installer: use timestamped backups to preserve all old zshrcs

This commit is contained in:
Andrew Janke 2015-09-23 18:41:48 -04:00
commit d9cdc20ce6
2 changed files with 34 additions and 11 deletions

View file

@ -58,6 +58,30 @@ main() {
exit 1 exit 1
} }
# Keep most recent old .zshrc at .zshrc.pre-oh-my-zsh, and older ones
# with datestamp of installation that moved them aside, so we never actually
# destroy a user's original zshrc
printf "${BLUE}Looking for an existing zsh config...${NORMAL}\n"
# Must use this exact name so uninstall.sh can find it
OLD_ZSHRC=~/.zshrc.pre-oh-my-zsh
if [ -f ~/.zshrc ] || [ -h ~/.zshrc ]; then
if [ -e "$OLD_ZSHRC" ]; then
TIMESTAMP="$(date +%Y-%m-%d_%H-%M-%S)"
OLD_OLD_ZSHRC="${OLD_ZSHRC}-${TIMESTAMP}"
if [ -e "$OLD_OLD_ZSHRC" ]; then
echo "Error: $OLD_OLD_ZSHRC exists" >&2
echo "Just re-run this again in a couple seconds" &>2
exit 1
fi
mv "$OLD_ZSHRC" "${OLD_OLD_ZSHRC}"
# intentional omitted newline
printf "${YELLOW}Found old ~/.zshrc.pre-oh-my-zsh.${NORMAL} "
printf "${GREEN}Backing up to ${OLD_OLD_ZSHRC}${NORMAL}\n"
fi
printf "${YELLOW}Found ~/.zshrc.${NORMAL} ${GREEN}Backing up to ${OLD_ZSHRC}${NORMAL}\n"
mv ~/.zshrc "$OLD_ZSHRC";
fi
# The Windows (MSYS) Git is not compatible with normal use on cygwin # The Windows (MSYS) Git is not compatible with normal use on cygwin
if [ "$OSTYPE" = cygwin ]; then if [ "$OSTYPE" = cygwin ]; then
if git --version | grep msysgit > /dev/null; then if git --version | grep msysgit > /dev/null; then

View file

@ -6,24 +6,23 @@ then
fi fi
echo "Removing ~/.oh-my-zsh" echo "Removing ~/.oh-my-zsh"
if [ -d ~/.oh-my-zsh ] if [ -d ~/.oh-my-zsh ]; then
then
rm -rf ~/.oh-my-zsh rm -rf ~/.oh-my-zsh
fi fi
echo "Looking for original zsh config..." echo "Looking for original zsh config..."
if [ -f ~/.zshrc.pre-oh-my-zsh ] || [ -h ~/.zshrc.pre-oh-my-zsh ] ZSHRC_ORIG=~/.zshrc.pre-oh-my-zsh
then if [ -e "$ZSHRC_ORIG" ]; then
echo "Found ~/.zshrc.pre-oh-my-zsh -- Restoring to ~/.zshrc"; echo "Found $ZSHRC_ORIG -- Restoring to ~/.zshrc";
if [ -f ~/.zshrc ] || [ -h ~/.zshrc ] if [ -e ~/.zshrc ]; then
then TIMESTAMP=$(date +%Y-%m-%d_%H-%M-%S)
ZSHRC_SAVE=".zshrc.omz-uninstalled-`date +%Y%m%d%H%M%S`"; ZSHRC_SAVE=~/.zshrc.omz-uninstalled-$TIMESTAMP;
echo "Found ~/.zshrc -- Renaming to ~/${ZSHRC_SAVE}"; echo "Found ~/.zshrc -- Renaming to ${ZSHRC_SAVE}";
mv ~/.zshrc ~/${ZSHRC_SAVE}; mv ~/.zshrc ${ZSHRC_SAVE};
fi fi
mv ~/.zshrc.pre-oh-my-zsh ~/.zshrc; mv "$ZSHRC_ORIG" ~/.zshrc;
source ~/.zshrc; source ~/.zshrc;
else else