Convert several unsigned char arrays to use struct object_id instead,
and change hard-coded 40-based constants to use GIT_SHA1_HEXSZ as well.

Signed-off-by: brian m. carlson <sand...@crustytoothpaste.net>
---
 remote.c | 64 ++++++++++++++++++++++++++++++++--------------------------------
 1 file changed, 32 insertions(+), 32 deletions(-)

diff --git a/remote.c b/remote.c
index c72d7966..92dc8d69 100644
--- a/remote.c
+++ b/remote.c
@@ -492,7 +492,7 @@ static void alias_all_urls(void)
 static void read_config(void)
 {
        static int loaded;
-       unsigned char sha1[20];
+       struct object_id oid;
        const char *head_ref;
        int flag;
 
@@ -501,7 +501,7 @@ static void read_config(void)
        loaded = 1;
 
        current_branch = NULL;
-       head_ref = resolve_ref_unsafe("HEAD", 0, sha1, &flag);
+       head_ref = resolve_ref_unsafe("HEAD", 0, oid.hash, &flag);
        if (head_ref && (flag & REF_ISSYMREF) &&
            skip_prefix(head_ref, "refs/heads/", &head_ref)) {
                current_branch = make_branch(head_ref, 0);
@@ -580,12 +580,12 @@ static struct refspec *parse_refspec_internal(int 
nr_refspec, const char **refsp
                flags = REFNAME_ALLOW_ONELEVEL | (is_glob ? 
REFNAME_REFSPEC_PATTERN : 0);
 
                if (fetch) {
-                       unsigned char unused[40];
+                       struct object_id unused;
 
                        /* LHS */
                        if (!*rs[i].src)
                                ; /* empty is ok; it means "HEAD" */
-                       else if (llen == 40 && !get_sha1_hex(rs[i].src, unused))
+                       else if (llen == GIT_SHA1_HEXSZ && 
!get_oid_hex(rs[i].src, &unused))
                                rs[i].exact_sha1 = 1; /* ok */
                        else if (!check_refname_format(rs[i].src, flags))
                                ; /* valid looking ref is ok */
@@ -1118,7 +1118,7 @@ static struct ref *alloc_delete_ref(void)
 static int try_explicit_object_name(const char *name,
                                    struct ref **match)
 {
-       unsigned char sha1[20];
+       struct object_id oid;
 
        if (!*name) {
                if (match)
@@ -1126,12 +1126,12 @@ static int try_explicit_object_name(const char *name,
                return 0;
        }
 
-       if (get_sha1(name, sha1))
+       if (get_sha1(name, oid.hash))
                return -1;
 
        if (match) {
                *match = alloc_ref(name);
-               hashcpy((*match)->new_oid.hash, sha1);
+               oidcpy(&(*match)->new_oid, &oid);
        }
        return 0;
 }
@@ -1146,10 +1146,10 @@ static struct ref *make_linked_ref(const char *name, 
struct ref ***tail)
 static char *guess_ref(const char *name, struct ref *peer)
 {
        struct strbuf buf = STRBUF_INIT;
-       unsigned char sha1[20];
+       struct object_id oid;
 
        const char *r = resolve_ref_unsafe(peer->name, RESOLVE_REF_READING,
-                                          sha1, NULL);
+                                          oid.hash, NULL);
        if (!r)
                return NULL;
 
@@ -1207,12 +1207,12 @@ static int match_explicit(struct ref *src, struct ref 
*dst,
                return -1;
 
        if (!dst_value) {
-               unsigned char sha1[20];
+               struct object_id oid;
                int flag;
 
                dst_value = resolve_ref_unsafe(matched_src->name,
                                               RESOLVE_REF_READING,
-                                              sha1, &flag);
+                                              oid.hash, &flag);
                if (!dst_value ||
                    ((flag & REF_ISSYMREF) &&
                     !starts_with(dst_value, "refs/heads/")))
@@ -1328,13 +1328,13 @@ struct tips {
        int nr, alloc;
 };
 
-static void add_to_tips(struct tips *tips, const unsigned char *sha1)
+static void add_to_tips(struct tips *tips, const struct object_id *oid)
 {
        struct commit *commit;
 
-       if (is_null_sha1(sha1))
+       if (is_null_oid(oid))
                return;
-       commit = lookup_commit_reference_gently(sha1, 1);
+       commit = lookup_commit_reference_gently(oid->hash, 1);
        if (!commit || (commit->object.flags & TMP_MARK))
                return;
        commit->object.flags |= TMP_MARK;
@@ -1358,9 +1358,9 @@ static void add_missing_tags(struct ref *src, struct ref 
**dst, struct ref ***ds
        for (ref = *dst; ref; ref = ref->next) {
                if (ref->peer_ref &&
                    !is_null_oid(&ref->peer_ref->new_oid))
-                       add_to_tips(&sent_tips, ref->peer_ref->new_oid.hash);
+                       add_to_tips(&sent_tips, &ref->peer_ref->new_oid);
                else
-                       add_to_tips(&sent_tips, ref->old_oid.hash);
+                       add_to_tips(&sent_tips, &ref->old_oid);
                if (starts_with(ref->name, "refs/tags/"))
                        string_list_append(&dst_tag, ref->name);
        }
@@ -1645,7 +1645,7 @@ static void set_merge(struct branch *ret)
 {
        struct remote *remote;
        char *ref;
-       unsigned char sha1[20];
+       struct object_id oid;
        int i;
 
