Copies selected configs to Git or Hg repository. It is better than track entire /etc with tons of garbage.
echo '
/boot/grub/grub.cfg
/etc/apt/sources.list.d/
/etc/fstab
/etc/group
/etc/passwd
/etc/shadow
/etc/rc.local
/root/.ssh/
' > myconfigs.lst
git init myconfigs
configs2git myconfigs.lst myconfigs/
When script is named as configs2hg, it tries to use Mercurial instead of Git.
| #!/bin/sh | |
| # | |
| # configs2git | |
| # configs2git -- backup filelist to Git/Mercurial repository. | |
| # | |
| # Required utilities: hg or git, rsync, mail (with "admins" alias) | |
| # | |
| # Written at Dec-2014 by [email protected] | |
| # Distributed as public domain. | |
| # | |
| INSTALL_ME_SO=' | |
| cd /usr/local/bin && | |
| wget -qO configs2git https://gist.githubusercontent.com/ilyaevseev/d34ade484e6782d71db1/raw/79ecef988737c5f1860a1c4482ce194619279f17/configs2git && | |
| chmod +x configs2git | |
| ' | |
| ROOTDIR="/" | |
| DELMODE="warn" | |
| MYNAME="$(basename $0)" | |
| Err() { | |
| echo "$@" | mail -s "$MYNAME" admins | |
| logger -p user.err -t "$MYNAME" -s "$@" | |
| } | |
| Fail() { Err "$@"; exit 1; } | |
| case "$MYNAME" in | |
| *git* ) BASESYS="git" ;; | |
| *hg* | *mercurial* ) BASESYS="hg" ;; | |
| * ) Fail "my name is not configs2hg nor configs2git" ;; | |
| esac | |
| HgFail() { Fail "$BASESYS $@ failed in $DESTDIR"; } | |
| Doit() { | |
| test -n "$VERBOSE" && echo "$@" | |
| test -n "$DRY_RUN" || "$@" | |
| } | |
| while test $# != 0; do | |
| case "$1" in | |
| --trace ) shift; set -x ;; | |
| --dry ) shift; VERBOSE=1 ; DRY_RUN=1 ;; | |
| --verbose ) shift; VERBOSE=1 ;; | |
| --rootdir ) shift; test $# = 0 && Fail "missing --rootdir value"; ROOTDIR="$1"; shift ;; | |
| --delmode ) shift; test $# = 0 && Fail "missing --delmode value"; DELMODE="$1"; shift ;; | |
| -* ) Fail "wrong cmdline: $1" ;; | |
| * ) break ;; | |
| esac | |
| done | |
| test $# = 2 || Fail "usage: $0 filelist destdir" | |
| FILELIST="$1" | |
| DESTDIR="$2" | |
| test -d "$DESTDIR/.$BASESYS" || Fail "Missing subdir $DESTDIR/.$BASESYS" | |
| NOT_EMPTY= | |
| while read fn; do | |
| fn=${fn%%#*} # ..strip comments | |
| test "$fn" = "" && continue # ..skip empty lines. todo!!! trim spaces??? | |
| NOT_EMPTY=1 | |
| # todo??? support wildcards!!! | |
| src="$ROOTDIR/$fn" | |
| dst="$DESTDIR/$fn" | |
| if test -e "$dst" -a -e "$src"; then | |
| srctype="$(LANG=C stat -c '%F' "$src" 2>/dev/null)" | |
| dsttype="$(LANG=C stat -c '%F' "$dst" 2>/dev/null)" | |
| test "$srctype" = "$dsttype" || Fail "type changed: src:$src:$srctype dst:$dst:$dsttype" | |
| fi | |
| if test -d "$src/."; then | |
| mkdir -p "$dst" || Fail "mkdir $dst" | |
| Doit rsync -auq --delete --numeric-ids "$src/" "$dst/" || Fail "rsync $src $dst" | |
| # todo!!! use cp instead of rsync??? | |
| elif test -e "$src"; then | |
| Doit mkdir -p "$(dirname $dst)" || Fail "mkdir dirname $dst" | |
| Doit cp -auf "$src" "$dst" || Fail "cp $src $dst" | |
| else | |
| case "$DELMODE" in | |
| stop ) Fail "missing file $src" ;; | |
| skip ) ;; | |
| warn ) Err "missing file $src" ;; | |
| rm ) Doit rm -rf "$dst" ;; | |
| * ) Fail "wrong DELMODE value: $DELMODE" ;; | |
| esac | |
| fi | |
| done < $FILELIST | |
| test -z "$NOT_EMPTY" && Fail "nothing readed from $FILELIST" | |
| cd "$DESTDIR" | |
| "$BASESYS" status >/dev/null || HgFail "status" | |
| msg="$MYNAME: autocommit at $(date '+%Y-%m-%d_%H:%M:%S')" | |
| case "$BASESYS" in | |
| hg ) hg status | grep -q '' || exit # ..nothing to do | |
| Doit hg addremove || HgFail "addremove" | |
| Doit hg commit -m "$msg" || HgFail "commit" | |
| ;; | |
| git ) git status | grep -qi 'nothing to commit' && exit | |
| Doit git add -A || HgFail "add -A" | |
| Doit git commit -am "$msg" || HgFail "commit" | |
| ;; | |
| esac |