Merge branch 'bc/sha-256-part-2'

SHA-256 migration work continues.

* bc/sha-256-part-2: (44 commits)
  remote-testgit: adapt for object-format
  bundle: detect hash algorithm when reading refs
  t5300: pass --object-format to git index-pack
  t5704: send object-format capability with SHA-256
  t5703: use object-format serve option
  t5702: offer an object-format capability in the test
  t/helper: initialize the repository for test-sha1-array
  remote-curl: avoid truncating refs with ls-remote
  t1050: pass algorithm to index-pack when outside repo
  builtin/index-pack: add option to specify hash algorithm
  remote-curl: detect algorithm for dumb HTTP by size
  builtin/ls-remote: initialize repository based on fetch
  t5500: make hash independent
  serve: advertise object-format capability for protocol v2
  connect: parse v2 refs with correct hash algorithm
  connect: pass full packet reader when parsing v2 refs
  Documentation/technical: document object-format for protocol v2
  t1302: expect repo format version 1 for SHA-256
  builtin/show-index: provide options to determine hash algo
  t5302: modernize test formatting
  ...

diff --cc Documentation/gitremote-helpers.txt
Simple merge

diff --cc Documentation/technical/protocol-v2.txt
Simple merge

diff --cc builtin/clone.c
Simple merge

diff --cc builtin/receive-pack.c
Simple merge

diff --cc connect.c
index 0df45a110888e53e4d6f3f86bafc76abcd096297,2ada5b516186eb1743e3856dc9c4e6f28a1ed6be..e0d5b9fee05fc5db4c329d4825600020dce8910a
--- 1/connect.c
--- 2/connect.c
+++ b/connect.c
@@@ -419,10 -442,10 +454,11 @@@ void check_stateless_delimiter(int stat
  struct ref **get_remote_refs(int fd_out, struct packet_reader *reader,
                             struct ref **list, int for_push,
                             const struct argv_array *ref_prefixes,
 -                           const struct string_list *server_options)
 +                           const struct string_list *server_options,
 +                           int stateless_rpc)
  {
        int i;
+       const char *hash_name;
        *list = NULL;
  
        if (server_supports_v2("ls-refs", 1))

diff --cc connect.h
Simple merge

diff --cc fetch-pack.c
Simple merge

diff --cc git-compat-util.h
Simple merge

diff --cc git.c
Simple merge

diff --cc pkt-line.c
Simple merge

diff --cc pkt-line.h
Simple merge

diff --cc remote-curl.c
Simple merge

diff --cc send-pack.c
Simple merge

diff --cc serve.c
Simple merge

diff --cc setup.c
Simple merge

diff --cc t/t3200-branch.sh
Simple merge

diff --cc t/t5500-fetch-pack.sh
Simple merge

diff --cc t/t5550-http-fetch-dumb.sh
Simple merge

diff --cc t/t5702-protocol-v2.sh
Simple merge

diff --cc t/t5703-upload-pack-ref-in-want.sh
Simple merge

diff --cc t/test-lib.sh
Simple merge

diff --cc transport-helper.c
Simple merge

diff --cc transport.c
Simple merge

diff --cc transport.h
Simple merge

diff --cc upload-pack.c
index 39d0cf00be70ec76368dfbce9a2efab5815aea47,df6cb51db7c7b7e7054087ca74909ad03f19f145..951a2b23aaf8f03d08f8976557de8616bbb2b5ca
--- 1/upload-pack.c
--- 2/upload-pack.c
+++ b/upload-pack.c
@@@ -1131,17 -1004,18 +1131,18 @@@ static int send_ref(const char *refname
        if (capabilities) {
                struct strbuf symref_info = STRBUF_INIT;
  
 -              format_symref_info(&symref_info, cb_data);
 +              format_symref_info(&symref_info, &data->symref);
-               packet_write_fmt(1, "%s %s%c%s%s%s%s%s%s agent=%s\n",
+               packet_write_fmt(1, "%s %s%c%s%s%s%s%s%s object-format=%s agent=%s\n",
                             oid_to_hex(oid), refname_nons,
                             0, capabilities,
 -                           (allow_unadvertised_object_request & ALLOW_TIP_SHA1) ?
 +                           (data->allow_uor & ALLOW_TIP_SHA1) ?
                                     " allow-tip-sha1-in-want" : "",
 -                           (allow_unadvertised_object_request & ALLOW_REACHABLE_SHA1) ?
 +                           (data->allow_uor & ALLOW_REACHABLE_SHA1) ?
                                     " allow-reachable-sha1-in-want" : "",
 -                           stateless_rpc ? " no-done" : "",
 +                           data->stateless_rpc ? " no-done" : "",
                             symref_info.buf,
 -                           allow_filter ? " filter" : "",
 +                           data->allow_filter ? " filter" : "",
+                            the_hash_algo->name,
                             git_user_agent_sanitized());
                strbuf_release(&symref_info);
        } else {