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This new syntax finds a funcname matching /pattern/, and then takes from there
up to (but not including) the next funcname. So you can say
git log -L:main:main.c
and it will dig up the main() function and show its line-log, provided
there are no other funcnames matching 'main'.
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This is a rewrite of much of Bo's work, mainly in an effort to split
it into smaller, easier to understand routines.
The algorithm is built around the struct range_set, which encodes a
series of line ranges as intervals [a,b). This is used in two
contexts:
* A set of lines we are tracking (which will change as we dig through
history).
* To encode diffs, as pairs of ranges.
The main routine is range_set_map_across_diff(). It processes the
diff between a commit C and some parent P. It determines which diff
hunks are relevant to the ranges tracked in C, and computes the new
ranges for P.
The algorithm is then simply to process history in topological order
from newest to oldest, computing ranges and (partial) diffs. At
branch points, we need to merge the ranges we are watching. We will
find that many commits do not affect the chosen ranges, and mark them
TREESAME (in addition to those already filtered by pathspec limiting).
Another pass of history simplification then gets rid of such commits.
This is wired as an extra filtering pass in the log machinery. This
currently only reduces code duplication, but should allow for other
simplifications and options to be used.
Finally, we hook a diff printer into the output chain. Ideally we
would wire directly into the diff logic, to optionally use features
like word diff. However, that will require some major reworking of
the diff chain, so we completely replace the output with our own diff
for now.
As this was a GSoC project, and has quite some history by now, many
people have helped. In no particular order, thanks go to
Jakub Narebski <jnareb@gmail.com>
Jens Lehmann <Jens.Lehmann@web.de>
Jonathan Nieder <jrnieder@gmail.com>
Junio C Hamano <gitster@pobox.com>
Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Will Palmer <wmpalmer@gmail.com>
Apologies to everyone I forgot.
Signed-off-by: Bo Yang <struggleyb.nku@gmail.com>
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We want to use the same style of -L n,m argument for 'git log -L' as
for git-blame. Refactor the argument parsing of the range arguments
from builtin/blame.c to the (new) file that will hold the 'git log -L'
logic.
To accommodate different data structures in blame and log -L, the file
contents are abstracted away; parse_range_arg takes a callback that it
uses to get the contents of a line of the (notional) file.
The new test is for a case that made me pause during debugging: the
'blame -L with invalid end' test was the only one that noticed an
outright failure to parse the end *at all*. So make a more explicit
test for that.
Signed-off-by: Bo Yang <struggleyb.nku@gmail.com>
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* maint:
Update draft release notes to 1.8.1.5
Documentation/submodule: Add --force to update synopsis
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* wk/man-deny-current-branch-is-default-these-days:
user-manual: typofix (ofthe->of the)
user-manual: Update for receive.denyCurrentBranch=refuse
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An earlier workaround designed to help people who list logical
directories that will not match what getcwd(3) returns in the
GIT_CEILING_DIRECTORIES had an adverse effect when it is slow to
stat and readlink a directory component of an element listed on it.
* mh/maint-ceil-absolute:
Provide a mechanism to turn off symlink resolution in ceiling paths
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In commit 9db31bdf (submodule: Add --force option for git submodule
update, 2011-04-01) we added the option to the implementation's usage
synopsis but forgot to add it to the synopsis in the command
documentation. Add the option to the synopsis in the same location it
is reported in usage and re-wrap the options to avoid long lines.
Signed-off-by: Brad King <brad.king@kitware.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Further updates to the user manual.
* wk/user-manual:
user-manual: Flesh out uncommitted changes and submodule updates
user-manual: Use request-pull to generate "please pull" text
user-manual: Reorganize the reroll sections, adding 'git rebase -i'
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* wk/man-deny-current-branch-is-default-these-days:
user-manual: typofix (ofthe->of the)
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jc/mention-tracking-for-pull-default:
doc: mention tracking for pull.default
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* mm/config-intro-in-git-doc:
git.txt: update description of the configuration mechanism
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* mg/bisect-doc:
git-bisect.txt: clarify that reset quits bisect
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* jk/remote-helpers-doc:
Rename {git- => git}remote-helpers.txt
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"Advice" is a mass noun, not a count noun; it's not ordinarily
pluralized.
