lib/checkout.sh: Fix greedy checkout_infrastructure().

The checkout_infrastructure() function was checking out every file
from md5sums that matched the 'depends' component name.  This fix
makes sure to use the configs/<component>.conf file (or the user's
<component>=<version> command line) for the full component version or
name.

Change-Id: I302fa96052bef23d56d65054c6368e8a19416306

1 files changed, 34 insertions, 2 deletions

diff --git a/lib/checkout.sh b/lib/checkout.sh
index 54ff68d2..76962a31 100644
--- a/lib/checkout.sh
+++ b/lib/checkout.sh
@@ -30,6 +30,7 @@ checkout_infrastructure()
     trace "$*"
 
     if test x"${supdate}" = xno; then
+	warning "checkout_infrastructure called with --disable update. Checkout of infrastructure files will be skipped."
 	return 0
     fi
 
@@ -50,10 +51,41 @@ checkout_infrastructure()
     # some libraries depend on other libraries being bult first. Egrep
     # unfortunately sorts the files, which screws up the order.
     local files="`grep ^latest= ${topdir}/config/dejagnu.conf | cut -d '\"' -f 2`"
+
+    local version=
     for i in ${depends}; do
-     	files="${files} `grep /$i ${local_snapshots}/md5sums | cut -d ' ' -f3 | uniq`"
-    done
+	case $i in
+	    linux) version=${linux_version} ;;
+	    mpfr) version=${mpfr_version} ;;
+	    mpc) version=${mpc_version} ;;
+	    gmp) version=${gmp_version} ;;
+	    dejagnu) version=${dejagnu_version} ;;
+	    *)
+		error "config/infrastructure.conf contains an unknown dependency: $i"
+		return 1
+		;;
+	esac
 
+	# If the user didn't set it, check the <component>.conf files for
+	# 'latest'.
+	if test "${version:+set}" != "set"; then
+	    version="`grep ^latest= ${topdir}/config/${i}.conf | cut -d '\"' -f 2`"
+	    # Sometimes config/${i}.conf uses <component>-version and sometimes
+	    # it just uses 'version'.  Regardless, searching the md5sums file requires
+	    # that we include the component name.
+	    version=${i}-${version#${i}-}
+	fi
+
+	if test "${version:+found}" != "found"; then
+	    error "Can't find a version for component \"$i\" in ${i}.conf"
+	    return 1
+	fi
+
+	# Hopefully we only download the exact match for each one.  Depending
+	# how vague the user is it might download multiple tarballs.
+	files="${files} `grep /${version} ${local_snapshots}/md5sums | cut -d ' ' -f3 | uniq`"
+	unset version
+    done
 
     for i in ${files}; do
 	local name="`echo $i | sed -e 's:\.tar\..*::' -e 's:infrastructure/::'  -e 's:testcode/::'`"