Merge branch 'ts/checkout-advice-plural'
[gitweb.git] / builtin / update-ref.c
index 3067b11310fb01e9e05a1988898566f211601e07..3d79a46b036fa7bea29bbc0941442b5dd92f648c 100644 (file)
@@ -6,17 +6,15 @@
 #include "argv-array.h"
 
 static const char * const git_update_ref_usage[] = {
-       N_("git update-ref [options] -d <refname> [<oldval>]"),
-       N_("git update-ref [options]    <refname> <newval> [<oldval>]"),
-       N_("git update-ref [options] --stdin [-z]"),
+       N_("git update-ref [<options>] -d <refname> [<old-val>]"),
+       N_("git update-ref [<options>]    <refname> <new-val> [<old-val>]"),
+       N_("git update-ref [<options>] --stdin [-z]"),
        NULL
 };
 
-static struct ref_transaction *transaction;
-
 static char line_termination = '\n';
 static int update_flags;
-static struct strbuf err = STRBUF_INIT;
+static const char *msg;
 
 /*
  * Parse one whitespace- or NUL-terminated, possibly C-quoted argument
@@ -177,8 +175,10 @@ static int parse_next_sha1(struct strbuf *input, const char **next,
  * depending on how line_termination is set.
  */
 
-static const char *parse_cmd_update(struct strbuf *input, const char *next)
+static const char *parse_cmd_update(struct ref_transaction *transaction,
+                                   struct strbuf *input, const char *next)
 {
+       struct strbuf err = STRBUF_INIT;
        char *refname;
        unsigned char new_sha1[20];
        unsigned char old_sha1[20];
@@ -198,18 +198,22 @@ static const char *parse_cmd_update(struct strbuf *input, const char *next)
        if (*next != line_termination)
                die("update %s: extra input: %s", refname, next);
 
-       if (ref_transaction_update(transaction, refname, new_sha1, old_sha1,
-                                  update_flags, have_old, &err))
+       if (ref_transaction_update(transaction, refname,
+                                  new_sha1, have_old ? old_sha1 : NULL,
+                                  update_flags, msg, &err))
                die("%s", err.buf);
 
        update_flags = 0;
        free(refname);
+       strbuf_release(&err);
 
        return next;
 }
 
-static const char *parse_cmd_create(struct strbuf *input, const char *next)
+static const char *parse_cmd_create(struct ref_transaction *transaction,
+                                   struct strbuf *input, const char *next)
 {
+       struct strbuf err = STRBUF_INIT;
        char *refname;
        unsigned char new_sha1[20];
 
@@ -226,16 +230,21 @@ 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, msg, &err))
+               die("%s", err.buf);
 
        update_flags = 0;
        free(refname);
+       strbuf_release(&err);
 
        return next;
 }
 
-static const char *parse_cmd_delete(struct strbuf *input, const char *next)
+static const char *parse_cmd_delete(struct ref_transaction *transaction,
+                                   struct strbuf *input, const char *next)
 {
+       struct strbuf err = STRBUF_INIT;
        char *refname;
        unsigned char old_sha1[20];
        int have_old;
@@ -256,44 +265,43 @@ static const char *parse_cmd_delete(struct strbuf *input, const char *next)
        if (*next != line_termination)
                die("delete %s: extra input: %s", refname, next);
 
-       ref_transaction_delete(transaction, refname, old_sha1,
-                              update_flags, have_old);
+       if (ref_transaction_delete(transaction, refname,
+                                  have_old ? old_sha1 : NULL,
+                                  update_flags, msg, &err))
+               die("%s", err.buf);
 
        update_flags = 0;
        free(refname);
+       strbuf_release(&err);
 
        return next;
 }
 
-static const char *parse_cmd_verify(struct strbuf *input, const char *next)
+static const char *parse_cmd_verify(struct ref_transaction *transaction,
+                                   struct strbuf *input, const char *next)
 {
+       struct strbuf err = STRBUF_INIT;
        char *refname;
-       unsigned char new_sha1[20];
        unsigned char old_sha1[20];
-       int have_old;
 