Signed-off-by: Greg Price <price@mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Commit 1b77d83cab 'setup_git_directory_gently_1(): resolve symlinks
in ceiling paths' changed the setup code to resolve symlinks in the
entries in GIT_CEILING_DIRECTORIES. Because those entries are
compared textually to the symlink-resolved current directory, an
entry in GIT_CEILING_DIRECTORIES that contained a symlink would have
no effect. It was known that this could cause performance problems
if the symlink resolution *itself* touched slow filesystems, but it
was thought that such use cases would be unlikely. The intention of
the earlier change was to deal with a case when the user has this:
GIT_CEILING_DIRECTORIES=/home/gitster
but in reality, /home/gitster is a symbolic link to somewhere else,
e.g. /net/machine/home4/gitster. A textual comparison between the
specified value /home/gitster and the location getcwd(3) returns
would not help us, but readlink("/home/gitster") would still be
fast.
After this change was released, Anders Kaseorg <andersk@mit.edu>
reported:
> [...] my computer has been acting so slow when I’m not connected to
> the network. I put various network filesystem paths in
> $GIT_CEILING_DIRECTORIES, such as
> /afs/athena.mit.edu/user/a/n/andersk (to avoid hitting its parents
> /afs/athena.mit.edu, /afs/athena.mit.edu/user/a, and
> /afs/athena.mit.edu/user/a/n which all live in different AFS
> volumes). Now when I’m not connected to the network, every
> invocation of Git, including the __git_ps1 in my shell prompt, waits
> for AFS to timeout.
To allow users to work around this problem, give them a mechanism to
turn off symlink resolution in GIT_CEILING_DIRECTORIES entries. All
the entries that follow an empty entry will not be checked for symbolic
links and used literally in comparison. E.g. with these:
GIT_CEILING_DIRECTORIES=:/foo/bar:/xyzzy or
GIT_CEILING_DIRECTORIES=/foo/bar::/xyzzy
we will not readlink("/xyzzy") because it comes after an empty entry.
With the former (but not with the latter), "/foo/bar" comes after an
empty entry, and we will not readlink it, either.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If you try and update a submodule with a dirty working directory, you
get an error message like:
$ git submodule update
error: Your local changes to the following files would be overwritten by checkout:
...
Please, commit your changes or stash them before you can switch branches.
Aborting
...
Mention this in the submodule notes. The previous phrase was short
enough that I originally thought it might have been referring to the
reflog note (obviously, uncommitted changes will not show up in the
reflog either ;).
Signed-off-by: W. Trevor King <wking@tremily.us>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Less work and more error checking (e.g. does a merge base exist?).
Add an explicit push before request-pull to satisfy request-pull,
which checks to make sure the references are publically available.
Signed-off-by: W. Trevor King <wking@tremily.us>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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I think this interface is often more convenient than extended cherry
picking or using 'git format-patch'. In fact, I removed the
cherry-pick section entirely. The entry-level suggestions for
rerolling are now:
1. git commit --amend
2. git format-patch origin
git reset --hard origin
...edit and reorder patches...
git am *.patch
3. git rebase -i origin
Signed-off-by: W. Trevor King <wking@tremily.us>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We stopped mentioning `tracking` is a deprecated but supported
synonym for `upstream` in pull.default even though we have no
intention of removing the support for it.
* jc/mention-tracking-for-pull-default:
doc: mention tracking for pull.default
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* mm/config-intro-in-git-doc:
git.txt: update description of the configuration mechanism
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Also migration path for the default behaviour of "git add -u/-A" run
in a subdirectory is worth mentioning.
