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915838c3cb
This patch adds a framework and a stub implementation of rename detection to diff-helper program. The current stub code is just enough to detect pure renames in diff-tree output and not fancier. The plan is perhaps to use the same delta code when Nico's delta storage patch is merged for similarity evaluation purposes. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
38 lines
996 B
C
38 lines
996 B
C
/*
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* Copyright (C) 2005 Junio C Hamano
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*/
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#ifndef DIFF_H
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#define DIFF_H
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extern void diff_addremove(int addremove,
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unsigned mode,
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const unsigned char *sha1,
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const char *base,
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const char *path);
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extern void diff_change(unsigned mode1, unsigned mode2,
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const unsigned char *sha1,
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const unsigned char *sha2,
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const char *base, const char *path);
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extern void diff_unmerge(const char *path);
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/* These are for diff-helper */
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struct diff_spec {
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unsigned char blob_sha1[20];
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unsigned short mode; /* file mode */
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unsigned sha1_valid : 1; /* if true, use blob_sha1 and trust mode;
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* however with a NULL SHA1, read them
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* from the file system.
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* if false, use the name and read mode from
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* the filesystem.
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*/
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unsigned file_valid : 1; /* if false the file does not even exist */
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};
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extern void run_external_diff(const char *name, const char *other,
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struct diff_spec *, struct diff_spec *);
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#endif /* DIFF_H */
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