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index-pack: complain when --stdin is used outside of a repo

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The index-pack builtin is marked as RUN_SETUP_GENTLY,
because it's perfectly fine to index a pack in the
filesystem outside of any repository. However, --stdin mode
will write the result to the object database, which does not
make sense outside of a repository. Doing so creates a bogus
".git" directory with nothing in it except the newly-created
pack and its index.

Instead, let's flag this as an error and abort.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King
2016-12-15 21:30:59 -05:00
committed by Junio C Hamano
parent de95302a4c
commit 7176a31444
2 changed files with 17 additions and 0 deletions
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builtin/index-pack.c
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@ -1730,6 +1730,8 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix)
usage(index_pack_usage);
if (fix_thin_pack && !from_stdin)
die(_("--fix-thin cannot be used without --stdin"));
if (from_stdin && !startup_info->have_repository)
die(_("--stdin requires a git repository"));
if (!index_name && pack_name)
index_name = derive_filename(pack_name, ".idx", &index_name_buf);
if (keep_msg && !keep_name && pack_name)