Before 425a28e0a4 (diff-lib: allow ita entries treated as "not yet exist
in index" - 2016-10-24) there are never "new files" in the index, which
essentially disables rename detection because we only detect renames
when a new file appears in a diff pair.
After that commit, an i-t-a entry can appear as a new file in "git
diff-files". But the diff callback function in wt-status.c does not
handle this case and produces incorrect status output.
PS. The reader may notice that this patch adds a new xstrdup() but not
a free(). Yes we leak memory (the same for head_path). But wt_status
so far has been short lived, this leak should not matter in
practice.
Noticed-by: Alex Vandiver <ale...@dropbox.com>
Helped-by: Igor Djordjevic <igor.d.djordje...@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com>
---
t/t2203-add-intent.sh | 28 ++++++++++++++++++++
wt-status.c | 72 +++++++++++++++++++++++++++++++++++++++------------
wt-status.h | 4 +--
3 files changed, 85 insertions(+), 19 deletions(-)
diff --git a/t/t2203-add-intent.sh b/t/t2203-add-intent.sh
index 878e73fe98..e5bfda1853 100755
--- a/t/t2203-add-intent.sh
+++ b/t/t2203-add-intent.sh
@@ -162,5 +162,33 @@ test_expect_success 'commit: ita entries ignored in empty
commit check' '
)
'
+test_expect_success 'rename detection finds the right names' '
+ git init rename-detection &&
+ (
+ cd rename-detection &&
+ echo contents > first &&
+ git add first &&
+ git commit -m first &&
+ mv first third &&
+ git add -N third &&
+
+ git status | grep -v "^?" >actual.1 &&
+ test_i18ngrep "renamed: *first -> third" actual.1 &&
+
+ git status --porcelain | grep -v "^?" >actual.2 &&
+ cat >expected.2 <<-\EOF &&
+ R first -> third
+ EOF
+ test_cmp expected.2 actual.2 &&
+
+ oid=12f00e90b6ef79117ce6e650416b8cf517099b78 &&
+ git status --porcelain=v2 | grep -v "^?" >actual.3 &&
+ cat >expected.3 <<-EOF &&
+ 2 .R N... 100644 100644 100644 $oid $oid R100 first third
+ EOF
+ test_cmp expected.3 actual.3
+ )
+'
+
test_done
diff --git a/wt-status.c b/wt-status.c
index c124d7589c..d5bdf4c2e9 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -376,6 +376,8 @@ static void wt_longstatus_print_change_data(struct
wt_status *s,
strbuf_addch(&extra, ')');
}
status = d->worktree_status;
+ if (d->worktree_path)
+ two_name = d->worktree_path;
break;
default:
die("BUG: unhandled change_type %d in
wt_longstatus_print_change_data",
@@ -460,6 +462,12 @@ static void wt_status_collect_changed_cb(struct
diff_queue_struct *q,
/* mode_worktree is zero for a delete. */
break;
+ case DIFF_STATUS_COPIED:
+ case DIFF_STATUS_RENAMED:
+ d->worktree_path = xstrdup(p->two->path);
+ d->worktree_score = p->score * 100 / MAX_SCORE;
+ /* fallthru */
+
case DIFF_STATUS_MODIFIED:
case DIFF_STATUS_TYPE_CHANGED:
case DIFF_STATUS_UNMERGED:
@@ -1712,6 +1720,7 @@ static void wt_shortstatus_status(struct string_list_item
*it,
struct wt_status *s)
{
struct wt_status_change_data *d = it->util;
+ const char *from, *to;
if (d->index_status)
color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c",
d->index_status);
@@ -1722,15 +1731,30 @@ static void wt_shortstatus_status(struct
string_list_item *it,
else
putchar(' ');
putchar(' ');
+
+ if (d->head_path && d->worktree_path)
+ die("BUG: to be addressed in the next patch");
+
+ if (d->head_path) {
+ from = d->head_path;
+ to = it->string;
+ } else if (d->worktree_path) {
+ from = it->string;
+ to = d->worktree_path;
+ } else {
+ from = it->string;
+ to = NULL;
+ }
if (s->null_termination) {
- fprintf(stdout, "%s%c", it->string, 0);
- if (d->head_path)
- fprintf(stdout, "%s%c", d->head_path, 0);
