Earlier, when we switched a branch we used diff-files to show
paths that are dirty in the working tree. But we allow switching
branches with updated index ("read-tree -m -u $old $new" works that
way), and only showing paths that have differences in the working
tree but not paths that are different in index was confusing.
This shows both as modified from the top commit of the branch we
just have switched to.
avoid echo -e, there are systems where it does not work
FreeBSD 4.11 being one example: the built-in echo doesn't have -e,
and the installed /bin/echo does not do "-e" as well.
"printf" works, laking just "\e" and "\xAB'.
The hashed object lookup had a subtle bug in re-hashing: it did
for (i = 0; i < count; i++)
if (objs[i]) {
.. rehash ..
where "count" was the old hash couny. Oon the face of it is obvious, since
it clearly re-hashes all the old objects.
However, it's wrong.
If the last old hash entry before re-hashing was in use (or became in use
by the re-hashing), then when re-hashing could have inserted an object
into the hash entries with idx >= count due to overflow. When we then
rehash the last old entry, that old entry might become empty, which means
that the overflow entries should be re-hashed again.
In other words, the loop has to be fixed to either traverse the whole
array, rather than just the old count.
(There's room for a slight optimization: instead of counting all the way
up, we can break when we see the first empty slot that is above the old
"count". At that point we know we don't have any collissions that we might
have to fix up any more. This patch only does the trivial fix)
[jc: with trivial fix on trivial fix]
Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
This is to be nicer to people with unusable GECOS field.
"git-var -l" is currently broken in that when used by a user who
does not have a usable GECOS field and has not corrected it by
exporting GIT_COMMITTER_NAME environment variable it dies when
it tries to output GIT_COMMITTER_IDENT (same thing for AUTHOR).
"git-pull" used "git-var -l" only because it needed to get a
configuration variable before "git-repo-config --get" was
introduced. Use the latter tool designed exactly for this
purpose.
"git-sh-setup" used "git-var GIT_AUTHOR_IDENT" without actually
wanting to use its value. The only purpose was to cause the
command to check and barf if the repository format version
recorded in the $GIT_DIR/config file is too new for us to deal
with correctly. Instead, use "repo-config --get" on a random
property and see if it die()s, and check if the exit status is
128 (comes from die -- missing variable is reported with exit
status 1, so we can tell that case apart).
Add support for explicit type specifiers when calling git-repo-config
Currently, git-repo-config will just return the raw value of option
as specified in the config file; this makes things difficult for scripts
calling it, especially if the value is supposed to be boolean.
This patch makes it possible to ask git-repo-config to check if the option
is of the given type (int or bool) and write out the value in its
canonical form. If you do not pass --int or --bool, the behaviour stays
unchanged and the raw value is emitted.
This also incidentally fixes the segfault when option with no value is
encountered.
[jc: tweaked the option parsing a bit to make it easier to see
that the patch does not change anything but the type stuff in
the diff output. Also changed to avoid "foo ? : bar" construct. ]
Signed-off-by: Petr Baudis <pasky@suse.cz> Signed-off-by: Junio C Hamano <junkio@cox.net>
The absolute path (with the leading slash) breaks SVN importing,
because it then looks for /trunk/... instead of /svn/trunk/...
(in my case, the repository URL was https://servername/svn/)
Signed-off-by: Christian Biesinger <cbiesinger@web.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
We shouldn't fail a fetch just because a signal might have interrupted
the read.
Normally, we don't install any signal handlers, so EINTR really shouldn't
happen. That said, really old versions of Linux will interrupt an
interruptible system call even for signals that turn out to be ignored
(SIGWINCH is the classic example - resizing your xterm would cause it).
The same might well be true elsewhere too.
Also, since receive_keep_pack() doesn't control the caller, it can't know
that no signal handlers exist.
Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
Make "git clone" less of a deathly quiet experience
It used to be that "git-unpack-objects" would give nice percentages, but
now that we don't unpack the initial clone pack any more, it doesn't. And
I'd love to do that nice percentage view in the pack objects downloader
too, but the thing doesn't even read the pack header, much less know how
much it's going to get, so I was lazy and didn't.
