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Merge branch 'jc/maint-blank-at-eof' into maint
* jc/maint-blank-at-eof:
diff -B: colour whitespace errors
diff.c: emit_add_line() takes only the rest of the line
diff.c: split emit_line() from the first char and the rest of the line
diff.c: shuffling code around
diff --whitespace: fix blank lines at end
core.whitespace: split trailing-space into blank-at-{eol,eof}
diff --color: color blank-at-eof
diff --whitespace=warn/error: fix blank-at-eof check
diff --whitespace=warn/error: obey blank-at-eof
diff.c: the builtin_diff() deals with only two-file comparison
apply --whitespace: warn blank but not necessarily empty lines at EOF
apply --whitespace=warn/error: diagnose blank at EOF
apply.c: split check_whitespace() into two
apply --whitespace=fix: detect new blank lines at eof correctly
apply --whitespace=fix: fix handling of blank lines at the eof
This commit is contained in:
Junio C Hamano
commit
6dbdba00ea
@ -416,13 +416,17 @@ core.whitespace::
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consider them as errors. You can prefix `-` to disable
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any of them (e.g. `-trailing-space`):
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+
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* `trailing-space` treats trailing whitespaces at the end of the line
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* `blank-at-eol` treats trailing whitespaces at the end of the line
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as an error (enabled by default).
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* `space-before-tab` treats a space character that appears immediately
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before a tab character in the initial indent part of the line as an
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error (enabled by default).
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* `indent-with-non-tab` treats a line that is indented with 8 or more
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space characters as an error (not enabled by default).
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* `blank-at-eof` treats blank lines added at the end of file as an error
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(enabled by default).
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* `trailing-space` is a short-hand to cover both `blank-at-eol` and
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`blank-at-eof`.
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* `cr-at-eol` treats a carriage-return at the end of line as
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part of the line terminator, i.e. with it, `trailing-space`
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does not trigger if the character before such a carriage-return
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@ -153,6 +153,7 @@ struct fragment {
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const char *patch;
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int size;
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int rejected;
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int linenr;
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struct fragment *next;
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};
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@ -1227,23 +1228,29 @@ static int find_header(char *line, unsigned long size, int *hdrsize, struct patc
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return -1;
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}
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static void check_whitespace(const char *line, int len, unsigned ws_rule)
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static void record_ws_error(unsigned result, const char *line, int len, int linenr)
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{
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char *err;
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unsigned result = ws_check(line + 1, len - 1, ws_rule);
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if (!result)
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return;
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whitespace_error++;
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if (squelch_whitespace_errors &&
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squelch_whitespace_errors < whitespace_error)
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;
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else {
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err = whitespace_error_string(result);
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fprintf(stderr, "%s:%d: %s.\n%.*s\n",
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patch_input_file, linenr, err, len - 2, line + 1);
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free(err);
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}
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return;
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err = whitespace_error_string(result);
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fprintf(stderr, "%s:%d: %s.\n%.*s\n",
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patch_input_file, linenr, err, len, line);
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free(err);
