summaryrefslogtreecommitdiff
path: root/diff.c
diff options
context:
space:
mode:
Diffstat (limited to 'diff.c')
-rw-r--r--diff.c172
1 files changed, 119 insertions, 53 deletions
diff --git a/diff.c b/diff.c
index 13b9b6c560..f033eb0622 100644
--- a/diff.c
+++ b/diff.c
@@ -77,7 +77,7 @@ int git_diff_ui_config(const char *var, const char *value)
diff_detect_rename_default = DIFF_DETECT_RENAME;
return 0;
}
- if (!strncmp(var, "diff.color.", 11) || !strncmp(var, "color.diff.", 11)) {
+ if (!prefixcmp(var, "diff.color.") || !prefixcmp(var, "color.diff.")) {
int slot = parse_diff_color_slot(var, 11);
color_parse(value, var, diff_colors[slot]);
return 0;
@@ -184,42 +184,61 @@ static void print_line_count(int count)
}
}
-static void copy_file(int prefix, const char *data, int size)
+static void copy_file(int prefix, const char *data, int size,
+ const char *set, const char *reset)
{
int ch, nl_just_seen = 1;
while (0 < size--) {
ch = *data++;
- if (nl_just_seen)
+ if (nl_just_seen) {
+ fputs(set, stdout);
putchar(prefix);
- putchar(ch);
- if (ch == '\n')
+ }
+ if (ch == '\n') {
nl_just_seen = 1;
- else
+ fputs(reset, stdout);
+ } else
nl_just_seen = 0;
+ putchar(ch);
}
if (!nl_just_seen)
- printf("\n\\ No newline at end of file\n");
+ printf("%s\n\\ No newline at end of file\n", reset);
}
static void emit_rewrite_diff(const char *name_a,
const char *name_b,
struct diff_filespec *one,
- struct diff_filespec *two)
+ struct diff_filespec *two,
+ int color_diff)
{
int lc_a, lc_b;
+ 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);
+
+ name_a += (*name_a == '/');
+ name_b += (*name_b == '/');
+ name_a_tab = strchr(name_a, ' ') ? "\t" : "";
+ name_b_tab = strchr(name_b, ' ') ? "\t" : "";
+
diff_populate_filespec(one, 0);
diff_populate_filespec(two, 0);
lc_a = count_lines(one->data, one->size);
lc_b = count_lines(two->data, two->size);
- printf("--- a/%s\n+++ b/%s\n@@ -", name_a, name_b);
+ printf("%s--- a/%s%s%s\n%s+++ b/%s%s%s\n%s@@ -",
+ metainfo, name_a, name_a_tab, reset,
+ metainfo, name_b, name_b_tab, reset, fraginfo);
print_line_count(lc_a);
printf(" +");
print_line_count(lc_b);
- printf(" @@\n");
+ printf(" @@%s\n", reset);
if (lc_a)
- copy_file('-', one->data, one->size);
+ copy_file('-', one->data, one->size, old, reset);
if (lc_b)
- copy_file('+', two->data, two->size);
+ copy_file('+', two->data, two->size, new, reset);
}
static int fill_mmfile(mmfile_t *mf, struct diff_filespec *one)
@@ -398,22 +417,16 @@ static void emit_line(const char *set, const char *reset, const char *line, int
puts(reset);
}
-static void emit_add_line(const char *reset, struct emit_callback *ecbdata, const char *line, int len)
+static void emit_line_with_ws(int nparents,
+ const char *set, const char *reset, const char *ws,
+ const char *line, int len)
{
- int col0 = ecbdata->nparents;
+ int col0 = nparents;
int last_tab_in_indent = -1;
int last_space_in_indent = -1;
int i;
int tail = len;
int need_highlight_leading_space = 0;
- 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(set, reset, line, len);
- return;
- }
-
/* The line is a newly added line. Does it have funny leading
* whitespaces? In indent, SP should never precede a TAB.
