The logic for pulling into an unborn branch was originally
designed to be used on a newly-initialized repository
(d09e79c, git-pull: allow pulling into an empty repository,
2006-11-16). It thus did not initially deal with
uncommitted changes in the unborn branch. The case of an
_unstaged_ untracked file was fixed by 4b3ffe5 (pull: do not
clobber untracked files on initial pull, 2011-03-25).
However, it still clobbered existing staged files, both when
the file exists in the merged commit (it will be
overwritten), and when it does not (it will be deleted).
We fix this by doing a two-way merge, where the "current"
side of the merge is an empty tree, and the "target" side is
HEAD (already updated to FETCH_HEAD at this point). This
amounts to claiming that all work in the index was done vs.
an empty tree, and thus all content of the index is
precious.
Note that this use of read-tree just gives us protection
against overwriting index and working tree changes. It will
not actually result in a 3-way merge conflict in the index.
This is fine, as this is a rare situation, and the conflict
would not be interesting anyway (it must, by definition, be
an add/add conflict with the whole content conflicting). And
it makes it simpler for the user to recover, as they have no
HEAD to "git reset" back to.
Reported-by: Stefan Schüßler <mail@stefanschuessler.de>
Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When commit d09e79c taught git to pull into an unborn
branch, it first updated the unborn branch to point at the
pulled commit, and then used read-tree to update the index
and working tree. That ordering made sense, since any
failure of the latter step would be due to filesystem
errors, and one could then recover with "git reset --hard".
Later, commit 4b3ffe5 added extra safety for existing files
in the working tree by asking read-tree to bail out when it
would overwrite such a file. This error mode is much less
"your pull failed due to random errors" and more like "we
reject this pull because it would lose data". In that case,
it makes sense not to update the HEAD ref, just as a regular
rejected merge would do.
This patch reverses the order of the update-ref and
read-tree calls, so that we do not touch the HEAD ref at all if a
merge is rejected. This also means that we would not update
HEAD in case of a transient filesystem error, but those are
presumably less rare (and one can still recover by repeating
the pull, or by accessing FETCH_HEAD directly).
While we're reorganizing the code, we can drop the "exit 1"
from the end of our command chain. We exit immediately
either way, and just calling exit without an argument will
use the exit code from the last command.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Use the SANITY prerequisite when testing if a temp file can
be created in a read only directory.
Skip the test under CYGWIN, or skip it under Unix/Linux when
it is run as root.
Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
githooks(5) says that "[...]the .sample files are executable by default"
which was not true.
Signed-off-by: Wieland Hoffmann <themineo@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Test 2 of t5004 checks if a supposedly empty tar archive really
contains no files. 24676f02 (t5004: fix issue with empty archive test
and bsdtar) removed our commit hash to make it work with bsdtar, but
the test still fails on NetBSD and OpenBSD, which use their own tar
that considers a tar file containing only NULs as broken.
Here's what the different archivers do when asked to create a tar
file without entries:
$ uname -v
NetBSD 6.0.1 (GENERIC)
$ gtar --version | head -1
tar (GNU tar) 1.26
$ bsdtar --version
bsdtar 2.8.4 - libarchive 2.8.4
$ : >zero.tar
$ perl -e 'print "\0" x 10240' >tenk.tar
$ sha1 zero.tar tenk.tar
SHA1 (zero.tar) = da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA1 (tenk.tar) = 34e163be8e43c5631d8b92e9c43ab0bf0fa62b9c
$ : | tar cf - -T - | sha1
da39a3ee5e6b4b0d3255bfef95601890afd80709
$ : | gtar cf - -T - | sha1
34e163be8e43c5631d8b92e9c43ab0bf0fa62b9c
$ : | bsdtar cf - -T - | sha1
34e163be8e43c5631d8b92e9c43ab0bf0fa62b9c
So NetBSD's native tar creates an empty file, while GNU tar and bsdtar
both give us 10KB of NULs -- just like git archive with an empty tree.
Now let's see how the archivers handle these two kinds of empty tar
files:
$ tar tf zero.tar; echo $?
tar: Unexpected EOF on archive file
1
$ gtar tf zero.tar; echo $?
gtar: This does not look like a tar archive
gtar: Exiting with failure status due to previous errors
2
$ bsdtar tf zero.tar; echo $?
