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index f644947c823e824a294414a660beac02b4182fe4..d23548292ad319defd691655409098f824ec9e94 100644 (file)
--- a/diff.c
+++ b/diff.c
const char *name_b,
struct diff_filespec *one,
struct diff_filespec *two,
+ const char *textconv_one,
+ const char *textconv_two,
struct diff_options *o)
{
int lc_a, lc_b;
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;
if (diff_mnemonic_prefix && DIFF_OPT_TST(o, REVERSE_DIFF)) {
a_prefix = o->b_prefix;
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);
+ if (textconv_one) {
+ data_one = run_textconv(textconv_one, one, &size_one);
+ if (!data_one)
+ die("unable to read files to diff");
+ }
+ else {
+ data_one = one->data;
+ size_one = one->size;
+ }
+ if (textconv_two) {
+ data_two = run_textconv(textconv_two, two, &size_two);
+ if (!data_two)
+ die("unable to read files to diff");
+ }
+ else {
+ data_two = two->data;
+ size_two = two->size;
+ }
+
+ lc_a = count_lines(data_one, size_one);
+ lc_b = count_lines(data_two, size_two);
fprintf(o->file,
"%s--- %s%s%s\n%s+++ %s%s%s\n%s@@ -",
metainfo, a_name.buf, name_a_tab, reset,
print_line_count(o->file, lc_b);
fprintf(o->file, " @@%s\n", reset);
if (lc_a)
- copy_file_with_prefix(o->file, '-', one->data, one->size, old, reset);
+ copy_file_with_prefix(o->file, '-', data_one, size_one, old, reset);
if (lc_b)
- copy_file_with_prefix(o->file, '+', two->data, two->size, new, reset);
+ copy_file_with_prefix(o->file, '+', data_two, size_two, new, reset);
}
static int fill_mmfile(mmfile_t *mf, struct diff_filespec *one)
const char *a_prefix, *b_prefix;
const char *textconv_one = NULL, *textconv_two = NULL;
+ if (DIFF_OPT_TST(o, ALLOW_TEXTCONV)) {
+ textconv_one = get_textconv(one);
+ textconv_two = get_textconv(two);
+ }
+
diff_set_mnemonic_prefix(o, "a/", "b/");
if (DIFF_OPT_TST(o, REVERSE_DIFF)) {
a_prefix = o->b_prefix;
*/
if ((one->mode ^ two->mode) & S_IFMT)
goto free_ab_and_return;
- if (complete_rewrite) {
- emit_rewrite_diff(name_a, name_b, one, two, o);
+ if (complete_rewrite &&
+ (textconv_one || !diff_filespec_is_binary(one)) &&
+ (textconv_two || !diff_filespec_is_binary(two))) {
+ emit_rewrite_diff(name_a, name_b, one, two,
+ textconv_one, textconv_two, o);
o->found_changes = 1;
goto free_ab_and_return;
}
if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
die("unable to read files to diff");
- if (DIFF_OPT_TST(o, ALLOW_TEXTCONV)) {
- textconv_one = get_textconv(one);
- textconv_two = get_textconv(two);
- }
-
if (!DIFF_OPT_TST(o, TEXT) &&
( (diff_filespec_is_binary(one) && !textconv_one) ||
(diff_filespec_is_binary(two) && !textconv_two) )) {
ecbdata.file = o->file;
xpp.flags = XDF_NEED_MINIMAL | o->xdl_opts;
xecfg.ctxlen = o->context;
+ xecfg.interhunkctxlen = o->interhunkcontext;
xecfg.flags = XDL_EMIT_FUNCNAMES;
if (pe)
xdiff_set_find_func(&xecfg, pe->pattern, pe->cflags);
s->size = xsize_t(st.st_size);
if (!s->size)
goto empty;
- if (size_only)
- return 0;
if (S_ISLNK(st.st_mode)) {
- int ret;
- s->data = xmalloc(s->size);
- s->should_free = 1;
- ret = readlink(s->path, s->data, s->size);
- if (ret < 0) {
- free(s->data);
+ struct strbuf sb = STRBUF_INIT;
+
+ if (strbuf_readlink(&sb, s->path, s->size))
goto err_empty;
- }
+ s->size = sb.len;
+ s->data = strbuf_detach(&sb, NULL);
+ s->should_free = 1;
return 0;
}
+ if (size_only)
+ return 0;
fd = open(s->path, O_RDONLY);
if (fd < 0)
goto err_empty;
if (S_ISLNK(st.st_mode)) {
int ret;
char buf[PATH_MAX + 1]; /* ought to be SYMLINK_MAX */
- size_t sz = xsize_t(st.st_size);
- if (sizeof(buf) <= st.st_size)
- die("symlink too long: %s", name);
- ret = readlink(name, buf, sz);
+ ret = readlink(name, buf, sizeof(buf));
if (ret < 0)
die("readlink(%s)", name);
- prep_temp_blob(temp, buf, sz,
+ if (ret == sizeof(buf))
+ die("symlink too long: %s", name);
+ prep_temp_blob(temp, buf, ret,
(one->sha1_valid ?
one->sha1 : null_sha1),
(one->sha1_valid ?
if (lstat(one->path, &st) < 0)
die("stat %s", one->path);
if (index_path(one->sha1, one->path, &st, 0))
- die("cannot hash %s\n", one->path);
+ die("cannot hash %s", one->path);
}
}
else
DIFF_OPT_SET(options, ALLOW_EXTERNAL);
else if (!strcmp(arg, "--no-ext-diff"))
DIFF_OPT_CLR(options, ALLOW_EXTERNAL);
+ else if (!strcmp(arg, "--textconv"))
+ DIFF_OPT_SET(options, ALLOW_TEXTCONV);
+ else if (!strcmp(arg, "--no-textconv"))
+ DIFF_OPT_CLR(options, ALLOW_TEXTCONV);
else if (!strcmp(arg, "--ignore-submodules"))
DIFF_OPT_SET(options, IGNORE_SUBMODULES);
options->b_prefix = arg + 13;
else if (!strcmp(arg, "--no-prefix"))
options->a_prefix = options->b_prefix = "";
+ else if (opt_arg(arg, '\0', "inter-hunk-context",
+ &options->interhunkcontext))
+ ;
else if (!prefixcmp(arg, "--output=")) {
options->file = fopen(arg + strlen("--output="), "w");
options->close_file = 1;