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Refactor patch-id filtering out of git-cherry and git-format-patch.

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This implements the patch-id computation and recording library,
patch-ids.c, and rewrites the get_patch_ids() function used in
cherry and format-patch to use it, so that they do not pollute
the object namespace.  Earlier code threw non-objects into the
in-core object database, and hoped for not getting bitten by
SHA-1 collisions.  While it may be practically Ok, it still was
an ugly hack.

Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Junio C Hamano
2007-04-09 17:01:27 -07:00
parent 199c45bf2b
commit 5d23e133d2
4 changed files with 228 additions and 32 deletions
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21
patch-ids.h Normal file
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@ -0,0 +1,21 @@
#ifndef PATCH_IDS_H
#define PATCH_IDS_H
struct patch_id {
unsigned char patch_id[20];
char seen;
};
struct patch_ids {
struct diff_options diffopts;
int nr, alloc;
struct patch_id **table;
struct patch_id_bucket *patches;
};
int init_patch_ids(struct patch_ids *);
int free_patch_ids(struct patch_ids *);
struct patch_id *add_commit_patch_id(struct commit *, struct patch_ids *);
struct patch_id *has_commit_patch_id(struct commit *, struct patch_ids *);
#endif /* PATCH_IDS_H */