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authorLibravatar Shawn O. Pearce <spearce@spearce.org>2007-03-10 03:28:16 -0500
committerLibravatar Junio C Hamano <junkio@cox.net>2007-03-11 22:56:03 -0700
commitf43cd49fb82b0eee10b88833b58edd711fe8298d (patch)
tree80310d2aa2fc7480bc25c6223e186cf12385e6b6 /t/t4101
parentSplit back out update_hook handling in receive-pack (diff)
downloadtgif-f43cd49fb82b0eee10b88833b58edd711fe8298d.tar.xz
Change {pre,post}-receive hooks to use stdin
Sergey Vlasov, Andy Parkins and Alex Riesen all pointed out that it is possible for a single invocation of receive-pack to be given more refs than the OS might allow us to pass as command line parameters to a single hook invocation. We don't want to break these up into multiple invocations (like xargs might do) as that makes it impossible for the pre-receive hook to verify multiple related ref updates occur at the same time, and it makes it harder for post-receive to send out a single batch notification. Instead we pass the reference data on a pipe connected to the hook's stdin, supplying one ref per line to the hook. This way a single hook invocation can obtain an infinite amount of ref data, without bumping into any operating system limits. Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
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