find_header() function is used to read and parse the patchfile
and it detects errors in the patch, but one place ignored the
error and went ahead, which was quite bad.
Noticed by Jeff Garzik.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Running the SHA1_Update() on the whole packfile in a single call
revealed an overflow problem we had in the SHA-1 implementation
on POWER architecture some time ago, which was fixed with commit
b47f509b (June 19, 2006). Other SHA-1 implementations may have
a similar problem.
The sliding mmap() series already makes chunked calls to
SHA1_Update(), so this patch itself will become moot when it
graduates to "master", but in the meantime, run the hash
function in smaller chunks to prevent possible future problems.
Signed-off-by: Junio C Hamano <junkio@cox.net>
It was stupid to link the same element twice to lock_file_list
and end up in a loop, so we certainly need a fix.
But it is not like we are taking a lock on multiple files in
this case. It is just that we leave the linked element on the
list even after commit_lock_file() successfully removes the
cruft.
We cannot remove the list element in commit_lock_file(); if we
are interrupted in the middle of list manipulation, the call to
remove_lock_file_on_signal() will happen with a broken list
structure pointed by lock_file_list, which would cause the cruft
to remain, so not removing the list element is the right thing
to do. Instead we should be reusing the element already on the
list.
There is already a code for that in lock_file() function in
lockfile.c. The code checks lk->next and the element is linked
only when it is not already on the list -- which is incorrect
for the last element on the list (which has NULL in its next
field), but if you read the check as "is this element already on
the list?" it actually makes sense. We do not want to link it
on the list again, nor we would want to set up signal/atexit
over and over.
Signed-off-by: Junio C Hamano <junkio@cox.net>
When parsing the diff line starting with '@@', the line number of the
'+' file is parsed. For the subsequent line parses, the line number
should therefore be incremented after the parse, not before it.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
When comparing file contents during the second loop through a rename
detection attempt we can skip the expensive byte-by-byte comparsion
if both source and destination files have valid SHA1 values. This
improves performance by avoiding either an expensive open/mmap to
read the working tree copy, or an expensive inflate of a blob object.
Unfortunately we still have to at least initialize the sizes of the
source and destination files even if the SHA1 values don't match.
Failing to initialize the sizes causes a number of test cases to fail
and start reporting different copy/rename behavior than was expected.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
If I wanted to print $@, I'd pass $@ to fatal(). This looks like
a stupid typo on my part.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Some versions of the SVN libraries cause die() to exit with 255,
and 40cf043389 tightened up
test_expect_failure to reject return values >128.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Otherwise there're such things like:
Cannot obtain needed none 9a6e87b60dbd2305c95cecce7d9d60f849a0658d
while processing commit 0000000000000000000000000000000000000000.
which while looks weird. What is the none needed for?
Signed-off-by: Junio C Hamano <junkio@cox.net>
Putting NO_FINK or NO_DARWIN_PORTS in config.mak is ignored because the
checks are done before the config is included.
Signed-off-by: Brian Gernhardt <benji@silverinsanity.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
There are some baseless merge cases where git-merge-recursive will
try to compare one of the branches against the empty tree. However
most projects won't have the empty tree object in their object database
as Git does not normally create empty tree objects. If the empty tree
object is missing then the merge process will die, as it cannot load the
object from the database. The error message may make the user think that
their database is corrupt when its actually not.
So instead we should just create the empty tree object whenever it is
needed. If the object already exists as a loose object then no harm
done. Otherwise that loose object will be pruned away later by either
git-prune or git-prune-packed.
Thanks goes to Junio for suggesting this fix.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
git-index-pack can call memcpy with overlapping source and destination
buffers. The patch below makes it use memmove instead.
If you want to demonstrate a failure, add the following two lines
+ if (input_offset < input_len)
+ abort ();
before the existing memcpy call (shown in the patch below),
and then run this:
(cd t; sh ./t5500-fetch-pack.sh)
Signed-off-by: Jim Meyering <jim@meyering.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
No need to install manpages as executable. Noticed by Ville Skytt,Ad(B.
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
At some point between v5.6 and 5.8 Perl started to assume its input,
output and filehandles are UTF-8. This breaks the counting of bytes
for the CVS protocol, resulting in the client expecting less data
than we actually send, and storing truncated files.