0
$ tar tf tenk.tar; echo $?
tar: Cannot identify format. Searching...
tar: End of archive volume 1 reached
tar: Sorry, unable to determine archive format.
1
$ gtar tf tenk.tar; echo $?
0
$ bsdtar tf tenk.tar; echo $?
0
NetBSD's tar complains about both, bsdtar happily accepts any of them
and GNU tar doesn't like zero-length archive files. So the safest
course of action is to stay with our block-of-NULs format which is
compatible with GNU tar and bsdtar, as we can't make NetBSD's native
tar happy anyway.
We can simplify our test, however, by taking tar out of the picture.
Instead of extracting the archive and checking for the non-presence of
files, check if the file has a size of 10KB and contains only NULs.
This makes t5004 pass on NetBSD and OpenBSD.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Versions of tar that don't know pax headers -- like the ones in NetBSD 6
and OpenBSD 5.2 -- extract them as regular files. Explicitly ignore the
file created for our global header when checking the list of extracted
files, as this is normal and harmless fall-back behaviour. This fixes
test 3 of t5004 on these platforms.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The `kdiff3 --auto` help message is, "No GUI if all conflicts are auto-
solvable." This flag was carried over from the original mergetool
commands. diff_cmd() is for two-way comparisons only so remove the
superfluous flag.
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* tr/remote-tighten-commandline-parsing:
remote: 'show' and 'prune' can take more than one remote
remote: check for superfluous arguments in 'git remote add'
remote: add a test for extra arguments, according to docs
zsh is smart enough to add the right suffix while completing, there's no
point in trying to do the same as bash.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
-C takes a commit object, not a file.
Signed-off-by: Anders Granskogen Bjørnstad <andersgb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
So that we can have a nice zsh completion output:
% git <tab>
add -- add file contents to the index
bisect -- find by binary search the change that introduced a bug
branch -- list, create, or delete branches
checkout -- checkout a branch or paths to the working tree
clone -- clone a repository into a new directory
commit -- record changes to the repository
diff -- show changes between commits, commit and working tree, etc
fetch -- download objects and refs from another repository
grep -- print lines matching a pattern
init -- create an empty Git repository or reinitialize an existing one
log -- show commit logs
merge -- join two or more development histories together
mv -- move or rename a file, a directory, or a symlink
pull -- fetch from and merge with another repository or a local branch
push -- update remote refs along with associated objects
rebase -- forward-port local commits to the updated upstream head
reset -- reset current HEAD to the specified state
rm -- remove files from the working tree and from the index
show -- show various types of objects
status -- show the working tree status
tag -- create, list, delete or verify a tag object signed with GPG
And other niceties, like 'git --git-dir=<tab>' showing only directories.
For the rest, the bash completion stuff is still used.
Also, add my copyright, since this more than a thin wrapper.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
There should be no functional changes.
The only reason I wrapped this code around a sub-function is because zsh
did the same in it's bashcompinit script in order to declare the special
variable 'words' as hidden, but only in this context.
There's no need for that any more since we access __git_main directly,
so 'words' is not modified, so there's no need for the sub-function.
In zsh mode the array indexes are different though.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
6fac1b83 (completion: add missing config variables, 2009-06-29) added
"rebase" to the list of completions for "branch.*.*", but forgot to
specify completions for the values that this configuration variable
can take (namely "false" and "true"). Fix this.
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
c47ef57 (diff: introduce diff.submodule configuration variable,
2012-11-13) introduced the diff.submodule configuration variable, but
forgot to teach git-completion.bash about it. Fix this.
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
df44483a (diff --stat: add config option to limit graph width,
2012-03-01) added the option diff.startGraphWidth to the list of
configuration variables in git-completion.bash, but failed to notice
that the list is sorted alphabetically. Move it to its rightful place
in the list.
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Commit d24fbca (Remove Git's support for smoke testing - 2011-12-23)
removed the smoke test support from the test suite but it was
re-added by commit 342e9ef (Introduce a performance testing
framework - 2012-02-17). This appears to be the result of a
mis-rebase, since re-adding the smoke testing infrastructure does
not relate to the subject of that commit.