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}
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static void check_whitespace(const char *line, int len, unsigned ws_rule)
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{
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unsigned result = ws_check(line + 1, len - 1, ws_rule);
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record_ws_error(result, line + 1, len - 2, linenr);
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}
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/*
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@ -1359,6 +1366,7 @@ static int parse_single_patch(char *line, unsigned long size, struct patch *patc
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int len;
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fragment = xcalloc(1, sizeof(*fragment));
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fragment->linenr = linenr;
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len = parse_fragment(line, size, patch, fragment);
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if (len <= 0)
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die("corrupt patch at line %d", linenr);
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@ -2142,6 +2150,7 @@ static int apply_one_fragment(struct image *img, struct fragment *frag,
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int len = linelen(patch, size);
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int plen, added;
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int added_blank_line = 0;
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int is_blank_context = 0;
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if (!len)
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break;
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@ -2174,8 +2183,12 @@ static int apply_one_fragment(struct image *img, struct fragment *frag,
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*new++ = '\n';
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add_line_info(&preimage, "\n", 1, LINE_COMMON);
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add_line_info(&postimage, "\n", 1, LINE_COMMON);
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is_blank_context = 1;
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break;
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case ' ':
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if (plen && (ws_rule & WS_BLANK_AT_EOF) &&
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ws_blank_line(patch + 1, plen, ws_rule))
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is_blank_context = 1;
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case '-':
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memcpy(old, patch + 1, plen);
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add_line_info(&preimage, old, plen,
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@ -2202,7 +2215,8 @@ static int apply_one_fragment(struct image *img, struct fragment *frag,
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(first == '+' ? 0 : LINE_COMMON));
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new += added;
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if (first == '+' &&
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added == 1 && new[-1] == '\n')
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(ws_rule & WS_BLANK_AT_EOF) &&
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ws_blank_line(patch + 1, plen, ws_rule))
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added_blank_line = 1;
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break;
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case '@': case '\\':
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@ -2215,6 +2229,8 @@ static int apply_one_fragment(struct image *img, struct fragment *frag,
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}
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if (added_blank_line)
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new_blank_lines_at_end++;
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else if (is_blank_context)
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;
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else
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new_blank_lines_at_end = 0;
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patch += len;
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@ -2296,17 +2312,24 @@ static int apply_one_fragment(struct image *img, struct fragment *frag,
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}
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if (applied_pos >= 0) {
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if (ws_error_action == correct_ws_error &&
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new_blank_lines_at_end &&
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postimage.nr + applied_pos == img->nr) {
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if (new_blank_lines_at_end &&
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preimage.nr + applied_pos == img->nr &&
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(ws_rule & WS_BLANK_AT_EOF) &&
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ws_error_action != nowarn_ws_error) {
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record_ws_error(WS_BLANK_AT_EOF, "+", 1, frag->linenr);