Instead, it at least prints out how much data it's gotten, and what the
packing speed is. Which makes the user realize that it's actually doing
something useful instead of sitting there silently (and if the recipient
knows how large the final result is, he can at least make a guess about
when it migt be done).
So with this patch, I get something like this on my DSL line:
where even the speed approximation seems to be roughtly correct (even
though my algorithm is a truly stupid one, and only really gives "speed in
the last half second or so").
Anyway, _something_ like this is definitely needed. It could certainly be
better (if it showed the same kind of thing that git-unpack-objects did,
that would be much nicer, but would require parsing the object stream as
it comes in). But this is big step forward, I think.
Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
* lt/diff-tree:
combine-diff: Record diff status a bit more faithfully
find_unique_abbrev() simplification.
combine-diff: move formatting logic to show_combined_diff()
combined-diff: use diffcore before intersecting paths.
diff-tree -c raw output
rev-list: default to abbreviate merge parent names under --pretty.
When we prettyprint commit log messages, merge parent names were
often very long and there was no way to abbreviate it.
This changes them to be abbreviated by default, and non-default
abbreviations can be specified with --no-abbrev or --abbrev=<n>
options.
Note that this affects only the prettyprinted parent names. The
output from --show-parents is meant for machine consumption and
is not affected by this flag.
There was a stale comment that explains why the old code could
undercount when delta data copied things around inside detination
buffer. We do not use that kind of delta, so the comment does
not apply.
combine-diff: Record diff status a bit more faithfully
This shows "new file mode XXXX" and "deleted file mode XXXX"
lines like two-way diff-patch output does, by checking the
status from each parent.
The diff-raw output for combined diff is made a bit uglier by
showing diff status letters with each parent. While most of the
case you would see "MM" in the output, an Evil Merge that
touches a path that was added by inheriting from one parent is
possible and it would be shown like these:
Earlier it did not grok the 0{40} SHA1 very well, but what it
needed to do was to find the shortest 0{N} that is not used as a
valid object name to be consistent with the way names of valid
objects are abbreviated. This makes some users simpler.
This revamps the git-status command to take the same set of
parameters as git commit. It gives a preview of what is being
committed with that command. With -v flag, it shows the diff
output between the HEAD commit and the index that would be
committed if these flags were given to git-commit command.
git-commit also acquires -v flag (it used to mean "verify" but
that is the default anyway and there is --no-verify to turn it
off, so not much is lost), which uses the updated git-status -v
to seed the commit log buffer. This is handy for writing a log
message while reviewing the changes one last time.
Now, git-commit and git-status are internally share the same
implementation.
Unlike previous git-commit change, this uses a temporary index
to prepare the index file that would become the real index file
after a successful commit, and moves it to the real index file
once the commit is actually made. This makes it safer than the
previous scheme, which stashed away the original index file and
restored it after an aborted commit.
After experimenting with code to add the ability to encode a delta
against part of the deltified file, it turns out that resulting packs
are _bigger_ than when this ability is not used. The raw delta output
might be smaller, but it doesn't compress as well using gzip with a
negative net saving on average.
Said bit would in fact be more useful to allow for encoding the copying
of chunks larger than 64KB providing more savings with large files.
This will correspond to packs version 3.
While the current code still produces packs version 2, it is made future
proof so pack versions 2 and 3 are accepted. Any pack version 2 are
compatible with version 3 since the redefined bit was never used before.
When enough time has passed, code to use that bit to produce version 3
packs could be added.
Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
stat() for existence in safe_create_leading_directories()
Use stat() to explicitly check for existence rather than
relying on the non-portable EEXIST error in sha1_file.c's
safe_create_leading_directories(). There certainly are
optimizations possible, but then the code becomes almost
the same as that in coreutil's lib/mkdir-p.c.
Other uses of EEXIST seem ok. Tested on Solaris 8, AIX 5.2L,
and a few Linux versions. AIX has some unrelated (I think)
failures right now; I haven't tried many recent gits there.
