git/wt-status.c
Junio C Hamano 039bc64e88 core.excludesfile clean-up
There are inconsistencies in the way commands currently handle
the core.excludesfile configuration variable.  The problem is
the variable is too new to be noticed by anything other than
git-add and git-status.

 * git-ls-files does not notice any of the "ignore" files by
   default, as it predates the standardized set of ignore files.
   The calling scripts established the convention to use
   .git/info/exclude, .gitignore, and later core.excludesfile.

 * git-add and git-status know about it because they call
   add_excludes_from_file() directly with their own notion of
   which standard set of ignore files to use.  This is just a
   stupid duplication of code that need to be updated every time
   the definition of the standard set of ignore files is
   changed.

 * git-read-tree takes --exclude-per-directory=<gitignore>,
   not because the flexibility was needed.  Again, this was
   because the option predates the standardization of the ignore
   files.

 * git-merge-recursive uses hardcoded per-directory .gitignore
   and nothing else.  git-clean (scripted version) does not
   honor core.* because its call to underlying ls-files does not
   know about it.  git-clean in C (parked in 'pu') doesn't either.

We probably could change git-ls-files to use the standard set
when no excludes are specified on the command line and ignore
processing was asked, or something like that, but that will be a
change in semantics and might break people's scripts in a subtle
way.  I am somewhat reluctant to make such a change.

On the other hand, I think it makes perfect sense to fix
git-read-tree, git-merge-recursive and git-clean to follow the
same rule as other commands.  I do not think of a valid use case
to give an exclude-per-directory that is nonstandard to
read-tree command, outside a "negative" test in the t1004 test
script.

This patch is the first step to untangle this mess.

The next step would be to teach read-tree, merge-recursive and
clean (in C) to use setup_standard_excludes().