        if (!ret)
@@ -1671,7 +1671,7 @@ static void set_merge(struct branch *ret)
                    strcmp(ret->remote_name, "."))
                        continue;
                if (dwim_ref(ret->merge_name[i], strlen(ret->merge_name[i]),
-                            sha1, &ref) == 1)
+                            oid.hash, &ref) == 1)
                        ret->merge[i]->dst = ref;
                else
                        ret->merge[i]->dst = xstrdup(ret->merge_name[i]);
@@ -1831,10 +1831,10 @@ const char *branch_get_push(struct branch *branch, 
struct strbuf *err)
 
 static int ignore_symref_update(const char *refname)
 {
-       unsigned char sha1[20];
+       struct object_id oid;
        int flag;
 
-       if (!resolve_ref_unsafe(refname, 0, sha1, &flag))
+       if (!resolve_ref_unsafe(refname, 0, oid.hash, &flag))
                return 0; /* non-existing refs are OK */
        return (flag & REF_ISSYMREF);
 }
@@ -2033,9 +2033,9 @@ int ref_newer(const struct object_id *new_oid, const 
struct object_id *old_oid)
 int stat_tracking_info(struct branch *branch, int *num_ours, int *num_theirs,
                       const char **upstream_name)
 {
-       unsigned char sha1[20];
+       struct object_id oid;
        struct commit *ours, *theirs;
-       char symmetric[84];
+       char symmetric[GIT_SHA1_HEXSZ * 2 + 4];
        struct rev_info revs;
        const char *rev_argv[10], *base;
        int rev_argc;
@@ -2048,15 +2048,15 @@ int stat_tracking_info(struct branch *branch, int 
*num_ours, int *num_theirs,
                return -1;
 
        /* Cannot stat if what we used to build on no longer exists */
-       if (read_ref(base, sha1))
+       if (read_ref(base, oid.hash))
                return -1;
-       theirs = lookup_commit_reference(sha1);
+       theirs = lookup_commit_reference(oid.hash);
        if (!theirs)
                return -1;
 
-       if (read_ref(branch->refname, sha1))
+       if (read_ref(branch->refname, oid.hash))
                return -1;
-       ours = lookup_commit_reference(sha1);
+       ours = lookup_commit_reference(oid.hash);
        if (!ours)
                return -1;
 
@@ -2075,8 +2075,8 @@ int stat_tracking_info(struct branch *branch, int 
*num_ours, int *num_theirs,
        rev_argv[rev_argc] = NULL;
 
        strcpy(symmetric, oid_to_hex(&ours->object.oid));
-       strcpy(symmetric + 40, "...");
-       strcpy(symmetric + 43, oid_to_hex(&theirs->object.oid));
+       strcpy(symmetric + GIT_SHA1_HEXSZ, "...");
+       strcpy(symmetric + GIT_SHA1_HEXSZ + 3, oid_to_hex(&theirs->object.oid));
 
        init_revisions(&revs, NULL);
        setup_revisions(rev_argc, rev_argv, &revs, NULL);
@@ -2369,14 +2369,14 @@ int is_empty_cas(const struct push_cas_option *cas)
  * If we cannot do so, return negative to signal an error.
  */
 static int remote_tracking(struct remote *remote, const char *refname,
-                          unsigned char sha1[20])
+                          struct object_id *oid)
 {
        char *dst;
 
        dst = apply_refspecs(remote->fetch, remote->fetch_refspec_nr, refname);
        if (!dst)
                return -1; /* no tracking ref for refname at remote */
-       if (read_ref(dst, sha1))
+       if (read_ref(dst, oid->hash))
                return -1; /* we know what the tracking ref is but we cannot 
read it */
        return 0;
 }
@@ -2395,7 +2395,7 @@ static void apply_cas(struct push_cas_option *cas,
                ref->expect_old_sha1 = 1;
                if (!entry->use_tracking)
                        hashcpy(ref->old_oid_expect.hash, cas->entry[i].expect);
-               else if (remote_tracking(remote, ref->name, 
ref->old_oid_expect.hash))
+               else if (remote_tracking(remote, ref->name, 
&ref->old_oid_expect))
                        ref->expect_old_no_trackback = 1;
                return;
        }
@@ -2405,7 +2405,7 @@ static void apply_cas(struct push_cas_option *cas,
                return;
 
        ref->expect_old_sha1 = 1;
-       if (remote_tracking(remote, ref->name, ref->old_oid_expect.hash))
+       if (remote_tracking(remote, ref->name, &ref->old_oid_expect))
                ref->expect_old_no_trackback = 1;
 }
 
-- 
2.6.1

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