46 lines
1.0 KiB
46 lines
1.0 KiB
/* |
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* Copyright (C) 2021, Google LLC. |
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* Based on diffcore-order.c, which is Copyright (C) 2005, Junio C Hamano |
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*/ |
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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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void diffcore_rotate(struct diff_options *opt) |
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{ |
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struct diff_queue_struct *q = &diff_queued_diff; |
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struct diff_queue_struct outq; |
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int rotate_to, i; |
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if (!q->nr) |
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return; |
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for (i = 0; i < q->nr; i++) { |
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int cmp = strcmp(opt->rotate_to, q->queue[i]->two->path); |
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if (!cmp) |
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break; /* exact match */ |
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if (!opt->rotate_to_strict && cmp < 0) |
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break; /* q->queue[i] is now past the target pathname */ |
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} |
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if (q->nr <= i) { |
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/* we did not find the specified path */ |
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if (opt->rotate_to_strict) |
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die(_("No such path '%s' in the diff"), opt->rotate_to); |
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return; |
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} |
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DIFF_QUEUE_CLEAR(&outq); |
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rotate_to = i; |
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for (i = rotate_to; i < q->nr; i++) |
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diff_q(&outq, q->queue[i]); |
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for (i = 0; i < rotate_to; i++) { |
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if (opt->skip_instead_of_rotate) |
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diff_free_filepair(q->queue[i]); |
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else |
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diff_q(&outq, q->queue[i]); |
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} |
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free(q->queue); |
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*q = outq; |
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}
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