Re: [PATCH v2 3/5] hook API: support passing stdin to hooks, convert am's 'post-rewrite'

Ævar Arnfjörð Bjarmason  [off-list ref] writes:

From: Emily Shaffer <redacted>

Convert the invocation of the 'post-rewrite' hook run by 'git am' to
use the hook.h library. To do this we need to add a "path_to_stdin"
member to "struct run_hooks_opt".

In our API this is supported by asking for a file path, rather
than by reading stdin. Reading directly from stdin would involve caching
the entire stdin (to memory or to disk) once the hook API is made to
support "jobs" larger than 1, along with support for executing N hooks
at a time (i.e. the upcoming config-based hooks).

OK, that is a sensible plan to spool and dup/tee the input to
children.  It may not be necessary yet at this step, but it is very
good to be thinking ahead.

Looking good.