Powerline Exectime

A Powerline segment to show the execution time of the last command. If configured properly, the startup time of the shell can be measured as well.

Installation

You don't need to install this package system-wide as it is enough to install it as a user package. Thus, do not use sudo in the following commands unless you are aware of what you are doing.

pip install .

If pip complains that "This environment is externally managed," you may use virtual-env or try this (again, do not use sudo unless you are aware of what you are doing):

pip install --user --break-system-packages .

After installation, restart the Powerline daemon (I assume that your init system is systemd):

systemctl --user restart powerline-daemon.service

Configuration

Shell

Bash

In ~/.bashrc, add the following line RIGHT AFTER the line that sources powerline.sh:

source /path/to/powerline-exectime/bindings/bash/powerline-exectime.sh

To measure the startup time of Bash, add the following line at the beginning of ~/.bashrc:

_POWERLINE_EXECTIME_TIMER_START="${EPOCHREALTIME/./}"

If ~/.bashrc starts with the following lines, the above line should be placed RIGHT AFTER them:

case $- in
    *i*) ;;
      *) return;;
esac
# ==== INSERT _POWERLINE_EXECTIME_TIMER_START="$(date +%s%N)" HERE
# ==== DO NOT source powerline.sh or powerline-exectime.sh BEFORE THIS LINE ====

If you do all these things correctly, ~/.bashrc should look like this:

# something or nothing
case $- in
    *i*) ;;
      *) return;;
esac
_POWERLINE_EXECTIME_TIMER_START="${EPOCHREALTIME/./}"
# something or nothing
source /usr/share/powerline/bindings/bash/powerline.sh
source /path/to/powerline-exectime/bindings/bash/powerline-exectime.sh
# something or nothing

Other Shells

In theory, powerline-exectime should work with other shells as well. However, appropriate bindings are not provided yet. See TODO for more information.

Segment

In ~/.config/powerline/themes/shell/default.json, add the powerline_exectime.exectime segment. If the former file does not exist, copy /usr/share/powerline/config_files/themes/shell/default.json before adding the segment.

{
  "function": "powerline_exectime.exectime",
  "args": {
    "threshold": 0.0,
    "significant_figures": 3,
    "max_parts": 2,
    "gradient_range_low": 0.5,
    "gradient_range_high": 30.0,
    "highlight_groups": ["exectime_gradient"]
  },
  "priority": 30
}

Colorschemes

In ~/.config/powerline/colorschemes/default.json, add powerline-exectime-specific colorschemes (refer to colorschemes/default.json). If the former file does not exist, just copy the latter one.

TODO

Feel free to open an issue or a pull request if you have any idea.

• Publish to PyPI
• Add bindings for other shells
• Make the segment more configurable
• Make the segment a part of upstream (Powerline)