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if (ws_error_action == correct_ws_error) {
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while (new_blank_lines_at_end--)
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remove_last_line(&postimage);
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}
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/*
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* If the patch application adds blank lines
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* at the end, and if the patch applies at the
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* end of the image, remove those added blank
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* lines.
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* We would want to prevent write_out_results()
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* from taking place in apply_patch() that follows
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* the callchain led us here, which is:
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* apply_patch->check_patch_list->check_patch->
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* apply_data->apply_fragments->apply_one_fragment
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*/
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while (new_blank_lines_at_end--)
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remove_last_line(&postimage);
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if (ws_error_action == die_on_ws_error)
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apply = 0;
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}
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/*
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4
cache.h
4
cache.h
@ -986,10 +986,12 @@ void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, i
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* whitespace rules.
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* used by both diff and apply
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*/
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#define WS_TRAILING_SPACE 01
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#define WS_BLANK_AT_EOL 01
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#define WS_SPACE_BEFORE_TAB 02
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#define WS_INDENT_WITH_NON_TAB 04
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#define WS_CR_AT_EOL 010
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#define WS_BLANK_AT_EOF 020
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#define WS_TRAILING_SPACE (WS_BLANK_AT_EOL|WS_BLANK_AT_EOF)
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#define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB)
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extern unsigned whitespace_rule_cfg;
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extern unsigned whitespace_rule(const char *);
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407
diff.c
407
diff.c
@ -174,6 +174,175 @@ static struct diff_tempfile {
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char tmp_path[PATH_MAX];
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} diff_temp[2];
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typedef unsigned long (*sane_truncate_fn)(char *line, unsigned long len);
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struct emit_callback {
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int color_diff;
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unsigned ws_rule;
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int blank_at_eof_in_preimage;
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int blank_at_eof_in_postimage;
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int lno_in_preimage;
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int lno_in_postimage;
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sane_truncate_fn truncate;
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const char **label_path;
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struct diff_words_data *diff_words;
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int *found_changesp;
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FILE *file;
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};
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static int count_lines(const char *data, int size)
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{
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int count, ch, completely_empty = 1, nl_just_seen = 0;
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count = 0;
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while (0 < size--) {
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ch = *data++;
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if (ch == '\n') {
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count++;
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nl_just_seen = 1;
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completely_empty = 0;
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}
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else {
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nl_just_seen = 0;
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completely_empty = 0;
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}
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}
