From: Michael Haggerty <mhagger@alum.mit.edu>
To: Junio C Hamano <gitster@pobox.com>
Cc: Brad King <brad.king@kitware.com>, Jeff King <peff@peff.net>,
Vicent Marti <tanoku@gmail.com>,
Johan Herland <johan@herland.net>,
git@vger.kernel.org, Michael Haggerty <mhagger@alum.mit.edu>
Subject: [PATCH 18/26] update-ref --stdin: Reimplement using reference transactions
Date: Mon, 10 Mar 2014 13:46:35 +0100 [thread overview]
Message-ID: <1394455603-2968-19-git-send-email-mhagger@alum.mit.edu> (raw)
In-Reply-To: <1394455603-2968-1-git-send-email-mhagger@alum.mit.edu>
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 queue_*_ref() 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>
---
builtin/update-ref.c | 142 +++++++++++++++++++++++++++------------------------
1 file changed, 76 insertions(+), 66 deletions(-)
diff --git a/builtin/update-ref.c b/builtin/update-ref.c
index ac41635..ffed061 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.
@@ -174,95 +156,118 @@ 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, 0))
- die("update %s: missing <newvalue>", update->ref_name);
+ if (parse_next_sha1(input, &next, new_sha1,
+ "update", refname, 0))
+ die("update %s: missing <newvalue>", refname);
- update->have_old = !parse_next_sha1(input, &next, update->old_sha1,
- "update", update->ref_name, 1);
+ have_old = !parse_next_sha1(input, &next, old_sha1,
+ "update", refname, 1);
if (*next != line_termination)
- die("update %s: extra input: %s", update->ref_name, next);
+ die("update %s: extra input: %s", refname, next);
+
+ queue_update_ref(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);
+
+ queue_create_ref(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, 1)) {
- update->have_old = 0;
+ if (parse_next_sha1(input, &next, old_sha1, "delete", refname, 1)) {
+ 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);
+
+ queue_delete_ref(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, 1)) {
- update->have_old = 0;
+ if (parse_next_sha1(input, &next, old_sha1,
+ "verify", refname, 1)) {
+ 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);
+
+ queue_update_ref(transaction, refname, new_sha1, old_sha1,
+ update_flags, have_old);
+
+ update_flags = 0;
+ free(refname);
return next;
}
@@ -331,13 +336,18 @@ 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 = create_ref_transaction();
+
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 = commit_ref_transaction(transaction, msg,
+ UPDATE_REFS_DIE_ON_ERR);
+ free_ref_transaction(transaction);
+ return ret;
}
if (end_null)
--
1.9.0
next prev parent reply other threads:[~2014-03-10 12:47 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-10 12:46 [PATCH 00/26] Clean up update-refs --stdin and implement ref_transaction Michael Haggerty
2014-03-10 12:46 ` [PATCH 01/26] t1400: Fix name and expected result of one test Michael Haggerty
2014-03-10 12:46 ` [PATCH 02/26] t1400: Provide sensible input to the command Michael Haggerty
2014-03-10 12:46 ` [PATCH 03/26] t1400: Pass a legitimate <newvalue> to update command Michael Haggerty
2014-03-10 17:03 ` Brad King
2014-03-10 21:38 ` Michael Haggerty
2014-03-11 12:49 ` Brad King
2014-03-11 20:06 ` Junio C Hamano
2014-03-11 21:41 ` Brad King
2014-03-20 17:01 ` Michael Haggerty
2014-03-10 12:46 ` [PATCH 04/26] parse_arg(): Really test that argument is properly terminated Michael Haggerty
2014-03-10 12:46 ` [PATCH 05/26] t1400: Add some more tests involving quoted arguments Michael Haggerty
2014-03-10 13:53 ` Johan Herland
2014-03-10 12:46 ` [PATCH 06/26] refs.h: Rename the action_on_err constants Michael Haggerty
2014-03-10 12:46 ` [PATCH 07/26] update_refs(): Fix constness Michael Haggerty
2014-03-10 12:46 ` [PATCH 08/26] update-ref --stdin: Read the whole input at once Michael Haggerty
2014-03-10 12:46 ` [PATCH 09/26] parse_cmd_verify(): Copy old_sha1 instead of evaluating <oldvalue> twice Michael Haggerty
2014-03-10 12:46 ` [PATCH 10/26] update-ref.c: Extract a new function, parse_refname() Michael Haggerty
2014-03-10 12:46 ` [PATCH 11/26] update-ref --stdin: Improve error messages for invalid values Michael Haggerty
2014-03-10 12:46 ` [PATCH 12/26] update-ref --stdin: Make error messages more consistent Michael Haggerty
2014-03-10 12:46 ` [PATCH 13/26] update-ref --stdin: Simplify error messages for missing oldvalues Michael Haggerty
2014-03-10 17:08 ` Brad King
2014-03-10 17:12 ` Brad King
2014-03-10 12:46 ` [PATCH 14/26] update-ref.c: Extract a new function, parse_next_sha1() Michael Haggerty
2014-03-10 12:46 ` [PATCH 15/26] update-ref --stdin: Improve the error message for unexpected EOF Michael Haggerty
2014-03-10 12:46 ` [PATCH 16/26] update-ref --stdin: Harmonize error messages Michael Haggerty
2014-03-10 12:46 ` [PATCH 17/26] refs: Add a concept of a reference transaction Michael Haggerty
2014-03-10 12:46 ` Michael Haggerty [this message]
2014-03-10 12:46 ` [PATCH 19/26] refs: Remove API function update_refs() Michael Haggerty
2014-03-10 12:46 ` [PATCH 20/26] struct ref_update: Rename field "ref_name" to "refname" Michael Haggerty
2014-03-10 12:46 ` [PATCH 21/26] struct ref_update: Store refname as a FLEX_ARRAY Michael Haggerty
2014-03-10 12:46 ` [PATCH 22/26] commit_ref_transaction(): Introduce temporary variables Michael Haggerty
2014-03-10 12:46 ` [PATCH 23/26] struct ref_update: Add a lock member Michael Haggerty
2014-03-10 12:46 ` [PATCH 24/26] struct ref_update: Add type field Michael Haggerty
2014-03-10 12:46 ` [PATCH 25/26] commit_ref_transaction(): Also free the ref_transaction Michael Haggerty
2014-03-10 12:46 ` [PATCH 26/26] commit_ref_transaction(): Work with transaction->updates in place Michael Haggerty
2014-03-10 17:44 ` [PATCH 00/26] Clean up update-refs --stdin and implement ref_transaction Brad King
2014-03-10 21:46 ` Michael Haggerty
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