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git-archive: convert archive entries like checkouts do

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As noted by Johan Herland, git-archive is a kind of checkout and needs
to apply any checkout filters that might be configured.

This patch adds the convenience function convert_sha1_file which returns
a buffer containing the object's contents, after converting, if necessary
(i.e. it's a combination of read_sha1_file and convert_to_working_tree).
Direct calls to read_sha1_file in git-archive are then replaced by calls
to convert_sha1_file.

Since convert_sha1_file expects its path argument to be NUL-terminated --
a convention it inherits from convert_to_working_tree -- the patch also
changes the path handling in archive-tar.c to always NUL-terminate the
string.  It used to solely rely on the len field of struct strbuf before.

archive-zip.c already NUL-terminates the path and thus needs no such
change.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
René Scharfe
2007-05-19 00:09:41 +02:00
committed by Junio C Hamano
parent 4229aa5141
commit 5e6cfc80e2
4 changed files with 26 additions and 8 deletions
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1
cache.h
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@ -548,6 +548,7 @@ extern void trace_argv_printf(const char **argv, int count, const char *format,
/* convert.c */
extern char *convert_to_git(const char *path, const char *src, unsigned long *sizep);
extern char *convert_to_working_tree(const char *path, const char *src, unsigned long *sizep);
extern void *convert_sha1_file(const char *path, const unsigned char *sha1, unsigned int mode, enum object_type *type, unsigned long *size);
/* match-trees.c */
void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, int);