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I'm pulling the error handling used to decode the result of
run_command up into a new function so that I can reuse it.
No changes, just a simple code movement.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Sometimes callers trying to use run_command to execute a child
process will want to setup a pipe or file descriptor to redirect
into the child's stdin.
This idea is completely stolen from builtin-bundle's fork_with_pipe,
written by Johannes Schindelin. All credit (and blame) should lie
with Dscho. ;-)
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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If the calling process wants to send data to stdin of a
child process it will need to arrange for a pipe and get
the child process running, feed data to it, then wait
for the child process to finish. So we split the run
function into two halves, allowing callers to first
start the child then later finish it.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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There are a number of places where we do some variation of
fork()+exec() but we also need to setup redirection in the process,
much like what run_command does for us already with its option flags.
It would be nice to reuse more of the run_command logic, especially
as that non-fork API helps us to port to odd platforms like Win32.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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We don't actually use these va_list based variants of run_command
anymore. I'm removing them before I make further improvements.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Another change by me is removing the va_list variants of run_command,
one of which is used by builtin-revert.c. To avoid compile errors
I'm refactoring builtin-revert to use the char** variant instead,
as that variant is staying.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Using Update-existing leads to the client forgetting about the "locally
modified" status of the file which can lead to loss of local changes on
later updates.
Signed-off-by: Frank Lichtenheld <frank@lichtenheld.de>
Acked-by: Martin Langhoff <martin.langhoff@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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a try, but all I could get was a segfault. It was dereferencing a NULL
commit list. Fix below. With it, this example now works:
$ mkdir .j; cd .j; touch f
$ git-init; git-add f; git-commit -mc f; echo x >f; git-commit -md f
$ git-diff -p :/c :/d
diff --git a/f b/f
index e69de29..587be6b 100644
--- a/f
+++ b/f
@@ -0,0 +1 @@
+x
Signed-off-by: Jim Meyering <jim@meyering.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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* js/attach:
format-patch --attach: not folding some long headers.
format-patch: add --inline option and make --attach a true attachment
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* js/diff-ni:
Get rid of the dependency to GNU diff in the tests
diff --no-index: support /dev/null as filename
diff-ni: fix the diff with standard input
diff: support reading a file from stdin via "-"
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* jc/fsck:
fsck: exit with non-zero status upon errors
unpack_sha1_file(): detect corrupt loose object files.
fsck: fix broken loose object check.
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* pb/commit-i:
git-commit: add a --interactive option
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* js/revert-cherry:
cherry-pick: Bug fix 'cherry picked from' message.
cherry-pick: Suggest a better method to retain authorship
Make git-revert & git-cherry-pick a builtin
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* sp/make:
Allow "make -w" generate its usual output
Support of "make -s": do not output anything of the build itself
More build output cleaning up
Make 'make' quiet by default
Make 'make' quieter while building git
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* maint:
git.el: Retrieve commit log information from .dotest directory.
git.el: Avoid appending a signoff line that is already present.
setup_git_directory_gently: fix off-by-one error
user-manual: install user manual stylesheet with other web documents
user-manual: fix rendering of history diagrams
user-manual: fix missing colon in git-show example
user-manual: fix inconsistent use of pull and merge
user-manual: fix inconsistent example
glossary: fix overoptimistic automatic linking of defined terms
Documentation: s/seperator/separator/
Adjust reflog filemode in shared repository
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If a git-am or git-rebase is in progress, fill the commit log buffer
from the commit information found in the various files in the .dotest
directory.
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Also avoid inserting an extra newline if other signoff lines are
present.
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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don't tell getcwd that the buffer has one spare byte for an extra /
Signed-off-by: Matthias Lederhofer <matled@gmx.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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* 'maint' of git://linux-nfs.org/~bfields/git:
user-manual: install user manual stylesheet with other web documents
user-manual: fix rendering of history diagrams
user-manual: fix missing colon in git-show example
user-manual: fix inconsistent use of pull and merge
user-manual: fix inconsistent example
glossary: fix overoptimistic automatic linking of defined terms
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Install the stylesheet needed for the user manual. This should solve
the problem of, e.g.,
http://www.kernel.org/pub/software/scm/git/docs/user-manual.html
lacking a lot of formatting.
Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
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Asciidoc appears to interpret a backslash at the end of a line as
escaping the end-of-line character, which screws up the display of
history diagrams like
o--o--o
\
o--...
The obvious fix (replacing "\" by "\\") doesn't work. The only
workaround I've found is to include all such diagrams in a LiteralBlock.
