Re-implement 'git remote update' using 'git fetch'

diff --git a/pack-write.c b/pack-write.c
index e82c02545794fd10d2a81863676005e14069ce21..741efcd93bd2a2c105bfe2d771d32857ce2ae816 100644 (file)
--- a/pack-write.c
+++ b/pack-write.c
@@ -25,7 +25,7 @@ char *write_idx_file(char *index_name, struct pack_idx_entry **objects,
        off_t last_obj_offset = 0;
        uint32_t array[256];
        int i, fd;
-       SHA_CTX ctx;
+       git_SHA_CTX ctx;
        uint32_t index_version;
 
        if (nr_objects) {
@@ -51,7 +51,7 @@ char *write_idx_file(char *index_name, struct pack_idx_entry **objects,
                fd = open(index_name, O_CREAT|O_EXCL|O_WRONLY, 0600);
        }
        if (fd < 0)
-               die("unable to create %s: %s", index_name, strerror(errno));
+               die_errno("unable to create '%s'", index_name);
        f = sha1fd(fd, index_name);
 
        /* if last object's offset is >= 2^31 we should use index V2 */
@@ -84,7 +84,7 @@ char *write_idx_file(char *index_name, struct pack_idx_entry **objects,
        sha1write(f, array, 256 * 4);
 
        /* compute the SHA1 hash of sorted object names. */
-       SHA1_Init(&ctx);
+       git_SHA1_Init(&ctx);
 
        /*
         * Write the actual SHA1 entries..
@@ -97,7 +97,7 @@ char *write_idx_file(char *index_name, struct pack_idx_entry **objects,
                        sha1write(f, &offset, 4);
                }
                sha1write(f, obj->sha1, 20);
-               SHA1_Update(&ctx, obj->sha1, 20);
+               git_SHA1_Update(&ctx, obj->sha1, 20);
        }
 
        if (index_version >= 2) {
@@ -138,7 +138,7 @@ char *write_idx_file(char *index_name, struct pack_idx_entry **objects,
 
        sha1write(f, sha1, 20);
        sha1close(f, NULL, CSUM_FSYNC);
-       SHA1_Final(sha1, &ctx);
+       git_SHA1_Final(sha1, &ctx);
        return index_name;
 }
 
@@ -166,22 +166,22 @@ void fixup_pack_header_footer(int pack_fd,
                         off_t partial_pack_offset)
 {
        int aligned_sz, buf_sz = 8 * 1024;
-       SHA_CTX old_sha1_ctx, new_sha1_ctx;
+       git_SHA_CTX old_sha1_ctx, new_sha1_ctx;
        struct pack_header hdr;
        char *buf;
 
-       SHA1_Init(&old_sha1_ctx);
-       SHA1_Init(&new_sha1_ctx);
+       git_SHA1_Init(&old_sha1_ctx);
+       git_SHA1_Init(&new_sha1_ctx);
 
        if (lseek(pack_fd, 0, SEEK_SET) != 0)
-               die("Failed seeking to start of %s: %s", pack_name, strerror(errno));
+               die_errno("Failed seeking to start of '%s'", pack_name);
        if (read_in_full(pack_fd, &hdr, sizeof(hdr)) != sizeof(hdr))
-               die("Unable to reread header of %s: %s", pack_name, strerror(errno));
+               die_errno("Unable to reread header of '%s'", pack_name);
        if (lseek(pack_fd, 0, SEEK_SET) != 0)
-               die("Failed seeking to start of %s: %s", pack_name, strerror(errno));
-       SHA1_Update(&old_sha1_ctx, &hdr, sizeof(hdr));
+               die_errno("Failed seeking to start of '%s'", pack_name);
+       git_SHA1_Update(&old_sha1_ctx, &hdr, sizeof(hdr));
        hdr.hdr_entries = htonl(object_count);
-       SHA1_Update(&new_sha1_ctx, &hdr, sizeof(hdr));
+       git_SHA1_Update(&new_sha1_ctx, &hdr, sizeof(hdr));
        write_or_die(pack_fd, &hdr, sizeof(hdr));
        partial_pack_offset -= sizeof(hdr);
 
@@ -195,8 +195,8 @@ void fixup_pack_header_footer(int pack_fd,
                if (!n)
                        break;
                if (n < 0)
-                       die("Failed to checksum %s: %s", pack_name, strerror(errno));
-               SHA1_Update(&new_sha1_ctx, buf, n);
+                       die_errno("Failed to checksum '%s'", pack_name);
+               git_SHA1_Update(&new_sha1_ctx, buf, n);
 
                aligned_sz -= n;
                if (!aligned_sz)
@@ -205,11 +205,11 @@ void fixup_pack_header_footer(int pack_fd,
                if (!partial_pack_sha1)
                        continue;
 
-               SHA1_Update(&old_sha1_ctx, buf, n);
+               git_SHA1_Update(&old_sha1_ctx, buf, n);
                partial_pack_offset -= n;
                if (partial_pack_offset == 0) {
                        unsigned char sha1[20];
-                       SHA1_Final(sha1, &old_sha1_ctx);
+                       git_SHA1_Final(sha1, &old_sha1_ctx);
                        if (hashcmp(sha1, partial_pack_sha1) != 0)
                                die("Unexpected checksum for %s "
                                    "(disk corruption?)", pack_name);
@@ -218,7 +218,7 @@ void fixup_pack_header_footer(int pack_fd,
                         * pack, which also means making partial_pack_offset
                         * big enough not to matter anymore.
                         */
-                       SHA1_Init(&old_sha1_ctx);
+                       git_SHA1_Init(&old_sha1_ctx);
                        partial_pack_offset = ~partial_pack_offset;
                        partial_pack_offset -= MSB(partial_pack_offset, 1);
                }
@@ -226,8 +226,8 @@ void fixup_pack_header_footer(int pack_fd,
        free(buf);
 
        if (partial_pack_sha1)
-               SHA1_Final(partial_pack_sha1, &old_sha1_ctx);
-       SHA1_Final(new_pack_sha1, &new_sha1_ctx);
+               git_SHA1_Final(partial_pack_sha1, &old_sha1_ctx);
+       git_SHA1_Final(new_pack_sha1, &new_sha1_ctx);
        write_or_die(pack_fd, new_pack_sha1, 20);
        fsync_or_die(pack_fd, pack_name);
 }