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authorMichael Haggerty <mhagger@alum.mit.edu>2014-04-07 13:48:11 (GMT)
committerJunio C Hamano <gitster@pobox.com>2014-04-07 19:09:14 (GMT)
commitaebfc13337e503b5a7d064cb1e9c9916f24c2baf (patch)
tree35d7f2a52ee545e1bec90f22f99167e5dff496fa /builtin/update-ref.c
parentcaa4046c4f480ceae5afb20e3172a437865cc51f (diff)
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update-ref --stdin: reimplement using reference transactions
This change is mostly clerical: the parse_cmd_*() functions need to use local variables rather than a struct ref_update to collect the arguments needed for each update, and then call ref_transaction_*() to queue the change rather than building up the list of changes at the caller side. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin/update-ref.c')
-rw-r--r--builtin/update-ref.c142
1 files changed, 75 insertions, 67 deletions
diff --git a/builtin/update-ref.c b/builtin/update-ref.c
index 423c5c3..405267f 100644
--- a/builtin/update-ref.c
+++ b/builtin/update-ref.c
@@ -12,29 +12,11 @@ static const char * const git_update_ref_usage[] = {
NULL
};
-static int updates_alloc;
-static int updates_count;
-static struct ref_update **updates;
+static struct ref_transaction *transaction;
static char line_termination = '\n';
static int update_flags;
-static struct ref_update *update_alloc(void)
-{
- struct ref_update *update;
-
- /* Allocate and zero-init a struct ref_update */
- update = xcalloc(1, sizeof(*update));
- ALLOC_GROW(updates, updates_count + 1, updates_alloc);
- updates[updates_count++] = update;
-
- /* Store and reset accumulated options */
- update->flags = update_flags;
- update_flags = 0;
-
- return update;
-}
-
/*
* Parse one whitespace- or NUL-terminated, possibly C-quoted argument
* and append the result to arg. Return a pointer to the terminator.
@@ -196,97 +178,119 @@ static int parse_next_sha1(struct strbuf *input, const char **next,
static const char *parse_cmd_update(struct strbuf *input, const char *next)
{
- struct ref_update *update;
-
- update = update_alloc();
+ char *refname;
+ unsigned char new_sha1[20];
+ unsigned char old_sha1[20];
+ int have_old;
- update->ref_name = parse_refname(input, &next);
- if (!update->ref_name)
+ refname = parse_refname(input, &next);
+ if (!refname)
die("update: missing <ref>");
- if (parse_next_sha1(input, &next, update->new_sha1,
- "update", update->ref_name,
+ if (parse_next_sha1(input, &next, new_sha1, "update", refname,
PARSE_SHA1_ALLOW_EMPTY))
- die("update %s: missing <newvalue>", update->ref_name);
+ die("update %s: missing <newvalue>", refname);
- update->have_old = !parse_next_sha1(input, &next, update->old_sha1,
- "update", update->ref_name,
- PARSE_SHA1_OLD);
+ have_old = !parse_next_sha1(input, &next, old_sha1, "update", refname,
+ PARSE_SHA1_OLD);
if (*next != line_termination)
- die("update %s: extra input: %s", update->ref_name, next);
+ die("update %s: extra input: %s", refname, next);
+
+ ref_transaction_update(transaction, refname, new_sha1, old_sha1,
+ update_flags, have_old);
+
+ update_flags = 0;
+ free(refname);
return next;
}
static const char *parse_cmd_create(struct strbuf *input, const char *next)
{
- struct ref_update *update;
-
- update = update_alloc();
+ char *refname;
+ unsigned char new_sha1[20];
- update->ref_name = parse_refname(input, &next);
- if (!update->ref_name)
+ refname = parse_refname(input, &next);
+ if (!refname)
