, we pass the prefix to parse_options()
which passes the prefix to parse_options_start() which sets the prefix
member of parse_opts_ctx accordingly. If there isn't a prefix in the
calling context, passing NULL will suffice.
Signed-off-by: Stephen Boyd <bebarino@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Mike Ralphson <mike@abacus.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We have always had a nice way to reset a working tree to another state
while carrying our changes around: "git read-tree -u -m". Yes, it fails if
the target tree is different in the paths that are dirty in the working
tree, but this is how we used to switch branches in "git checkout", and it
worked fine.
However, perhaps exactly _because_ we've supported this from very early
on, another low-level command, namely "git reset", never did.
But as time went on, 'git reset' remains as a very common command, while
'git read-tree' is now a very odd and low-level plumbing thing that nobody
sane should ever use, because it only makes sense together with other
operations like either switching branches or just rewriting HEAD.
Which means that we have effectively lost the ability to do something very
common: jump to another point in time without always dropping all our
dirty state.
So add this kind of mode to "git reset", and since it merges your changes
to what you are resetting to, just call it that: "git reset --merge".
I've wanted this for a long time, since I very commonly carry a dirty
tree while working on things. My main 'Makefile' file quite often has the
next version already modified, and sometimes I have local modifications
that I don't want to commit, but I still do pulls and patch applications,
and occasionally want to do "git reset" to undo them - while still keeping
my local modifications.
(Maybe we could eventually change it to something like "if we have a
working tree, default to --merge, otherwise default to --mixed").
NOTE! This new mode is certainly not perfect. There's a few things to look
out for:
- if the index has unmerged entries, "--merge" will currently simply
refuse to reset ("you need to resolve your current index first").
You'll need to use "--hard" or similar in this case.
This is sad, because normally a unmerged index means that the working
tree file should have matched the source tree, so the correct action is
likely to make --merge reset such a path to the target (like --hard),
regardless of dirty state in-tree or in-index. But that's not how
read-tree has ever worked, so..
- "git checkout -m" actually knows how to do a three-way merge, rather
than refuse to update the working tree. So we do know how to do that,
and arguably that would be even nicer behavior.
At the same time it's also arguably true that there is a chance of loss
of state (ie you cannot get back to the original tree if the three-way
merge ends up resolving cleanly to no diff at all), so the "refuse to
do it" is in some respects the safer - but less user-friendly - option.
In other words, I think 'git reset --merge' could become a bit more
friendly, but this is already a big improvement. It allows you to undo a
recent commit without having to throw your current work away.
Yes, yes, with a dirty tree you could always do
git stash
git reset --hard
git stash apply
instead, but isn't "git reset --merge" a nice way to handle one particular
simple case?
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
--
Hmm? Maybe I'm the only one that does a lot of work with a dirty tree, and
sure, I can do other things like the "git stash" thing, or using "git
checkout" to actually create a new branch, and then playing games with
branch renaming etc to make it work like this one.
But I suspect others dislike how "git reset" works too. But see the
suggested improvements above.
builtin-reset.c | 26 ++++++++++++++++++--------
1 files changed, 18 insertions(+), 8 deletions(-)
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This had two problems with symrefs. First, it copied the actual sha1
instead of the "pointer", second it failed to remove the old ref after a
successful rename.
Given that till now delete_ref() always dereferenced symrefs, a new
parameters has been introduced to delete_ref() to allow deleting refs
without a dereference.
Signed-off-by: Miklos Vajna <vmiklos@frugalware.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Dmitry Potapov <dpotapov@gmail.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
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"git reset -q" is advertised to "only report errors", but "locally
modified" messages are still shown. They are not errors but diagnostics.
Signed-off-by: Stephan Beyer <s-beyer@gmx.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git update-index --refresh", "git reset" and "git add --refresh" have
reported paths that have local modifications as "needs update" since the
beginning of git.
Although this is logically correct in that you need to update the index at
that path before you can commit that change, it is now becoming more and
more clear, especially with the continuous push for user friendliness
since 1.5.0 series, that the message is suboptimal. After all, the change
may be something the user might want to get rid of, and "updating" would
be absolutely a wrong thing to do if that is the case.
I prepared two alternatives to solve this. Both aim to reword the message
to more neutral "locally modified".
This patch is a more intrusive variant that changes the message for only
Porcelain commands ("add" and "reset") while keeping the plumbing
"update-index" intact.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When you misuse a git command, you are shown the usage string.
But this is currently shown in the dashed form. So if you just
copy what you see, it will not work, when the dashed form
is no longer supported.
This patch makes git commands show the dash-less version.
