98 lines
2.5 KiB
Markdown
98 lines
2.5 KiB
Markdown
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title = "Ideas from my Development Setup: Always Tmux"
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date = "2020-09-30"
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author = "Ceda EI"
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tags = ["tmux", "development"]
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keywords = ["tmux", "development"]
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description = "Use tmux at all times in my dev setup"
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showFullContent = false
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Back when I first learnt tmux, I realized it was a really valuable tool. Soon
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afterwards, I found myself in need of wanting to make a split only to find out
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I wasn't in tmux. This would lead to:
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- Killing the running process.
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- Starting tmux.
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- Restarting the previous process.
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In pursuit of an ideal solution, I added a tiny script in my scripts directory
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which was called by my bashrc.
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## Current Workflow
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My current workflow simply starts by opening the terminal. Instead of the bash
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prompt, I am greeted by this.
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```
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Choose the terminal to attach:
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1 - 12: 3 windows (created Wed Sep 30 14:26:37 2020) (attached)
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2 - tana: 3 windows (created Wed Sep 30 18:17:24 2020) (attached)
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3 - userbot: 1 windows (created Tue Sep 29 18:37:19 2020)
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4 - ytc: 1 windows (created Tue Sep 29 18:37:19 2020)
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Create a new session by entering a name for it
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```
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At this point, I either
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- enter a number (in this case from 1 to 4) to connect to an existing session.
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- enter a name to create a named tmux session.
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- hit enter (or C-D) to create an unnamed session (tmux will name it
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sequentially).
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- type nil and hit enter to drop to shell without starting tmux
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## Implementation
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In my `.bashrc`, live these lines.
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```bash
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if [[ ! -v TMUX && $TERM_PROGRAM != "vscode" ]]; then
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tmux_chooser && exit
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fi
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```
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Although I use vim as my sole editor, I needed to demo something in VSCode and
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for that case I have added an exception so that the script does not run the
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`tmux_chooser` in VSCode's integrated terminal.
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Here is the source of `tmux_chooser` called above.
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```bash
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#!/usr/bin/bash
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# shellcheck disable=SC2207
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# Doesn't let you press Ctrl-C
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function ctrl_c() {
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echo -e "\renter nil to drop to normal prompt"
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}
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trap ctrl_c SIGINT
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no_of_terminals=$(tmux list-sessions | wc -l)
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IFS=$'\n'
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output=($(tmux list-sessions))
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output_names=($(tmux list-sessions -F\#S))
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k=1
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echo "Choose the terminal to attach: "
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for i in "${output[@]}"; do
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echo "$k - $i"
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((k++))
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done
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echo
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echo "Create a new session by entering a name for it"
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read -r input
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if [[ $input == "" ]]; then
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tmux new-session
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elif [[ $input == 'nil' ]]; then
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exit 1
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elif [[ $input =~ ^[0-9]+$ ]] && [[ $input -le $no_of_terminals ]]; then
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terminal_name="${output_names[input - 1]}"
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tmux attach -t "$terminal_name"
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else
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tmux new-session -s "$input"
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fi
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exit 0
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```
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