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Merge branch 'jc/diff-relative'

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* jc/diff-relative:
  diff --relative: help working in a bare repository
  diff --relative: output paths as relative to the current subdirectory
This commit is contained in:
Junio C Hamano
2008-02-27 11:55:28 -08:00
parent b82b096b8c c0cb4a0679
commit 860cc3a4f9
5 changed files with 115 additions and 21 deletions
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110
diff.c
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@ -1483,6 +1483,7 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
}
static void builtin_checkdiff(const char *name_a, const char *name_b,
const char *attr_path,
struct diff_filespec *one,
struct diff_filespec *two, struct diff_options *o)
{
@ -1497,7 +1498,7 @@ static void builtin_checkdiff(const char *name_a, const char *name_b,
data.filename = name_b ? name_b : name_a;
data.lineno = 0;
data.color_diff = DIFF_OPT_TST(o, COLOR_DIFF);
data.ws_rule = whitespace_rule(data.filename);
data.ws_rule = whitespace_rule(attr_path);
if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
die("unable to read files to diff");
@ -1922,6 +1923,9 @@ static const char *external_diff_attr(const char *name)
{
struct git_attr_check attr_diff_check;
if (!name)
return NULL;
setup_diff_attr_check(&attr_diff_check);
if (!git_checkattr(name, 1, &attr_diff_check)) {
const char *value = attr_diff_check.value;
@ -1941,6 +1945,7 @@ static const char *external_diff_attr(const char *name)
static void run_diff_cmd(const char *pgm,
const char *name,
const char *other,
const char *attr_path,
struct diff_filespec *one,
struct diff_filespec *two,
const char *xfrm_msg,
@ -1950,7 +1955,7 @@ static void run_diff_cmd(const char *pgm,
if (!DIFF_OPT_TST(o, ALLOW_EXTERNAL))
pgm = NULL;
else {
const char *cmd = external_diff_attr(name);
const char *cmd = external_diff_attr(attr_path);
if (cmd)
pgm = cmd;
}
@ -1991,6 +1996,15 @@ static int similarity_index(struct diff_filepair *p)
return p->score * 100 / MAX_SCORE;
}
static void strip_prefix(int prefix_length, const char **namep, const char **otherp)
{
/* Strip the prefix but do not molest /dev/null and absolute paths */
if (*namep && **namep != '/')
*namep += prefix_length;
if (*otherp && **otherp != '/')
*otherp += prefix_length;
}
static void run_diff(struct diff_filepair *p, struct diff_options *o)
{
const char *pgm = external_diff();
@ -2000,16 +2014,21 @@ static void run_diff(struct diff_filepair *p, struct diff_options *o)
struct diff_filespec *two = p->two;
const char *name;
const char *other;
const char *attr_path;
int complete_rewrite = 0;
if (DIFF_PAIR_UNMERGED(p)) {
run_diff_cmd(pgm, p->one->path, NULL, NULL, NULL, NULL, o, 0);
return;
}
name = p->one->path;
other = (strcmp(name, p->two->path) ? p->two->path : NULL);
attr_path = name;
if (o->prefix_length)
strip_prefix(o->prefix_length, &name, &other);
if (DIFF_PAIR_UNMERGED(p)) {
run_diff_cmd(pgm, name, NULL, attr_path,
NULL, NULL, NULL, o, 0);
return;
}
diff_fill_sha1_info(one);
diff_fill_sha1_info(two);
@ -2072,15 +2091,17 @@ static void run_diff(struct diff_filepair *p, struct diff_options *o)
* needs to be split into deletion and creation.