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if (completely_empty)
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return 0;
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if (!nl_just_seen)
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count++; /* no trailing newline */
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return count;
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}
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static int fill_mmfile(mmfile_t *mf, struct diff_filespec *one)
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{
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if (!DIFF_FILE_VALID(one)) {
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mf->ptr = (char *)""; /* does not matter */
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mf->size = 0;
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return 0;
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}
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else if (diff_populate_filespec(one, 0))
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return -1;
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mf->ptr = one->data;
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mf->size = one->size;
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return 0;
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}
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static int count_trailing_blank(mmfile_t *mf, unsigned ws_rule)
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{
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char *ptr = mf->ptr;
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long size = mf->size;
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int cnt = 0;
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if (!size)
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return cnt;
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ptr += size - 1; /* pointing at the very end */
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if (*ptr != '\n')
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; /* incomplete line */
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else
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ptr--; /* skip the last LF */
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while (mf->ptr < ptr) {
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char *prev_eol;
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for (prev_eol = ptr; mf->ptr <= prev_eol; prev_eol--)
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if (*prev_eol == '\n')
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break;
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if (!ws_blank_line(prev_eol + 1, ptr - prev_eol, ws_rule))
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break;
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cnt++;
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ptr = prev_eol - 1;
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}
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return cnt;
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}
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static void check_blank_at_eof(mmfile_t *mf1, mmfile_t *mf2,
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struct emit_callback *ecbdata)
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{
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int l1, l2, at;
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unsigned ws_rule = ecbdata->ws_rule;
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l1 = count_trailing_blank(mf1, ws_rule);
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l2 = count_trailing_blank(mf2, ws_rule);
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if (l2 <= l1) {
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ecbdata->blank_at_eof_in_preimage = 0;
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ecbdata->blank_at_eof_in_postimage = 0;
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return;
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}
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at = count_lines(mf1->ptr, mf1->size);
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ecbdata->blank_at_eof_in_preimage = (at - l1) + 1;
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at = count_lines(mf2->ptr, mf2->size);
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ecbdata->blank_at_eof_in_postimage = (at - l2) + 1;
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}
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static void emit_line_0(FILE *file, const char *set, const char *reset,
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int first, const char *line, int len)
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{
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int has_trailing_newline, has_trailing_carriage_return;
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int nofirst;
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if (len == 0) {
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has_trailing_newline = (first == '\n');
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has_trailing_carriage_return = (!has_trailing_newline &&
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(first == '\r'));
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nofirst = has_trailing_newline || has_trailing_carriage_return;
