diff options
Diffstat (limited to 'diff.c')
| -rw-r--r-- | diff.c | 57 |
1 files changed, 34 insertions, 23 deletions
@@ -354,7 +354,6 @@ struct emit_callback { const char **label_path; struct diff_words_data *diff_words; struct diff_options *opt; - int *found_changesp; struct strbuf *header; }; @@ -722,7 +721,6 @@ static void emit_rewrite_diff(const char *name_a, memset(&ecbdata, 0, sizeof(ecbdata)); ecbdata.color_diff = want_color(o->use_color); - ecbdata.found_changesp = &o->found_changes; ecbdata.ws_rule = whitespace_rule(name_b); ecbdata.opt = o; if (ecbdata.ws_rule & WS_BLANK_AT_EOF) { @@ -951,7 +949,8 @@ static int find_word_boundaries(mmfile_t *buffer, regex_t *word_regex, { if (word_regex && *begin < buffer->size) { regmatch_t match[1]; - if (!regexec(word_regex, buffer->ptr + *begin, 1, match, 0)) { + if (!regexec_buf(word_regex, buffer->ptr + *begin, + buffer->size - *begin, 1, match, 0)) { char *p = memchr(buffer->ptr + *begin + match[0].rm_so, '\n', match[0].rm_eo - match[0].rm_so); *end = p ? p - buffer->ptr : match[0].rm_eo + *begin; @@ -1216,12 +1215,13 @@ static void fn_out_consume(void *priv, char *line, unsigned long len) struct diff_options *o = ecbdata->opt; const char *line_prefix = diff_line_prefix(o); + o->found_changes = 1; + if (ecbdata->header) { - fprintf(ecbdata->opt->file, "%s", ecbdata->header->buf); + fprintf(o->file, "%s", ecbdata->header->buf); strbuf_reset(ecbdata->header); ecbdata->header = NULL; } - *(ecbdata->found_changesp) = 1; if (ecbdata->label_path[0]) { const char *name_a_tab, *name_b_tab; @@ -1229,9 +1229,9 @@ static void fn_out_consume(void *priv, char *line, unsigned long len) name_a_tab = strchr(ecbdata->label_path[0], ' ') ? "\t" : ""; name_b_tab = strchr(ecbdata->label_path[1], ' ') ? "\t" : ""; - fprintf(ecbdata->opt->file, "%s%s--- %s%s%s\n", + fprintf(o->file, "%s%s--- %s%s%s\n", line_prefix, meta, ecbdata->label_path[0], reset, name_a_tab); - fprintf(ecbdata->opt->file, "%s%s+++ %s%s%s\n", + fprintf(o->file, "%s%s+++ %s%s%s\n", line_prefix, meta, ecbdata->label_path[1], reset, name_b_tab); ecbdata->label_path[0] = ecbdata->label_path[1] = NULL; } @@ -1249,15 +1249,7 @@ static void fn_out_consume(void *priv, char *line, unsigned long len) find_lno(line, ecbdata); emit_hunk_header(ecbdata, line, len); if (line[len-1] != '\n') - putc('\n', ecbdata->opt->file); - return; - } - - if (len < 1) { - emit_line(ecbdata->opt, reset, reset, line, len); - if (ecbdata->diff_words - && ecbdata->diff_words->type == DIFF_WORDS_PORCELAIN) - fputs("~\n", ecbdata->opt->file); + putc('\n', o->file); return; } @@ -1282,8 +1274,8 @@ static void fn_out_consume(void *priv, char *line, unsigned long len) } diff_words_flush(ecbdata); if (ecbdata->diff_words->type == DIFF_WORDS_PORCELAIN) { - emit_line(ecbdata->opt, context, reset, line, len); - fputs("~\n", ecbdata->opt->file); + emit_line(o, context, reset, line, len); + fputs("~\n", o->file); } else { /* * Skip the prefix character, if any. With @@ -1294,7 +1286,7 @@ static void fn_out_consume(void *priv, char *line, unsigned long len) line++; len--; } - emit_line(ecbdata->opt, context, reset, line, len); + emit_line(o, context, reset, line, len); } return; } @@ -1316,8 +1308,7 @@ static void fn_out_consume(void *priv, char *line, unsigned long len) default: /* incomplete line at the end */ ecbdata->lno_in_preimage++; - emit_line(ecbdata->opt, - diff_get_color(ecbdata->color_diff, DIFF_CONTEXT), + emit_line(o, diff_get_color(ecbdata->color_diff, DIFF_CONTEXT), reset, line, len); break; } @@ -2438,7 +2429,6 @@ static void builtin_diff(const char *name_a, memset(&ecbdata, 0, sizeof(ecbdata)); ecbdata.label_path = lbl; ecbdata.color_diff = want_color(o->use_color); - ecbdata.found_changesp = &o->found_changes; ecbdata.ws_rule = whitespace_rule(name_b); if (ecbdata.ws_rule & WS_BLANK_AT_EOF) check_blank_at_eof(&mf1, &mf2, &ecbdata); @@ -4099,7 +4089,8 @@ void diff_free_filepair(struct diff_filepair *p) free(p); } -/* This is different from find_unique_abbrev() in that +/* + * This is different from find_unique_abbrev() in that * it stuffs the result with dots for alignment. */ const char *diff_unique_abbrev(const unsigned char *sha1, int len) @@ -4111,6 +4102,26 @@ const char *diff_unique_abbrev(const unsigned char *sha1, int len) abbrev = find_unique_abbrev(sha1, len); abblen = strlen(abbrev); + + /* + * In well-behaved cases, where the abbbreviated result is the + * same as the requested length, append three dots after the + * abbreviation (hence the whole logic is limited to the case + * where abblen < 37); when the actual abbreviated result is a + * bit longer than the requested length, we reduce the number + * of dots so that they match the well-behaved ones. However, + * if the actual abbreviation is longer than the requested + * length by more than three, we give up on aligning, and add + * three dots anyway, to indicate that the output is not the + * full object name. Yes, this may be suboptimal, but this + * appears only in "diff --raw --abbrev" output and it is not + * worth the effort to change it now. Note that this would + * likely to work fine when the automatic sizing of default + * abbreviation length is used--we would be fed -1 in "len" in + * that case, and will end up always appending three-dots, but + * the automatic sizing is supposed to give abblen that ensures + * uniqueness across all objects (statistically speaking). + */ if (abblen < 37) { static char hex[41]; if (len < abblen && abblen <= len + 2) |