* lt/fix-sol-pack:
Use sigaction and SA_RESTART in read-tree.c; add option in Makefile.
safe_fgets() - even more anal fgets()
pack-objects: be incredibly anal about stdio semantics
Fix Solaris stdio signal handling stupidities
This replaces occurences of "blob", "commit", "tag", and "tree",
where they're really used as type specifiers, which we already
have defined global constants for.
Signed-off-by: Peter Eriksen <s022018@student.dtu.dk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Bugs like the last one could've been avoided if it weren't for
this...
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
fetching from repos without an authors-file defined was broken.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Might as well ape the sigaction change in read-tree.c to avoid
the same potential problems. The fprintf status output will
be overwritten in a second, so don't bother guarding it. Do
move the fputc after disabling SIGALRM to ensure we go to the
next line, though.
Also add a NO_SA_RESTART option in the Makefile in case someone
doesn't have SA_RESTART but does restart (maybe older HP/UX?).
We want the builder to chose this specifically in case the
system both lacks SA_RESTART and does not restart stdio calls;
a compat #define in git-compat-utils.h would silently allow
broken systems.
Signed-off-by: Jason Riedy <ejr@cs.berkeley.edu>
Signed-off-by: Junio C Hamano <junkio@cox.net>
* jc/clone:
git-clone: fix handling of upsteram whose HEAD does not point at master.
fix repacking with lots of tags
Documentation: revise top of git man page
When cloning from a remote repository that has master, main, and
origin branches _and_ with the HEAD pointing at main branch, we
did quite confused things during clone. So this cleans things
up. The behaviour is a bit different between separate remotes/
layout and the mixed branches layout.
The newer layout with $GIT_DIR/refs/remotes/$origin/, things are
simpler and more transparent:
- remote branches are copied to refs/remotes/$origin/.
- HEAD points at the branch with the same name as the remote
HEAD points at, and starts at where the remote HEAD points at.
- $GIT_DIR/remotes/$origin file is set up to fetch all remote
branches, and merge the branch HEAD pointed at at the time of
the cloning.
Everything-in-refs/heads layout was the more confused one, but
cleaned up like this:
- remote branches are copied to refs/heads, but the branch
"$origin" is not copied, instead a copy of the branch the
remote HEAD points at is created there.
- HEAD points at the branch with the same name as the remote
HEAD points at, and starts at where the remote HEAD points at.
- $GIT_DIR/remotes/$origin file is set up to fetch all remote
branches except "$origin", and merge the branch HEAD pointed
at at the time of the cloning.
With this, the remote has master, main and origin, and its HEAD
points at main, you could:
git clone $URL --origin upstream
to use refs/heads/upstream as the tracking branch for remote
"main", and your primary working branch will also be "main".
"master" and "origin" are used to track the corresponding remote
branches and with this setup they do not have any special meaning.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Use git-rev-list's --all instead of git-rev-parse's to keep from
hitting the shell's argument list length limits when repacking
with lots of tags.
Signed-off-by: Junio C Hamano <junkio@cox.net>
I'm afraid I'll be accused of trying to suck all the jokes and the
personality out of the git documentation. I'm not! Really!
That said, "man git" is one of the first things a new user is likely try,
and it seems a little cruel to start off with a somewhat obscure joke
about the architecture of git.
So instead I'm trying for a relatively straightforward description of what
git does, and what features distinguish it from other systems, together
with immediate links to introductory documentation.
I also did some minor reorganization in an attempt to clarify the
classification of commands. And revised a bit for conciseness (as is
obvious from the diffstat--hopefully I didn't cut anything important).
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Junio C Hamano <junkio@cox.net>
* lt/fix-sol-pack:
pack-objects: be incredibly anal about stdio semantics
Fix Solaris stdio signal handling stupidities
Signed-off-by: Junio C Hamano <junkio@cox.net>
This is the "letter of the law" version of using fgets() properly in the
face of incredibly broken stdio implementations. We can work around the
Solaris breakage with SA_RESTART, but in case anybody else is ever that
stupid, here's the "safe" (read: "insanely anal") way to use fgets.
It probably goes without saying that I'm not terribly impressed by
Solaris libc.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This uses sigaction() to install the SIGALRM handler with SA_RESTART, so
that Solaris stdio doesn't break completely when a signal interrupts a
read.
