wrapper.c: add and use fopen_or_warn()

diff --git a/builtin/replace.c b/builtin/replace.c
index f83e7b8fc1758aa837b4dd48708a3d6c31bcd226..ab17668f4330a5e688d423a60c138768b9955e1b 100644 (file)
--- a/builtin/replace.c
+++ b/builtin/replace.c
@@ -93,28 +93,34 @@ typedef int (*each_replace_name_fn)(const char *name, const char *ref,
 static int for_each_replace_name(const char **argv, each_replace_name_fn fn)
 {
        const char **p, *full_hex;
-       char ref[PATH_MAX];
+       struct strbuf ref = STRBUF_INIT;
+       size_t base_len;
        int had_error = 0;
        struct object_id oid;
 
+       strbuf_addstr(&ref, git_replace_ref_base);
+       base_len = ref.len;
+
        for (p = argv; *p; p++) {
                if (get_oid(*p, &oid)) {
                        error("Failed to resolve '%s' as a valid ref.", *p);
                        had_error = 1;
                        continue;
                }
-               full_hex = oid_to_hex(&oid);
-               snprintf(ref, sizeof(ref), "%s%s", git_replace_ref_base, full_hex);
-               /* read_ref() may reuse the buffer */
-               full_hex = ref + strlen(git_replace_ref_base);
-               if (read_ref(ref, oid.hash)) {
+
+               strbuf_setlen(&ref, base_len);
+               strbuf_addstr(&ref, oid_to_hex(&oid));
+               full_hex = ref.buf + base_len;
+
+               if (read_ref(ref.buf, oid.hash)) {
                        error("replace ref '%s' not found.", full_hex);
                        had_error = 1;
                        continue;
                }
-               if (fn(full_hex, ref, &oid))
+               if (fn(full_hex, ref.buf, &oid))
                        had_error = 1;
        }
+       strbuf_release(&ref);
        return had_error;
 }
 
@@ -129,21 +135,18 @@ static int delete_replace_ref(const char *name, const char *ref,
 
 static void check_ref_valid(struct object_id *object,
                            struct object_id *prev,
-                           char *ref,
-                           int ref_size,
+                           struct strbuf *ref,
                            int force)
 {
-       if (snprintf(ref, ref_size,
-                    "%s%s", git_replace_ref_base,
-                    oid_to_hex(object)) > ref_size - 1)
-               die("replace ref name too long: %.*s...", 50, ref);
-       if (check_refname_format(ref, 0))
-               die("'%s' is not a valid ref name.", ref);
-
-       if (read_ref(ref, prev->hash))
+       strbuf_reset(ref);
+       strbuf_addf(ref, "%s%s", git_replace_ref_base, oid_to_hex(object));
+       if (check_refname_format(ref->buf, 0))
+               die("'%s' is not a valid ref name.", ref->buf);
+
+       if (read_ref(ref->buf, prev->hash))
                oidclr(prev);
        else if (!force)
-               die("replace ref '%s' already exists", ref);
+               die("replace ref '%s' already exists", ref->buf);
 }
 
 static int replace_object_oid(const char *object_ref,
@@ -154,7 +157,7 @@ static int replace_object_oid(const char *object_ref,
 {
        struct object_id prev;
        enum object_type obj_type, repl_type;
-       char ref[PATH_MAX];
+       struct strbuf ref = STRBUF_INIT;
        struct ref_transaction *transaction;
        struct strbuf err = STRBUF_INIT;
 
@@ -167,16 +170,17 @@ static int replace_object_oid(const char *object_ref,
                    object_ref, typename(obj_type),
                    replace_ref, typename(repl_type));
 
-       check_ref_valid(object, &prev, ref, sizeof(ref), force);
+       check_ref_valid(object, &prev, &ref, force);
 
        transaction = ref_transaction_begin(&err);
        if (!transaction ||
-           ref_transaction_update(transaction, ref, repl->hash, prev.hash,
+           ref_transaction_update(transaction, ref.buf, repl->hash, prev.hash,
                                   0, NULL, &err) ||
            ref_transaction_commit(transaction, &err))
                die("%s", err.buf);
 
        ref_transaction_free(transaction);
+       strbuf_release(&ref);
        return 0;
 }
 
@@ -280,7 +284,7 @@ static int edit_and_replace(const char *object_ref, int force, int raw)
        char *tmpfile = git_pathdup("REPLACE_EDITOBJ");
        enum object_type type;
        struct object_id old, new, prev;
-       char ref[PATH_MAX];
+       struct strbuf ref = STRBUF_INIT;
 
        if (get_oid(object_ref, &old) < 0)
                die("Not a valid object name: '%s'", object_ref);
@@ -289,7 +293,8 @@ static int edit_and_replace(const char *object_ref, int force, int raw)
        if (type < 0)
                die("unable to get object type for %s", oid_to_hex(&old));
 
-       check_ref_valid(&old, &prev, ref, sizeof(ref), force);
+       check_ref_valid(&old, &prev, &ref, force);
+       strbuf_release(&ref);
 
        export_object(&old, type, raw, tmpfile);
        if (launch_editor(tmpfile, NULL, NULL) < 0)