On Sun, Jul 26, 2020 at 3:56 PM brian m. carlson <sandals@xxxxxxxxxxxxxxxxxxxx> wrote: > In dd4b732df7 ("upload-pack: send part of packfile response as uri", > 2020-06-10), the git http-fetch code learned how to take ac --packfile s/take\s+ac/take a/ > option. This option takes an argument, which is the name of a packfile > hash, and parses it using parse_oid_hex. It does so before calling > setup_git_directory. > > However, in a SHA-256 repository this fails to work, since we have not > set the hash algorithm in use and parse_oid_hex fails as a consequence. > To ensure that we can parse packfile hashes of the right length, let's > set up the git directory before we start parsing arguments. > --- Missing sign-off. > diff --git a/http-fetch.c b/http-fetch.c > @@ -86,6 +86,8 @@ int cmd_main(int argc, const char **argv) > + setup_git_directory(); > + > while (arg < argc && argv[arg][0] == '-') { > const char *p; > @@ -115,8 +117,6 @@ int cmd_main(int argc, const char **argv) > if (argc != arg + 2 - (commits_on_stdin || packfile)) > usage(http_fetch_usage); > > - setup_git_directory(); This change has the unfortunate side-effect that "git http-fetch -h" will no longer work if setup_git_directory() fails, which could easily be the case if the user is trying to get help for the command from some arbitrary location in the filesystem. It might be better to setup_git_directory() on-demand when it's needed by --packfile= rather than doing it unconditionally before the argument-parsing loop.