Refactor to support multiple OS's

Signed-off-by: Marcus Noble <github@marcusnoble.co.uk>

home/.dotfiles/1-zsh

@@ -0,0 +1,62 @@
+export ZSH="$HOME/.oh-my-zsh"
+
+plugins=(
+  zsh-syntax-highlighting
+)
+autoload -U compinit
+
+# Use this setting if you want to disable marking untracked files under VCS as dirty.
+# This makes repository status checks for large repositories much, much faster.
+DISABLE_UNTRACKED_FILES_DIRTY="true"
+SHOW_AWS_PROMPT=false
+COMPLETION_WAITING_DOTS=true
+
+source $ZSH/oh-my-zsh.sh
+zstyle ':omz:update' mode reminder
+
+source `brew --prefix switch`/switch.sh
+
+
+# History
+HISTFILE="$HOME/.zsh_history"
+HISTIGNORE="&:exit:reset:clear:zh"
+setopt append_history
+setopt hist_ignore_space
+setopt HIST_IGNORE_DUPS
+setopt sharehistory
+setopt INC_APPEND_HISTORY
+setopt HIST_REDUCE_BLANKS
+
+# Options
+setopt autocd
+autoload -U add-zsh-hook
+
+
+DISABLE_AUTO_TITLE="true"
+
+# Override auto-title when static titles are desired ($ title My new title)
+title() { export TITLE_OVERRIDDEN=1; echo -en "\e]0;$*\a"}
+# Turn off static titles ($ autotitle)
+autotitle() { export TITLE_OVERRIDDEN=0 }; autotitle
+# Condition checking if title is overridden
+overridden() { [[ $TITLE_OVERRIDDEN == 1 ]]; }
+
+# Show cwd when shell prompts for input.
+precmd() {
+  if overridden; then return; fi
+  pwd=$(pwd) # Store full path as variable
+  cwd=${pwd##*/} # Extract current working dir only
+  print -Pn "\e]0;$cwd\a" # Replace with $pwd to show full path
+}
+
+# Prepend command (w/o arguments) to cwd while waiting for command to complete.
+preexec() {
+  if overridden; then return; fi
+  printf "\033]0;%s\a" "${1%% *} | $cwd" # Omit construct from $1 to show args
+}
+
+
+# Giant Swarm specific
+which opsctl &>/dev/null && opsctl completion zsh > /usr/local/share/zsh/site-functions/_opsctl
+which gsctl &>/dev/null && gsctl completion zsh --stdout > /usr/local/share/zsh/site-functions/_gsctl
+which devctl &>/dev/null && devctl completion zsh > /usr/local/share/zsh/site-functions/_devctl