Anyone have an old Ultrix box to break everything? ;)
Also remove extraneous #includes. Everything's already in
git-compat-util.h, included through cache.h.
Signed-off-by: Jason Riedy <ejr@cs.berkeley.edu> Signed-off-by: Junio C Hamano <junkio@cox.net>
combine-diff: move formatting logic to show_combined_diff()
This way, diff-files can make use of it. Also implement the
full suite of what diff_flush_raw() supports just for
consistency. With this, 'diff-tree -c -r --name-status' would
show what is expected.
There is no way to get the historical output (useful for
debugging and low-level Plumbing work) anymore, so tentatively
it makes '-m' to mean "do not combine and show individual diffs
with parents".
diff-files matches diff-tree to produce raw output for -c. For
textual combined diff, use -p -c.
If you call setup_git_directory() to work from a subdirectory,
that should be run first before running git_config(). Otherwise
you would not read the configuration file from the correct place.
NOTE! This makes "-c" be the default, which effectively means that merges
are never ignored any more, and "-m" is a no-op. So it changes semantics.
I would also like to make "--cc" the default if you do patches, but didn't
actually do that.
The raw output format is not wonderfully pretty, but it's distinguishable
from a "normal patch" in that a normal patch with just one parent has just
one colon at the beginning, while a multi-parent raw diff has <n> colons
for <n> parents.
ls-files: honour per-directory ignore file from higher directories.
When git-ls-files -o --exclude-per-directory=.gitignore is run
from a subdirectory, it did not read from .gitignore from its
parent directory. Reading from them makes output from these two
commands consistent:
It tried to "restore" GIT_AUTHOR_EMAIL environment variable but
the variable started out as unset, so ended up setting it to an
empty string. This is now caught as an error.
http-fetch: Abort requests for objects which arrived in packs
In fetch_object, there's a call to release an object request if the
object mysteriously arrived, say in a pack. Unfortunately, the fetch
attempt for this object might already be in progress, and we'll leak the
descriptor. Instead, try to tidy away the request.
Signed-off-by: Mark Wooding <mdw@distorted.org.uk> Signed-off-by: Junio C Hamano <junkio@cox.net>
format-patch: Remove last vestiges of --mbox option
Don't mention it in docs or --help output.
Remove mbox, date and author variables from git-format-patch.sh.
Use DESCRIPTION text from man-page to update LONG_USAGE output. It's
a bit silly to have two texts saying the same thing in different words,
and I'm too lazy to update both.
Signed-off-by: Andreas Ericsson <ae@op5.se> Signed-off-by: Junio C Hamano <junkio@cox.net>
Introduce --only flag to allow the new "partial commit"
semantics when paths are specified. The default is still the
traditional --include semantics. Once peoples' fingers and
scripts that want the traditional behaviour are updated to
explicitly say --include, we could change it to either default
to --only, or refuse to operate without either --only/--include
when paths are specified.
This also fixes a couple of bugs in the previous round. Namely:
- forgot to save/restore index in some cases.
- forgot to use the temporary index to show status when '--only
paths...' semantics was used.
- --author did not take precedence when reusing an existing
commit.
- "git commit" without _any_ parameter keeps the traditional
behaviour. It commits the current index.
We commit the whole index even when this form is run from a
subdirectory.
- "git commit --include paths..." (or "git commit -i paths...")
is equivalent to:
git update-index --remove paths...
git commit
- "git commit paths..." acquires a new semantics. This is an
incompatible change that needs user training, which I am
still a bit reluctant to swallow, but enough people seem to
have complained that it is confusing to them. It
1. refuses to run if $GIT_DIR/MERGE_HEAD exists, and reminds
trained git users that the traditional semantics now needs
-i flag.
2. refuses to run if named paths... are different in HEAD and
the index (ditto about reminding). Added paths are OK.
3. reads HEAD commit into a temporary index file.
4. updates named paths... from the working tree in this
temporary index.
5. does the same updates of the paths... from the working
tree to the real index.
6. makes a commit using the temporary index that has the
current HEAD as the parent, and updates the HEAD with this
new commit.