Asciidoc claims that should be equivalent to a literal paragraph, so I
don't understand why the difference--perhaps it's an asciidoc bug.
Cc: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
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There should be a colon in this git-show example.
Cc: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
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I used "git pull ." instead of "git merge" here without any explanation.
Stick instead to "git merge" for now (the equivalent pull syntax is
still covered in a later chapter).
Cc: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
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The configuration file fragment here is inconsistent with the text
above. Thanks to Ramsay Jones for the correction.
Cc: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
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The script sort_glossary.pl turns each use of "term" into a link to the
definition of "term". To avoid mangling links like
gitlink:git-term[1]
it doesn't replace any occurence of "term" preceded by "link:git-".
This fails for gitlink:git-symbolic-ref[1] when substituting for "ref".
So instead just refuse to replace anything preceded by a "-".
That could result in missing some opportunities, but that's a less
annoying error.
Actually I find the automatic substitution a little distracting; some
day maybe we should just run it once and commit the result, so it can
be hand-tuned.
Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
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Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Without this, committing in a group-shared repository would not work
even though all developers are in the same group.
Signed-off-by: Matthias Kestenholz <matthias@spinlock.ch>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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The --interactive option behaves like "git commit", except that
"git add --interactive" is executed before committing. It is
incompatible with -a and -i.
Signed-off-by: Paolo Bonzini <bonzini@gnu.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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* js/config-rename:
git-config: document --rename-section, provide --remove-section
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* 'master' of git://repo.or.cz/git/fastimport:
Allow fast-import frontends to reload the marks table
Use atomic updates to the fast-import mark file
Preallocate memory earlier in fast-import
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I'm giving fast-import a lesson on how to reload the marks table
using the same format it outputs with --export-marks. This way
a frontend can reload the marks table from a prior import, making
incremental imports less painful.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
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When we allow fast-import frontends to reload a mark file from a
prior session we want to let them use the same file as they exported
the marks to. This makes it very simple for the frontend to save
state across incremental imports.
But we don't want to lose the old marks table if anything goes wrong
while writing our current marks table. So instead of truncating and
overwriting the path specified to --export-marks we use the standard
lockfile code to write the current marks out to a temporary file,
then rename it over the old marks table.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
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Bill Lear pointed out that it is easy to send out notifications of
changes with the update hook, but successful execution of the update
hook does not necessarily mean that the ref was actually updated.
Lock contention on the ref or being unable to append to the reflog
may prevent the ref from being changed. Sending out notifications
prior to the ref actually changing is very misleading.
To help this situation I am introducing two new hooks to the
receive-pack flow: pre-receive and post-receive. These new hooks
are invoked only once per receive-pack execution and are passed
three arguments per ref (refname, old-sha1, new-sha1).
The new post-receive hook is ideal for sending out notifications,
as it has the complete list of all refnames that were successfully
updated as well as the old and new SHA-1 values. This allows more
interesting notifications to be sent. Multiple ref updates could
be easily summarized into one email, for example.
The new pre-receive hook is ideal for logging update attempts, as it
is run only once for the entire receive-pack operation. It can also
be used to verify multiple updates happen at once, e.g. an update
to the `maint` head must also be accompained by a new annotated tag.
Lots of documentation improvements for receive-pack are included
in this change, as we want to make sure the new hooks are clearly
explained.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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I discovered we did not send an ng line in the report-status feedback
if the ref was not updated because the repository has the config
option receive.denyNonFastForwards enabled. I think the reason this
happened is that it is simply too easy to forget to set error_string
when returning back a failure from update()
We now return an ng line for a non-fastforward update, which in
turn will cause send-pack to exit with a non-zero exit status.
Hence the modified test.
This refactoring changes update to return a const char* describing
the error, which execute_commands always loads into error_string.
The result is what I think is cleaner code, and allows us to
initialize the error_string member to NULL when we read_head_info.
I want error_string to be NULL in all commands before we call
execute_commands, so that we can reuse the run_hook function to
execute a new pre-receive hook.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This is a simple refactoring of run_update_hook to allow the function
to be passed the name of the hook it runs and also to build the
argument list from a list of struct commands, rather than just one
struct command.
The refactoring is to support new pre-receive and post-receive
hooks that will be given the entire list of struct commands,
rather than just one struct command. These new hooks will follow
in another patch.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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There is little point in executing the post-update hook if all refs
had an error and were unable to be updated. In this case nothing
new is reachable within the repository, and there is no state change
for the post-update hook to be interested in.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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As the post-update hook is meant to run after we have completed the
receipt of the pushed changes, and it might actually try to kick off
a `repack -a -d`, we should delay on invoking it until after we have
removed the *.keep file on the uploaded pack (if we kept the pack).
