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6b14d7faf0
This moves the path selection logic from individual programs to a new
diffcore transformer (diff-tree still needs to have its own for
performance reasons). Also the header printing code in diff-tree was
tweaked not to produce anything when pickaxe is in effect and there is
nothing interesting to report. An interesting example is the following
in the GIT archive itself:
$ git-whatchanged -p -C -S'or something in a real script'
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
/*
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* Copyright (C) 2005 Junio C Hamano
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*/
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#ifndef _DIFFCORE_H_
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#define _DIFFCORE_H_
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/* This header file is internal between diff.c and its diff transformers
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* (e.g. diffcore-rename, diffcore-pickaxe). Never include this header
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* in anything else.
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*/
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#define MAX_SCORE 10000
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#define DEFAULT_MINIMUM_SCORE 5000
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#define RENAME_DST_MATCHED 01
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#define RENAME_SRC_GONE 02
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#define RENAME_SCORE_SHIFT 8
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struct diff_filespec {
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unsigned char sha1[20];
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char *path;
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void *data;
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unsigned long size;
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int xfrm_flags; /* for use by the xfrm */
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unsigned short mode; /* file mode */
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unsigned sha1_valid : 1; /* if true, use sha1 and trust mode;
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* if false, use the name and read from
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* the filesystem.
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*/
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#define DIFF_FILE_VALID(spec) (((spec)->mode) != 0)
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unsigned should_free : 1; /* data should be free()'ed */
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unsigned should_munmap : 1; /* data should be munmap()'ed */
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};
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extern struct diff_filespec *alloc_filespec(const char *);
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extern void fill_filespec(struct diff_filespec *, const unsigned char *,
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unsigned short);
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extern int diff_populate_filespec(struct diff_filespec *);
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extern void diff_free_filespec_data(struct diff_filespec *);
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struct diff_filepair {
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struct diff_filespec *one;
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struct diff_filespec *two;
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char *xfrm_msg;
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int orig_order; /* the original order of insertion into the queue */
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int xfrm_work; /* for use by tramsformers, not by diffcore */
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};
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#define DIFF_PAIR_UNMERGED(p) \
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(!DIFF_FILE_VALID((p)->one) && !DIFF_FILE_VALID((p)->two))
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struct diff_queue_struct {
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struct diff_filepair **queue;
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int alloc;
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int nr;
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};
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extern struct diff_queue_struct diff_queued_diff;
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extern struct diff_filepair *diff_queue(struct diff_queue_struct *,
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struct diff_filespec *,
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struct diff_filespec *);
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extern void diff_q(struct diff_queue_struct *, struct diff_filepair *);
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extern void diff_free_filepair(struct diff_filepair *);
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#endif
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