diff options
Diffstat (limited to 'diff.c')
| -rw-r--r-- | diff.c | 17 |
1 files changed, 15 insertions, 2 deletions
@@ -1140,6 +1140,7 @@ struct checkdiff_t { struct diff_options *o; unsigned ws_rule; unsigned status; + int trailing_blanks_start; }; static void checkdiff_consume(void *priv, char *line, unsigned long len) @@ -1154,6 +1155,10 @@ static void checkdiff_consume(void *priv, char *line, unsigned long len) if (line[0] == '+') { unsigned bad; data->lineno++; + if (!ws_blank_line(line + 1, len - 1, data->ws_rule)) + data->trailing_blanks_start = 0; + else if (!data->trailing_blanks_start) + data->trailing_blanks_start = data->lineno; bad = ws_check(line + 1, len - 1, data->ws_rule); if (!bad) return; @@ -1165,14 +1170,16 @@ static void checkdiff_consume(void *priv, char *line, unsigned long len) emit_line(data->o->file, set, reset, line, 1); ws_check_emit(line + 1, len - 1, data->ws_rule, data->o->file, set, reset, ws); - } else if (line[0] == ' ') + } else if (line[0] == ' ') { data->lineno++; - else if (line[0] == '@') { + data->trailing_blanks_start = 0; + } else if (line[0] == '@') { char *plus = strchr(line, '+'); if (plus) data->lineno = strtol(plus, NULL, 10) - 1; else die("invalid diff"); + data->trailing_blanks_start = 0; } } @@ -1584,6 +1591,12 @@ static void builtin_checkdiff(const char *name_a, const char *name_b, ecb.outf = xdiff_outf; ecb.priv = &data; xdi_diff(&mf1, &mf2, &xpp, &xecfg, &ecb); + + if (data.trailing_blanks_start) { + fprintf(o->file, "%s:%d: ends with blank lines.\n", + data.filename, data.trailing_blanks_start); + data.status = 1; /* report errors */ + } } free_and_return: diff_free_filespec_data(one); |