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authorluigi <luigi@FreeBSD.org>2009-03-18 18:43:31 +0000
committerluigi <luigi@FreeBSD.org>2009-03-18 18:43:31 +0000
commit9f91fe4f6bb519a3c35b1c93fd0afdddd7817f59 (patch)
treef630ee8faf2ab696e22aa7878c3b59fb94b5abe5
parentbbf812d15dd3615659976d52cc1162d71643a5fc (diff)
downloadFreeBSD-src-9f91fe4f6bb519a3c35b1c93fd0afdddd7817f59.zip
FreeBSD-src-9f91fe4f6bb519a3c35b1c93fd0afdddd7817f59.tar.gz
add the option to picobsd to copy files from the host filesystem
without root privs. This is done, among other things, replacing the absolute paths in the symlinks with relative paths, so we do not need to do a chroot to follow them. Still need to update the manpage. MFC after: 3 days
-rwxr-xr-xrelease/picobsd/build/picobsd55
1 files changed, 50 insertions, 5 deletions
diff --git a/release/picobsd/build/picobsd b/release/picobsd/build/picobsd
index a3b3cf5..85ed85a 100755
--- a/release/picobsd/build/picobsd
+++ b/release/picobsd/build/picobsd
@@ -284,6 +284,9 @@ build_image() {
if [ -f ${MY_TREE}/config ] ; then
. ${MY_TREE}/config
fi
+ if [ -f ${o_additional_config} ] ; then
+ . ${o_additional_config}
+ fi
# location of the object directory
PICO_OBJ=${l_objtree}/picobsd/${THETYPE}
@@ -529,6 +532,32 @@ populate_floppy_fs() { # OK
) || true
}
+# Copy the specified files to the destination filesystem.
+# Each file is specified as a pair "src dst", dst is assumed to be
+# a directory (and created with mkdir -p) if it has a trailing /
+# Be careful to escape metacharacters.
+# You can use ${CROSS} to point to the root of the cross build
+# (remember that it might be incomplete)
+
+do_copyfiles() { # rootdir varname
+ log Copy files to $1
+ local root=$1
+ local srcs dst
+ local CROSS=${_SHLIBDIRPREFIX}
+ eval set "\${${2}}"
+ srcs=""
+ for dst in $* ; do
+ [ x"$srcs" = x ] && srcs=$dst && continue
+ eval srcs="$srcs" # expand wildcard and vars
+ case x"$dst" in
+ */ ) mkdir -p ${root}/${dst} ;;
+ # * ) mkdir -p `dirname ${root}/${dst}` ;;
+ esac
+ cp -p ${srcs} ${root}/${dst} || true
+ srcs=""
+ done
+}
+
# Populate the memory filesystem with binaries and non-variable
# configuration files.
# First do an mtree pass, then create directory links and device entries,
@@ -537,7 +566,7 @@ populate_floppy_fs() { # OK
# Finally, if required, make a copy of the floppy.tree onto /fd
populate_mfs_tree() {
- local a dst MFS_TREE
+ local i j a dst MFS_TREE
log "populate_mfs_tree()"
dst=${BUILDDIR}/mfs.tree
@@ -552,12 +581,15 @@ populate_mfs_tree() {
log "Running mtree using $a..."
mtree -deU -f $a -p ${dst} > /dev/null || fail $? mtree
- # XXX create links
+ # Create symlinks using relative pathnames, so it is possible
+ # to follow them also when building the image.
+ # Note that names in STAND_LINKS should not have a leading /
for i in ${STAND_LINKS}; do
- ln -s /stand ${dst}/$i
+ j=`echo $i | sed -E 's:^[^/]+::;s:/[^/]+:../:g'`
+ ln -s ${j}stand ${dst}/$i
done
- ln -s /dev/null ${dst}/var/run/log
- ln -s /etc/termcap ${dst}/usr/share/misc/termcap
+ ln -s ../../dev/null ${dst}/var/run/log
+ ln -s ../../../etc/termcap ${dst}/usr/share/misc/termcap
### now build the crunched binaries ###
(
@@ -629,6 +661,13 @@ populate_mfs_tree() {
(cd ${dst}; chown -R root . )
fi
+ if [ -n "${copy_files}" ] ; then
+ do_copyfiles ${dst} copy_files
+ fi
+
+ # The 'import_files' mechanism is deprecated, as it requires
+ # root permissions to follow the symlinks, and also does
+ # not let you rename the entries.
if [ -n "${import_files}" ] ; then
log "importing ${import_files} into mfs"
# We do it in a chroot environment on the target so
@@ -641,6 +680,7 @@ populate_mfs_tree() {
rm -rf ${dst}/rescue
fi
+ # final step -- build the mfs image
(cd ${BUILDDIR}
# override the owner
echo "/set uid=0 gid=0" > mtree.out
@@ -916,6 +956,11 @@ while [ true ]; do
generate_iso="YES"
;;
+ --cfg) # read additional config from this file
+ o_additional_config=`realpath $2`
+ shift
+ ;;
+
*)
break
;;
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