        refname = parse_refname(input, &next);
        if (!refname)
                die("verify: missing <ref>");
 
        if (parse_next_sha1(input, &next, old_sha1, "verify", refname,
-                           PARSE_SHA1_OLD)) {
-               hashclr(new_sha1);
-               have_old = 0;
-       } else {
-               hashcpy(new_sha1, old_sha1);
-               have_old = 1;
-       }
+                           PARSE_SHA1_OLD))
+               hashclr(old_sha1);
 
        if (*next != line_termination)
                die("verify %s: extra input: %s", refname, next);
 
-       if (ref_transaction_update(transaction, refname, new_sha1, old_sha1,
-                                  update_flags, have_old, &err))
+       if (ref_transaction_verify(transaction, refname, old_sha1,
+                                  update_flags, &err))
                die("%s", err.buf);
 
        update_flags = 0;
        free(refname);
+       strbuf_release(&err);
 
        return next;
 }
@@ -307,7 +315,7 @@ static const char *parse_cmd_option(struct strbuf *input, const char *next)
        return next + 8;
 }
 
-static void update_refs_stdin(void)
+static void update_refs_stdin(struct ref_transaction *transaction)
 {
        struct strbuf input = STRBUF_INIT;
        const char *next;
@@ -322,13 +330,13 @@ static void update_refs_stdin(void)
                else if (isspace(*next))
                        die("whitespace before command: %s", next);
                else if (starts_with(next, "update "))
-                       next = parse_cmd_update(&input, next + 7);
+                       next = parse_cmd_update(transaction, &input, next + 7);
                else if (starts_with(next, "create "))
-                       next = parse_cmd_create(&input, next + 7);
+                       next = parse_cmd_create(transaction, &input, next + 7);
                else if (starts_with(next, "delete "))
-                       next = parse_cmd_delete(&input, next + 7);
+                       next = parse_cmd_delete(transaction, &input, next + 7);
                else if (starts_with(next, "verify "))
-                       next = parse_cmd_verify(&input, next + 7);
+                       next = parse_cmd_verify(transaction, &input, next + 7);
                else if (starts_with(next, "option "))
                        next = parse_cmd_option(&input, next + 7);
                else
@@ -342,9 +350,10 @@ static void update_refs_stdin(void)
 
 int cmd_update_ref(int argc, const char **argv, const char *prefix)
 {
-       const char *refname, *oldval, *msg = NULL;
+       const char *refname, *oldval;
        unsigned char sha1[20], oldsha1[20];
-       int delete = 0, no_deref = 0, read_stdin = 0, end_null = 0, flags = 0;
+       int delete = 0, no_deref = 0, read_stdin = 0, end_null = 0;
+       unsigned int flags = 0;
        struct option options[] = {
                OPT_STRING( 'm', NULL, &msg, N_("reason"), N_("reason of the update")),
                OPT_BOOL('d', NULL, &delete, N_("delete the reference")),
@@ -362,15 +371,21 @@ int cmd_update_ref(int argc, const char **argv, const char *prefix)
                die("Refusing to perform update with empty message.");
 
        if (read_stdin) {
-               transaction = ref_transaction_begin();
+               struct strbuf err = STRBUF_INIT;
+               struct ref_transaction *transaction;
+
+               transaction = ref_transaction_begin(&err);
+               if (!transaction)
+                       die("%s", err.buf);
                if (delete || no_deref || argc > 0)
                        usage_with_options(git_update_ref_usage, options);
                if (end_null)
                        line_termination = '\0';
-               update_refs_stdin();
-               if (ref_transaction_commit(transaction, msg, &err))
+               update_refs_stdin(transaction);
+               if (ref_transaction_commit(transaction, &err))
                        die("%s", err.buf);
                ref_transaction_free(transaction);
+               strbuf_release(&err);
                return 0;
        }