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} else {
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has_trailing_newline = (len > 0 && line[len-1] == '\n');
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if (has_trailing_newline)
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len--;
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has_trailing_carriage_return = (len > 0 && line[len-1] == '\r');
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if (has_trailing_carriage_return)
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len--;
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nofirst = 0;
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}
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fputs(set, file);
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if (!nofirst)
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fputc(first, file);
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fwrite(line, len, 1, file);
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fputs(reset, file);
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if (has_trailing_carriage_return)
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fputc('\r', file);
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if (has_trailing_newline)
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fputc('\n', file);
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}
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static void emit_line(FILE *file, const char *set, const char *reset,
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const char *line, int len)
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{
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emit_line_0(file, set, reset, line[0], line+1, len-1);
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}
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static int new_blank_line_at_eof(struct emit_callback *ecbdata, const char *line, int len)
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{
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if (!((ecbdata->ws_rule & WS_BLANK_AT_EOF) &&
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ecbdata->blank_at_eof_in_preimage &&
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ecbdata->blank_at_eof_in_postimage &&
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ecbdata->blank_at_eof_in_preimage <= ecbdata->lno_in_preimage &&
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ecbdata->blank_at_eof_in_postimage <= ecbdata->lno_in_postimage))
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return 0;
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return ws_blank_line(line, len, ecbdata->ws_rule);
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||||
}
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||||
|
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static void emit_add_line(const char *reset,
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struct emit_callback *ecbdata,
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||||
const char *line, int len)
|
||||
{
|
||||
const char *ws = diff_get_color(ecbdata->color_diff, DIFF_WHITESPACE);
|
||||
const char *set = diff_get_color(ecbdata->color_diff, DIFF_FILE_NEW);
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||||
|
||||
if (!*ws)
|
||||
emit_line_0(ecbdata->file, set, reset, '+', line, len);
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else if (new_blank_line_at_eof(ecbdata, line, len))
|
||||
/* Blank line at EOF - paint '+' as well */
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||||
emit_line_0(ecbdata->file, ws, reset, '+', line, len);
|
||||
else {
|
||||
/* Emit just the prefix, then the rest. */
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||||
emit_line_0(ecbdata->file, set, reset, '+', "", 0);
|
||||
ws_check_emit(line, len, ecbdata->ws_rule,
|
||||
ecbdata->file, set, reset, ws);
|
||||
}
|
||||
}
|
||||
|
||||
static struct diff_tempfile *claim_diff_tempfile(void) {
|
||||
int i;
|
||||
for (i = 0; i < ARRAY_SIZE(diff_temp); i++)
|
||||
@ -201,29 +370,6 @@ static void remove_tempfile_on_signal(int signo)
|
||||
raise(signo);
|
||||
}
|
||||
|
||||
static int count_lines(const char *data, int size)
|
||||
{
|
||||
int count, ch, completely_empty = 1, nl_just_seen = 0;
|
||||
count = 0;
|
||||
while (0 < size--) {
|
||||
ch = *data++;
|
||||
if (ch == '\n') {
|
||||
count++;
|
||||
nl_just_seen = 1;
|
||||
completely_empty = 0;
|
||||
}
|
||||
else {
|
||||
nl_just_seen = 0;
|
||||
completely_empty = 0;
|
||||
}
|
||||
}
|
||||
if (completely_empty)
|
||||
return 0;
|
||||
if (!nl_just_seen)
|
||||
count++; /* no trailing newline */
|
||||
return count;
|
||||
}
|
||||
|
||||
static void print_line_count(FILE *file, int count)
|
||||
{
|
||||
switch (count) {
|
||||
@ -239,26 +385,36 @@ static void print_line_count(FILE *file, int count)
|
||||
}
|
||||
}
|
||||
|
||||
static void copy_file_with_prefix(FILE *file,
|
||||
int prefix, const char *data, int size,
|
||||
const char *set, const char *reset)
|
||||
static void emit_rewrite_lines(struct emit_callback *ecb,
|
||||
int prefix, const char *data, int size)
|
||||
{
|
||||
int ch, nl_just_seen = 1;
|
||||
while (0 < size--) {
|
||||
ch = *data++;
|
||||
if (nl_just_seen) {
|
||||
fputs(set, file);
|
||||
putc(prefix, file);
|
||||
const char *endp = NULL;
|
||||
