diff options
Diffstat (limited to 'apply.c')
| -rw-r--r-- | apply.c | 13 |
1 files changed, 8 insertions, 5 deletions
@@ -1333,7 +1333,7 @@ static int apply_line(char *output, const char *patch, int plen) static int apply_one_fragment(struct buffer_desc *desc, struct fragment *frag) { - int match_end; + int match_beginning, match_end; char *buf = desc->buffer; const char *patch = frag->patch; int offset, size = frag->size; @@ -1398,9 +1398,10 @@ static int apply_one_fragment(struct buffer_desc *desc, struct fragment *frag) trailing = frag->trailing; /* - * If we don't have any trailing data in the patch, - * we want it to match at the end of the file. + * If we don't have any leading/trailing data in the patch, + * we want it to match at the beginning/end of the file. */ + match_beginning = !leading && (frag->oldpos == 1); match_end = !trailing; lines = 0; @@ -1409,6 +1410,8 @@ static int apply_one_fragment(struct buffer_desc *desc, struct fragment *frag) offset = find_offset(buf, desc->size, oldlines, oldsize, pos, &lines); if (match_end && offset + oldsize != desc->size) offset = -1; + if (match_beginning && offset) + offset = -1; if (offset >= 0) { int diff = newsize - oldsize; unsigned long size = desc->size + diff; @@ -1438,8 +1441,8 @@ static int apply_one_fragment(struct buffer_desc *desc, struct fragment *frag) /* Am I at my context limits? */ if ((leading <= p_context) && (trailing <= p_context)) break; - if (match_end) { - match_end = 0; + if (match_beginning || match_end) { + match_beginning = match_end = 0; continue; } /* Reduce the number of context lines |