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-14 15:08:04 -08:00

362 lines
9.3 KiB
C

#include "cache.h"
#include "wt-status.h"
#include "color.h"
#include "object.h"
#include "dir.h"
#include "commit.h"
#include "diff.h"
#include "revision.h"
#include "diffcore.h"
int wt_status_use_color = 0;
static char wt_status_colors[][COLOR_MAXLEN] = {
"", /* WT_STATUS_HEADER: normal */
"\033[32m", /* WT_STATUS_UPDATED: green */
"\033[31m", /* WT_STATUS_CHANGED: red */
"\033[31m", /* WT_STATUS_UNTRACKED: red */
};
static const char use_add_msg[] =
"use \"git add <file>...\" to update what will be committed";
static const char use_add_rm_msg[] =
"use \"git add/rm <file>...\" to update what will be committed";
static const char use_add_to_include_msg[] =
"use \"git add <file>...\" to include in what will be committed";
static int parse_status_slot(const char *var, int offset)
{
if (!strcasecmp(var+offset, "header"))
return WT_STATUS_HEADER;
if (!strcasecmp(var+offset, "updated")
|| !strcasecmp(var+offset, "added"))
return WT_STATUS_UPDATED;
if (!strcasecmp(var+offset, "changed"))
return WT_STATUS_CHANGED;
if (!strcasecmp(var+offset, "untracked"))
return WT_STATUS_UNTRACKED;
die("bad config variable '%s'", var);
}
static const char* color(int slot)
{
return wt_status_use_color ? wt_status_colors[slot] : "";
}
void wt_status_prepare(struct wt_status *s)
{
unsigned char sha1[20];
const char *head;
memset(s, 0, sizeof(*s));
head = resolve_ref("HEAD", sha1, 0, NULL);
s->branch = head ? xstrdup(head) : NULL;
s->reference = "HEAD";
s->fp = stdout;
s->index_file = get_index_file();
}
static void wt_status_print_cached_header(struct wt_status *s)
{
const char *c = color(WT_STATUS_HEADER);
color_fprintf_ln(s->fp, c, "# Changes to be committed:");
if (s->reference) {
color_fprintf_ln(s->fp, c, "# (use \"git reset %s <file>...\" to unstage)", s->reference);
} else {
color_fprintf_ln(s->fp, c, "# (use \"git rm --cached <file>...\" to unstage)");
}
color_fprintf_ln(s->fp, c, "#");
}
static void wt_status_print_header(struct wt_status *s,
const char *main, const char *sub)
{
const char *c = color(WT_STATUS_HEADER);
color_fprintf_ln(s->fp, c, "# %s:", main);
color_fprintf_ln(s->fp, c, "# (%s)", sub);
color_fprintf_ln(s->fp, c, "#");
}
static void wt_status_print_trailer(struct wt_status *s)
{
color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
}
static const char *quote_crlf(const char *in, char *buf, size_t sz)
{
const char *scan;
char *out;
const char *ret = in;
for (scan = in, out = buf; *scan; scan++) {
int ch = *scan;
int quoted;
switch (ch) {
case '\n':
quoted = 'n';
break;
case '\r':
quoted = 'r';
break;
default:
*out++ = ch;
continue;
}
*out++ = '\\';
*out++ = quoted;
ret = buf;
}
*out = '\0';
return ret;
}
static void wt_status_print_filepair(struct wt_status *s,
int t, struct diff_filepair *p)
{
const char *c = color(t);
const char *one, *two;
char onebuf[PATH_MAX], twobuf[PATH_MAX];
one = quote_crlf(p->one->path, onebuf, sizeof(onebuf));
two = quote_crlf(p->two->path, twobuf, sizeof(twobuf));
color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
switch (p->status) {
case DIFF_STATUS_ADDED:
color_fprintf(s->fp, c, "new file: %s", one);
break;
case DIFF_STATUS_COPIED:
color_fprintf(s->fp, c, "copied: %s -> %s", one, two);
break;
case DIFF_STATUS_DELETED:
color_fprintf(s->fp, c, "deleted: %s", one);
break;
case DIFF_STATUS_MODIFIED:
color_fprintf(s->fp, c, "modified: %s", one);
break;
case DIFF_STATUS_RENAMED:
color_fprintf(s->fp, c, "renamed: %s -> %s", one, two);
break;
case DIFF_STATUS_TYPE_CHANGED:
color_fprintf(s->fp, c, "typechange: %s", one);
break;
case DIFF_STATUS_UNKNOWN:
color_fprintf(s->fp, c, "unknown: %s", one);
break;
case DIFF_STATUS_UNMERGED:
color_fprintf(s->fp, c, "unmerged: %s", one);
break;
default:
die("bug: unhandled diff status %c", p->status);
}
fprintf(s->fp, "\n");
}
static void wt_status_print_updated_cb(struct diff_queue_struct *q,
struct diff_options *options,
void *data)
{
struct wt_status *s = data;
int shown_header = 0;
int i;
for (i = 0; i < q->nr; i++) {
if (q->queue[i]->status == 'U')
continue;
if (!shown_header) {
wt_status_print_cached_header(s);
s->commitable = 1;
shown_header = 1;
}
wt_status_print_filepair(s, WT_STATUS_UPDATED, q->queue[i]);
}
if (shown_header)
wt_status_print_trailer(s);
}
static void wt_status_print_changed_cb(struct diff_queue_struct *q,
struct diff_options *options,
void *data)
{
struct wt_status *s = data;
int i;
if (q->nr) {
const char *msg = use_add_msg;
