installer: extract most code into functions

This commit is contained in:
Marc Cornellà 2016-05-29 08:15:40 +02:00
parent f94443925d
commit a7bd1f99ae

View file

@ -17,14 +17,16 @@ command_exists() {
command -v "$@" >/dev/null 2>&1
}
main() {
# Use colors, but only if connected to a terminal, and that terminal
# supports them.
# Set up color sequences
setup_color() {
if command_exists tput; then
ncolors=$(tput colors)
else
ncolors=0
fi
if [ -t 1 ] && [ -n "$ncolors" ] && [ "$ncolors" -ge 8 ]; then
# Only use colors if connected to a terminal that supports them
if [ -t 1 ] && [ $ncolors -ge 8 ]; then
RED="$(tput setaf 1)"
GREEN="$(tput setaf 2)"
YELLOW="$(tput setaf 3)"
@ -39,20 +41,9 @@ main() {
BOLD=""
NORMAL=""
fi
}
if ! command_exists zsh; then
echo "${YELLOW}Zsh is not installed!${NORMAL} Please install zsh first!"
exit 1
fi
if [ -d "$ZSH" ]; then
cat <<-EOF
${YELLOW}You already have Oh My Zsh installed.${NORMAL}
You'll need to remove $ZSH if you want to re-install.
EOF
exit 1
fi
setup_ohmyzsh() {
# Prevent the cloned repository from having insecure permissions. Failing to do
# so causes compinit() calls to fail with "command not found: compdef" errors
# for users with insecure umasks (e.g., "002", allowing group writability). Note
@ -79,11 +70,13 @@ main() {
echo "Error: git clone of oh-my-zsh repo failed"
exit 1
}
}
setup_zshrc() {
echo "${BLUE}Looking for an existing zsh config...${NORMAL}"
if [ -f ~/.zshrc ] || [ -h ~/.zshrc ]; then
echo "${YELLOW}Found ~/.zshrc.${GREEN} Backing up to ~/.zshrc.pre-oh-my-zsh.${NORMAL}"
mv ~/.zshrc ~/.zshrc.pre-oh-my-zsh;
mv ~/.zshrc ~/.zshrc.pre-oh-my-zsh
fi
echo "${BLUE}Using the Oh My Zsh template file and adding it to ~/.zshrc.${NORMAL}"
@ -93,7 +86,9 @@ main() {
export ZSH=\"$ZSH\"
" ~/.zshrc > ~/.zshrc-omztemp
mv -f ~/.zshrc-omztemp ~/.zshrc
}
setup_shell() {
# If this user's login shell is not already "zsh", attempt to switch.
TEST_CURRENT_SHELL=$(basename "$SHELL")
if [ "$TEST_CURRENT_SHELL" != "zsh" ]; then
@ -109,6 +104,27 @@ export ZSH=\"$ZSH\"
EOF
fi
fi
}
main() {
setup_color
if ! command_exists zsh; then
echo "${YELLOW}Zsh is not installed.${NORMAL} Please install zsh first."
exit 1
fi
if [ -d "$ZSH" ]; then
cat <<-EOF
${YELLOW}You already have Oh My Zsh installed.${NORMAL}
You'll need to remove $ZSH if you want to reinstall.
EOF
exit 1
fi
setup_ohmyzsh
setup_zshrc
setup_shell
printf "$GREEN"
cat <<-'EOF'