Signed-off-by: Martin Langhoff <martin@catalyst.net.nz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
An earlier commit a9cb3c6e changed git-commit to use the
contents of MERGE_MSG even when we do not have MERGE_HEAD (the
rationale is in its log message).
However, the change tricks the following sequence to include a
merge message in a completely unrelated commit:
$ git pull somewhere
: oops, the conflicts are too much. forget it.
$ git reset --hard
: work work work
$ git commit
To fix this confusion, this patch makes "git reset" to remove
the leftover MERGE_MSG that was prepared when the user abandoned
the merge.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Acked-by: Luben Tuikov <ltuikov@yahoo.com
The structure that ends with a flexible array member (or 0
length array with older GCC) "char name[FLEX_ARRAY]" is
allocated on the stack and we use it after clearing its entire
size with memset. That does not guarantee that "name" is
properly NUL terminated as we intended on platforms with more
forgiving structure alignment requirements.
Reported breakage on m68k by Roman Zippel.
Signed-off-by: Junio C Hamano <junkio@cox.net>
A move of a directory should find the entries in the index by
searching for the name _including_ the slash. Otherwise, the
directory can be shadowed by a file when it matches the prefix
and is lexicographically smaller, e.g. "ab.c" shadows "ab/".
Noticed by Sergey Vlasov.
[jc: added Sergey's original reproduction recipe as a test case
at the end of t7001.]
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
SVN is not entirely consistent in returning log information and
sometimes returns file information when adding subdirectories,
and sometimes it does not (only returning information about the
directory that was added). This caused git-svn to occasionally
add a file to the list of files to be fetched twice. Now we
change the data structure to be hash to avoid repeated fetches.
As of now (in master), this only affects repositories fetched
without deltas enabled (file://, and when manually overriden
with GIT_SVN_DELTA_FETCH=0); so this bug mainly affects users of
1.4.4.1 and maint.
Thanks to Florian Weimer for reporting this bug.
[jc: backported for maint]
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Introducing yourself to git early would be a good idea; otherwise
the user may not find the mistake until much later when "git log"
is learned.
Teaching "commit -a" without saying that it is a shortcut for
listing the paths to commit leaves the user puzzled. Teach the
form with explicit paths first.
Signed-off-by: Junio C Hamano <junkio@cox.net>
We lacked "--" termination in the underlying init_revisions() call
which made it impossible to specify a revision that happens to
have the same name as an existing file.
Signed-off-by: Junio C Hamano <junkio@cox.net>
We used to get the case that more than two paths came from the
same commit wrong when computing the output width and deciding
to turn on --show-name option automatically. When we find that
lines that came from a path that is different from what we
started digging from, we should always turn --show-name on, and
we should count the name length for all files involved.
Signed-off-by: Junio C Hamano <junkio@cox.net>
In xemit.c:xdl_emit_diff() a buffer for showing the function name as
commentary is allocated; this buffer was 40 characters. This is a bit
small; particularly for C++ function names where there is often an
identical prefix (like void LongNamespace::LongClassName) on multiple
functions, which makes the context the same everywhere. In other words
the context is useless. This patch increases that buffer to 80
characters - which may still not be enough, but is better
Signed-off-by: Andy Parkins <andyparkins@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Using dcommit could cause the user to lose uncommitted changes
during the reset --hard operation, so change it to reset --mixed.
If dcommit chooses the rebase path, then git-rebase will already
error out when local changes are made.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
some SVN repositories have a revision 0 (committed by no author
and no date) when created; so when we need to ensure that we
check any revision variables are defined, and not just
non-zero.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
dcommit would unconditionally append "~1" to a commit in order
to generate a diff. Now we generate a meaningful error message
if we try to generate an impossible diff.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
We can't rely on sizeof(struct zip_*) returning the sum of
all struct members. At least on ARM padding is added at the
end, as Gerrit Pape reported. This fixes the problem but
still lets the compiler do the summing by introducing
explicit padding at the end of the structs and then taking
its offset as the combined size of the preceding members.
As Junio correctly notes, the _end[] marker array's size
must be greater than zero for compatibility with compilers
other than gcc. The space wasted by the markers can safely
be neglected because we only have one instance of each
struct, i.e. in sum 3 wasted bytes on i386, and 0 on ARM. :)
We still rely on the compiler to not add padding between the
struct members, but that's reasonable given that all of them
are unsigned char arrays.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <junkio@cox.net>
An earlier commit f28b34a broke symlinks when trust-executable-bit
is not set because it incorrectly assumed that everything was a
regular file.