The current 'smoke' target is broken since the 'harness' script it
uses no longer exists, so just reapply this section of commit d24fbca
and remove all of the smoke testing section in the makefile.
Signed-off-by: John Keeping <john@keeping.me.uk>
Acked-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* jn/gitweb-install-doc:
gitweb/INSTALL: GITWEB_CONFIG_SYSTEM is for backward compatibility
gitweb/INSTALL: Simplify description of GITWEB_CONFIG_SYSTEM
* rt/commentchar-fmt-merge-msg:
t6200: avoid path mangling issue on Windows
fmt-merge-msg: use core.commentchar in tag signatures completely
fmt-merge-msg: respect core.commentchar in people credits
The shell syntax "export X=Y A=B" is not understood by all shells.
Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The shell syntax "export X=Y" is not understood by all shells.
Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The shell syntax "export X=Y A=B" is not understood by all shells.
Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The shell syntax "export X=Y" is not understood by all shells.
Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The shell syntax "export X=Y" is not understood by all shells.
Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git diff --diff-algorithm=algo" was understood by the command line
parser, but "git diff --diff-algorithm algo" was not.
* jk/diff-algo-finishing-touches:
diff: allow unstuck arguments with --diff-algorithm
git-merge(1): document diff-algorithm option to merge-recursive
"git log -S/-G" started paying attention to textconv filter, but
there was no way to disable this. Make it honor --no-textconv
option.
* sr/log-SG-no-textconv:
diffcore-pickaxe: unify code for log -S/-G
diffcore-pickaxe: fix leaks in "log -S<block>" and "log -G<pattern>"
diffcore-pickaxe: port optimization from has_changes() to diff_grep()
diffcore-pickaxe: respect --no-textconv
diffcore-pickaxe: remove fill_one()
diffcore-pickaxe: remove unnecessary call to get_textconv()
"git merge $(git rev-parse v1.8.2)" behaved quite differently from
"git merge v1.8.2", as if v1.8.2 were written as v1.8.2^0 and did
not pay much attention to the annotated tag payload. Make the code
notice the type of the tag object, in addition to the dwim_ref()
based classification the current code uses (i.e. the name appears in
refs/tags/) to decide when to special case merging of tags.
* jc/merge-tag-object:
t6200: test message for merging of an annotated tag
t6200: use test_config/test_unconfig
merge: a random object may not necssarily be a commit
Remove one of two consecutive, identical blocks for "git commit -c".
This was caused by a mechanical mismerge at d931e2fb25 (Merge
branch 'mp/complete-paths', 2013-02-08). The side branch wanted to
add this block at fea16b47 but the same fix was done independently
at 685397585 already.
Signed-off-by: Mårten Kongstad <marten.kongstad@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The 'git remote show' and 'prune' subcommands are documented as taking
only a single remote name argument, but that is not the case; they
will simply iterate the action over all remotes given. Update the
documentation and tests to match.
With the last user of the -f flag gone, we also remove the code
supporting it.
Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The 'git remote add' subcommand did not check for superfluous command
line arguments. Make it so.
Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This adds one test or comment for each subcommand of git-remote
according to its current documentation. All but 'set-branches' and
'update' are listed as taking only a fixed number of arguments; for
those we can write a test with one more (bogus) argument, and see if
the command notices that.
They fail on several counts: 'add' does not check for extra arguments,
and 'show' and 'prune' actually iterate over remotes (i.e., take any
number of args). We'll fix them in the next two patches.
The -f machinery is only there to make the tests readable while still
ensuring they pass as a whole, and will be removed in the final patch.
Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The usage string for cherry-pick and revert has never been updated to
reflect their ability to handle multiple commits. Other documentation is
already correct.
Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* ta/glossary:
glossary: improve definitions of refspec and pathspec
The name of the hash function is "SHA-1", not "SHA1"
glossary: improve description of SHA-1 related topics
glossary: remove outdated/misleading/irrelevant entries
Improve documentation to illustrate "push authenticated, fetch
anonymous" configuration for smart HTTP servers.
* jk/doc-http-backend:
doc/http-backend: match query-string in apache half-auth example
doc/http-backend: give some lighttpd config examples
doc/http-backend: clarify "half-auth" repo configuration