s->workdir_dirty = 1;
for (i = 0; i < q->nr; i++)
if (q->queue[i]->status == DIFF_STATUS_DELETED) {
msg = use_add_rm_msg;
break;
}
wt_status_print_header(s, "Changed but not updated", msg);
}
for (i = 0; i < q->nr; i++)
wt_status_print_filepair(s, WT_STATUS_CHANGED, q->queue[i]);
if (q->nr)
wt_status_print_trailer(s);
}
static void wt_read_cache(struct wt_status *s)
{
discard_cache();
read_cache_from(s->index_file);
}
static void wt_status_print_initial(struct wt_status *s)
{
int i;
char buf[PATH_MAX];
wt_read_cache(s);
if (active_nr) {
s->commitable = 1;
wt_status_print_cached_header(s);
}
for (i = 0; i < active_nr; i++) {
color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
color_fprintf_ln(s->fp, color(WT_STATUS_UPDATED), "new file: %s",
quote_crlf(active_cache[i]->name,
buf, sizeof(buf)));
}
if (active_nr)
wt_status_print_trailer(s);
}
static void wt_status_print_updated(struct wt_status *s)
{
struct rev_info rev;
init_revisions(&rev, NULL);
setup_revisions(0, NULL, &rev, s->reference);
rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
rev.diffopt.format_callback = wt_status_print_updated_cb;
rev.diffopt.format_callback_data = s;
rev.diffopt.detect_rename = 1;
rev.diffopt.rename_limit = 100;
wt_read_cache(s);
run_diff_index(&rev, 1);
}
static void wt_status_print_changed(struct wt_status *s)
{
struct rev_info rev;
init_revisions(&rev, "");
setup_revisions(0, NULL, &rev, NULL);
rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
rev.diffopt.format_callback = wt_status_print_changed_cb;
rev.diffopt.format_callback_data = s;
wt_read_cache(s);
run_diff_files(&rev, 0);
}
static void wt_status_print_untracked(struct wt_status *s)
{
struct dir_struct dir;
int i;
int shown_header = 0;
memset(&dir, 0, sizeof(dir));
if (!s->untracked) {
dir.show_other_directories = 1;
dir.hide_empty_directories = 1;
}
setup_standard_excludes(&dir);
read_directory(&dir, ".", "", 0, NULL);
for(i = 0; i < dir.nr; i++) {
/* check for matching entry, which is unmerged; lifted from
* builtin-ls-files:show_other_files */
struct dir_entry *ent = dir.entries[i];
int pos = cache_name_pos(ent->name, ent->len);
struct cache_entry *ce;
if (0 <= pos)
die("bug in wt_status_print_untracked");
pos = -pos - 1;
if (pos < active_nr) {
ce = active_cache[pos];
if (ce_namelen(ce) == ent->len &&
!memcmp(ce->name, ent->name, ent->len))
continue;
}
if (!shown_header) {
s->workdir_untracked = 1;
wt_status_print_header(s, "Untracked files",
use_add_to_include_msg);
shown_header = 1;
}
color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED), "%.*s",
ent->len, ent->name);
}
}
static void wt_status_print_verbose(struct wt_status *s)
{
struct rev_info rev;
init_revisions(&rev, NULL);
setup_revisions(0, NULL, &rev, s->reference);
rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
rev.diffopt.detect_rename = 1;
wt_read_cache(s);
run_diff_index(&rev, 1);
}
void wt_status_print(struct wt_status *s)
{
unsigned char sha1[20];
s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
if (s->branch) {
const char *on_what = "On branch ";
const char *branch_name = s->branch;
if (!prefixcmp(branch_name, "refs/heads/"))
branch_name += 11;
else if (!strcmp(branch_name, "HEAD")) {
branch_name = "";
on_what = "Not currently on any branch.";
}
color_fprintf_ln(s->fp, color(WT_STATUS_HEADER),
"# %s%s", on_what, branch_name);
}
if (s->is_initial) {
color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "# Initial commit");
color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
wt_status_print_initial(s);
}
else {
wt_status_print_updated(s);
}
wt_status_print_changed(s);
wt_status_print_untracked(s);
if (s->verbose && !s->is_initial)
wt_status_print_verbose(s);
if (!s->commitable) {
if (s->amend)
fprintf(s->fp, "# No changes\n");
else if (s->workdir_dirty)
printf("no changes added to commit (use \"git add\" and/or \"git commit -a\")\n");
else if (s->workdir_untracked)
printf("nothing added to commit but untracked files present (use \"git add\" to track)\n");
else if (s->is_initial)
printf("nothing to commit (create/copy files and use \"git add\" to track)\n");
else
printf("nothing to commit (working directory clean)\n");
}
}
int git_status_config(const char *k, const char *v)
{
if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
wt_status_use_color = git_config_colorbool(k, v);
return 0;
}
if (!prefixcmp(k, "status.color.") || !prefixcmp(k, "color.status.")) {
int slot = parse_status_slot(k, 13);
color_parse(v, k, wt_status_colors[slot]);
}
return git_default_config(k, v);
}