52e9578985
This steals the "pickaxe" feature from JIT and make it available to the bare Plumbing layer. From the command line, the user gives a string he is intersted in. Using the diff-core infrastructure previously introduced, it filters the differences to limit the output only to the diffs between <src> and <dst> where the string appears only in one but not in the other. For example: $ ./git-rev-list HEAD | ./git-diff-tree -Sdiff-tree-helper --stdin -M would show the diffs that touch the string "diff-tree-helper". In real software-archaeologist application, you would typically look for a few to several lines of code and see where that code came from. The "pickaxe" module runs after "rename/copy detection" module, so it even crosses the file rename boundary, as the above example demonstrates. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
30 lines
701 B
C
30 lines
701 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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extern int diff_scoreopt_parse(const char *opt);
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extern void diff_setup(int detect_rename, int minimum_score,
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char *pickaxe,
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int reverse, int raw_output,
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const char **spec, int cnt);
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extern void diff_flush(void);
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#endif /* DIFF_H */
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