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Introduce xmalloc and xrealloc to die gracefully with a descriptive
message when out of memory, rather than taking a SIGSEGV.
Signed-off-by: Christopher Li<chrislgit@chrisli.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This adds the "-n" option to checkout-cache which tells it to not check
out new files, only refresh files already checked out.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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We use that to specify alternative index files, which can be useful
if you want to (for example) generate a temporary index file to do
some specific operation that you don't want to mess with your main
one with.
It defaults to the regular ".git/index" if it hasn't been specified.
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This basically makes it trivial to use checkout-cache as a "export as
tree" function. Just read the desired tree into the index, and do a
checkout-cache --prefix=export-dir/ -a
and checkout-cache will "export" the cache into the specified directory.
NOTE! The final "/" is important. The exported name is literally just
prefixed with the specified string, so you can also do something like
checkout-cache --prefix=.merged- Makefile
to check out the currently cached copy of "Makefile" into the file
".merged-Makefile".
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They don't "exist" yet, and you need to merge them first.
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The checkout-cache command says "file is not in the cache" when
an unmerged path is given. This patch adds code to distinguish
the unmerged and the nonexistent cases and gives an appropriate
error message.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Use the proper octal mode naming instead of random decimal
crud, and don't reset the mode after the create with fchmod:
the whole point was to let "umask" do its thing.
Duh.
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We only really care about the difference between a file being executable
or not (by its owner). Everything else we leave for the user umask to
decide.
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This allows using a git tree over NFS with different byte order, and
makes it possible to just copy a fully populated repository and have
the end result immediately usable (needing just a refresh to update
the stat information).
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Now there is error() for "library" errors and die() for fatal "application"
errors. usage() is now used strictly only for usage errors.
Signed-off-by: Petr Baudis <pasky@ucw.cz>
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It used to always overwrite them if forced. Now it just
realizes that they are already ok, and don't need to be
touched.
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After all, if you want to not allow others to read your
stuff, set your "umask" appropriately or make sure the
parent directories aren't readable/executable.
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It will no longer update the actual working directory, just the
cache. To update the working directory, you need to use "checkout-cache".
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It's supposed to test the returned file type, not think that read_sha1_file()
tests it. Confusion from "cat-file" command line usage.
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Make the warnings have newlines, and don't stop "checkout-cache -a"
just because a file already exists.
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I'll also eventually change "read-tree" to only update the cache
information, instead of doing a checkout of the tree. Much nicer.
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