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  1. 09 3月, 2013 1 次提交
    • J
      environment: add GIT_PREFIX to local_repo_env · a6f7f9a3
      由 Jeff King 提交于 
      The GIT_PREFIX variable is set based on our location within
the working tree. It should therefore be cleared whenever
GIT_WORK_TREE is cleared.

In practice, this doesn't cause any bugs, because none of
the sub-programs we invoke with local_repo_env cleared
actually care about GIT_PREFIX. But this is the right thing
to do, and future proofs us against that assumption changing.

While we're at it, let's define a GIT_PREFIX_ENVIRONMENT
macro; this avoids repetition of the string literal, which
can help catch any spelling mistakes in the code.
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>
      a6f7f9a3
  3. 08 3月, 2013 3 次提交
  5. 02 3月, 2013 4 次提交
  7. 28 2月, 2013 4 次提交
  9. 27 2月, 2013 1 次提交
  11. 26 2月, 2013 16 次提交
  13. 25 2月, 2013 1 次提交
  15. 23 2月, 2013 1 次提交
    • M
      Provide a mechanism to turn off symlink resolution in ceiling paths · 7ec30aaa
      由 Michael Haggerty 提交于 
      Commit 1b77d83c 'setup_git_directory_gently_1(): resolve symlinks
in ceiling paths' changed the setup code to resolve symlinks in the
entries in GIT_CEILING_DIRECTORIES.  Because those entries are
compared textually to the symlink-resolved current directory, an
entry in GIT_CEILING_DIRECTORIES that contained a symlink would have
no effect.  It was known that this could cause performance problems
if the symlink resolution *itself* touched slow filesystems, but it
was thought that such use cases would be unlikely.  The intention of
the earlier change was to deal with a case when the user has this:

	GIT_CEILING_DIRECTORIES=/home/gitster

but in reality, /home/gitster is a symbolic link to somewhere else,
e.g. /net/machine/home4/gitster. A textual comparison between the
specified value /home/gitster and the location getcwd(3) returns
would not help us, but readlink("/home/gitster") would still be
fast.

After this change was released, Anders Kaseorg <andersk@mit.edu>
reported:

> [...] my computer has been acting so slow when I’m not connected to
> the network.  I put various network filesystem paths in
> $GIT_CEILING_DIRECTORIES, such as
> /afs/athena.mit.edu/user/a/n/andersk (to avoid hitting its parents
> /afs/athena.mit.edu, /afs/athena.mit.edu/user/a, and
> /afs/athena.mit.edu/user/a/n which all live in different AFS
> volumes).  Now when I’m not connected to the network, every
> invocation of Git, including the __git_ps1 in my shell prompt, waits
> for AFS to timeout.

To allow users to work around this problem, give them a mechanism to
turn off symlink resolution in GIT_CEILING_DIRECTORIES entries.  All
the entries that follow an empty entry will not be checked for symbolic
links and used literally in comparison.  E.g. with these:

	GIT_CEILING_DIRECTORIES=:/foo/bar:/xyzzy or
	GIT_CEILING_DIRECTORIES=/foo/bar::/xyzzy

we will not readlink("/xyzzy") because it comes after an empty entry.

With the former (but not with the latter), "/foo/bar" comes after an
empty entry, and we will not readlink it, either.
Signed-off-by: NMichael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>
      7ec30aaa
  17. 21 2月, 2013 1 次提交
    • J
      Makefile: avoid infinite loop on configure.ac change · 7f1b6976
      由 Jeff King 提交于 
      If you are using autoconf and change the configure.ac, the
Makefile will notice that config.status is older than
configure.ac, and will attempt to rebuild and re-run the
configure script to pick up your changes. The first step in
doing so is to run "make configure". Unfortunately, this
tries to include config.mak.autogen, which depends on
config.status, which depends on configure.ac; so we must
rebuild config.status. Which leads to us running "make
configure", and so on.

It's easy to demonstrate with:

  make configure
  ./configure
  touch configure.ac
  make

We can break this cycle by not re-invoking make to build
"configure", and instead just putting its rules inline into
our config.status rebuild procedure.  We can avoid a copy by
factoring the rules into a make variable.
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>
      7f1b6976
  19. 20 2月, 2013 7 次提交
  21. 19 2月, 2013 1 次提交
    • J
      imap-send: move #ifdef around · 1e1fe529
      由 Junio C Hamano 提交于 
      Instead of adding an early return to the inside of the
ssl_socket_connect() function for NO_OPENSSL compilation, split it
into a separate stub function.

No functional change, but the next change to extend ssl_socket_connect()
will become easier to read this way.
Signed-off-by: NJunio C Hamano <gitster@pobox.com>
      1e1fe529