*/
@@ -468,6 +481,18 @@ static void emit_add_line(const char *reset, struct emit_callback *ecbdata, cons
emit_line(set, reset, line + i, len - i);
}
+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(set, reset, line, len);
+ else
+ emit_line_with_ws(ecbdata->nparents, set, reset, ws,
+ line, len);
+}
+
static void fn_out_consume(void *priv, char *line, unsigned long len)
{
int i;
@@ -477,8 +502,15 @@ static void fn_out_consume(void *priv, char *line, unsigned long len)
const char *reset = diff_get_color(ecbdata->color_diff, DIFF_RESET);
if (ecbdata->label_path[0]) {
- printf("%s--- %s%s\n", set, ecbdata->label_path[0], reset);
- printf("%s+++ %s%s\n", set, ecbdata->label_path[1], reset);
+ const char *name_a_tab, *name_b_tab;
+
+ name_a_tab = strchr(ecbdata->label_path[0], ' ') ? "\t" : "";
+ name_b_tab = strchr(ecbdata->label_path[1], ' ') ? "\t" : "";
+
+ printf("%s--- %s%s%s\n",
+ set, ecbdata->label_path[0], reset, name_a_tab);
+ printf("%s+++ %s%s%s\n",
+ set, ecbdata->label_path[1], reset, name_b_tab);
ecbdata->label_path[0] = ecbdata->label_path[1] = NULL;
}
@@ -870,30 +902,44 @@ static void show_numstat(struct diffstat_t* data, struct diff_options *options)
struct checkdiff_t {
struct xdiff_emit_state xm;
const char *filename;
- int lineno;
+ int lineno, color_diff;
};
static void checkdiff_consume(void *priv, char *line, unsigned long len)
{
struct checkdiff_t *data = priv;
+ const char *ws = diff_get_color(data->color_diff, DIFF_WHITESPACE);
+ const char *reset = diff_get_color(data->color_diff, DIFF_RESET);
+ const char *set = diff_get_color(data->color_diff, DIFF_FILE_NEW);
if (line[0] == '+') {
- int i, spaces = 0;
+ int i, spaces = 0, space_before_tab = 0, white_space_at_end = 0;
/* check space before tab */
for (i = 1; i < len && (line[i] == ' ' || line[i] == '\t'); i++)
if (line[i] == ' ')
spaces++;
if (line[i - 1] == '\t' && spaces)
- printf("%s:%d: space before tab:%.*s\n",
- data->filename, data->lineno, (int)len, line);
+ space_before_tab = 1;
/* check white space at line end */
if (line[len - 1] == '\n')
len--;
if (isspace(line[len - 1]))
- printf("%s:%d: white space at end: %.*s\n",
- data->filename, data->lineno, (int)len, line);
+ white_space_at_end = 1;
+
+ if (space_before_tab || white_space_at_end) {
+ printf("%s:%d: %s", data->filename, data->lineno, ws);
+ if (space_before_tab) {
+ printf("space before tab");
+ if (white_space_at_end)
+ putchar(',');
+ }
+ if (white_space_at_end)
+ printf("white space at end");
+ printf(":%s ", reset);
+ emit_line_with_ws(1, set, reset, ws, line, len);
+ }
data->lineno++;
} else if (line[0] == ' ')
@@ -1020,8 +1066,8 @@ static void builtin_diff(const char *name_a,
const char *set = diff_get_color(o->color_diff, DIFF_METAINFO);
const char *reset = diff_get_color(o->color_diff, DIFF_RESET);
- a_one = quote_two("a/", name_a);
- b_two = quote_two("b/", name_b);
+ a_one = quote_two("a/", name_a + (*name_a == '/'));
+ b_two = quote_two("b/", name_b + (*name_b == '/'));
lbl[0] = DIFF_FILE_VALID(one) ? a_one : "/dev/null";
lbl[1] = DIFF_FILE_VALID(two) ? b_two : "/dev/null";
printf("%sdiff --git %s %s%s\n", set, a_one, b_two, reset);