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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* maint:
Catch write_ref_sha1 failure in receive-pack
make t8001 work on Mac OS X again
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I'm about to teach fast-import how to reload the marks file created
by a prior session. The general approach that I want to use is to
immediately parse the marks file when the specific argument is found
in argv, thereby allowing the caller to supply multiple marks files,
as the mark space can be sparsely populated.
To make that work out we need to allocate our object tables before
we parse the command line options. Since none of these tables
depend on the command line options, we can easily relocate them.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
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Some systems have sizeof(off_t) == 8 while sizeof(size_t) == 4.
This implies that we are able to access and work on files whose
maximum length is around 2^63-1 bytes, but we can only malloc or
mmap somewhat less than 2^32-1 bytes of memory.
On such a system an implicit conversion of off_t to size_t can cause
the size_t to wrap, resulting in unexpected and exciting behavior.
Right now we are working around all gcc warnings generated by the
-Wshorten-64-to-32 option by passing the off_t through xsize_t().
In the future we should make xsize_t on such problematic platforms
detect the wrapping and die if such a file is accessed.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Always use an off_t value in pack-objects anytime we are dealing
with an offset to some data within a packfile.
Also fixed a minor uintmax_t that was incorrectly defined before.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Not all platforms have declared 'unsigned long' to be a 64 bit value,
but we want to support a 64 bit packfile (or close enough anyway)
in the near future as some projects are getting large enough that
their packed size exceeds 4 GiB.
By using off_t, the POSIX type that is declared to mean an offset
within a file, we support whatever maximum file size the underlying
operating system will handle. For most modern systems this is up
around 2^60 or higher.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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As we technically try to support up to a maximum of 2**32-1 objects
in a single packfile we should act like it and use unsigned 32 bit
integers for all of our object counts and progress output.
This change does not modify everything in pack-objects that probably
needs to change to fully support the maximum of 2**32-1 objects.
I'm intentionally breaking the improvements into slightly smaller
commits to make them easier to follow.
No logic change should be occuring here, with the exception that
some comparsions will now work properly when the number of objects
exceeds 2**31-1.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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As we permit up to 2^32-1 objects in a single packfile we cannot
use a signed int to represent the object offset within a packfile,
after 2^31-1 objects we will start seeing negative indexes and
error out or compute bad addresses within the mmap'd index.
This is a minor cleanup that does not introduce any significant
logic changes. It is roach free.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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We shouldn't attempt to assign constant strings into char*, as the
string is not writable at runtime. Likewise we should always be
treating unsigned values as unsigned values, not as signed values.
Most of these are very straightforward. The only exception is the
(unnecessary) xstrdup/free in builtin-branch.c for the detached
head case. Since this is a user-level interactive type program
and that particular code path is executed no more than once, I feel
that the extra xstrdup call is well worth the easy elimination of
this warning.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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If an index is corrupt, or is simply too new for us to understand,
we were leaking the mmap that held the entire content of the index.
This could be a considerable size on large projects, given that
the index is at least 24 bytes * nr_objects.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Because we are currently cheating and never supplying the delta base
for an OBJ_OFS_DELTA we get a random SHA-1 in the delta base field.
Instead lets clear the hash out so its at least all 0's. This is
somewhat more obvious that something fishy is going on, like we
don't actually have the SHA-1 of the base handy. :)
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This patch adds support to archimport for remapping the branch
names to match those used in git more closely. This is useful
for projects that migrate to git (as opposed to users that want
to use git on Arch-based projects). For example, one can choose
an Arch branch name and call it "master".
The new command-line syntax works even if there is a colon in
a branch name, since only the part after the last colon is taken
to be the git name (git does not allow colons in branch names).
The new feature is implemented so that archives rotated every
year can also be remapped into a single git archive.
Signed-off-by: Paolo Bonzini <bonzini@gnu.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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They test the behaviour with just a URL in the command line.
Signed-off-by: Santi B,Ai(Bjar <sbejar@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Shawn O. Pearce
Frank Lichtenheld
Jim Meyering
Junio C Hamano
Alexandre Julliard
Matthias Lederhofer
J. Bruce Fields
Jeff King
Matthias Kestenholz
Paolo Bonzini
Santi B,Ai(Bjar