Handling user input and package building

[Kris Kennaway]

Paul Schmehl wrote:
> I'm trying to figure out how to handle user input in package building mode.
> 
> I've got statements like this in my Makefile, and they work fine to 
> suppress user input from the pkg-install script:
> 
> pre-install:
> .if !defined(PACKAGE_BUILDING)
>        @${SETENV} ${SCRIPTS_ENV} PKG_PREFIX=${PREFIX} \
>                ${SH} ${PKGINSTALL} ${PKGNAME} PRE-INSTALL
> .endif
> 
> However, the same syntax doesn't seem to work for the pkg-deinstall 
> script, which also requires user input.
> 
> .if defined(PACKAGE_BUILDING)
> deinstall:
>        @${SETENV} ${SCRIPTS_ENV} PKG_PREFIX=${PREFIX} \
>                ${SH} ${PKGDEINSTALL} ${PORTNAME} DEINSTALL
> post-deinstall:
>        @${SETENV} ${SCRIPTS_ENV} PKG_PREFIX=${PREFIX} \
>                ${SH} ${PKGDEINSTALL} ${PORTNAME} POST-DEINSTALL
> .endif
> 
> One other question.  The Porters Handbook says:
> "If your port requires user input to build, configure, or install, you 
> must set IS_INTERACTIVE in your Makefile. "
> 
> Yet portlint says:
> "WARN: Makefile: [25]: use of IS_INTERACTIVE discouraged. provide batch 
> mode by using BATCH and/or FOR_CDROM."
> 
> What's the correct way to do this?
> 

Avoid the requirement of interactive input at all costs.

Kris