Both pointed out by Matthieu Moy.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Noticed by Drew Northup
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* maint:
user-manual: use -o latest.tar.gz to create a gzipped tarball
user-manual: use 'git config --global user.*' for setup
user-manual: mention 'git remote add' for remote branch config
user-manual: give 'git push -f' as an alternative to +master
user-manual: use 'remote add' to setup push URLs
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This functionality was introduced by 0e804e09 (archive: provide
builtin .tar.gz filter, 2011-07-21) for v1.7.7.
Signed-off-by: W. Trevor King <wking@tremily.us>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A simple command line call is easier than spawning an editor,
especially for folks new to ideas like the "command line" and "text
editors". This is also the approach suggested by 'git commit' if you
try and commit without having configured user.name or user.email.
Signed-off-by: W. Trevor King <wking@tremily.us>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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I hardly ever setup remote.<name>.url using 'git config'. While it
may be instructive to do so, we should also point out 'git remote
add'.
Signed-off-by: W. Trevor King <wking@tremily.us>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This mirrors existing language in the description of 'git fetch'.
Signed-off-by: W. Trevor King <wking@tremily.us>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There is no need to use here documents to setup this configuration.
It is easier, less confusing, and more robust to use `git remote add`
directly.
Signed-off-by: W. Trevor King <wking@tremily.us>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Allow the server side to redact the refs/ namespace it shows to the
client.
Will merge to 'master'.
* jc/hidden-refs:
upload/receive-pack: allow hiding ref hierarchies
upload-pack: simplify request validation
upload-pack: share more code
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Add diff.algorithm configuration so that the user does not type
"diff --histogram".
* mp/diff-algo-config:
diff: Introduce --diff-algorithm command line option
config: Introduce diff.algorithm variable
git-completion.bash: Autocomplete --minimal and --histogram for git-diff
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The old Git version where it appeared is now useful only to historians,
not to normal users. Also, the text was mentioning only the per-repo
config file, but this is a good place to teach that customization can
also be made per-user.
While at it, remove a now-defunct e-mail from an example.
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* wk/man-deny-current-branch-is-default-these-days:
user-manual: Update for receive.denyCurrentBranch=refuse
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The merge at 5bf72ed2 missed another instance of <filepattern> that
we were converting to <pathspec>.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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acd2a45 (Refuse updating the current branch in a non-bare repository
via push, 2009-02-11) changed the default to refuse such a push, but
it forgot to update the docs.
7d182f5 (Documentation: receive.denyCurrentBranch defaults to
'refuse', 2010-03-17) updated Documentation/config.txt, but forgot to
update the user manual.
Signed-off-by: W. Trevor King <wking@tremily.us>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* mg/bisect-doc:
git-bisect.txt: clarify that reset quits bisect
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Add coding guidelines for writing Perl scripts for Git.
* tz/perl-styles:
Update CodingGuidelines for Perl
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* maint:
Replace filepattern with pathspec for consistency
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pathspec is the most widely used term, and is the one defined in
gitglossary.txt. <filepattern> was used only in the synopsys for git-add
and git-commit, and in git-add.txt. Get rid of it.
This patch is obtained with by running:
perl -pi -e 's/filepattern/pathspec/' `git grep -l filepattern`
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"reset" can be easily misunderstood as resetting a bisect session to its
start without finishing it. Clarify that it actually quits the bisect
session.
Reported-by: Andreas Mohr <andi@lisas.de>
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* maint:
user-manual: Rewrite git-gc section for automatic packing
user-manual: Fix 'you - Git' -> 'you--Git' typo
user-manual: Fix 'http' -> 'HTTP' typos
user-manual: Fix 'both: so' -> 'both; so' typo
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Thomas Rast
Bo Yang
Junio C Hamano
Brad King
Greg Price
Michael Haggerty
W. Trevor King
Matthieu Moy
Michael J Gruber