die("create: missing <ref>");
- if (parse_next_sha1(input, &next, update->new_sha1,
- "create", update->ref_name, 0))
- die("create %s: missing <newvalue>", update->ref_name);
+ if (parse_next_sha1(input, &next, new_sha1, "create", refname, 0))
+ die("create %s: missing <newvalue>", refname);
- if (is_null_sha1(update->new_sha1))
- die("create %s: zero <newvalue>", update->ref_name);
+ if (is_null_sha1(new_sha1))
+ die("create %s: zero <newvalue>", refname);
if (*next != line_termination)
- die("create %s: extra input: %s", update->ref_name, next);
+ die("create %s: extra input: %s", refname, next);
+
+ ref_transaction_create(transaction, refname, new_sha1, update_flags);
+
+ update_flags = 0;
+ free(refname);
return next;
}
static const char *parse_cmd_delete(struct strbuf *input, const char *next)
{
- struct ref_update *update;
+ char *refname;
+ unsigned char old_sha1[20];
+ int have_old;
- update = update_alloc();
-
- update->ref_name = parse_refname(input, &next);
- if (!update->ref_name)
+ refname = parse_refname(input, &next);
+ if (!refname)
die("delete: missing <ref>");
- if (parse_next_sha1(input, &next, update->old_sha1,
- "delete", update->ref_name, PARSE_SHA1_OLD)) {
- update->have_old = 0;
+ if (parse_next_sha1(input, &next, old_sha1, "delete", refname,
+ PARSE_SHA1_OLD)) {
+ have_old = 0;
} else {
- if (is_null_sha1(update->old_sha1))
- die("delete %s: zero <oldvalue>", update->ref_name);
- update->have_old = 1;
+ if (is_null_sha1(old_sha1))
+ die("delete %s: zero <oldvalue>", refname);
+ have_old = 1;
}
if (*next != line_termination)
- die("delete %s: extra input: %s", update->ref_name, next);
+ die("delete %s: extra input: %s", refname, next);
+
+ ref_transaction_delete(transaction, refname, old_sha1,
+ update_flags, have_old);
+
+ update_flags = 0;
+ free(refname);
return next;
}
static const char *parse_cmd_verify(struct strbuf *input, const char *next)
{
- struct ref_update *update;
-
- update = update_alloc();
+ char *refname;
+ unsigned char new_sha1[20];
+ unsigned char old_sha1[20];
+ int have_old;
- update->ref_name = parse_refname(input, &next);
- if (!update->ref_name)
+ refname = parse_refname(input, &next);
+ if (!refname)
die("verify: missing <ref>");
- if (parse_next_sha1(input, &next, update->old_sha1,
- "verify", update->ref_name, PARSE_SHA1_OLD)) {
- update->have_old = 0;
+ if (parse_next_sha1(input, &next, old_sha1, "verify", refname,
+ PARSE_SHA1_OLD)) {
+ hashclr(new_sha1);
+ have_old = 0;
} else {
- hashcpy(update->new_sha1, update->old_sha1);
- update->have_old = 1;
+ hashcpy(new_sha1, old_sha1);
+ have_old = 1;
}
if (*next != line_termination)
- die("verify %s: extra input: %s", update->ref_name, next);
+ die("verify %s: extra input: %s", refname, next);
+
+ ref_transaction_update(transaction, refname, new_sha1, old_sha1,
+ update_flags, have_old);
+
+ update_flags = 0;
+ free(refname);
return next;
}
@@ -355,13 +359,17 @@ int cmd_update_ref(int argc, const char **argv, const char *prefix)
die("Refusing to perform update with empty message.");
if (read_stdin) {
+ int ret;
+ transaction = ref_transaction_begin();
+
if (delete || no_deref || argc > 0)
usage_with_options(git_update_ref_usage, options);
if (end_null)
line_termination = '\0';
update_refs_stdin();
- return update_refs(msg, updates, updates_count,
- UPDATE_REFS_DIE_ON_ERR);
+ ret = ref_transaction_commit(transaction, msg,
+ UPDATE_REFS_DIE_ON_ERR);
+ return ret;
}
if (end_null)