@@ -1050,7 +1096,8 @@ static void builtin_diff(const char *name_a,
if ((one->mode ^ two->mode) & S_IFMT)
goto free_ab_and_return;
if (complete_rewrite) {
- emit_rewrite_diff(name_a, name_b, one, two);
+ emit_rewrite_diff(name_a, name_b, one, two,
+ o->color_diff);
goto free_ab_and_return;
}
}
@@ -1085,9 +1132,9 @@ static void builtin_diff(const char *name_a,
xecfg.flags = XDL_EMIT_FUNCNAMES;
if (!diffopts)
;
- else if (!strncmp(diffopts, "--unified=", 10))
+ else if (!prefixcmp(diffopts, "--unified="))
xecfg.ctxlen = strtoul(diffopts + 10, NULL, 10);
- else if (!strncmp(diffopts, "-u", 2))
+ else if (!prefixcmp(diffopts, "-u"))
xecfg.ctxlen = strtoul(diffopts + 2, NULL, 10);
ecb.outf = xdiff_outf;
ecb.priv = &ecbdata;
@@ -1151,7 +1198,7 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
static void builtin_checkdiff(const char *name_a, const char *name_b,
struct diff_filespec *one,
- struct diff_filespec *two)
+ struct diff_filespec *two, struct diff_options *o)
{
mmfile_t mf1, mf2;
struct checkdiff_t data;
@@ -1163,6 +1210,7 @@ static void builtin_checkdiff(const char *name_a, const char *name_b,
data.xm.consume = checkdiff_consume;
data.filename = name_b ? name_b : name_a;
data.lineno = 0;
+ data.color_diff = o->color_diff;
if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
die("unable to read files to diff");
@@ -1332,6 +1380,9 @@ int diff_populate_filespec(struct diff_filespec *s, int size_only)
reuse_worktree_file(s->path, s->sha1, 0)) {
struct stat st;
int fd;
+ char *buf;
+ unsigned long size;
+
if (lstat(s->path, &st) < 0) {
if (errno == ENOENT) {
err_empty:
@@ -1364,10 +1415,22 @@ int diff_populate_filespec(struct diff_filespec *s, int size_only)
s->data = xmmap(NULL, s->size, PROT_READ, MAP_PRIVATE, fd, 0);
close(fd);
s->should_munmap = 1;
- /* FIXME! CRLF -> LF conversion goes here, based on "s->path" */
+
+ /*
+ * Convert from working tree format to canonical git format
+ */
+ buf = s->data;
+ size = s->size;
+ if (convert_to_git(s->path, &buf, &size)) {
+ munmap(s->data, s->size);
+ s->should_munmap = 0;
+ s->data = buf;
+ s->size = size;
+ s->should_free = 1;
+ }
}
else {
- char type[20];
+ enum object_type type;
struct sha1_size_cache *e;
if (size_only) {
@@ -1376,11 +1439,12 @@ int diff_populate_filespec(struct diff_filespec *s, int size_only)
s->size = e->size;
return 0;
}
- if (!sha1_object_info(s->sha1, type, &s->size))
+ type = sha1_object_info(s->sha1, &s->size);
+ if (type < 0)
locate_size_cache(s->sha1, 0, s->size);
}
else {
- s->data = read_sha1_file(s->sha1, type, &s->size);
+ s->data = read_sha1_file(s->sha1, &type, &s->size);
s->should_free = 1;
}
}
@@ -1773,7 +1837,7 @@ static void run_checkdiff(struct diff_filepair *p, struct diff_options *o)
diff_fill_sha1_info(p->one);
diff_fill_sha1_info(p->two);
- builtin_checkdiff(name, other, p->one, p->two);
+ builtin_checkdiff(name, other, p->one, p->two, o);
}
void diff_setup(struct diff_options *options)
@@ -1922,7 +1986,7 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
else if (!strcmp(arg, "--shortstat")) {
options->output_format |= DIFF_FORMAT_SHORTSTAT;
}
- else if (!strncmp(arg, "--stat", 6)) {
+ else if (!prefixcmp(arg, "--stat")) {
