[PATCH] isar-mmdebstrap: reduce rootfs size as much as possible

["srinuvasan.a via isar-users" <isar-users@googlegroups.com>]

From: srinuvasan <srinuvasan.a@siemens.com>

reduce the rootfs image size by excluding man and doc, this
changes significantly reduce size from (~80MB) to (~64MB).

Signed-off-by: srinuvasan <srinuvasan.a@siemens.com>
---
 meta/recipes-core/isar-mmdebstrap/isar-mmdebstrap.inc | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/meta/recipes-core/isar-mmdebstrap/isar-mmdebstrap.inc b/meta/recipes-core/isar-mmdebstrap/isar-mmdebstrap.inc
index 931f6f13..1e2ad40f 100644
--- a/meta/recipes-core/isar-mmdebstrap/isar-mmdebstrap.inc
+++ b/meta/recipes-core/isar-mmdebstrap/isar-mmdebstrap.inc
@@ -24,6 +24,14 @@ DPKG_HOOKS ?= "${@'--hook-dir='+d.getVar('MM_HOOK_JESSIE') \
 MMHOOKS:focal ?= "${DPKG_HOOKS}"
 MMHOOKS:buster ?= "${DPKG_HOOKS}"
 
+CLEANUP_DOCS = "--dpkgopt='path-exclude=/usr/share/man/*' \
+                --dpkgopt='path-include=/usr/share/man/man[1-9]/*' \
+                --dpkgopt='path-exclude=/usr/share/locale/*' \
+                --dpkgopt='path-include=/usr/share/locale/locale.alias' \
+                --dpkgopt='path-exclude=/usr/share/doc/*' \
+                --dpkgopt='path-include=/usr/share/doc/*/copyright' \
+                --dpkgopt='path-include=/usr/share/doc/*/changelog.Debian.*'"
+
 DISTRO_BOOTSTRAP_KEYRING = "${WORKDIR}/distro-keyring.gpg"
 
 def get_distro_have_https_source(d):
@@ -199,6 +207,7 @@ do_bootstrap() {
                    --customize-hook='sed -i "/en_US.UTF-8 UTF-8/s/^#//g" "$1/etc/locale.gen"' \
                    --customize-hook='chroot "$1" /usr/sbin/locale-gen' \
                    --customize-hook='chroot "$1" /usr/bin/apt-get -y clean' \
+	           ${CLEANUP_DOCS} \
                    --skip=cleanup/apt \
                    --skip=download/empty \
                    ${@get_apt_opts(d, '--aptopt')} \
-- 
2.39.5

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