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This is to rework diffcore break/rename/copy detection code so that it does not affected when deltifier code gets improved. Signed-off-by: Junio C Hamano <junkio@cox.net>maint

5 changed files with 61 additions and 40 deletions
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#include "cache.h" |
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#include "diff.h" |
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#include "diffcore.h" |
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#include "delta.h" |
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#include "count-delta.h" |
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static int diffcore_count_changes_1(void *src, unsigned long src_size, |
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void *dst, unsigned long dst_size, |
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unsigned long delta_limit, |
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unsigned long *src_copied, |
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unsigned long *literal_added) |
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{ |
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void *delta; |
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unsigned long delta_size; |
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delta = diff_delta(src, src_size, |
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dst, dst_size, |
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&delta_size, delta_limit); |
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if (!delta) |
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/* If delta_limit is exceeded, we have too much differences */ |
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return -1; |
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/* Estimate the edit size by interpreting delta. */ |
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if (count_delta(delta, delta_size, src_copied, literal_added)) { |
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free(delta); |
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return -1; |
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} |
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free(delta); |
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return 0; |
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} |
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int diffcore_count_changes(void *src, unsigned long src_size, |
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void *dst, unsigned long dst_size, |
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unsigned long delta_limit, |
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unsigned long *src_copied, |
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unsigned long *literal_added) |
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{ |
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return diffcore_count_changes_1(src, src_size, |
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dst, dst_size, |
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delta_limit, |
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src_copied, |
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literal_added); |
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} |
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