+ fprintf(stdout, "%s%c", from, 0);
+ if (to)
+ fprintf(stdout, "%s%c", to, 0);
} else {
struct strbuf onebuf = STRBUF_INIT;
const char *one;
- if (d->head_path) {
- one = quote_path(d->head_path, s->prefix, &onebuf);
+
+ if (to) {
+ one = quote_path(from, s->prefix, &onebuf);
if (*one != '"' && strchr(one, ' ') != NULL) {
putchar('"');
strbuf_addch(&onebuf, '"');
@@ -1738,8 +1762,9 @@ static void wt_shortstatus_status(struct string_list_item
*it,
}
printf("%s -> ", one);
strbuf_release(&onebuf);
- }
- one = quote_path(it->string, s->prefix, &onebuf);
+ one = quote_path(to, s->prefix, &onebuf);
+ } else
+ one = quote_path(from, s->prefix, &onebuf);
if (*one != '"' && strchr(one, ' ') != NULL) {
putchar('"');
strbuf_addch(&onebuf, '"');
@@ -2036,12 +2061,13 @@ static void wt_porcelain_v2_print_changed_entry(
{
struct wt_status_change_data *d = it->util;
struct strbuf buf_index = STRBUF_INIT;
- struct strbuf buf_head = STRBUF_INIT;
+ struct strbuf buf_other = STRBUF_INIT;
const char *path_index = NULL;
- const char *path_head = NULL;
- char key[3];
+ const char *path_other = NULL;
+ char key[3], status_other;
char submodule_token[5];
char sep_char, eol_char;
+ int score;
wt_porcelain_v2_fix_up_changed(it, s);
wt_porcelain_v2_submodule_state(d, submodule_token);
@@ -2050,6 +2076,19 @@ static void wt_porcelain_v2_print_changed_entry(
key[1] = d->worktree_status ? d->worktree_status : '.';
key[2] = 0;
+ if (d->head_path && d->worktree_path)
+ die("BUG: to be addressed in the next patch");
+
+ if (d->head_path) {
+ path_other = d->head_path;
+ status_other = d->index_status;
+ score = d->head_score;
+ } else if (d->worktree_path) {
+ path_other = d->worktree_path;
+ status_other = d->worktree_status;
+ score = d->worktree_score;
+ }
+
if (s->null_termination) {
/*
* In -z mode, we DO NOT C-quote pathnames. Current path is
ALWAYS first.
@@ -2058,7 +2097,6 @@ static void wt_porcelain_v2_print_changed_entry(
sep_char = '\0';
eol_char = '\0';
path_index = it->string;
- path_head = d->head_path;
} else {
/*
* Path(s) are C-quoted if necessary. Current path is ALWAYS
first.
@@ -2069,17 +2107,17 @@ static void wt_porcelain_v2_print_changed_entry(
sep_char = '\t';
eol_char = '\n';
path_index = quote_path(it->string, s->prefix, &buf_index);
- if (d->head_path)
- path_head = quote_path(d->head_path, s->prefix,
&buf_head);
+ if (path_other)
+ path_other = quote_path(path_other, s->prefix,
&buf_other);
}
- if (path_head)
+ if (path_other)
fprintf(s->fp, "2 %s %s %06o %06o %06o %s %s %c%d %s%c%s%c",
key, submodule_token,
d->mode_head, d->mode_index, d->mode_worktree,
oid_to_hex(&d->oid_head),
oid_to_hex(&d->oid_index),
- key[0], d->head_score,
- path_index, sep_char, path_head, eol_char);
+ status_other, score,
+ path_index, sep_char, path_other, eol_char);
else
fprintf(s->fp, "1 %s %s %06o %06o %06o %s %s %s%c",
key, submodule_token,
@@ -2088,7 +2126,7 @@ static void wt_porcelain_v2_print_changed_entry(
path_index, eol_char);
strbuf_release(&buf_index);
- strbuf_release(&buf_head);
+ strbuf_release(&buf_other);
}
/*
diff --git a/wt-status.h b/wt-status.h
index f9330982ac..332ff545aa 100644
--- a/wt-status.h
+++ b/wt-status.h
@@ -44,10 +44,10 @@ struct wt_status_change_data {
int worktree_status;
int index_status;
int stagemask;
- int head_score;
+ int head_score, worktree_score;
int mode_head, mode_index, mode_worktree;
struct object_id oid_head, oid_index;
- char *head_path;
+ char *head_path, *worktree_path;
unsigned dirty_submodule : 2;
unsigned new_submodule_commits : 1;
};
--
2.15.0.320.g0453912d77