- "git commit --all" can run from a subdirectory, but it updates
the index with all the modified files and does a whole tree
commit.
- In all cases, when the command decides not to create a new
commit, the index is left as it was before the command is
run. This means that the two "git diff" in the following
sequence:
$ git diff
$ git commit -a
$ git diff
would show the same diff if you abort the commit process by
making the commit log message empty.
This commit also introduces much requested --author option.
$ git commit --author 'A U Thor <author@example.com>'
In a workflow that employs relatively long lived topic branches,
the developer sometimes needs to resolve the same conflict over
and over again until the topic branches are done (either merged
to the "release" branch, or sent out and accepted upstream).
This commit introduces a new command, "git rerere", to help this
process by recording the conflicted automerge results and
corresponding hand-resolve results on the initial manual merge,
and later by noticing the same conflicted automerge and applying
the previously recorded hand resolution using three-way merge.
If the first part uses quoted-printable to protect iso8859-1
name in the commit log, and the second part was plain ascii text
patchfile without even Content-Transfer-Encoding subheader, we
incorrectly tried to decode the patch as quoted printable.
Docs: move git url and remotes text to separate sections
The sections on git urls and remotes files in the git-fetch,
git-pull, and git-push manpages seem long enough to be worth a
manpage section of their own.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Junio C Hamano <junkio@cox.net>
The push and pull man pages include a bunch of shared text from
pull-fetch-param.txt. This simplifies maintenance somewhat, but
there's actually quite a bit of text that applies only to one or the
other.
So, separate out the push- and pull/fetch-specific text into
pull-fetch-param.txt and git-push.txt, then include the largest chunk
of common stuff (the description of protocols and url's) from
urls.txt. That cuts some irrelevant stuff from the man pages without
making us duplicate too much.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Junio C Hamano <junkio@cox.net>
combine-diff: do not punt on removed or added files.
When we remove a file, the parents' contents are all removed so
it is not that interesting to show all of them, but the fact it
was removed when all parents had it *is* unusual. When we add a
file, similarly the fact it was added when no parent wanted it
*is* unusual, and in addition the result matters, so show it.
gitk: Use git-diff-tree --cc for showing the diffs for merges
This replaces a lot of code that used the result from several 2-way
diffs to generate a combined diff for a merge. Now we just use
git-diff-tree --cc and colorize the output a bit, which is a lot
simpler, and has the enormous advantage that if the diff doesn't
show quite what someone thinks it should show, I can deflect the
blame to someone else. :)
Apparently this simplifies things for the parser/compiler and makes
it go slightly faster (since without the braces, it potentially has
to do two levels of substitutions rather than one).
* jc/daemon:
daemon: extend user-relative path notation.
daemon: Set SO_REUSEADDR on listening sockets.
daemon: do not forbid user relative paths unconditionally under --base-path
* mw/http:
http-fetch: Tidy control flow in process_alternate_response
http: Turn on verbose Curl messages if GIT_CURL_VERBOSE set in environment
http-fetch: Fix message reporting rename of object file.
http-fetch: Fix object list corruption in fill_active_slots().
git-diff-tree --stdin ignored second and subsequent parents when
fed git-rev-list --parents output. Update diff_tree_commit()
function to take a commit object, and pass a fabricated commit
object after grafting the fake parents from diff_tree_stdin().
Earlier we had a workaround to avoid misspelled revision name to
be taken as a filename when "--no-revs --no-flags" are in
effect. This cleans up the logic.
Earlier, we made --base-path to automatically forbid
user-relative paths, which was probably a mistake. This
introduces --user-path (or --user-path=path) option to control
the use of user-relative paths independently. The latter form
of the option can be used to restrict accesses to a part of each
user's home directory, similar to "public_html" some webservers
supports.
If we're invoked with --user-path=FOO option, then a URL of the
form git://~USER/PATH/... resolves to the path HOME/FOO/PATH/...,
where HOME is USER's home directory.
