CRLF conversion bears a slight chance of corrupting data.
autocrlf=true will convert CRLF to LF during commit and LF to
CRLF during checkout. A file that contains a mixture of LF and
CRLF before the commit cannot be recreated by git. For text
files this is the right thing to do: it corrects line endings
such that we have only LF line endings in the repository.
But for binary files that are accidentally classified as text the
conversion can corrupt data.
If you recognize such corruption early you can easily fix it by
setting the conversion type explicitly in .gitattributes. Right
after committing you still have the original file in your work
tree and this file is not yet corrupted. You can explicitly tell
git that this file is binary and git will handle the file
appropriately.
Unfortunately, the desired effect of cleaning up text files with
mixed line endings and the undesired effect of corrupting binary
files cannot be distinguished. In both cases CRLFs are removed
in an irreversible way. For text files this is the right thing
to do because CRLFs are line endings, while for binary files
converting CRLFs corrupts data.
This patch adds a mechanism that can either warn the user about
an irreversible conversion or can even refuse to convert. The
mechanism is controlled by the variable core.safecrlf, with the
following values:
- false: disable safecrlf mechanism
- warn: warn about irreversible conversions
- true: refuse irreversible conversions
The default is to warn. Users are only affected by this default
if core.autocrlf is set. But the current default of git is to
leave core.autocrlf unset, so users will not see warnings unless
they deliberately chose to activate the autocrlf mechanism.
The safecrlf mechanism's details depend on the git command. The
general principles when safecrlf is active (not false) are:
- we warn/error out if files in the work tree can modified in an
irreversible way without giving the user a chance to backup the
original file.
- for read-only operations that do not modify files in the work tree
we do not not print annoying warnings.
There are exceptions. Even though...
- "git add" itself does not touch the files in the work tree, the
next checkout would, so the safety triggers;
- "git apply" to update a text file with a patch does touch the files
in the work tree, but the operation is about text files and CRLF
conversion is about fixing the line ending inconsistencies, so the
safety does not trigger;
- "git diff" itself does not touch the files in the work tree, it is
often run to inspect the changes you intend to next "git add". To
catch potential problems early, safety triggers.
The concept of a safety check was originally proposed in a similar
way by Linus Torvalds. Thanks to Dimitry Potapov for insisting
on getting the naked LF/autocrlf=true case right.
Signed-off-by: Steffen Prohaska <prohaska@zib.de>
The prepare-commit-msg hook is run whenever a "fresh" commit message
is prepared, just before it is shown in the editor (if it is).
Its purpose is to modify the commit message in-place.
It takes one to three parameters. The first is the name of the file that
the commit log message. The second is the source of the commit message,
and can be: "message" (if a -m or -F option was given); "template" (if a
-t option was given or the configuration option commit.template is set);
"merge" (if the commit is a merge or a .git/MERGE_MSG file exists);
"squash" (if a .git/SQUASH_MSG file exists); or "commit", followed by
a commit SHA1 as the third parameter (if a -c, -C or --amend option
was given).
If its exit status is non-zero, git-commit will abort. The hook is
not suppressed by the --no-verify option, so it should not be used
as a replacement for the pre-commit hook.
The sample prepare-commit-msg comments out the `Conflicts:` part of
a merge's commit message; other examples are commented out, including
adding a Signed-off-by line at the bottom of the commit messsage,
that the user can then edit or discard altogether.
Signed-off-by: Paolo Bonzini <bonzini@gnu.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This patch moves the code of run_commit, up to writing the trees, editing
the message and running the commit-msg hook to prepare_log_message. It also
renames the latter to prepare_to_commit.
This simplifies a little the code for the next patch.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is a preparatory patch that provides a simple way for the future
prepare-commit-msg hook to discover if the editor will be launched.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Since a64d7784e8 git merge doesn't use cpio
anymore, adapt the documentation.
Signed-off-by: Gerrit Pape <pape@smarden.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When DEFAULT_GIT_TEMPLATE_DIR is specified as a relative path,
init-db made it relative to exec_path using prefix_path(), which
is wrong. prefix_path() is about a file inside the work tree.
There was a similar misuse in config.c that takes relative
ETC_GITCONFIG path. Noticed by Junio C Hamano.
We concatenate the paths manually. (prefix_filename() won't do
because it expects a prefix with a trailing '/'.)
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The value of this new command line option will be used as a key to
check the configuration for an help browser.
This should remove the last bit in 'git-help--browse' that was
specific to 'git-help', so that other git command can use
'git-help--browse'.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git-help--browse" helper is to launch a browser of the user's choice
to view the HTML version of git documentation for a given command. It
used to take the name of a command, convert it to the path of the
documentation by prefixing the directory name and appending the
".html" suffix, and start the browser on the path.
This updates the division of labor between the caller in help.c and
git-help--browser helper. The helper is now responsible for launching
a browser of the user's choice on given URLs, and it is the caller's
responsibility to tell it the paths to documentation files.
