During the mailing list discussion on renaming GIT_ environment
variables, people felt that having one environment that lets the
user (or Porcelain) specify both SHA1_FILE_DIRECTORY (now
GIT_OBJECT_DIRECTORY) and GIT_INDEX_FILE for the default layout
would be handy. This change introduces GIT_DIR environment
variable, from which the defaults for GIT_INDEX_FILE and
GIT_OBJECT_DIRECTORY are derived. When GIT_DIR is not defined,
it defaults to ".git". GIT_INDEX_FILE defaults to
"$GIT_DIR/index" and GIT_OBJECT_DIRECTORY defaults to
"$GIT_DIR/objects".
Special thanks for ideas and discussions go to Petr Baudis and
Daniel Barkalow. Bugs are mine ;-)
Signed-off-by: Junio C Hamano <junkio@cox.net>
H. Peter Anvin mentioned that using SHA1_whatever as an
environment variable name is not nice and we should instead use
names starting with "GIT_" prefix to avoid conflicts. Here is
what this patch does:
* Renames the following environment variables:
New name Old Name
GIT_AUTHOR_DATE AUTHOR_DATE
GIT_AUTHOR_EMAIL AUTHOR_EMAIL
GIT_AUTHOR_NAME AUTHOR_NAME
GIT_COMMITTER_EMAIL COMMIT_AUTHOR_EMAIL
GIT_COMMITTER_NAME COMMIT_AUTHOR_NAME
GIT_ALTERNATE_OBJECT_DIRECTORIES SHA1_FILE_DIRECTORIES
GIT_OBJECT_DIRECTORY SHA1_FILE_DIRECTORY
* Introduces a compatibility macro, gitenv(), which does an
getenv() and if it fails calls gitenv_bc(), which in turn
picks up the value from old name while giving a warning about
using an old name.
* Changes all users of the environment variable to fetch
environment variable with the new name using gitenv().
* Updates the documentation and scripts shipped with Linus GIT
distribution.
The transition plan is as follows:
* We will keep the backward compatibility list used by gitenv()
for now, so the current scripts and user environments
continue to work as before. The users will get warnings when
they have old name but not new name in their environment to
the stderr.
* The Porcelain layers should start using new names. However,
just in case it ends up calling old Plumbing layer
implementation, they should also export old names, taking
values from the corresponding new names, during the
transition period.
* After a transition period, we would drop the compatibility
support and drop gitenv(). Revert the callers to directly
call getenv() but keep using the new names.
The last part is probably optional and the transition
duration needs to be set to a reasonable value.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Reformat core-git.txt to asciidoc format.
Includes split-docs.pl to create individual txt, html and man pages.
<JC> Editorial note. I've updated to add git-diff-cache -m and
git-update-cache --replace description on top of the version
David posted to the GIT list and got his OK.
Signed-off-by: David Greaves <david@dgreaves.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This fixes stylistic problems and one unused variable spotted by
Petr Baudis. The buf variable unused in prepare_alt_odb() is
gone and the "creepy" function is more heavily documented.
Signed-off-by: Junio C Hamano <junkio@cox.net>
A deflate loop in sha1_file.c would have /* nothing */ as its
body, but the semicolon was missing, so the next command was run.
Fortunately the loop went through exactly once so it didn't trigger
an actual bug so far.
Signed-Off-by: Thomas Glanzmann <sithglan@stud.uni-erlangen.de>
Signed-off-by: Petr Baudis <pasky@ucw.cz>
When we used to have "path" as a file or a symlink, but now we
have "path/file" (or in general, have "path" as a directory), we
would want to remove "path" before adding "path/file". The
logic in add_file_to_cache() only runs lstat() and does not
detect this case and fails to allow removing it in this case.
In the opposite case of having "path/file" in the index and
having "path" on the filesystem as a file or a symlink we do
allow removal of "path/file", so to be symmetric we should allow
it as well, without forcing the user to say --force-remove.
Signed-off-by: Junio C Hamano <junkio@cox.net>
When "path" exists as a file or a symlink in the index, an
attempt to add "path/file" is refused because it results in file
vs directory conflict. Similarly when "path/file1",
"path/file2", etc. exist, an attempt to add "path" as a file or
a symlink is refused. With git-update-cache --replace, these
existing entries that conflict with the entry being added are
automatically removed from the cache, with warning messages.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This is a follow-up fix to the earlier "Notice index that has
path and path/file and refuse to write such a tree" patch.
With this fix, git-fsck-cache complains if a tree object stores
more than one entries with the same name.
Signed-off-by: Junio C Hamano <junkio@cox.net>
On Solaris machines gnu install called ginstall
<JC> Editorial notes. I've also changed it to use $(COPTS), $(prefix),
and $(bin) because I always get confused without compiling it with -O1
when I single step in gdb. The default is left as Linus shipped.
Date: Sat, 7 May 2005 10:41:54 +0200
Signed-off-by: Thomas Glanzmann <sithglan@stud.uni-erlangen.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
<JC> Editorial Note. We may want to include standard headers in one
of those headers everybody includes, e.g. cache.h, to reduce clutters,
but this commit is as Thomas posted to the GIT list.
