tree-diff: remove special-case diff-emitting code for empty-tree cases

diff --git a/builtin/fetch-pack.c b/builtin/fetch-pack.c
index 927424b6b8feaded0c13fd8e184e735e3ff9a00e..1262b405f8212e71d088f4e090b8121fa304699a 100644 (file)
--- a/builtin/fetch-pack.c
+++ b/builtin/fetch-pack.c
@@ -3,16 +3,24 @@
 #include "fetch-pack.h"
 #include "remote.h"
 #include "connect.h"
+#include "sha1-array.h"
 
 static const char fetch_pack_usage[] =
 "git fetch-pack [--all] [--stdin] [--quiet|-q] [--keep|-k] [--thin] "
 "[--include-tag] [--upload-pack=<git-upload-pack>] [--depth=<n>] "
-"[--no-progress] [-v] [<host>:]<directory> [<refs>...]";
+"[--no-progress] [--diag-url] [-v] [<host>:]<directory> [<refs>...]";
 
 static void add_sought_entry_mem(struct ref ***sought, int *nr, int *alloc,
                                 const char *name, int namelen)
 {
        struct ref *ref = xcalloc(1, sizeof(*ref) + namelen + 1);
+       unsigned char sha1[20];
+
+       if (namelen > 41 && name[40] == ' ' && !get_sha1_hex(name, sha1)) {
+               hashcpy(ref->old_sha1, sha1);
+               name += 41;
+               namelen -= 41;
+       }
 
        memcpy(ref->name, name, namelen);
        ref->name[namelen] = '\0';
@@ -39,6 +47,7 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
        char **pack_lockfile_ptr = NULL;
        struct child_process *conn;
        struct fetch_pack_args args;
+       struct sha1_array shallow = SHA1_ARRAY_INIT;
 
        packet_trace_identity("fetch-pack");
 
@@ -48,11 +57,11 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
        for (i = 1; i < argc && *argv[i] == '-'; i++) {
                const char *arg = argv[i];
 
-               if (!prefixcmp(arg, "--upload-pack=")) {
+               if (starts_with(arg, "--upload-pack=")) {
                        args.uploadpack = arg + 14;
                        continue;
                }
-               if (!prefixcmp(arg, "--exec=")) {
+               if (starts_with(arg, "--exec=")) {
                        args.uploadpack = arg + 7;
                        continue;
                }
@@ -81,11 +90,15 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
                        args.stdin_refs = 1;
                        continue;
                }
+               if (!strcmp("--diag-url", arg)) {
+                       args.diag_url = 1;
+                       continue;
+               }
                if (!strcmp("-v", arg)) {
                        args.verbose = 1;
                        continue;
                }
-               if (!prefixcmp(arg, "--depth=")) {
+               if (starts_with(arg, "--depth=")) {
                        args.depth = strtol(arg + 8, NULL, 0);
                        continue;
                }
@@ -106,6 +119,14 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
                        args.check_self_contained_and_connected = 1;
                        continue;
                }
+               if (!strcmp("--cloning", arg)) {
+                       args.cloning = 1;
+                       continue;
+               }
+               if (!strcmp("--update-shallow", arg)) {
+                       args.update_shallow = 1;
+                       continue;
+               }
                usage(fetch_pack_usage);
        }
 
@@ -146,14 +167,18 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
                fd[0] = 0;
                fd[1] = 1;
        } else {
+               int flags = args.verbose ? CONNECT_VERBOSE : 0;
+               if (args.diag_url)
+                       flags |= CONNECT_DIAG_URL;
                conn = git_connect(fd, dest, args.uploadpack,
-                                  args.verbose ? CONNECT_VERBOSE : 0);
+                                  flags);
+               if (!conn)
+                       return args.diag_url ? 0 : 1;
        }
+       get_remote_heads(fd[0], NULL, 0, &ref, 0, NULL, &shallow);
 
-       get_remote_heads(fd[0], NULL, 0, &ref, 0, NULL, NULL);
-
-       ref = fetch_pack(&args, fd, conn, ref, dest,
-                        sought, nr_sought, NULL, pack_lockfile_ptr);
+       ref = fetch_pack(&args, fd, conn, ref, dest, sought, nr_sought,
+                        &shallow, pack_lockfile_ptr);
        if (pack_lockfile) {
                printf("lock %s\n", pack_lockfile);
                fflush(stdout);