This is in preparation to reuse the logic to choose user's preferred
browser in instaweb.
The helper had a provision for running it without any command name, in
which case it showed the toplevel "git(7)" documentation, but the
caller in help.c never makes such a call. The helper now exits with a
usage message when no path is given.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When we process "foo/" entries in gitignore files on a system
that does not have d_type member in "struct dirent", the earlier
implementation ran lstat(2) separately when matching with
entries that came from the command line, in-tree .gitignore
files, and $GIT_DIR/info/excludes file.
This optimizes it by delaying the lstat(2) call until it becomes
absolutely necessary.
The initial idea for this change was by Jeff King, but I
optimized it further to pass pointers to around.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
A pattern "foo/" in the exclude list did not match directory
"foo", but a pattern "foo" did. This attempts to extend the
exclude mechanism so that it would while not matching a regular
file or a symbolic link "foo". In order to differentiate a
directory and non directory, this passes down the type of path
being checked to excluded() function.
A downside is that the recursive directory walk may need to run
lstat(2) more often on systems whose "struct dirent" do not give
the type of the entry; earlier it did not have to do so for an
excluded path, but we now need to figure out if a path is a
directory before deciding to exclude it. This is especially bad
because an idea similar to the earlier CE_UPTODATE optimization
to reduce number of lstat(2) calls would by definition not apply
to the codepaths involved, as (1) directories will not be
registered in the index, and (2) excluded paths will not be in
the index anyway.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
There are a few options to git-send-email to suppress the automatic
generation of 'Cc' fields: --suppress-from, and --signed-off-cc.
However, there are other times that git-send-email automatically
includes Cc'd recipients. This is not desirable for all development
environments.
Add a new option --suppress-cc, which can be specified one or more
times to list the categories of auto-cc fields that should be
suppressed. If not specified, it defaults to values to give the same
behavior as specified by --suppress-from, and --signed-off-cc. The
categories are:
self - patch sender. Same as --suppress-from.
author - patch author.
cc - cc lines mentioned in the patch.
cccmd - avoid running the cccmd.
sob - signed off by lines.
all - all non-explicit recipients
Signed-off-by: David Brown <git@davidb.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This shares the connection between getting the remote ref list and
getting objects in the first batch. (A second connection is still used
to follow tags).
When we do not fetch objects (i.e. either ls-remote disconnects after
getting list of refs, or we decide we are already up-to-date), we
clean up the connection properly; otherwise the connection is left
open in need of cleaning up to avoid getting an error message from
the remote end when ssh is used.
Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The original "rewrite in C" did somewhat a sloppy job while
stealing code from git-write-tree.
The caller pretends as if the write_tree() function would return
an error code and being able to issue a sensible error message
itself, but write_tree() function just calls die() and never
returns an error. Worse yet, the function claims that it was
running git-write-tree (which is no longer true after
cherry-pick stole it).
Tested-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We used to talk about "internal company procedures", but this
document is about submitting patches to the git mailing list.
More useful information is when to say Acked-by: and Tested-by:.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is something I've had in mind for some time. I get enough
e-mails as-is, and I suspect the workflow to get list members
involved would work better if we get the discussion concluded on
the list first before patches hit my tree (even 'next').
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Before, when the user sent the EOF control character, the
prompts would be repeated on the same line as the previous
prompt.
Now, repeat prompts display on separate lines.
Signed-off-by: Michael Witten <mfwitten@mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
A single signal handler is used for both SIGTERM and
SIGINT in order to clean up after an uncouth termination
of git-send-email.
In particular, the handler resets the text color (this cleanup
was already present), turns on tty echoing (in case termination
occurrs during a masked Password prompt), and informs the user
of of any temporary files created by --compose.
Signed-off-by: Michael Witten <mfwitten@mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Whilst convenient, it is most unwise to record passwords
in any place but one's brain. Moreover, it is especially
foolish to store them in configuration files, even with
access permissions set accordingly.
git-send-email has been amended, so that if it detects
an smtp username without a password, it promptly prompts
for the password and masks the input for privacy.
Furthermore, the argument to --smtp-pass has been rendered
optional.
The documentation has been updated to reflect these changes.
Signed-off-by: Michael Witten <mfwitten@mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jakub Narebski <jnareb@gmail.com> wrote Sun, Feb 03, 2008:
> Junio C Hamano wrote:
> > Jakub Narebski <jnareb@gmail.com> writes:
> >
> > [From] http://thread.gmane.org/gmane.comp.version-control.git/53457/focus=53458
> Julian Phillips:
> > Are you using docbook xsl 1.72? There are known problems building the
> > manpages with that version. 1.71 works, and 1.73 should work when it get
> > released.
