Ramkumar Ramachandra <[email protected]> writes:
> GIT_REFLOG_ACTION is an environment variable specifying the reflog
> message to write after an action is completed. Other commands including
> merge, reset, and commit respect it.
>
> This incidentally fixes a bug in t/checkout-last. You can now expect
>
> $ git checkout -
>
> to work fine after an interactive rebase.
>
> Signed-off-by: Ramkumar Ramachandra <[email protected]>
> ---
> builtin/checkout.c | 11 ++++++++---
> t/t2012-checkout-last.sh | 2 +-
> 2 files changed, 9 insertions(+), 4 deletions(-)
>
> diff --git a/builtin/checkout.c b/builtin/checkout.c
> index f5b50e5..1e2af85 100644
> --- a/builtin/checkout.c
> +++ b/builtin/checkout.c
> @@ -587,7 +587,7 @@ static void update_refs_for_switch(const struct
> checkout_opts *opts,
> struct branch_info *new)
> {
> struct strbuf msg = STRBUF_INIT;
> - const char *old_desc;
> + const char *old_desc, *reflog_msg;
> if (opts->new_branch) {
> if (opts->new_orphan_branch) {
> if (opts->new_branch_log && !log_all_ref_updates) {
> @@ -620,8 +620,13 @@ static void update_refs_for_switch(const struct
> checkout_opts *opts,
> old_desc = old->name;
> if (!old_desc && old->commit)
> old_desc = sha1_to_hex(old->commit->object.sha1);
> - strbuf_addf(&msg, "checkout: moving from %s to %s",
> - old_desc ? old_desc : "(invalid)", new->name);
> +
> + reflog_msg = getenv("GIT_REFLOG_ACTION");
> + if (!reflog_msg)
> + strbuf_addf(&msg, "checkout: moving from %s to %s",
> + old_desc ? old_desc : "(invalid)", new->name);
> + else
> + strbuf_insert(&msg, 0, reflog_msg, strlen(reflog_msg));
Looks very sensible; we may need to audit programs that set and
export REFLOG_ACTION to make sure they do not do so incorrectly,
which wouldn't have mattered if they called "checkout" but now it
would with this fix, though.
> if (!strcmp(new->name, "HEAD") && !new->path && !opts->force_detach) {
> /* Nothing to do. */
> diff --git a/t/t2012-checkout-last.sh b/t/t2012-checkout-last.sh
> index 5729487..ab80da7 100755
> --- a/t/t2012-checkout-last.sh
> +++ b/t/t2012-checkout-last.sh
> @@ -116,7 +116,7 @@ test_expect_success 'master...' '
> test "z$(git rev-parse --verify HEAD)" = "z$(git rev-parse --verify
> master^)"
> '
>
> -test_expect_failure '"checkout -" works after an interactive rebase' '
> +test_expect_success '"checkout -" works after an interactive rebase' '
> git checkout master &&
> git checkout other &&
> git rebase -i master &&
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