static const char *nneof = " No newline at end of file\n";
|
||||
const char *old = diff_get_color(ecb->color_diff, DIFF_FILE_OLD);
|
||||
const char *reset = diff_get_color(ecb->color_diff, DIFF_RESET);
|
||||
|
||||
while (0 < size) {
|
||||
int len;
|
||||
|
||||
endp = memchr(data, '\n', size);
|
||||
len = endp ? (endp - data + 1) : size;
|
||||
if (prefix != '+') {
|
||||
ecb->lno_in_preimage++;
|
||||
emit_line_0(ecb->file, old, reset, '-',
|
||||
data, len);
|
||||
} else {
|
||||
ecb->lno_in_postimage++;
|
||||
emit_add_line(reset, ecb, data, len);
|
||||
}
|
||||
if (ch == '\n') {
|
||||
nl_just_seen = 1;
|
||||
fputs(reset, file);
|
||||
} else
|
||||
nl_just_seen = 0;
|
||||
putc(ch, file);
|
||||
size -= len;
|
||||
data += len;
|
||||
}
|
||||
if (!endp) {
|
||||
const char *plain = diff_get_color(ecb->color_diff,
|
||||
DIFF_PLAIN);
|
||||
emit_line_0(ecb->file, plain, reset, '\\',
|
||||
nneof, strlen(nneof));
|
||||
}
|
||||
if (!nl_just_seen)
|
||||
fprintf(file, "%s\n\\ No newline at end of file\n", reset);
|
||||
}
|
||||
|
||||
static void emit_rewrite_diff(const char *name_a,
|
||||
@ -274,13 +430,12 @@ static void emit_rewrite_diff(const char *name_a,
|
||||
const char *name_a_tab, *name_b_tab;
|
||||
const char *metainfo = diff_get_color(color_diff, DIFF_METAINFO);
|
||||
const char *fraginfo = diff_get_color(color_diff, DIFF_FRAGINFO);
|
||||
const char *old = diff_get_color(color_diff, DIFF_FILE_OLD);
|
||||
const char *new = diff_get_color(color_diff, DIFF_FILE_NEW);
|
||||
const char *reset = diff_get_color(color_diff, DIFF_RESET);
|
||||
static struct strbuf a_name = STRBUF_INIT, b_name = STRBUF_INIT;
|
||||
const char *a_prefix, *b_prefix;
|
||||
const char *data_one, *data_two;
|
||||
size_t size_one, size_two;
|
||||
struct emit_callback ecbdata;
|
||||
|
||||
if (diff_mnemonic_prefix && DIFF_OPT_TST(o, REVERSE_DIFF)) {
|
||||
a_prefix = o->b_prefix;
|
||||
@ -321,6 +476,22 @@ static void emit_rewrite_diff(const char *name_a,
|
||||
size_two = two->size;
|
||||
}
|
||||
|
||||
memset(&ecbdata, 0, sizeof(ecbdata));
|
||||
ecbdata.color_diff = color_diff;
|
||||
ecbdata.found_changesp = &o->found_changes;
|
||||
ecbdata.ws_rule = whitespace_rule(name_b ? name_b : name_a);
|
||||
ecbdata.file = o->file;
|
||||
if (ecbdata.ws_rule & WS_BLANK_AT_EOF) {
|
||||
mmfile_t mf1, mf2;
|
||||
mf1.ptr = (char *)data_one;
|
||||
mf2.ptr = (char *)data_two;
|
||||
mf1.size = size_one;
|
||||
mf2.size = size_two;
|
||||
check_blank_at_eof(&mf1, &mf2, &ecbdata);
|
||||
}
|
||||
ecbdata.lno_in_preimage = 1;
|
||||
ecbdata.lno_in_postimage = 1;
|
||||
|
||||
lc_a = count_lines(data_one, size_one);
|
||||
lc_b = count_lines(data_two, size_two);
|
||||
fprintf(o->file,
|
||||
@ -332,24 +503,9 @@ static void emit_rewrite_diff(const char *name_a,
|
||||
print_line_count(o->file, lc_b);
|
||||
fprintf(o->file, " @@%s\n", reset);
|
||||
if (lc_a)
|
||||
copy_file_with_prefix(o->file, '-', data_one, size_one, old, reset);
|
||||
emit_rewrite_lines(&ecbdata, '-', data_one, size_one);
|
||||
if (lc_b)
|
||||
copy_file_with_prefix(o->file, '+', data_two, size_two, new, reset);
|
||||
}
|
||||
|
||||
static int fill_mmfile(mmfile_t *mf, struct diff_filespec *one)
|
||||
{
|
||||
if (!DIFF_FILE_VALID(one)) {
|
||||
mf->ptr = (char *)""; /* does not matter */
|
||||
mf->size = 0;
|
||||
return 0;
|
||||
}
|
||||
else if (diff_populate_filespec(one, 0))
|
||||
return -1;
|
||||
|
||||
mf->ptr = one->data;
|
||||
mf->size = one->size;
|
||||
return 0;
|
||||
emit_rewrite_lines(&ecbdata, '+', data_two, size_two);
|
||||
}
|
||||
|
||||
struct diff_words_buffer {
|
||||
@ -529,18 +685,6 @@ static void diff_words_show(struct diff_words_data *diff_words)
|
||||
diff_words->minus.text.size = diff_words->plus.text.size = 0;
|
||||
}
|
||||
|
||||
typedef unsigned long (*sane_truncate_fn)(char *line, unsigned long len);
|
||||
|
||||
struct emit_callback {
|
||||
int nparents, color_diff;
|
||||
unsigned ws_rule;
|
||||
sane_truncate_fn truncate;
|
||||
const char **label_path;
|
||||
struct diff_words_data *diff_words;
|
||||
int *found_changesp;
|
||||
FILE *file;
|
||||
};
|
||||
|
||||
static void free_diff_words_data(struct emit_callback *ecbdata)
|
||||
{
|
||||
if (ecbdata->diff_words) {
|
||||
@ -566,42 +710,6 @@ const char *diff_get_color(int diff_use_color, enum color_diff ix)
|
||||
return "";
|
||||
}
|
||||
|
||||
static void emit_line(FILE *file, const char *set, const char *reset, const char *line, int len)
|
||||
{
|
||||
int has_trailing_newline, has_trailing_carriage_return;
|
||||
|
||||
has_trailing_newline = (len > 0 && line[len-1] == '\n');
|
||||
if (has_trailing_newline)
|
||||
len--;
|
||||
has_trailing_carriage_return = (len > 0 && line[len-1] == '\r');
|
||||
if (has_trailing_carriage_return)
|
||||
len--;
|
||||
|
||||
fputs(set, file);
|
||||
fwrite(line, len, 1, file);
|
||||
fputs(reset, file);
|
||||
if (has_trailing_carriage_return)
|
||||
fputc('\r', file);
|
||||
if (has_trailing_newline)
|
||||
fputc('\n', file);
|
||||
}
|
||||
|
||||
static void emit_add_line(const char *reset, struct emit_callback *ecbdata, const char *line, int len)
|
||||
{
|
||||
const char *ws = diff_get_color(ecbdata->color_diff, DIFF_WHITESPACE);
|
||||
const char *set = diff_get_color(ecbdata->color_diff, DIFF_FILE_NEW);
|
||||
|
||||
if (!*ws)
|
||||
emit_line(ecbdata->file, set, reset, line, len);
|
||||
else {
|
||||
/* Emit just the prefix, then the rest. */
|
||||