Reported by Juergen Ruehle.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Asciidoc-include it into the manuals for programs that use the
--pretty command-line option, for consistency among the docs.
This describes all the pretty-formats currently listed in the cmit_fmt
enum in commit.h, and also briefly describes the presence and format
of the 'Merge: ' line in some pretty formats.
There's a hedge that limiting your view of history can affect what
goes in the Merge: line, and that --abbrev/--no-abbrev do nothing to
the 'raw' format.
Signed-off-by: Chris Riddoch <chris@syntacticsugar.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Rephrased a sentence in order to make more clear the concept of
pull . branch
Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This tiny patch makes GIT compile again on HP-UX 11i.
[jc: The setlinebuf() is described as unportable to BSD before
4.2; it's not even in POSIX, while setvbuf() is in ISO C.]
Signed-off-by: Michal Rokos <michal.rokos@nextsoft.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
As discussed on git mailing list let's teach the reader about
the possiblity to have automatically signed off the commit running
the git-commit -s command
Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
An earlier commit b37a562a added a check to see if the ref
points at a valid object (as a part of 'negative ref' support
which we currently do not use), but did so only while iterating
over both packed and loose refs, and forgot to apply the same
check while iterating over the remaining ones.
We might want to replace the "if null then omit it" check with
"eh --- what business does a 0{40} value have here?" complaint
later since we currently do not use negative refs, but that is
a separate issue.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This side-ports commit fd19f620 from Cogito, in which I fixed
exactly the same bug. Somehow nobody noticed this for a long
time in git.
Signed-off-by: Junio C Hamano <junkio@cox.net>
For one, the documentation invalidly claimed that the paths have to be
absolute when that's not the case and in fact there is a very valid reason
not to use absolute paths (documented the reason as well).
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
I copied most of the text from git-status.txt.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This patch fixes a sparse warning about inaccurate_eof being a
"dubious one-bit signed bitfield", makes three more binary
variables members of this (now unsigned) bitfield and adds a
short comment to indicate the nature of two ternary variables.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Z_NULL is defined as 0, use a proper NULL pointer in its stead.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <junkio@cox.net>
The declaration of discard_cache() in cache.h already has its "void".
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Unfortunately, git-for-each-refs is currently unusable for peeking into tag
comments, since it uses freed pointers, so it just prints out all sort of
garbage.
This makes it strdup() contents and body values.
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Ok, this is a _really_ stupid case, and I don't think it matters, but hey,
we should never SIGSEGV.
Steps to reproduce:
mkdir duh
cd duh
git init-db
git-fmt-merge-msg < /dev/null
will cause a SIGSEGV in cmd_fmt_merge_msg(), because we're doing a
strncmp() with a NULL current_branch.
And yeah, it's an insane schenario, and no, it doesn't really matter. The
only reason I noticed was that a broken version of my "git pull" into an
empty directory would cause this.
This silly patch just replaces the SIGSEGV with a controlled exit with an
error message.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
We used to complain that we cannot merge anything we fetched
with a local branch that does not exist yet. Just treat the
case as a natural extension of fast forwarding and make the
local branch'es tip point at the same commit we just fetched.
After all an empty repository without an initial commit is an
ancestor of any commit.
[jc: I added a trivial test. We've become sloppy but we should
stick to the discipline of covering new behaviour with new
tests. ]
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Although I converted upstream coreutils to git last month, I just
reconverted coreutils once again, as a test, and ended up with a
git repository of about 130MB (contrast with my packed git repo of
size 52MB). That was because there were a lot of commits (but < 1024)
after the final automatic "git-repack -a -d".
Running a final
git-repack -a -d && git-prune-packed
cut the final repository size down to the expected size.
So this looks like an easy way to improve git-cvsimport.
Just run "git repack ..." at the end if there's more than
some reasonable amount of not-packed data.
My choice of 1MB is a little arbitrarily. I wouldn't mind missing
the minimal repo size by 1MB. At the other end of the spectrum,
it's probably not worthwhile to pack everything when the total
repository size is less than 1MB.
Here's the patch:
Signed-off-by: Jim Meyering <jim@meyering.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Looks like a repo.or.cz-specific change slipped in.
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
