Making the strbuf local in each function that needs to print errors
saves the reader from having to think about action at a distance,
such as
* errors piling up and being concatenated with no newline between
them
* errors unhandled in one function, to be later handled in another
* concurrency issues, if this code starts using threads some day
No functional change intended.
Signed-off-by: Jonathan Nieder <jrnieder@xxxxxxxxx>
Reviewed-by: Michael Haggerty <mhagger@xxxxxxxxxxxx>
---
builtin/update-ref.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/builtin/update-ref.c b/builtin/update-ref.c
index 96a53b9..866bbee 100644
--- a/builtin/update-ref.c
+++ b/builtin/update-ref.c
@@ -16,7 +16,6 @@ static struct ref_transaction *transaction;
static char line_termination = '\n';
static int update_flags;
-static struct strbuf err = STRBUF_INIT;
/*
* Parse one whitespace- or NUL-terminated, possibly C-quoted argument
@@ -179,6 +178,7 @@ static int parse_next_sha1(struct strbuf *input, const char **next,
static const char *parse_cmd_update(struct strbuf *input, const char *next)
{
+ struct strbuf err = STRBUF_INIT;
char *refname;
unsigned char new_sha1[20];
unsigned char old_sha1[20];
@@ -204,12 +204,14 @@ static const char *parse_cmd_update(struct strbuf *input, const char *next)
update_flags = 0;
free(refname);
+ strbuf_release(&err);
return next;
}
static const char *parse_cmd_create(struct strbuf *input, const char *next)
{
+ struct strbuf err = STRBUF_INIT;
char *refname;
unsigned char new_sha1[20];
@@ -232,12 +234,14 @@ static const char *parse_cmd_create(struct strbuf *input, const char *next)
update_flags = 0;
free(refname);
+ strbuf_release(&err);
return next;
}
static const char *parse_cmd_delete(struct strbuf *input, const char *next)
{
+ struct strbuf err = STRBUF_INIT;
char *refname;
unsigned char old_sha1[20];
int have_old;
@@ -264,12 +268,14 @@ static const char *parse_cmd_delete(struct strbuf *input, const char *next)
update_flags = 0;
free(refname);
+ strbuf_release(&err);
return next;
}
static const char *parse_cmd_verify(struct strbuf *input, const char *next)
{
+ struct strbuf err = STRBUF_INIT;
char *refname;
unsigned char new_sha1[20];
unsigned char old_sha1[20];
@@ -297,6 +303,7 @@ static const char *parse_cmd_verify(struct strbuf *input, const char *next)
update_flags = 0;
free(refname);
+ strbuf_release(&err);
return next;
}
@@ -365,6 +372,8 @@ int cmd_update_ref(int argc, const char **argv, const char *prefix)
die("Refusing to perform update with empty message.");
if (read_stdin) {
+ struct strbuf err = STRBUF_INIT;
+
transaction = ref_transaction_begin(&err);
if (!transaction)
die("%s", err.buf);
--
2.1.0.rc2.206.gedb03e5
--
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