emit_line(ecbdata->file, set, reset, line, ecbdata->nparents);
|
||||
ws_check_emit(line + ecbdata->nparents,
|
||||
len - ecbdata->nparents, ecbdata->ws_rule,
|
||||
ecbdata->file, set, reset, ws);
|
||||
}
|
||||
}
|
||||
|
||||
static unsigned long sane_truncate_line(struct emit_callback *ecb, char *line, unsigned long len)
|
||||
{
|
||||
const char *cp;
|
||||
@ -620,10 +728,23 @@ static unsigned long sane_truncate_line(struct emit_callback *ecb, char *line, u
|
||||
return allot - l;
|
||||
}
|
||||
|
||||
static void find_lno(const char *line, struct emit_callback *ecbdata)
|
||||
{
|
||||
const char *p;
|
||||
ecbdata->lno_in_preimage = 0;
|
||||
ecbdata->lno_in_postimage = 0;
|
||||
p = strchr(line, '-');
|
||||
if (!p)
|
||||
return; /* cannot happen */
|
||||
ecbdata->lno_in_preimage = strtol(p + 1, NULL, 10);
|
||||
p = strchr(p, '+');
|
||||
if (!p)
|
||||
return; /* cannot happen */
|
||||
ecbdata->lno_in_postimage = strtol(p + 1, NULL, 10);
|
||||
}
|
||||
|
||||
static void fn_out_consume(void *priv, char *line, unsigned long len)
|
||||
{
|
||||
int i;
|
||||
int color;
|
||||
struct emit_callback *ecbdata = priv;
|
||||
const char *meta = diff_get_color(ecbdata->color_diff, DIFF_METAINFO);
|
||||
const char *plain = diff_get_color(ecbdata->color_diff, DIFF_PLAIN);
|
||||
@ -650,14 +771,9 @@ static void fn_out_consume(void *priv, char *line, unsigned long len)
|
||||
len = 1;
|
||||
}
|
||||
|
||||
/* This is not really necessary for now because
|
||||
* this codepath only deals with two-way diffs.
|
||||
*/
|
||||
for (i = 0; i < len && line[i] == '@'; i++)
|
||||
;
|
||||
if (2 <= i && i < len && line[i] == ' ') {
|
||||
ecbdata->nparents = i - 1;
|
||||
if (line[0] == '@') {
|
||||
len = sane_truncate_line(ecbdata, line, len);
|
||||
find_lno(line, ecbdata);
|
||||
emit_line(ecbdata->file,
|
||||
diff_get_color(ecbdata->color_diff, DIFF_FRAGINFO),
|
||||
reset, line, len);
|
||||
@ -666,15 +782,11 @@ static void fn_out_consume(void *priv, char *line, unsigned long len)
|
||||
return;
|
||||
}
|
||||
|
||||
if (len < ecbdata->nparents) {
|
||||
if (len < 1) {
|
||||
emit_line(ecbdata->file, reset, reset, line, len);
|
||||
return;
|
||||
}
|
||||
|
||||
color = DIFF_PLAIN;
|
||||
if (ecbdata->diff_words && ecbdata->nparents != 1)
|
||||
/* fall back to normal diff */
|
||||
free_diff_words_data(ecbdata);
|
||||
if (ecbdata->diff_words) {
|
||||
if (line[0] == '-') {
|
||||
diff_words_append(line, len,
|
||||
@ -693,20 +805,19 @@ static void fn_out_consume(void *priv, char *line, unsigned long len)
|
||||
emit_line(ecbdata->file, plain, reset, line, len);
|
||||
return;
|
||||
}
|
||||
for (i = 0; i < ecbdata->nparents && len; i++) {
|
||||
if (line[i] == '-')
|
||||
color = DIFF_FILE_OLD;
|
||||
else if (line[i] == '+')
|
||||
color = DIFF_FILE_NEW;
|
||||
}
|
||||
|
||||
if (color != DIFF_FILE_NEW) {
|
||||
emit_line(ecbdata->file,
|
||||
diff_get_color(ecbdata->color_diff, color),
|
||||
reset, line, len);
|
||||
return;
|
||||
if (line[0] != '+') {
|
||||
const char *color =
|
||||
diff_get_color(ecbdata->color_diff,
|
||||
line[0] == '-' ? DIFF_FILE_OLD : DIFF_PLAIN);
|
||||
ecbdata->lno_in_preimage++;
|
||||
if (line[0] == ' ')
|
||||
ecbdata->lno_in_postimage++;
|
||||
emit_line(ecbdata->file, color, reset, line, len);
|
||||
} else {
|
||||
ecbdata->lno_in_postimage++;
|
||||
emit_add_line(reset, ecbdata, line + 1, len - 1);
|
||||
}
|
||||
emit_add_line(reset, ecbdata, line, len);
|
||||
}
|
||||
|
||||
static char *pprint_rename(const char *a, const char *b)
|
||||
@ -1211,7 +1322,6 @@ struct checkdiff_t {
|
||||
struct diff_options *o;
|
||||
unsigned ws_rule;
|
||||
unsigned status;
|
||||
int trailing_blanks_start;
|
||||
};
|
||||
|
||||
static int is_conflict_marker(const char *line, unsigned long len)
|
||||
@ -1255,10 +1365,6 @@ 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;
|
||||
if (is_conflict_marker(line + 1, len - 1)) {
|
||||
data->status |= 1;
|
||||
fprintf(data->o->file,
|
||||
@ -1278,14 +1384,12 @@ static void checkdiff_consume(void *priv, char *line, unsigned long len)
|
||||
data->o->file, set, reset, ws);
|
||||
} else if (line[0] == ' ') {
|
||||
data->lineno++;
|
||||
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;
|
||||
}
|
||||
}
|
||||
|
||||
@ -1562,6 +1666,8 @@ static void builtin_diff(const char *name_a,
|
||||
ecbdata.color_diff = DIFF_OPT_TST(o, COLOR_DIFF);
|
||||
ecbdata.found_changesp = &o->found_changes;
|
||||
ecbdata.ws_rule = whitespace_rule(name_b ? name_b : name_a);
|
||||
if (ecbdata.ws_rule & WS_BLANK_AT_EOF)
|
||||
check_blank_at_eof(&mf1, &mf2, &ecbdata);
|
||||
ecbdata.file = o->file;
|
||||
xpp.flags = XDF_NEED_MINIMAL | o->xdl_opts;
|
||||
xecfg.ctxlen = o->context;
|
||||
@ -1704,11 +1810,22 @@ static void builtin_checkdiff(const char *name_a, const char *name_b,
|
||||
xdi_diff_outf(&mf1, &mf2, checkdiff_consume, &data,
|
||||
&xpp, &xecfg, &ecb);
|
||||
|
||||
if ((data.ws_rule & WS_TRAILING_SPACE) &&
|
||||
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 */
|
||||
if (data.ws_rule & WS_BLANK_AT_EOF) {
|
||||
struct emit_callback ecbdata;
|
||||
int blank_at_eof;
|
||||
|
||||
ecbdata.ws_rule = data.ws_rule;
|
||||
check_blank_at_eof(&mf1, &mf2, &ecbdata);
|
||||
blank_at_eof = ecbdata.blank_at_eof_in_preimage;
|
||||
|
||||
if (blank_at_eof) {
|
||||
static char *err;
|
||||
if (!err)
|
||||
err = whitespace_error_string(WS_BLANK_AT_EOF);
|
||||
fprintf(o->file, "%s:%d: %s.\n",
