bundlewrap/scripts/update-ssh-client-config

#!/bin/bash

# Intended to be used as a git hook for post-commit, post-merge, post-checkout
#
# Remember to include the generated ssh config on top of ~/.ssh/config:
#   Include ~/.ssh/bwnode

(
    tmpfile=$(mktemp -p ~/.ssh/)
    echo "# generated $(date)" >"$tmpfile"

    BW_TABLE_STYLE=grep bw nodes -a hostname -- "lambda:not node.dummy" | \
    while read node addr
    do
        if [[ -n "$BW_SSH_HOOK_EXTRA_LINE" ]]
        then
            echo "Host $addr" >>"$tmpfile"
            echo "$BW_SSH_HOOK_EXTRA_LINE" >>"$tmpfile"
            echo "" >>"$tmpfile"
        fi
        echo "Host $node" >>"$tmpfile"
        echo "HostName $addr" >>"$tmpfile"
        if [[ -n "$BW_SSH_HOOK_EXTRA_LINE" ]]
        then
            echo "$BW_SSH_HOOK_EXTRA_LINE" >>"$tmpfile"
        fi
        echo "" >>"$tmpfile"
    done

    mv "$tmpfile" ~/.ssh/config.d/bwnodes
) &