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#
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# A simple theme that displays relevant, contextual information.
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#
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# Authors:
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# Alex Reece <awreece@gmail.com>
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#
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# Screenshots:
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# http://codearcana.com/posts/2013/11/06/my-zsh-theme.html
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# http://codearcana.com/images/zsh_theme.png
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#
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function prompt_awreece_help {
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cat <<EOH
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Prompt will look like:
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#############################################################################
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+----------- Last part in path to current working directory.
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| +-- A '#' if root shell, colored green if the last command was
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| | successful and red otherwise.
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| |
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| | Duration of last command, colored green if last command --+
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| | was successful and red otherwise. |
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| | |
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| | ssh user and hostname -------------------------+ |
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| | (if connected via ssh). | |
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| | | |
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| | Full path to current working --+ | |
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| | directory (if longer than | | |
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| | than 1 segment). | | |
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| | | | |
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| | Number of background jobs --+ | | |
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| | (if any). | | | |
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v v v v v v
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#############################################################################
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Developer% 1& ~/bin/Developer [alex@cmu] 2.001s
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EOH
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}
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function prompt_awreece_setup {
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prompt_opts=(cr percent subst)
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# Load prerequisites.
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pmodload 'last_command'
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# Variables used for prompts.
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local background_job_status='%(1j.%F{yellow}%j&%f .)'
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local full_directory='%(2~.%F{blue}%~%f .)'
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local ssh_host=''
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if prompt_awreece_is_ssh; then
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ssh_host='%F{cyan}[%n@%m]%f '
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fi
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local command_time='%(?.%F{green}.%F{red})$(prompt_awreece_command_time)%f'
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# Define prompts.
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PROMPT='%F{blue}%1~%f%F{magenta}%#%f '
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RPROMPT="${background_job_status}${full_directory}${ssh_host}${command_time}"
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}
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function prompt_awreece_command_time {
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time_to_human $last_command_time
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}
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# Return a zero exit status (true) iff the current shell is controlled via ssh.
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function prompt_awreece_is_ssh {
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# Actually, sudo etc clear a bunch of environment variables, including
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# SSH_CONNECTION, so this doesn't always work. Unfortunately, I don't know
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# the best way to make it work. For now, I'll hide it in a function and I can
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# update it when I figure out a better way later.
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[[ -n $SSH_CONNECTION ]]
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}
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function prompt_awreece_preview {
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local +h PROMPT='%# '
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local +h RPROMPT=''
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# Set a last_command_time to make it interesting.
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local +h last_commmand_time=3.14159
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prompt_preview_theme 'awreece' "$@"
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}
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prompt_awreece_setup "$@"
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