Date: Sat, 7 May 2005 10:41:41 +0200
Signed-off-by: Thomas Glanzmann <sithglan@stud.uni-erlangen.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Thomas Glanzmann says that shell he uses on Solaris cannot grok
$(command) but the script does not use nested $(command) and
works happily just by using backticks instead.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Kay Sievers noticed that you can have both path and path/file in
the cache and write-tree happily creates a tree object from such
a state. Since a merge can result in such situation and the
user should be able to see the situation by looking at the
cache, rather than forbidding add_cache_entry() to create such
conflicts, fix it by making write-tree refuse to write such an
nonsensical tree. Here is a test case.
-- test case --
$ ls -a
./ ../
$ git-init-db
defaulting to local storage area
$ date >path
$ git-update-cache --add path
$ rm path
$ mkdir path
$ date >path/file
$ git-update-cache --add path/file
$ git-ls-files --stage
100644 1738f2536b1201218c41153941da065cc26174c9 0 path
100644 620c72f1c1de15f56ff9d63d6d7cdc69e828f1e3 0 path/file
$ git-ls-tree $(git-write-tree) ;# using old one
100644 blob 1738f2536b1201218c41153941da065cc26174c9 path
040000 tree ec116937f223e3df95aeac9f076902ae1618ae98 path
$ ../git-write-tree ;# using new one
You have both path and path/file
fatal: write-tree: not able to write tree
$ exit
Signed-off-by: Junio C Hamano <junkio@cox.net>
Author: Ingo Molnar <mingo@elte.hu>
[patch] git: fix memory leak in checkout-cache.c
this patch fixes a memory leak in checkout-cache.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Petr Baudis <pasky@ucw.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This does not matter for commands that write just a handful SHA1 files,
but is noticeable in git-convert-cache which essentially traverses the
entire object database.
Signed-off-by: Junio C Hamano <junkio@cox.net>
An unmerged path is given as the sole parameter to the script, so it
should check against $# being 1, not 2.
Signed-off-by: Junio C Hamano <junkio@cox.net>
SHA1_FILE_DIRECTORIES environment variable is a colon separated paths
used when looking for SHA1 files not found in the usual place for
reading. Creating a new SHA1 file does not use this alternate object
database location mechanism. This is useful to archive older, rarely
used objects into separate directories.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Some commands initialize sha1_file_directory by hand. There is no
need to do so; sha1_file.c knows how to handle it.
The next patch will remove the variable altogether.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
It didn't properly mark all cache updates as being dirty, and
causes merge errors due to that. In particular, it didn't notice
when a file was force-removed.
Besides, it was ugly as hell. I've put in place a slightly cleaner
version, but I've not enabled the optimization because I don't
want to be burned again.
This updates the usage message string and Documentation/core-git.txt
to describe the new flags added to the git-diff-tree command.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Pass pointer to filecontents to write_header() and pass pointer
to filecontents, its size and some flags to write_exntended_header().
These parameters are not used, yet. They are added in preparation
to symlink support.
Introduce append_extended_header_prefix(), extended_header_len()
and append_extended_header(). These are helper functions that
make it easier to handle multiple entries in a pax extended
header. append_log() is no longer needed and can go away.
This allows you to trivially do fancy and readable output. Something like
git-rev-list HEAD | git-diff-tree -p -v --stdin kernel/ | less -S
gives a nice output of what has changed in the kernel/ subdirectory lately.
It turns out that parse_object() is loading and decompressing given
object to free it just before calling the specific object parsing
function which does mmap and decompress the same object again. This
patch introduces the ability to parse specific objects directly from a
memory buffer.
Without this patch, running git-fsck-cache on the kernel repositorytake:
real 0m13.006s
user 0m11.421s
sys 0m1.218s
With this patch applied:
real 0m8.060s
user 0m7.071s
sys 0m0.710s
The performance increase is significant, and this is kind of a
prerequisite for sane delta object support with fsck.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This only shows the tree headers when something actually changed. Also,
add a "silent" mode, which doesn't actually show the changes at all,
just the commit information.
This means that you can do
git-rev-list HEAD --max-count=10 | git-diff-tree --stdin update-cache.c
to see which (if any) of the last ten commits changed update-cache.c.
Use the "-m" flag to see merges too. Normally they are suppressed.
gitweb.cgi's default view is the log of the last day and git-rev-list
can stop crawling the whole repo if we have all our data to display in the
browser. Also the rss-feed query needs only the last 20 items. This
will speeds up these queries dramatically.
usage: rev-list [OPTION] commit-id
--max-count=nr
--max-age=epoch
--min-age=epoch
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Fix update-cache to compare the blob of a symlink against the link-target
and not the file it points to. Also ignore all permissions applied to
links.
Thanks to Greg for recognizing this while he added our list of symlinks
back to the udev repository.
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This backports the -t option git-ls-files in Cogito added to the Linus
version.
Signed-off-by: Petr Baudis <pasky@ucw.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This moves the private "say()" function to pull.c, renames it to
"pull_say()", and introduces a global variable "get_verbosely" that
makes the pull backends report what they fetch. The -v option is
added to git-rpull and git-http-pull to match git-local-pull.
The documentation is updated to describe these pull commands.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Junio C Hamano