diff options
Diffstat (limited to 'builtin/apply.c')
-rw-r--r-- | builtin/apply.c | 95 |
1 files changed, 46 insertions, 49 deletions
diff --git a/builtin/apply.c b/builtin/apply.c index 59bbcdb132..12ef9ea8af 100644 --- a/builtin/apply.c +++ b/builtin/apply.c @@ -56,7 +56,7 @@ static enum ws_error_action { nowarn_ws_error, warn_on_ws_error, die_on_ws_error, - correct_ws_error, + correct_ws_error } ws_error_action = warn_on_ws_error; static int whitespace_error; static int squelch_whitespace_errors = 5; @@ -64,7 +64,7 @@ static int applied_after_fixing_ws; static enum ws_ignore { ignore_ws_none, - ignore_ws_change, + ignore_ws_change } ws_ignore_action = ignore_ws_none; @@ -1854,6 +1854,8 @@ static int match_fragment(struct image *img, { int i; char *fixed_buf, *buf, *orig, *target; + struct strbuf fixed; + size_t fixed_len; int preimage_limit; if (preimage->nr + try_lno <= img->nr) { @@ -1977,12 +1979,12 @@ static int match_fragment(struct image *img, * use the whitespace from the preimage. */ extra_chars = preimage_end - preimage_eof; - fixed_buf = xmalloc(imgoff + extra_chars); - memcpy(fixed_buf, img->buf + try, imgoff); - memcpy(fixed_buf + imgoff, preimage_eof, extra_chars); - imgoff += extra_chars; + strbuf_init(&fixed, imgoff + extra_chars); + strbuf_add(&fixed, img->buf + try, imgoff); + strbuf_add(&fixed, preimage_eof, extra_chars); + fixed_buf = strbuf_detach(&fixed, &fixed_len); update_pre_post_images(preimage, postimage, - fixed_buf, imgoff, postlen); + fixed_buf, fixed_len, postlen); return 1; } @@ -1999,27 +2001,22 @@ static int match_fragment(struct image *img, * but in this loop we will only handle the part of the * preimage that falls within the file. */ - fixed_buf = xmalloc(preimage->len + 1); - buf = fixed_buf; + strbuf_init(&fixed, preimage->len + 1); orig = preimage->buf; target = img->buf + try; for (i = 0; i < preimage_limit; i++) { - size_t fixlen; /* length after fixing the preimage */ size_t oldlen = preimage->line[i].len; size_t tgtlen = img->line[try_lno + i].len; - size_t tgtfixlen; /* length after fixing the target line */ - char tgtfixbuf[1024], *tgtfix; + size_t fixstart = fixed.len; + struct strbuf tgtfix; int match; /* Try fixing the line in the preimage */ - fixlen = ws_fix_copy(buf, orig, oldlen, ws_rule, NULL); + ws_fix_copy(&fixed, orig, oldlen, ws_rule, NULL); /* Try fixing the line in the target */ - if (sizeof(tgtfixbuf) > tgtlen) - tgtfix = tgtfixbuf; - else - tgtfix = xmalloc(tgtlen); - tgtfixlen = ws_fix_copy(tgtfix, target, tgtlen, ws_rule, NULL); + strbuf_init(&tgtfix, tgtlen); + ws_fix_copy(&tgtfix, target, tgtlen, ws_rule, NULL); /* * If they match, either the preimage was based on @@ -2031,15 +2028,15 @@ static int match_fragment(struct image *img, * so we might as well take the fix together with their * real change. */ - match = (tgtfixlen == fixlen && !memcmp(tgtfix, buf, fixlen)); + match = (tgtfix.len == fixed.len - fixstart && + !memcmp(tgtfix.buf, fixed.buf + fixstart, + fixed.len - fixstart)); - if (tgtfix != tgtfixbuf) - free(tgtfix); + strbuf_release(&tgtfix); if (!match) goto unmatch_exit; orig += oldlen; - buf += fixlen; target += tgtlen; } @@ -2051,19 +2048,18 @@ static int match_fragment(struct image *img, * false). */ for ( ; i < preimage->nr; i++) { - size_t fixlen; /* length after fixing the preimage */ + size_t fixstart = fixed.len; /* start of the fixed preimage */ size_t oldlen = preimage->line[i].len; int j; /* Try fixing the line in the preimage */ - fixlen = ws_fix_copy(buf, orig, oldlen, ws_rule, NULL); + ws_fix_copy(&fixed, orig, oldlen, ws_rule, NULL); - for (j = 0; j < fixlen; j++) - if (!isspace(buf[j])) + for (j = fixstart; j < fixed.len; j++) + if (!isspace(fixed.buf[j])) goto unmatch_exit; orig += oldlen; - buf += fixlen; } /* @@ -2071,12 +2067,13 @@ static int match_fragment(struct image *img, * has whitespace breakages unfixed, and fixing them makes the * hunk match. Update the context lines in the postimage. */ + fixed_buf = strbuf_detach(&fixed, &fixed_len); update_pre_post_images(preimage, postimage, - fixed_buf, buf - fixed_buf, 0); + fixed_buf, fixed_len, 0); return 1; unmatch_exit: - free(fixed_buf); + strbuf_release(&fixed); return 0; } @@ -2244,7 +2241,8 @@ static int apply_one_fragment(struct