I was able to solve this problem with this patch, which adds a XSL file
used specifically for DOCBOOK_XSL_172=YesPlease and where dots and
backslashes are escaped properly so they won't be substituted to the
wrong thing further down the "DocBook XSL pipeline". Doing the escaping
in the existing callout.xsl breaks v1.70.1. Hopefully v1.73 will end
this part of the manpage nightmare.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When DEFAULT_GIT_TEMPLATE_DIR is specified as a relative path,
init-db made it relative to exec_path using prefix_path(), which
is wrong. prefix_path() is about a file inside the work tree.
There was a similar misuse in config.c that takes relative
ETC_GITCONFIG path.
A convenience function prefix_filename() can concatenate two paths
to form a path that points at somewhere outside the work tree.
Use it in these codepaths instead.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In the case of an malformed object, the object specific parsing functions
would return an error, which is currently ignored. The object can be partial
initialized in this case.
This patch make parse_object_buffer propagate such errors.
Signed-off-by: Martin Koegler <mkoegler@auto.tuwien.ac.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
A zero commit date could be caused by:
* a missing author line
* a missing commiter line
* a malformed email address in the commiter line
* a malformed commit date
Simply reporting it as zero commit date is missleading.
Additionally, it upgrades the message to an error (instead of an printf).
Signed-off-by: Martin Koegler <mkoegler@auto.tuwien.ac.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In the text, the argument of -m is <master> which should be used in the
command synopsis, too.
Signed-off-by: Jörg Sommer <joerg@alea.gnuu.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The regexp "$," can't match anything. Clearly not intended.
This was introduced in ce6f33c8 which is quite a while ago.
Signed-off-by: Tommy Thorn <tommy-git@thorn.ws>
Acked-by: Simon Hausmann <simon@lst.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Let "git svn" run "git gc --auto" every 1000 imported commits to
reduce the number of loose objects.
To handle the common use case of frequent imports, where each
invocation typically fetches much less than 1000 commits, also run gc
unconditionally at the end of the import.
"1000" is the same number that was used by default when we called
git-repack. It isn't necessarily still the best choice.
Signed-off-by: Karl Hasselström <kha@treskal.com>
Acked-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In a moment, we'll start calling git-gc --auto instead, since it is a
better fit to what we're trying to accomplish.
The command line options are still accepted, but don't have any
effect, and we warn the user about that.
Signed-off-by: Karl Hasselström <kha@treskal.com>
Acked-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This patch removes the '$Keyword: ...$' '...' data, so that files
don't have spurious megre conflicts between branches.
Handles both +ko and +k styles, and leaves the '$Foo$' in
the original file.
Signed-off-by: Simon Hausmann <simon@lst.de>
The scripted version might not have handled this correctly
either, but the version rewritten in C definitely does not grok
this and complains $tag is not a commit object.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Adjust the command syntax to better reflect the call parameters:
[save] [message...] => [save [<message>]].
Signed-off-by: Jari Aalto <jari.aalto AT cante.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is the absolute minimum (and reliable) reproduction recipe
to demonstrate that revision range in a history with clock skew
sometimes fails to mark UNINTERESTING commit in topologically
early parts of the history.
The history looks like this:
o---o---o---o
one four
but one has the largest timestamp. "git rev-list four..one"
fails to notice that "one" should not be emitted.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When we have known breakages, we still said "passed all N
test(s)", which was a bit funny.
This rewords it to read "passed all remaining N test(s)" in such
a case.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Originally, test_expect_failure was designed to be the opposite
of test_expect_success, but this was a bad decision. Most tests
run a series of commands that leads to the single command that
needs to be tested, like this:
test_expect_{success,failure} 'test title' '
setup1 &&
setup2 &&
setup3 &&
what is to be tested
'
And expecting a failure exit from the whole sequence misses the
point of writing tests. Your setup$N that are supposed to
succeed may have failed without even reaching what you are
trying to test. The only valid use of test_expect_failure is to
check a trivial single command that is expected to fail, which
is a minority in tests of Porcelain-ish commands.
This large-ish patch rewrites all uses of test_expect_failure to
use test_expect_success and rewrites the condition of what is
tested, like this:
test_expect_success 'test title' '
setup1 &&
setup2 &&
setup3 &&
! this command should fail
'
test_expect_failure is redefined to serve as a reminder that
that test *should* succeed but due to a known breakage in git it
currently does not pass. So if git-foo command should create a
file 'bar' but you discovered a bug that it doesn't, you can
write a test like this:
test_expect_failure 'git-foo should create bar' '
rm -f bar &&
git foo &&
test -f bar
'
This construct acts similar to test_expect_success, but instead
of reporting "ok/FAIL" like test_expect_success does, the
outcome is reported as "FIXED/still broken".
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Because ':/substring' extended SHA1 expression cannot take
postfix modifiers such as ^{tree} and ^{commit}, we would need
to do it in multiple steps. With the patch, you can start a new
branch from a randomly-picked commit whose message has the named
string in it.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
