diff options
Diffstat (limited to 'ws.c')
| -rw-r--r-- | ws.c | 100 |
1 files changed, 71 insertions, 29 deletions
@@ -10,11 +10,16 @@ static struct whitespace_rule { const char *rule_name; unsigned rule_bits; + unsigned loosens_error:1, + exclude_default:1; } whitespace_rule_names[] = { - { "trailing-space", WS_TRAILING_SPACE }, - { "space-before-tab", WS_SPACE_BEFORE_TAB }, - { "indent-with-non-tab", WS_INDENT_WITH_NON_TAB }, - { "cr-at-eol", WS_CR_AT_EOL }, + { "trailing-space", WS_TRAILING_SPACE, 0 }, + { "space-before-tab", WS_SPACE_BEFORE_TAB, 0 }, + { "indent-with-non-tab", WS_INDENT_WITH_NON_TAB, 0 }, + { "cr-at-eol", WS_CR_AT_EOL, 1 }, + { "blank-at-eol", WS_BLANK_AT_EOL, 0 }, + { "blank-at-eof", WS_BLANK_AT_EOF, 0 }, + { "tab-in-indent", WS_TAB_IN_INDENT, 0, 1 }, }; unsigned parse_whitespace_rule(const char *string) @@ -53,6 +58,9 @@ unsigned parse_whitespace_rule(const char *string) } string = ep; } + + if (rule & WS_TAB_IN_INDENT && rule & WS_INDENT_WITH_NON_TAB) + die("cannot enforce both tab-in-indent and indent-with-non-tab"); return rule; } @@ -61,7 +69,7 @@ static void setup_whitespace_attr_check(struct git_attr_check *check) static struct git_attr *attr_whitespace; if (!attr_whitespace) - attr_whitespace = git_attr("whitespace", 10); + attr_whitespace = git_attr("whitespace"); check[0].attr = attr_whitespace; } @@ -79,7 +87,9 @@ unsigned whitespace_rule(const char *pathname) unsigned all_rule = 0; int i; for (i = 0; i < ARRAY_SIZE(whitespace_rule_names); i++) - all_rule |= whitespace_rule_names[i].rule_bits; + if (!whitespace_rule_names[i].loosens_error && + !whitespace_rule_names[i].exclude_default) + all_rule |= whitespace_rule_names[i].rule_bits; return all_rule; } else if (ATTR_FALSE(value)) { /* false (-whitespace) */ @@ -100,8 +110,17 @@ unsigned whitespace_rule(const char *pathname) char *whitespace_error_string(unsigned ws) { struct strbuf err = STRBUF_INIT; - if (ws & WS_TRAILING_SPACE) + if ((ws & WS_TRAILING_SPACE) == WS_TRAILING_SPACE) strbuf_addstr(&err, "trailing whitespace"); + else { + if (ws & WS_BLANK_AT_EOL) + strbuf_addstr(&err, "trailing whitespace"); + if (ws & WS_BLANK_AT_EOF) { + if (err.len) + strbuf_addstr(&err, ", "); + strbuf_addstr(&err, "new blank line at EOF"); + } + } if (ws & WS_SPACE_BEFORE_TAB) { if (err.len) strbuf_addstr(&err, ", "); @@ -112,6 +131,11 @@ char *whitespace_error_string(unsigned ws) strbuf_addstr(&err, ", "); strbuf_addstr(&err, "indent with spaces"); } + if (ws & WS_TAB_IN_INDENT) { + if (err.len) + strbuf_addstr(&err, ", "); + strbuf_addstr(&err, "tab in indent"); + } return strbuf_detach(&err, NULL); } @@ -139,18 +163,18 @@ static unsigned ws_check_emit_1(const char *line, int len, unsigned ws_rule, } /* Check for trailing whitespace. */ - if (ws_rule & WS_TRAILING_SPACE) { + if (ws_rule & WS_BLANK_AT_EOL) { for (i = len - 1; i >= 0; i--) { if (isspace(line[i])) { trailing_whitespace = i; - result |= WS_TRAILING_SPACE; + result |= WS_BLANK_AT_EOL; } else break; } } - /* Check for space before tab in initial indent. */ + /* Check indentation */ for (i = 0; i < len; i++) { if (line[i] == ' ') continue; @@ -162,11 +186,19 @@ static unsigned ws_check_emit_1(const char *line, int len, unsigned ws_rule, fputs(ws, stream); fwrite(line + written, i - written, 1, stream); fputs(reset, stream); + fwrite(line + i, 1, 1, stream); } - } else if (stream) - fwrite(line + written, i - written, 1, stream); - if (stream) - fwrite(line + i, 1, 1, stream); + } else if (ws_rule & WS_TAB_IN_INDENT) { + result |= WS_TAB_IN_INDENT; + if (stream) { + fwrite(line + written, i - written, 1, stream); + fputs(ws, stream); + fwrite(line + i, 1, 1, stream); + fputs(reset, stream); + } + } else if (stream) { + fwrite(line + written, i - written + 1, 1, stream); + } written = i + 1; } @@ -239,8 +271,8 @@ int ws_blank_line(const char *line, int len, unsigned ws_rule) return 1; } -/* Copy the line to the buffer while fixing whitespaces */ -int ws_fix_copy(char *dst, const char *src, int len, unsigned ws_rule, int *error_count) +/* Copy the line onto the end of the strbuf while fixing whitespaces */ +void ws_fix_copy(struct strbuf *dst, const char *src, int len, unsigned ws_rule, int *error_count) { /* * len is number of bytes to be copied from src, starting @@ -254,17 +286,15 @@ int ws_fix_copy(char *dst, const char *src, int len, unsigned ws_rule, int *erro int last_tab_in_indent = -1; int last_space_in_indent = -1; int need_fix_leading_space = 0; - char *buf; /* * Strip trailing whitespace */ - if ((ws_rule & WS_TRAILING_SPACE) && - (2 <= len && isspace(src[len-2]))) { - if (src[len - 1] == '\n') { + if (ws_rule & WS_BLANK_AT_EOL) { + if (0 < len && src[len - 1] == '\n') { add_nl_to_tail = 1; len--; - if (1 < len && src[len - 1] == '\r') { + if (0 < len && src[len - 1] == '\r') { add_cr_to_tail = !!(ws_rule & WS_CR_AT_EOL); len--; } @@ -295,7 +325,6 @@ int ws_fix_copy(char *dst, const char *src, int len, unsigned ws_rule, int *erro break; } - buf = dst; if (need_fix_leading_space) { /* Process indent ourselves */ int consecutive_spaces = 0; @@ -317,28 +346,41 @@ int ws_fix_copy(char *dst, const char *src, int len, unsigned ws_rule, int *erro char ch = src[i]; if (ch != ' ') { consecutive_spaces = 0; - *dst++ = ch; + strbuf_addch(dst, ch); } else { consecutive_spaces++; if (consecutive_spaces == 8) { - *dst++ = '\t'; + strbuf_addch(dst, '\t'); consecutive_spaces = 0; } } } while (0 < consecutive_spaces--) - *dst++ = ' '; + strbuf_addch(dst, ' '); + len -= last; + src += last; + fixed = 1; + } else if ((ws_rule & WS_TAB_IN_INDENT) && last_tab_in_indent >= 0) { + /* Expand tabs into spaces */ + int last = last_tab_in_indent + 1; + for (i = 0; i < last; i++) { + if (src[i] == '\t') + do { + strbuf_addch(dst, ' '); + } while (dst->len % 8); + else + strbuf_addch(dst, src[i]); + } len -= last; src += last; fixed = 1; } - memcpy(dst, src, len); + strbuf_add(dst, src, len); if (add_cr_to_tail) - dst[len++] = '\r'; + strbuf_addch(dst, '\r'); if (add_nl_to_tail) - dst[len++] = '\n'; + strbuf_addch(dst, '\n'); if (fixed && error_count) (*error_count)++; - return dst + len - buf; } |