• Martin Ågren's avatar
    git.c: provide setup_auto_pager() · 033fe3d9
    Martin Ågren authored
    The previous patch introduced a way for builtins to declare that they
    will take responsibility for handling the `pager.foo`-config item. (See
    the commit message of that patch for why that could be useful.)
    
    Provide setup_auto_pager(), which builtins can call in order to handle
    `pager.<cmd>`, including possibly starting the pager. Make this function
    don't do anything if a pager has already been started, as indicated by
    use_pager or pager_in_use().
    
    Whenever this function is called from a builtin, git.c will already have
    called commit_pager_choice(). Since commit_pager_choice() treats the
    special value -1 as "punt" or "not yet decided", it is not a problem
    that we might end up calling commit_pager_choice() once in git.c and
    once (or more) in the builtin. Make the new function use -1 in the same
    way and document it as "punt".
    
    Don't add any users of setup_auto_pager just yet, one will follow in
    a later patch.
    Suggested-by: default avatarJeff King <peff@peff.net>
    Signed-off-by: default avatarMartin Ågren <martin.agren@gmail.com>
    Signed-off-by: default avatarJunio C Hamano <gitster@pobox.com>
    033fe3d9
builtin.h 12.1 KB