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base-files: sysupgrade: do not rely on opkg to list changed conffiles

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Many packages use the opkg conffiles field to list configuration files that
are to be retained on upgrades. Make this work on systems without opkg.

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
This commit is contained in:
Matthias Schiffer 2018-03-06 08:25:32 +01:00
parent 2ae9ebf374
commit 17c0362178
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GPG Key ID: 16EF3F64CB201D9C
2 changed files with 21 additions and 2 deletions
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2
package/base-files/Makefile
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@ -11,7 +11,7 @@ include $(INCLUDE_DIR)/kernel.mk
include $(INCLUDE_DIR)/version.mk
PKG_NAME:=base-files
PKG_RELEASE:=173.3
PKG_RELEASE:=173.4
PKG_FLAGS:=nonshared
PKG_FILE_DEPENDS:=$(PLATFORM_DIR)/ $(GENERIC_PLATFORM_DIR)/base-files/

21
package/base-files/files/sbin/sysupgrade
View File

@ -101,12 +101,31 @@ EOF
# prevent messages from clobbering the tarball when using stdout
[ "$CONF_BACKUP" = "-" ] && export VERBOSE=0
list_conffiles() {
awk '
BEGIN { conffiles = 0 }
/^Conffiles:/ { conffiles = 1; next }
!/^ / { conffiles = 0; next }
conffiles == 1 { print }
' /usr/lib/opkg/status
}
list_changed_conffiles() {
# Cannot handle spaces in filenames - but opkg cannot either...
list_conffiles | while read file csum; do
[ -r "$file" ] || continue
echo "${csum} ${file}" | sha256sum -sc - || echo "$file"
done
}
add_uci_conffiles() {
local file="$1"
( find $(sed -ne '/^[[:space:]]*$/d; /^#/d; p' \
/etc/sysupgrade.conf /lib/upgrade/keep.d/* 2>/dev/null) \
-type f -o -type l 2>/dev/null;
opkg list-changed-conffiles ) | sort -u > "$file"
list_changed_conffiles ) | sort -u > "$file"
return 0
}