Thanks to Jason Riedy for confirming the silly Solaris signal behaviour.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
buf is not used afterwards. The compiler optimized the dead store out
anyway, but let's clean the source, too.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This will make it easier to switch between views efficiently, and
turns out to be slightly faster as well.
Signed-off-by: Paul Mackerras <paulus@samba.org>
contrib/git-svn/git-svn.txt:
added git-repo-config key names for options
fixed quoting of "git-svn-HEAD" in the manpage
use preformatted text for examples
contrib/git-svn/Makefile:
add target to generate HTML:
http://git-svn.yhbt.net/git-svn.html
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
repo-config keys are any of the long option names minus the '-'
characters
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This just moves code around to consolidate the part that sets
revs->limited to one place based on various flags.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Now, using --unpacked without limit_list() does not make much
sense, but this is parallel to the earlier --max-age fix.
Signed-off-by: Junio C Hamano <junkio@cox.net>
What ends up not working very well at all is the combination of
"--topo-order" and the output filter in get_revision. It will
return NULL when we see the first commit out of date-order, even
if we have other commits coming.
So we really should do the "past the date order" thing in
get_revision() only if we have _not_ done it already in
limit_list().
Something like this.
The easiest way to test this is with just
gitk --since=3.days.ago
on the kernel tree. Without this patch, it tends to be pretty obviously
broken.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This makes git-rev-list able to do path-limiting without having to parse
all of history before it starts showing the results.
This makes things like "git log -- pathname" much more pleasant to use.
This is actually a pretty small patch, and the biggest part of it is
purely cleanups (turning the "goto next" statements into "continue"), but
it's conceptually a lot bigger than it looks.
What it does is that if you do a path-limited revision list, and you do
_not_ ask for pseudo-parenthood information, it won't do all the
path-limiting up-front, but instead do it incrementally in
"get_revision()".
This is an absolutely huge deal for anything like "git log -- <pathname>",
but also for some things that we don't do yet - like the "find where
things changed" logic I've described elsewhere, where we want to find the
previous revision that changed a file.
The reason I put "RFC" in the subject line is that while I've validated it
various ways, like doing
git-rev-list HEAD -- drivers/char/ | md5sum
before-and-after on the kernel archive, it's "git-rev-list" after all. In
other words, it's that really really subtle and complex central piece of
software. So while I think this is important and should go in asap, I also
think it should get lots of testing and eyeballs looking at the code.
Btw, don't even bother testing this with the git archive. git itself is so
small that parsing the whole revision history for it takes about a second
even with path limiting. The thing that _really_ shows this off is doing
git log drivers/
on the kernel archive, or even better, on the _historic_ kernel archive.
With this change, the response is instantaneous (although seeking to the
end of the result will obviously take as long as it ever did). Before this
change, the command would think about the result for tens of seconds - or
even minutes, in the case of the bigger old kernel archive - before
starting to output the results.
NOTE NOTE NOTE! Using path limiting with things like "gitk", which uses
the "--parents" flag to actually generate a pseudo-history of the
resulting commits won't actually see the improvement in interactivity,
since that forces git-rev-list to do the whole-history thing after all.
MAYBE we can fix that too at some point, but I won't promise anything.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Not only do we do it in both rev-list.c and git.c, the revision walking
code will soon want to know whether we should rewrite parenthood
information or not.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
The dependency was not properly updated when we added this
library, breaking parallel build with $(MAKE) -j.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Marco reported that
$ git rev-list --boundary --topo-order --parents 5aa44d5..ab57c8d
misses these two boundary commits.
c649657501eb38cc689e
Indeed, we can see that gitk shows these two commits at the
bottom, because the --boundary code failed to output them.
The code did not check to avoid pushing the same uninteresting
commit twice to the result list. I am not sure why this fixes
the reported problem, but this seems to fix it.
Signed-off-by: Junio C Hamano <junkio@cox.net>
* git://git.kernel.org/pub/scm/gitk/gitk:
gitk: Better workaround for arrows on diagonal line segments
gitk: Allow top panes to scroll horizontally with mouse button 2
gitk: Prevent parent link from overwriting commit headline
gitk: Show diffs for boundary commits
gitk: Use the new --boundary flag to git-rev-list
Instead of adding extra padding to create a vertical line segment at
the lower end of a line that has an arrow, this now just draws a very
short vertical line segment at the lower end. This alternative
workaround for the Tk8.4 behaviour (not drawing arrows on diagonal
line segments) doesn't have the problem of making the graph very wide
when people do a lot of merges in a row (hi Junio :).
