make livecd depclean settings optional

allow livecd to keep build deps or just not run depclean at all

4 files changed, 22 insertions, 2 deletions

diff --git a/doc/catalyst-spec.5.txt b/doc/catalyst-spec.5.txt
index a1559faf..5e9cf87a 100644
--- a/doc/catalyst-spec.5.txt
+++ b/doc/catalyst-spec.5.txt
@@ -383,6 +383,15 @@ This is a list of any other files, not belonging to the above
 packages, that you would wish to have copied into your netboot image
 (example: `/lib/libresolv.so.2 /lib/libnss_compat.so.2`).
 
+*livecd/depclean*::
+This feature controls the depclean run after fsscript and before unmerge.
+The default is unset, and will run emerge --depclean --with-bdeps=n which results
+in the smallest possible livecd.  For some use cases it may be nice to not run depclean at all,
+or to keep build deps.  For those cases, the following two special cases are available:
+livecd/depclean: no
+livecd/depclean: keepbdeps
+This setting is only supported by the livecd target.
+
 *<target>/unmerge*::
 This is a list of packages that will be unmerged after all the kernels
 have been built (example: `autoconf automake libtool m4 bison`).
diff --git a/examples/livecd-stage2_template.spec b/examples/livecd-stage2_template.spec
index a90b7aac..a19812ae 100644
--- a/examples/livecd-stage2_template.spec
+++ b/examples/livecd-stage2_template.spec
@@ -336,6 +336,13 @@ boot/kernel/gentoo/console:
 # Currently this feature will be enabled if livecd/verify is defined to *any* value, leave commented to disable.
 #livecd/verify: true
 
+# This feature controls the depclean run after fsscript and before unmerge.
+# The default is unset, and will run emerge --depclean --with-bdeps=n which results
+# in the smallest possible livecd.  For some use cases it may be nice to not run depclean at all,
+# or to keep build deps.  For those cases, the following two special cases are available:
+# livecd/depclean: no
+# livecd/depclean: keepbdeps
+
 # This is a list of packages that will be unmerged after all the kernels have
 # been built.  There are no checks on these packages, so be careful what you
 # add here.  They can potentially break your CD.
diff --git a/targets/livecd-stage2/livecd-stage2-controller.sh b/targets/livecd-stage2/livecd-stage2-controller.sh
index 845d6d55..2f0af1f9 100755
--- a/targets/livecd-stage2/livecd-stage2-controller.sh
+++ b/targets/livecd-stage2/livecd-stage2-controller.sh
@@ -187,7 +187,7 @@ case $1 in
 		;;
 
 	unmerge)
-		exec_in_chroot ${clst_shdir}/support/depclean.sh
+		[ "${clst_depclean}" != "no" ] && exec_in_chroot ${clst_shdir}/support/depclean.sh
 		shift
         	export clst_packages="$*"
 		exec_in_chroot ${clst_shdir}/support/unmerge.sh
diff --git a/targets/support/depclean.sh b/targets/support/depclean.sh
index aa66c9fd..b3640958 100755
--- a/targets/support/depclean.sh
+++ b/targets/support/depclean.sh
@@ -4,6 +4,10 @@ source /tmp/chroot-functions.sh
 
 # If the user enabled PRESERVE_LIBS in options, tell portage to preserve them.
 [ -n "${clst_PRESERVE_LIBS}" ] && FEATURES="${clst_myfeatures} preserve-libs"
-run_merge --depclean --with-bdeps=n
+if [ "${clst_depclean}" = "keepbdeps" ]; then
+	run_merge --depclean --with-bdeps=y
+else
+	run_merge --depclean --with-bdeps=n
+fi
 
 exit 0