diff options
Diffstat (limited to 'baserock-system-config-sync/baserock-system-config-sync')
| -rwxr-xr-x | baserock-system-config-sync/baserock-system-config-sync | 43 |
1 files changed, 34 insertions, 9 deletions
diff --git a/baserock-system-config-sync/baserock-system-config-sync b/baserock-system-config-sync/baserock-system-config-sync index e297197..7b7c697 100755 --- a/baserock-system-config-sync/baserock-system-config-sync +++ b/baserock-system-config-sync/baserock-system-config-sync @@ -1,6 +1,6 @@ #!/bin/sh # -# Copyright (c) 2013 Codethink Ltd. +# Copyright (c) 2013-2014 Codethink Ltd. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License Version 2 as @@ -23,7 +23,7 @@ set -eu usage() { - echo "Usage: $(basename $0) merge NEW_VERSION_LABEL" >&2 + echo "Usage: $(basename $0) merge OLD_VERSION_LABEL NEW_VERSION_LABEL" >&2 echo " $(basename $0) sync CANONICAL_VERSION_LABEL" >&2 exit 1 } @@ -123,11 +123,11 @@ merge_regular_file() { # V1 Vuser V2 action # ------------------------------------------ # none none none inconceivable! - # exists none none use V1 + # exists none none do nothing # none exists none use Vuser # none none exists use V2 # exists none exists use V2 - # exists exists none use V2 + # exists exists none use Vuser # none exists exists diff V2 Vuser applied to V2 # exists exists exists diff V1 Vuser applied to V2 @@ -137,19 +137,25 @@ merge_regular_file() { case "$v1_exists $vu_exists $v2_exists" in 'exists none none') - cp -a "$v1" "$vt" + # Do nothing, if the file was removed in vu and v2 doesn't have it, + # then the file is not longer needed + echo "File $v1 was removed by the user, no longer exists" ;; 'none exists none') cp -a "$vu" "$vt" + echo "File $vu created by the user, copied to $vt" ;; 'none none exists') cp -a "$v2" "$vt" + echo "File $v2 only present in the new version, copied to $vt" ;; 'exists none exists') cp -a "$v2" "$vt" + echo "File $v2, removed by the user, copied to $vt" ;; 'exists exists none') cp -a "$vu" "$vt" + echo "File $vu, not present in the new version, copied to $vt" ;; 'none exists exists') cp -a "$v2" "$vt" @@ -159,7 +165,12 @@ merge_regular_file() { if ! (diff -u "$v2" --label="$v2" "$vu" --label="$vu" | patch "$vt" -f); then cp -a "$v2" "$vt" # merge failed, use v2 # 'patch' creates a file '.rej' with the diff that did not apply + echo "File $vt left as it was in $v2 as merging failed" + else + echo "File $vt was pached with diff between $v2 and $vu" fi + else + echo "Files $vu and $v2 are the same, not patching" fi ;; 'exists exists exists') @@ -170,7 +181,12 @@ merge_regular_file() { if ! (diff -u "$v1" --label="$v1" "$vu" --label="$vu" | patch "$vt" -f); then cp -a "$v2" "$vt" # merge failed, use v2 # 'patch' creates a file '.rej' with the diff that did not apply + echo "File $vt left as it was in $v2 as merging failed" + else + echo "File $vt was pached with diff between $v1 and $vu" fi + else + echo "Files $vu and $v2 are the same, not patching" fi ;; *) @@ -186,18 +202,19 @@ fi if [ "$1" = "merge" ]; then - if [ "$#" != 2 ]; then + if [ "$#" != 3 ]; then usage "$0" fi - new_version="$2" + old_version="$2" + new_version="$3" mounting_point=$(mktemp -d) "$mounting_script" "$mounting_point" if [ ! -d "$mounting_point/systems/$new_version" ]; then "$unmount" "$mounting_point" die "Error: version not found - '$new_version'" fi - v1_dir="$mounting_point/systems/default/orig/etc" - vu_dir="$mounting_point/systems/default/run/etc" + v1_dir="$mounting_point/systems/$old_version/orig/etc" + vu_dir="$mounting_point/systems/$old_version/run/etc" v2_dir="$mounting_point/systems/$new_version/run/etc" vt_dir="$mounting_point/systems/$new_version/run/etc.new" mkdir "$vt_dir" @@ -207,6 +224,14 @@ if [ "$1" = "merge" ]; then merge "$vu_dir" "$v1_dir" "$vu_dir" "$v2_dir" "$vt_dir" merge "$v2_dir" "$v1_dir" "$vu_dir" "$v2_dir" "$vt_dir" + if [ -f "$vu_dir/passwd" ]; then + cp "$vu_dir/passwd" "$vt_dir/passwd" + fi + if [ -f "$vu_dir/group" ]; then + cp "$vu_dir/group" "$vt_dir/group" + fi + + rm -rf "$v2_dir" mv "$vt_dir" "$v2_dir" elif [ "$1" = "sync" ]; then |