After using "git checkout --detach", the reflog is left with an entry
like
checkout: moving from ... to HEAD
This message is parsed to generate the 'HEAD detached at' message in
'git branch' and 'git status', which leads to the not-so-useful message
'HEAD detached at HEAD'.
Instead, when parsing such reflog entry, resolve HEAD to the
corresponding commit in the reflog, so that the message becomes 'HEAD
detached at $sha1'.
---
Another possible fix is to avoid creating such reflog entry. But
anyway, this patch remains a good thing to do and it does fix the
issue.
I won't have time to work on fixing the reflog soon, but it may be a
nice microproject.
t/t3203-branch-output.sh | 2 +-
wt-status.c | 6 ++++++
2 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/t/t3203-branch-output.sh b/t/t3203-branch-output.sh
index bf24dbf..16efe7a 100755
--- a/t/t3203-branch-output.sh
+++ b/t/t3203-branch-output.sh
@@ -106,7 +106,7 @@ EOF
test_i18ncmp expect actual
'
-test_expect_failure 'git branch shows detached HEAD properly after checkout
--detach' '
+test_expect_success 'git branch shows detached HEAD properly after checkout
--detach' '
git checkout master &&
cat >expect <<EOF &&
* (HEAD detached at $(git rev-parse --short HEAD^0))
diff --git a/wt-status.c b/wt-status.c
index c327fe8..3e3b8c0 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -1319,6 +1319,12 @@ static int grab_1st_switch(unsigned char *osha1,
unsigned char *nsha1,
hashcpy(cb->nsha1, nsha1);
for (end = target; *end && *end != '\n'; end++)
;
+ if (!memcmp(target, "HEAD", end - target)) {
+ /* HEAD is relative. Resolve it to the right reflog entry. */
+ strbuf_addstr(&cb->buf,
+ find_unique_abbrev(nsha1, DEFAULT_ABBREV));
+ return 1;
+ }
strbuf_add(&cb->buf, target, end - target);
return 1;
}
--
2.5.0.402.g8854c44
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