*/
struct diff_filespec *null = alloc_filespec(two->path);
run_diff_cmd(NULL, name, other, one, null, xfrm_msg, o, 0);
run_diff_cmd(NULL, name, other, attr_path,
one, null, xfrm_msg, o, 0);
free(null);
null = alloc_filespec(one->path);
run_diff_cmd(NULL, name, other, null, two, xfrm_msg, o, 0);
run_diff_cmd(NULL, name, other, attr_path,
null, two, xfrm_msg, o, 0);
free(null);
}
else
run_diff_cmd(pgm, name, other, one, two, xfrm_msg, o,
complete_rewrite);
run_diff_cmd(pgm, name, other, attr_path,
one, two, xfrm_msg, o, complete_rewrite);
strbuf_release(&msg);
}
@ -2101,6 +2122,9 @@ static void run_diffstat(struct diff_filepair *p, struct diff_options *o,
name = p->one->path;
other = (strcmp(name, p->two->path) ? p->two->path : NULL);
if (o->prefix_length)
strip_prefix(o->prefix_length, &name, &other);
diff_fill_sha1_info(p->one);
diff_fill_sha1_info(p->two);
@ -2113,6 +2137,7 @@ static void run_checkdiff(struct diff_filepair *p, struct diff_options *o)
{
const char *name;
const char *other;
const char *attr_path;
if (DIFF_PAIR_UNMERGED(p)) {
/* unmerged */
@ -2121,11 +2146,15 @@ static void run_checkdiff(struct diff_filepair *p, struct diff_options *o)
name = p->one->path;
other = (strcmp(name, p->two->path) ? p->two->path : NULL);
attr_path = other ? other : name;
if (o->prefix_length)
strip_prefix(o->prefix_length, &name, &other);
diff_fill_sha1_info(p->one);
diff_fill_sha1_info(p->two);
builtin_checkdiff(name, other, p->one, p->two, o);
builtin_checkdiff(name, other, attr_path, p->one, p->two, o);
}
void diff_setup(struct diff_options *options)
@ -2168,6 +2197,13 @@ int diff_setup_done(struct diff_options *options)
if (DIFF_OPT_TST(options, FIND_COPIES_HARDER))
options->detect_rename = DIFF_DETECT_COPY;
if (!DIFF_OPT_TST(options, RELATIVE_NAME))
options->prefix = NULL;
if (options->prefix)
options->prefix_length = strlen(options->prefix);
else
options->prefix_length = 0;
if (options->output_format & (DIFF_FORMAT_NAME |
DIFF_FORMAT_NAME_STATUS |
DIFF_FORMAT_CHECKDIFF |
@ -2362,6 +2398,12 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
}
else if (!strcmp(arg, "--no-renames"))
options->detect_rename = 0;
else if (!strcmp(arg, "--relative"))
DIFF_OPT_SET(options, RELATIVE_NAME);
else if (!prefixcmp(arg, "--relative=")) {
DIFF_OPT_SET(options, RELATIVE_NAME);
options->prefix = arg + 11;
}
/* xdiff options */
else if (!strcmp(arg, "-w") || !strcmp(arg, "--ignore-all-space"))
@ -2573,12 +2615,20 @@ static void diff_flush_raw(struct diff_filepair *p, struct diff_options *opt)
printf("%c%c", p->status, inter_name_termination);
}
if (p->status == DIFF_STATUS_COPIED || p->status == DIFF_STATUS_RENAMED) {
write_name_quoted(p->one->path, stdout, inter_name_termination);
write_name_quoted(p->two->path, stdout, line_termination);
if (p->status == DIFF_STATUS_COPIED ||
p->status == DIFF_STATUS_RENAMED) {
const char *name_a, *name_b;
name_a = p->one->path;
name_b = p->two->path;
strip_prefix(opt->prefix_length, &name_a, &name_b);
write_name_quoted(name_a, stdout, inter_name_termination);
write_name_quoted(name_b, stdout, line_termination);
} else {
const char *path = p->one->mode ? p->one->path : p->two->path;
write_name_quoted(path, stdout, line_termination);
const char *name_a, *name_b;
name_a = p->one->mode ? p->one->path : p->two->path;
name_b = NULL;
strip_prefix(opt->prefix_length, &name_a, &name_b);
write_name_quoted(name_a, stdout, line_termination);
}
}
@ -2775,8 +2825,13 @@ static void flush_one_pair(struct diff_filepair *p, struct diff_options *opt)
diff_flush_checkdiff(p, opt);
else if (fmt & (DIFF_FORMAT_RAW | DIFF_FORMAT_NAME_STATUS))
diff_flush_raw(p, opt);
else if (fmt & DIFF_FORMAT_NAME)
write_name_quoted(p->two->path, stdout, opt->line_termination);
else if (fmt & DIFF_FORMAT_NAME) {
const char *name_a, *name_b;
name_a = p->two->path;
name_b = NULL;
strip_prefix(opt->prefix_length, &name_a, &name_b);
write_name_quoted(name_a, stdout, opt->line_termination);
}
}
static void show_file_mode_name(const char *newdelete, struct diff_filespec *fs)
@ -3264,6 +3319,11 @@ void diff_addremove(struct diff_options *options,
if (!path) path = "";
sprintf(concatpath, "%s%s", base, path);
if (options->prefix &&
strncmp(concatpath, options->prefix, options->prefix_length))
return;
one = alloc_filespec(concatpath);
two = alloc_filespec(concatpath);
@ -3293,6 +3353,11 @@ void diff_change(struct diff_options *options,
}
if (!path) path = "";
sprintf(concatpath, "%s%s", base, path);
if (options->prefix &&
strncmp(concatpath, options->prefix, options->prefix_length))
return;
one = alloc_filespec(concatpath);
two = alloc_filespec(concatpath);
fill_filespec(one, old_sha1, old_mode);
@ -3307,6 +3372,11 @@ void diff_unmerge(struct diff_options *options,
unsigned mode, const unsigned char *sha1)
{
struct diff_filespec *one, *two;
if (options->prefix &&
strncmp(path, options->prefix, options->prefix_length))
return;
one = alloc_filespec(path);
two = alloc_filespec(path);
fill_filespec(one, sha1, mode);