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February 5, 2016 14:28
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SSHs to a set of servers and executes a certain command once logged in
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| on run argv | |
| -- How to execute: | |
| -- osascript iTerm2-Multi-SSH.scpt development.mycluster htop | |
| -- accepts two arguments: | |
| -- 1. common part of the server names. eg. development.mycluster | |
| -- 2. the command to execute once logged into the servers | |
| set findhostnames to "less ~/.ssh/config | sed -n \"s|^Host \\(" & item 1 of argv & ".*\\)|\\1|gp\" | sed \"s/,$//g\"" | |
| set serverList to paragraphs of (do shell script findhostnames) | |
| -- Print help if no servers are given | |
| if (count serverList) = 0 then | |
| log ("no servers found") | |
| return | |
| end if | |
| set rightArrow to ASCII character 29 | |
| set numServers to count serverList | |
| set numHorizontal to (round (numServers ^ 0.5) rounding up) | |
| set createdPanels to 1 | |
| tell application "iTerm 2" | |
| activate | |
| select first window | |
| tell current window | |
| set newTab to (create tab with profile "Default") | |
| tell newTab | |
| tell current session | |
| -- create the horizontal panels | |
| repeat numHorizontal - 1 times | |
| tell application "System Events" to keystroke "d" using {command down} | |
| set createdPanels to createdPanels + 1 | |
| end repeat | |
| set splitColumns to 0 | |
| -- split each of the panels vertically | |
| repeat createdPanels times | |
| -- re-evaluate number of vertical panels we need | |
| set numVertical to (round ((numServers - createdPanels) / (numHorizontal - splitColumns)) rounding up) + 1 | |
| tell application "System Events" to keystroke rightArrow using {option down, command down} | |
| repeat numVertical - 1 times | |
| if createdPanels is less than numServers then | |
| tell application "System Events" to keystroke "d" using {command down, shift down} | |
| set createdPanels to createdPanels + 1 | |
| end if | |
| end repeat | |
| set splitColumns to splitColumns + 1 | |
| end repeat | |
| end tell | |
| delay 1 | |
| -- open ssh sessions-- | |
| repeat with loopIndex from 1 to numServers | |
| set currentServer to item loopIndex of serverList | |
| tell item loopIndex of sessions to write text "ssh " & currentServer | |
| tell item loopIndex of sessions to write text (item 2 of argv) | |
| end repeat | |
| end tell | |
| end tell | |
| end tell | |
| end run | |
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