On 04/17/2014 09:46 PM, Ronnie Sahlberg wrote:
> Do basic error checking in ref_transaction_create() and make it return
> status. Update all callers to check the result of ref_transaction_create()
>
> Signed-off-by: Ronnie Sahlberg <sahlb...@google.com>
> ---
> builtin/update-ref.c | 4 +++-
> refs.c | 17 +++++++++++------
> refs.h | 8 ++++----
> 3 files changed, 18 insertions(+), 11 deletions(-)
>
> diff --git a/builtin/update-ref.c b/builtin/update-ref.c
> index 12bfacc..1b8a087 100644
> --- a/builtin/update-ref.c
> +++ b/builtin/update-ref.c
> @@ -226,7 +226,9 @@ static const char *parse_cmd_create(struct strbuf *input,
> const char *next)
> if (*next != line_termination)
> die("create %s: extra input: %s", refname, next);
>
> - ref_transaction_create(transaction, refname, new_sha1, update_flags);
> + if(ref_transaction_create(transaction, refname, new_sha1,
> + update_flags))
Space between "if" and opening parenthesis.
> + die("failed transaction create for %s", refname);
>
> update_flags = 0;
> free(refname);
> diff --git a/refs.c b/refs.c
> index da1761d..c46249f 100644
> --- a/refs.c
> +++ b/refs.c
> @@ -3347,18 +3347,23 @@ int ref_transaction_update(struct ref_transaction
> *transaction,
> return 0;
> }
>
> -void ref_transaction_create(struct ref_transaction *transaction,
> - const char *refname,
> - const unsigned char *new_sha1,
> - int flags)
> +int ref_transaction_create(struct ref_transaction *transaction,
> + const char *refname,
> + const unsigned char *new_sha1,
> + int flags)
> {
> - struct ref_update *update = add_update(transaction, refname);
> + struct ref_update *update;
> +
> + if (!new_sha1 || is_null_sha1(new_sha1))
> + return error("create ref with null new_sha1");
Please die("BUG: ...").
> +
> + update = add_update(transaction, refname);
>
> - assert(!is_null_sha1(new_sha1));
> hashcpy(update->new_sha1, new_sha1);
> hashclr(update->old_sha1);
> update->flags = flags;
> update->have_old = 1;
> + return 0;
> }
>
> void ref_transaction_delete(struct ref_transaction *transaction,
> diff --git a/refs.h b/refs.h
> index 00e4f7b..8799e15 100644
> --- a/refs.h
> +++ b/refs.h
> @@ -249,10 +249,10 @@ int ref_transaction_update(struct ref_transaction
> *transaction,
> * null SHA-1. It is verified that the reference does not exist
> * already.
> */
> -void ref_transaction_create(struct ref_transaction *transaction,
> - const char *refname,
> - const unsigned char *new_sha1,
> - int flags);
> +int ref_transaction_create(struct ref_transaction *transaction,
> + const char *refname,
> + const unsigned char *new_sha1,
> + int flags);
>
> /*
> * Add a reference deletion to transaction. If have_old is true, then
>
Michael
--
Michael Haggerty
mhag...@alum.mit.edu
http://softwareswirl.blogspot.com/
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