For shell scripts that do not specify OPTIONS_SPEC, git-sh-setup.sh
generates a dash-less usage string now.
Signed-off-by: Stephan Beyer <s-beyer@gmx.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Resetting a selected set of index entries is done with
"git reset -- paths" syntax, but we did not allow -- to be omitted
even when the command is unambiguous.
This updates the command to follow the general rule:
* When -- appears, revs come before it, and paths come after it;
* When there is no --, earlier ones are revs and the rest are paths, and
we need to guess. When lack of -- marker forces us to guess, we
protect from user errors and typoes by making sure what we treat as
revs do not appear as filenames in the work tree, and what we treat as
paths do appear as filenames in the work tree, and by erroring out if
that is not the case. We tell the user to disambiguate by using -- in
such a case.
which is employed elsewhere in the system.
When this rule is applied to "reset", because we can have only zero or one
rev to the command, the check can be slightly simpler than other programs.
We have to check only the first one or two tokens after the command name
and options, and when they are:
-- A:
no explicit rev given; "A" and whatever follows it are paths.
A --:
explicit rev "A" given and whatever follows the "--" are paths.
A B:
"A" could be rev or path and we need to guess. "B" could
be missing but if exists that (and everything that follows) would
be paths.
So we apply the guess only in the last case and only to "A" (not "B" and
what comes after it).
* As long as "A" is unambiguously a path, index entries for "A", "B" (and
everything that follows) are reset to the HEAD revision.
* If "A" is unambiguously a rev, on the other hand, the index entries for
"B" (and everything that follows) are reset to the "A" revision.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When running git-reset in a non-interactive setting, the -q switch
works for everything except the progress updates. This squelches it.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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git_config() only had a function parameter, but no callback data
parameter. This assumes that all callback functions only modify
global variables.
With this patch, every callback gets a void * parameter, and it is hoped
that this will help the libification effort.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Carlos Rica <jasampler@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Now find_unique_abbrev() never returns NULL, there is no need for callers
to prepare for seeing NULL and fall back to giving the full 40-hexdigits.
While we are at it, drop "..." in the "git reset" output that reports the
location of the new HEAD, between the abbreviated commit object name and
the one line commit summary. Because we are always showing the HEAD
(which cannot be missing!), we never had a case where we show the full 40
hexdigits that is not followed by three dots, and these three dots were
stealing 3 columns from the precious horizontal screen real estate out of
80 that can better be used for the one line commit summary.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
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It's small, but it was in three places already, so it should be in the
library.
Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
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Remove remaining double close(2)'s. i.e. close() before
commit_locked_index() or commit_lock_file().
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It makes no sense since there is no working tree. A soft
reset should be fine, though.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Run diff_tree_release_paths in the appropriate places, and add a test to
avoid NULL dereference. Better safe than sorry.
Signed-off-by: Mike Hommey <mh@glandium.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* js/reset:
builtin-reset: avoid forking "update-index --refresh"
builtin-reset: do not call "ls-files --unmerged"
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Instead of forking update-index, call refresh_cache() directly.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Since reset is a builtin now, it can use the full power of libgit.a
and check for unmerged entries itself.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Many git commands have a -q option to suppress output to stdout, let's
have it for git-reset too.
This was asked for by Joey Hess through
http://bugs.debian.org/444933
Signed-off-by: Gerrit Pape <pape@smarden.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The purpose of the function update_index_from_diff() (which is the
callback function we give do_diff_cache()) is to update those index
entries which differ from the given commit.
Since do_diff_cache() plays games with the in-memory index, this function
discarded the cache and reread it.
Then, back in the function read_from_tree() we wrote the index.
Of course, this broke down when there were no changes and
update_index_from_diff() was not called, and therefore the mangled index
was not discarded.
The solution is to move the index writing into the function
update_index_from_diff().
Noticed by Björn Steinbrink.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
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This replaces the script "git-reset.sh" with "builtin-reset.c".
A few git commands used in the script are called from the builtin also:
"ls-files" to check for unmerged files, "read-tree" for resetting
the index file in "mixed" and "hard" resets, and "update-index" to
refresh at the end in the "mixed" reset and also for the option that
gets selected paths into the index.
The reset option with paths was implemented by Johannes Schindelin.
Since the option that gets selected paths into the index is not
a "reset" like the others because it does not change the HEAD at all,
now the command is showing a warning when the "--mixed" option
is supplied for that purpose.
The following table shows the behaviour of "git reset" for
the different supported options, where X means "changing"
the HEAD, index or working tree:
reset: --soft --mixed --hard -- <paths>
HEAD X X X -
index - X X X
files - - X -
Signed-off-by: Carlos Rica <jasampler@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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