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Date: Wed, 15 Jan 1997 00:18:34 -0800 (PST)
Message-Id: <199701150818.AAA04539@silvia.HIP.Berkeley.EDU>
To: ports@freebsd.org, jkh@freebsd.org
Subject: please test (+REQUIRED_BY support)
From: asami@vader.cs.berkeley.edu (Satoshi Asami)
Sender: owner-ports@freebsd.org
X-Loop: FreeBSD.org
Precedence: bulk

The following patch adds support for the +REQUIRED_BY file in
/var/db/pkg.  If you make install port A, and then port B that depends 
on port B, you will no longer see the "can't open +REQUIRED_BY" when
you do a pkg_delete on B.  (And more importantly, pkg_delete will
complain if you try to remove port A.)

It will check for the existence of the directory of the depended port,
then see if the line already exists (note grep will return false if
the file doesn't exist or the line doesn't exist) and adds it if it
doesn't.  It will not create a directory or the depended port if it
doesn't exist.

I will be back on Saturday, so please test it before then.

Satoshi
-------
Index: bsd.port.mk
===================================================================
RCS file: /usr/cvs/src/share/mk/bsd.port.mk,v
retrieving revision 1.247
diff -u -r1.247 bsd.port.mk
--- bsd.port.mk	1997/01/14 06:33:27	1.247
+++ bsd.port.mk	1997/01/15 05:52:01
@@ -1598,6 +1598,14 @@
 		if [ -f ${PKGDIR}/REQ ]; then \
 			${CP} ${PKGDIR}/REQ ${PKG_DBDIR}/${PKGNAME}/+REQ; \
 		fi; \
+		for dep in `make package-depends | sort -u`; do \
+			if [ -d ${PKG_DBDIR}/$$dep ]; then \
+				if ! ${GREP} ^${PKGNAME}$$ ${PKG_DBDIR}/$$dep/+REQUIRED_BY \
+					>/dev/null 2>&1; then \
+					${ECHO} ${PKGNAME} >> ${PKG_DBDIR}/$$dep/+REQUIRED_BY; \
+				fi; \
+			fi; \
+		done; \
 	else \
 		${ECHO_MSG} "===>  ${PKGNAME} is already installed - perhaps an older version?"; \
 		${ECHO_MSG} "      If so, you may wish to \`\`pkg_delete ${PKGNAME}'' and install"; \