Signed-off-by: Paul Mackerras <paulus@samba.org>
We chdir internally, so we need a consistent GIT_DIR variable.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
git-clone without a repo isn't useful at all. print message and get
out asap.
This patch also move the variable 'local' to where other variables are
initialized.
Signed-off-by: Yasushi SHOJI <yashi@atmark-techno.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
git-clone currently take option '-o' to specify origin. this patch
makes git-clone to take double-dashed option '--origin' and other
abbreviations in addtion to the current single-dashed option.
[jc: with minor fixups]
Signed-off-by: Yasushi SHOJI <yashi@atmark-techno.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
When I made drawlineseg responsible for drawing the link to the first
child rather than drawparentlinks, that meant that the right-most X
value computed by drawparentlinks didn't include those first-child
links, and thus the first-child link could go over the top of the
commit headline. This fixes it.
Signed-off-by: Paul Mackerras <paulus@samba.org>
With this we run git-diff-tree on a commit even if we think it has
no parents, either because it really has no parents or because it
is a boundary commit. This means that gitk shows the diff for a
boundary commit when it is selected.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Introduce tree-walk.[ch] and move "struct tree_desc" and
associated functions from various places.
Rename DIFF_FILE_CANON_MODE(mode) macro to canon_mode(mode) and
move it to cache.h. This macro returns the canonicalized
st_mode value in the host byte order for files, symlinks and
directories -- to be compared with a tree_desc entry.
create_ce_mode(mode) in cache.h is similar but is intended to be
used for index entries (so it does not work for directories) and
returns the value in the network byte order.
Signed-off-by: Junio C Hamano <junkio@cox.net>
When the executable bit is untrustworthy and when we are
comparing the tree with the working tree, we tried to reuse the
mode bits recorded in the index incorrectly (the computation was
bogus on little endian architectures). Just use mode from index
when it is a regular file.
Signed-off-by: Junio C Hamano <junkio@cox.net>
With this, we can show the boundary (open-circle) commits immediately
after their last child, which looks much better than putting all the
boundary commits at the bottom of the graph.
Signed-off-by: Paul Mackerras <paulus@samba.org>
The earlier change to make "..B" to mean "HEAD..B" (aka ^HEAD B)
has constness gotcha GCC complains. Fix it.
Signed-off-by: Junio C Hamano <junkio@cox.net>
For consistency reasons, we should probably allow that to be written as
just "..branch", the same way we can write "branch.." to mean "everything
in HEAD but not in "branch".
Signed-off-by: Junio C Hamano <junkio@cox.net>
With the new --boundary flag, the output from rev-list includes
the UNINTERESING commits at the boundary, which are usually not
shown. Their object names are prefixed with '-'.
For example, with this graph:
C side
/
A---B---D master
You would get something like this:
$ git rev-list --boundary --header --parents side..master
D B
tree D^{tree}
parent B
... log message for commit D here ...
\0-B A
tree B^{tree}
parent A
... log message for commit B here ...
\0
Signed-off-by: Junio C Hamano <junkio@cox.net>
We do not need to track object refs, neither we need to save commit
unless we are doing verbose header. A lot of traversal happens
inside prepare_revision_walk() these days so setting things up before
calling that function is necessary.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Acked-by: Linus Torvalds <torvalds@osdl.org>
The speed of the built-in diff generator is nice; but the function names
shown by `diff -p' are /really/ nice. And I hate having to choose. So,
we hack xdiff to find the function names and print them.
xdiff has grown a flag to say whether to dig up the function names. The
builtin_diff function passes this flag unconditionally. I suppose it
could parse GIT_DIFF_OPTS, but it doesn't at the moment. I've also
reintroduced the `function name' into the test suite, from which it was
removed in commit 3ce8f089.
The function names are parsed by a particularly stupid algorithm at the
moment: it just tries to find a line in the `old' file, from before the
start of the hunk, whose first character looks plausible. Still, it's
most definitely a start.
Signed-off-by: Mark Wooding <mdw@distorted.org.uk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
