Alex Reece
12 years ago
parent
171b41d3c4
commit
856b3ff614
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Last Command
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============
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Provides information about the last command run.
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Exported variables
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------------------
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- `last_command`: The string of the last command.
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- `last_command_time`: The execution time (in floating point seconds) of the
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last command.
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- `last_command_status`: The exit status of the last command.
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Exported functions
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------------------
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- `time_to_human`: Prints a floating point time duration in seconds.
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Authors
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-------
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*The authors of this module should be contacted via the [issue tracker][1].*
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- [Alex Reece](https://github.com/awreece)
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[1]: https://github.com/awreece/prezto/issues
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#
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# Pretty prints a time in human readable format.
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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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# Converts a floating point time duration in seconds to a human readable string.
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function time_to_human {
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seconds=$1
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if (( seconds < 10 )); then
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printf "%6.3fs" $seconds
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elif (( seconds < 60 )); then
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printf "%6.3fs" $seconds
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elif (( seconds < (60*60) )); then
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printf "%6.3fm" $(( seconds / 60 ))
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elif (( seconds < (60*60*24) )); then
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printf "%6.3fh" $(( seconds / (60*60) ))
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elif (( seconds < (60*60*24*30) )); then
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printf "%6.3fd" $(( seconds / (60*60*24) ))
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elif (( seconds < (60*60*24*30*12) )); then
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printf "%6.3fm" $(( seconds / (60*60*24*30) ))
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else
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printf "%6.3fy" $(( seconds / (60*60*24*30*12) ))
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fi
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}
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#
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# Exports information about the last command.
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#
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# Authors:
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# Alex Reece <awreece@gmail.com>
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#
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# Exported values.
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last_command=''
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last_command_status=0
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last_command_time=0.0
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# Not exported.
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last_command_start_time=invalid
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zmodload zsh/datetime # For EPOCHREALTIME.
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function last_command_precmd {
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exit_status=$? # TODO(awreece) What happens if another precmd runs first?
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# We do these 'invalid' shenanigans because zsh executes precmd but not
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# preexec if an empty line is entered.
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if [[ $last_command_start_time != 'invalid' ]]; then
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last_command_status=$exit_status
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last_command_time=$((EPOCHREALTIME - last_command_start_time))
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last_command_start_time='invalid'
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fi
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}
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function last_command_preexec {
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last_command_start_time=$EPOCHREALTIME
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last_command=$1
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}
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autoload -Uz add-zsh-hook
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add-zsh-hook precmd last_command_precmd
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add-zsh-hook preexec last_command_preexec
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Last Command
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============
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Notifies if the command completes and terminal isn't the foreground window.
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Caveats
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-------
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Currently only works on Mac OSX with `terminal-notifier`. At some point, I
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will add support for other notification mechanisms.
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Authors
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-------
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*The authors of this module should be contacted via the [issue tracker][1].*
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- [Alex Reece](https://github.com/awreece)
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[1]: https://github.com/awreece/prezto/issues
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# Notifies if the last command completes and terminal window is not in
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# foreground.
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#
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# Authors:
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# Alex Reece <awreece@gmail.com>
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#
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pmodload 'last_command'
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if [[ "$OSTYPE" == darwin* ]]; then
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terminal_window_id=$(osascript -e 'tell application "Terminal" to ¬' \
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-e ' get id of front window')
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fi
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# Returns true if the current window has focus.
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# Warning: Currently only implementd on mac.
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# Assume $terminal_window_id is the osascript id of the current window.
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#
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# TODO(awreece) Add support for tabs.
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function window_is_focused {
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if [[ "$OSTYPE" == darwin* ]]; then
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focus_window_id=$(osascript -e 'tell application "System Events" to ¬' \
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-e ' set focus_app_name to ¬' \
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-e ' name of first application process ¬' \
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-e ' whose frontmost is true' \
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-e 'tell application focus_app_name to ¬' \
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-e ' get id of front window')
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fi
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# On a not mac, this will always return true since focus_id and
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# terminal_window_id are both undefined so empty strings.
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[[ $focus_window_id == $terminal_window_id ]]
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}
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# Sends a notification that the last command terminated.
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# Warning: currently only implemented for mac.
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function last_command_notify {
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message=$(printf "Command \"%s\" finished (%d) after %s." \
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$last_command \
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$last_command_status \
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$(time_to_human $last_command_time))
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# TODO(awreece) Add support for user defined callback.
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if [[ "$OSTYPE" == darwin* ]]; then
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callback="osascript -e 'tell application \"Terminal\"' \
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-e 'activate' \
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-e 'set index of window id $terminal_window_id to 1' \
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-e 'end tell'"
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terminal-notifier -message $message -execute $callback >/dev/null
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fi
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}
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function notify_precmd {
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if ! window_is_focused; then
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last_command_notify
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fi
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}
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autoload -Uz add-zsh-hook
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add-zsh-hook precmd notify_precmd
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