[jc: This is much reworked by me so bugs are mine, but the
original patch was done by Mark Wooding.]
http-fetch: Fix message reporting rename of object file.
move_temp_to_file returns 0 or -1. This is not a good thing to pass to
strerror(3). Fortunately, someone already reported the error, so don't
worry too much.
Signed-off-by: Mark Wooding <mdw@distorted.org.uk> Signed-off-by: Junio C Hamano <junkio@cox.net>
http-fetch: Fix object list corruption in fill_active_slots().
In fill_active_slots() -- if we find an object which has already arrived,
say as part of a pack, /don't/ remove it from the list. It's already been
prefetched and someone will ask for it later. Just label it as done and
carry blithely on. (As it was, the code would dereference a freed object
to continue through the list anyway.)
Signed-off-by: Mark Wooding <mdw@distorted.org.uk> Signed-off-by: Junio C Hamano <junkio@cox.net>
This is essentially 'git whatchanged -n1 --always --cc "$@"'.
Just like whatchanged takes default flags from
whatchanged.difftree configuration, this uses show.difftree
configuration.
It could be made later to show unmerged state nicer than the
default as we did for diff-files later, but this would suffice
for now. We would like to make --cc the default for 'git diff'.
It _might_ make sense for certain users like gitk and gitview if
we had a single tool that gives --pretty and its diff even if
the diff is empty. Having said that, the flag --cc -m is too
specific. If some uses want to see the commit log even for an
empty diff, that flag should not be something only --cc honors.
Using "--verify" together with "--no-flags" makes perfect sense, but
git-rev-parse would complain about it when it saw a flag, even though it
would never actually use/output that flag.
This fixes it.
Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
As far as I can see, create_subdirectories() in apply.c just
duplicates the functionality of safe_create_leading_directories() from
sha1_file.c. The former has a warm, fuzzy const parameter, but that's
not important.
The potential problem with EEXIST and creating directories should
never occur here, but will be removed by future
safe_create_leading_directories() changes. Other uses of EEXIST in
apply.c should be fine barring intentionally malicious behavior.
Signed-off-by: Jason Riedy <ejr@cs.berkeley.edu> Signed-off-by: Junio C Hamano <junkio@cox.net>
daemon: Provide missing argument for logerror() call.
Could cause a crash if --base-path set. Unlikely to be a security the
concern: message doesn't go to the client, so we can't leak anything
(except by dumping core), and we've already forked, so it's not a denial
of service.
Signed-off-by: Mark Wooding <mdw@distorted.org.uk> Signed-off-by: Junio C Hamano <junkio@cox.net>
get_sha1_1: allow octopus^12 to be properly parsed.
We probably thought anybody who does more than 9 parents in an
Octopus is insane when this was initially done, but there is no
inherent reason to limit the number of independent topic
branches that happen to mature at the same time.
Our commit-tree allows up to 16 already, so at least we should
prepare to handle what we can produce, if only to be consistent.
combine-diff: finishing touches to git-diff-tree --cc
This updates the output format to make administrative lines more
consistent with the traditional diffs.
The "index" line shows blob object names from each parents
(separated by commas), double dots and the object name of the
resulting blob.
The hunk header line begins with N+1 '@' characters for N-way
diff, the line number L of the first line in the hunk and line
count C from the parent in "-L,C" format for each parents and
then the line number of the first line in the hunk and line
count from the resulting file in "+L,C" format, and finally
N+1 '@' characters (earlier versions had the line numbers from
the resulting file at the beginning).
The flag on the surviving lines meant "this parent is not
different" while the parent_map flag on the lost lines meant
"this parent is different", which was confusing. So swap the
meaning of on-bit in the flag. Also more heavily comment the
code.
Provide a more meaningful initial "From " line when using --compose in git-send-email.
git-send-email, when used with --compose, provided the user with a mbox-format
file to edit. Some users, however, were confused by the leading, blank, "From
" line, so this change puts the value that will appear on the From: line of the
actual email on this line, along with a note that the line is ignored.
Signed-off-by: Ryan Anderson <ryan@michonline.com> Signed-off-by: Junio C Hamano <junkio@cox.net>