char *end;
int width = options->stat_width;
int name_width = options->stat_name_width;
@@ -1931,9 +1995,9 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
switch (*arg) {
case '-':
- if (!strncmp(arg, "-width=", 7))
+ if (!prefixcmp(arg, "-width="))
width = strtoul(arg + 7, &end, 10);
- else if (!strncmp(arg, "-name-width=", 12))
+ else if (!prefixcmp(arg, "-name-width="))
name_width = strtoul(arg + 12, &end, 10);
break;
case '=':
@@ -1958,7 +2022,7 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
}
else if (!strcmp(arg, "-z"))
options->line_termination = 0;
- else if (!strncmp(arg, "-l", 2))
+ else if (!prefixcmp(arg, "-l"))
options->rename_limit = strtoul(arg+2, NULL, 10);
else if (!strcmp(arg, "--full-index"))
options->full_index = 1;
@@ -1975,31 +2039,31 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
options->output_format |= DIFF_FORMAT_NAME_STATUS;
else if (!strcmp(arg, "-R"))
options->reverse_diff = 1;
- else if (!strncmp(arg, "-S", 2))
+ else if (!prefixcmp(arg, "-S"))
options->pickaxe = arg + 2;
else if (!strcmp(arg, "-s")) {
options->output_format |= DIFF_FORMAT_NO_OUTPUT;
}
- else if (!strncmp(arg, "-O", 2))
+ else if (!prefixcmp(arg, "-O"))
options->orderfile = arg + 2;
- else if (!strncmp(arg, "--diff-filter=", 14))
+ else if (!prefixcmp(arg, "--diff-filter="))
options->filter = arg + 14;
else if (!strcmp(arg, "--pickaxe-all"))
options->pickaxe_opts = DIFF_PICKAXE_ALL;
else if (!strcmp(arg, "--pickaxe-regex"))
options->pickaxe_opts = DIFF_PICKAXE_REGEX;
- else if (!strncmp(arg, "-B", 2)) {
+ else if (!prefixcmp(arg, "-B")) {
if ((options->break_opt =
diff_scoreopt_parse(arg)) == -1)
return -1;
}
- else if (!strncmp(arg, "-M", 2)) {
+ else if (!prefixcmp(arg, "-M")) {
if ((options->rename_score =
diff_scoreopt_parse(arg)) == -1)
return -1;
options->detect_rename = DIFF_DETECT_RENAME;
}
- else if (!strncmp(arg, "-C", 2)) {
+ else if (!prefixcmp(arg, "-C")) {
if ((options->rename_score =
diff_scoreopt_parse(arg)) == -1)
return -1;
@@ -2009,7 +2073,7 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
options->find_copies_harder = 1;
else if (!strcmp(arg, "--abbrev"))
options->abbrev = DEFAULT_ABBREV;
- else if (!strncmp(arg, "--abbrev=", 9)) {
+ else if (!prefixcmp(arg, "--abbrev=")) {
options->abbrev = strtoul(arg + 9, NULL, 10);
if (options->abbrev < MINIMUM_ABBREV)
options->abbrev = MINIMUM_ABBREV;
@@ -2024,6 +2088,8 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
options->xdl_opts |= XDF_IGNORE_WHITESPACE;
else if (!strcmp(arg, "-b") || !strcmp(arg, "--ignore-space-change"))
options->xdl_opts |= XDF_IGNORE_WHITESPACE_CHANGE;
+ else if (!strcmp(arg, "--ignore-space-at-eol"))
+ options->xdl_opts |= XDF_IGNORE_WHITESPACE_AT_EOL;
else if (!strcmp(arg, "--color-words"))
options->color_diff = options->color_diff_words = 1;
else if (!strcmp(arg, "--no-renames"))
@@ -2516,7 +2582,7 @@ static void patch_id_consume(void *priv, char *line, unsigned long len)
int new_len;
/* Ignore line numbers when computing the SHA1 of the patch */
- if (!strncmp(line, "@@ -", 4))
+ if (!prefixcmp(line, "@@ -"))
return;
new_len = remove_space(line, len);
View Lorry Controller Status