Over the time the default value for --thin has been switched between
on and off. As of now it's always on, even if --no-thin is given.
Correct the code to respect --no-thin.

receive-pack learns about --no-thin only for testing purposes, hence
no document update.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com>
---
 v3 gets rid of seq in the test.

 builtin/push.c         |  5 ++---
 builtin/receive-pack.c |  8 +++++++-
 t/t5516-fetch-push.sh  | 16 ++++++++++++++++
 3 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/builtin/push.c b/builtin/push.c
index 04f0eaf..333a1fb 100644
--- a/builtin/push.c
+++ b/builtin/push.c
@@ -15,7 +15,7 @@ static const char * const push_usage[] = {
        NULL,
 };
 
-static int thin;
+static int thin = 1;
 static int deleterefs;
 static const char *receivepack;
 static int verbosity;
@@ -313,8 +313,7 @@ static int push_with_options(struct transport *transport, 
int flags)
        if (receivepack)
                transport_set_option(transport,
                                     TRANS_OPT_RECEIVEPACK, receivepack);
-       if (thin)
-               transport_set_option(transport, TRANS_OPT_THIN, "yes");
+       transport_set_option(transport, TRANS_OPT_THIN, thin ? "yes" : NULL);
 
        if (verbosity > 0)
                fprintf(stderr, _("Pushing to %s\n"), transport->url);
diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index e3eb5fc..da60817 100644
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -38,6 +38,7 @@ static int quiet;
 static int prefer_ofs_delta = 1;
 static int auto_update_server_info;
 static int auto_gc = 1;
+static int fix_thin = 1;
 static const char *head_name;
 static void *head_name_to_free;
 static int sent_capabilities;
@@ -869,7 +870,8 @@ static const char *unpack(int err_fd)
                keeper[i++] = "--stdin";
                if (fsck_objects)
                        keeper[i++] = "--strict";
-               keeper[i++] = "--fix-thin";
+               if (fix_thin)
+                       keeper[i++] = "--fix-thin";
                keeper[i++] = hdr_arg;
                keeper[i++] = keep_arg;
                keeper[i++] = NULL;
@@ -975,6 +977,10 @@ int cmd_receive_pack(int argc, const char **argv, const 
char *prefix)
                                stateless_rpc = 1;
                                continue;
                        }
+                       if (!strcmp(arg, "--no-thin")) {
+                               fix_thin = 0;
+                               continue;
+                       }
 
                        usage(receive_pack_usage);
                }
diff --git a/t/t5516-fetch-push.sh b/t/t5516-fetch-push.sh
index 4691d51..3cfd1cd 100755
--- a/t/t5516-fetch-push.sh
+++ b/t/t5516-fetch-push.sh
@@ -1172,4 +1172,20 @@ test_expect_success 'push --follow-tag only pushes 
relevant tags' '
        test_cmp expect actual
 '
 
+test_expect_success 'push --no-thin must produce non-thin pack' '
+       cat >>path1 <<\EOF &&
+keep base version of path1 big enough, compared to the new changes
+later, in order to pass size heuristics in
+builtin/pack-objects.c:try_delta()
+EOF
+       git commit -am initial &&
+       git init no-thin &&
+       git --git-dir=no-thin/.git config receive.unpacklimit 0 &&
+       git push no-thin/.git refs/heads/master:refs/heads/foo &&
+       echo modified >> path1 &&
+       git commit -am modified &&
+       git repack -adf &&
+       git push --no-thin --receive-pack="git receive-pack --no-thin" 
no-thin/.git refs/heads/master:refs/heads/foo
+'
+
 test_done
-- 
1.8.2.83.gc99314b

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