image *img, struct fragment *frag, int match_beginning, match_end; const char *patch = frag->patch; int size = frag->size; - char *old, *new, *oldlines, *newlines; + char *old, *oldlines; + struct strbuf newlines; int new_blank_lines_at_end = 0; unsigned long leading, trailing; int pos, applied_pos; @@ -2254,16 +2252,16 @@ static int apply_one_fragment(struct image *img, struct fragment *frag, memset(&preimage, 0, sizeof(preimage)); memset(&postimage, 0, sizeof(postimage)); oldlines = xmalloc(size); - newlines = xmalloc(size); + strbuf_init(&newlines, size); old = oldlines; - new = newlines; while (size > 0) { char first; int len = linelen(patch, size); - int plen, added; + int plen; int added_blank_line = 0; int is_blank_context = 0; + size_t start; if (!len) break; @@ -2293,7 +2291,7 @@ static int apply_one_fragment(struct image *img, struct fragment *frag, /* ... followed by '\No newline'; nothing */ break; *old++ = '\n'; - *new++ = '\n'; + strbuf_addch(&newlines, '\n'); add_line_info(&preimage, "\n", 1, LINE_COMMON); add_line_info(&postimage, "\n", 1, LINE_COMMON); is_blank_context = 1; @@ -2315,18 +2313,17 @@ static int apply_one_fragment(struct image *img, struct fragment *frag, if (first == '+' && no_add) break; + start = newlines.len; if (first != '+' || !whitespace_error || ws_error_action != correct_ws_error) { - memcpy(new, patch + 1, plen); - added = plen; + strbuf_add(&newlines, patch + 1, plen); } else { - added = ws_fix_copy(new, patch + 1, plen, ws_rule, &applied_after_fixing_ws); + ws_fix_copy(&newlines, patch + 1, plen, ws_rule, &applied_after_fixing_ws); } - add_line_info(&postimage, new, added, + add_line_info(&postimage, newlines.buf + start, newlines.len - start, (first == '+' ? 0 : LINE_COMMON)); - new += added; if (first == '+' && (ws_rule & WS_BLANK_AT_EOF) && ws_blank_line(patch + 1, plen, ws_rule)) @@ -2351,9 +2348,9 @@ static int apply_one_fragment(struct image *img, struct fragment *frag, } if (inaccurate_eof && old > oldlines && old[-1] == '\n' && - new > newlines && new[-1] == '\n') { + newlines.len > 0 && newlines.buf[newlines.len - 1] == '\n') { old--; - new--; + strbuf_setlen(&newlines, newlines.len - 1); } leading = frag->leading; @@ -2385,8 +2382,8 @@ static int apply_one_fragment(struct image *img, struct fragment *frag, pos = frag->newpos ? (frag->newpos - 1) : 0; preimage.buf = oldlines; preimage.len = old - oldlines; - postimage.buf = newlines; - postimage.len = new - newlines; + postimage.buf = newlines.buf; + postimage.len = newlines.len; preimage.line = preimage.line_allocated; postimage.line = postimage.line_allocated; @@ -2462,7 +2459,7 @@ static int apply_one_fragment(struct image *img, struct fragment *frag, } free(oldlines); - free(newlines); + strbuf_release(&newlines); free(preimage.line_allocated); free(postimage.line_allocated); @@ -2631,7 +2628,7 @@ static struct patch *in_fn_table(const char *name) if (name == NULL) return NULL; - item = string_list_lookup(name, &fn_table); + item = string_list_lookup(&fn_table, name); if (item != NULL) return (struct patch *)item->util; @@ -2667,7 +2664,7 @@ static void add_to_fn_table(struct patch *patch) * file creations and copies */ if (patch->new_name != NULL) { - item = string_list_insert(patch->new_name, &fn_table); + item = string_list_insert(&fn_table, patch->new_name); item->util = patch; } @@ -2676,7 +2673,7 @@ static void add_to_fn_table(struct patch *patch) * later chunks shouldn't patch old names */ if ((patch->new_name == NULL) || (patch->is_rename)) { - item = string_list_insert(patch->old_name, &fn_table); + item = string_list_insert(&fn_table, patch->old_name); item->util = PATH_WAS_DELETED; } } @@ -2689,7 +2686,7 @@ static void prepare_fn_table(struct patch *patch) while (patch) { if ((patch->new_name == NULL) || (patch->is_rename)) { struct string_list_item *item; - item = string_list_insert(patch->old_name, &fn_table); + item = string_list_insert(&fn_table, patch->old_name); item->util = PATH_TO_BE_DELETED; } patch = patch->next; @@ -3397,7 +3394,7 @@ static void add_name_limit(const char *name, int exclude) { struct string_list_item *it; - it = string_list_append(name, &limit_by_name); + it = string_list_append(&limit_by_name, name); it->util = exclude ? NULL : (void *) 1; } |