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41 lines
1.0 KiB
41 lines
1.0 KiB
#!/bin/sh |
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# bg_log: a script to output a message from a background process, while taking |
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# into account the user's current input and preserving it. |
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# |
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# Cast this spell to send a message from a background process to the terminal, |
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# without interrupting or overwriting the user's input. |
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# todo: refactor this to use the cursor file |
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bg_log() { |
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# Save the current cursor position |
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printf '\033[s' |
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# Calculate the number of lines used by the user's input |
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lines=$(current_input_lines) |
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# Move the cursor up the number of lines used by the user's input |
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printf '\033[%dA' "$lines" |
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# Clear the current line |
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printf '\033[2K' |
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# Output the message |
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printf '%s\n' "$@" |
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# Clear the current line |
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printf '\033[2K' |
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# Move the cursor down the number of lines used by the user's input |
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printf '\033[%dB' "$lines" |
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# Restore the cursor position |
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printf '\033[u' |
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} |
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# Check if the script is being executed or sourced |
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if [ "$0" = "$BASH_SOURCE" ]; then |
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# Script is being executed, call the bg_log function to output a message |
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bg_log $1 |
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fi
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