|
||||
data.filename, blank_at_eof, err);
|
||||
data.status = 1; /* report errors */
|
||||
}
|
||||
}
|
||||
}
|
||||
free_and_return:
|
||||
|
||||
@ -362,10 +362,17 @@ test_expect_success 'line numbers in --check output are correct' '
|
||||
|
||||
'
|
||||
|
||||
test_expect_success 'checkdiff detects trailing blank lines' '
|
||||
test_expect_success 'checkdiff detects new trailing blank lines (1)' '
|
||||
echo "foo();" >x &&
|
||||
echo "" >>x &&
|
||||
git diff --check | grep "ends with blank"
|
||||
git diff --check | grep "new blank line"
|
||||
'
|
||||
|
||||
test_expect_success 'checkdiff detects new trailing blank lines (2)' '
|
||||
{ echo a; echo b; echo; echo; } >x &&
|
||||
git add x &&
|
||||
{ echo a; echo; echo; echo; echo; } >x &&
|
||||
git diff --check | grep "new blank line"
|
||||
'
|
||||
|
||||
test_expect_success 'checkdiff allows new blank lines' '
|
||||
|
||||
@ -165,7 +165,7 @@ test_expect_success 'trailing empty lines (1)' '
|
||||
|
||||
rm -f .gitattributes &&
|
||||
test_must_fail git diff --check >output &&
|
||||
grep "ends with blank lines." output &&
|
||||
grep "new blank line at" output &&
|
||||
grep "trailing whitespace" output
|
||||
|
||||
'
|
||||
@ -190,4 +190,13 @@ test_expect_success 'do not color trailing cr in context' '
|
||||
|
||||
'
|
||||
|
||||
test_expect_success 'color new trailing blank lines' '
|
||||
{ echo a; echo b; echo; echo; } >x &&
|
||||
git add x &&
|
||||
{ echo a; echo; echo; echo; echo c; echo; echo; echo; echo; } >x &&
|
||||
git diff --color x >output &&
|
||||
cnt=$(grep "${blue_grep}" output | wc -l) &&
|
||||
test $cnt = 2
|
||||
'
|
||||
|
||||
test_done
|
||||
|
||||
@ -170,4 +170,95 @@ test_expect_success 'trailing whitespace & no newline at the end of file' '
|
||||
grep "^$" target
|
||||
'
|
||||
|
||||
test_expect_success 'blank at EOF with --whitespace=fix (1)' '
|
||||
: these can fail depending on what we did before
|
||||
git config --unset core.whitespace
|
||||
rm -f .gitattributes
|
||||
|
||||
{ echo a; echo b; echo c; } >one &&
|
||||
git add one &&
|
||||
{ echo a; echo b; echo c; } >expect &&
|
||||
{ cat expect; echo; } >one &&
|
||||
git diff -- one >patch &&
|
||||
|
||||
git checkout one &&
|
||||
git apply --whitespace=fix patch &&
|
||||
test_cmp expect one
|
||||
'
|
||||
|
||||
test_expect_success 'blank at EOF with --whitespace=fix (2)' '
|
||||
{ echo a; echo b; echo c; } >one &&
|
||||
git add one &&
|
||||
{ echo a; echo c; } >expect &&
|
||||
{ cat expect; echo; echo; } >one &&
|
||||
git diff -- one >patch &&
|
||||
|
||||
git checkout one &&
|
||||
git apply --whitespace=fix patch &&
|
||||
test_cmp expect one
|
||||
'
|
||||
|
||||
test_expect_success 'blank at EOF with --whitespace=fix (3)' '
|
||||
{ echo a; echo b; echo; } >one &&
|
||||
git add one &&
|
||||
{ echo a; echo c; echo; } >expect &&
|
||||
{ cat expect; echo; echo; } >one &&
|
||||
git diff -- one >patch &&
|
||||
|
||||
git checkout one &&
|
||||
git apply --whitespace=fix patch &&
|
||||
test_cmp expect one
|
||||
'
|
||||
|
||||
test_expect_success 'blank at end of hunk, not at EOF with --whitespace=fix' '
|
||||
{ echo a; echo b; echo; echo; echo; echo; echo; echo d; } >one &&
|
||||
git add one &&
|
||||
{ echo a; echo c; echo; echo; echo; echo; echo; echo; echo d; } >expect &&
|
||||
cp expect one &&
|
||||
git diff -- one >patch &&
|
||||
|
||||
git checkout one &&
|
||||
git apply --whitespace=fix patch &&
|
||||
test_cmp expect one
|
||||
'
|
||||
|
||||
test_expect_success 'blank at EOF with --whitespace=warn' '
|
||||
{ echo a; echo b; echo c; } >one &&
|
||||
git add one &&
|
||||
echo >>one &&
|
||||
cat one >expect &&
|
||||
git diff -- one >patch &&
|
||||
|
||||
git checkout one &&
|
||||
git apply --whitespace=warn patch 2>error &&
|
||||
test_cmp expect one &&
|
||||
grep "new blank line at EOF" error
|
||||
'
|
||||
|
||||
test_expect_success 'blank at EOF with --whitespace=error' '
|
||||
{ echo a; echo b; echo c; } >one &&
|
||||
git add one &&
|
||||
cat one >expect &&
|
||||
echo >>one &&
|
||||
git diff -- one >patch &&
|
||||
|
||||
git checkout one &&
|
||||
test_must_fail git apply --whitespace=error patch 2>error &&
|
||||
test_cmp expect one &&
|
||||
grep "new blank line at EOF" error
|
||||
'
|
||||
|
||||
test_expect_success 'blank but not empty at EOF' '
|
||||
{ echo a; echo b; echo c; } >one &&
|
||||
git add one &&
|
||||
echo " " >>one &&
|
||||
cat one >expect &&
|
||||
git diff -- one >patch &&
|
||||
|
||||
git checkout one &&
|
||||
git apply --whitespace=warn patch 2>error &&
|
||||
test_cmp expect one &&
|
||||
grep "new blank line at EOF" error
|
||||
'
|
||||
|
||||
test_done
|
||||
|
||||
19
ws.c
19
ws.c
@ -16,6 +16,8 @@ static struct whitespace_rule {
|
||||
{ "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 },
|
||||
};
|
||||
|
||||
unsigned parse_whitespace_rule(const char *string)
|
||||
@ -102,8 +104,17 @@ 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, ", ");
|
||||
@ -141,11 +152,11 @@ 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;
|
||||
@ -261,7 +272,7 @@ int ws_fix_copy(char *dst, const char *src, int len, unsigned ws_rule, int *erro
|
||||
/*
|
||||
* Strip trailing whitespace
|
||||
*/
|
||||
if (ws_rule & WS_TRAILING_SPACE) {
|
||||
if (ws_rule & WS_BLANK_AT_EOL) {
|
||||
if (0 < len && src[len - 1] == '\n') {
|
||||
add_nl_to_tail = 1;
|
||||
len--;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user