TLDR
Working with localhost and multiple repos can be tedious - Apple has a way to automate opening multiple terminal windows and tabs, navigating to the directories that you need, and starting up those services. This is a tutorial to show you how to set up that process.
- TLDR
- Why Automate?
- came in for the save!
- Start with the Basics
- Creating Multiple Sessions
- Adding to the Script
- Create a New Tab
- Miscellaneous Settings
- Wrapping Up
Why Automate?
For me, automation is just about speeding up the process. An example of my work flow looks like:
- Opening up iTerm
- Navigating to my frontend directory
- start the frontend server
- Split the terminal vertically, navigate the the frontend directory
- start webpack
- Open a new tab, navigate to the reporting directory
- start the reporting service
- Open a new tab, navigate to the engine directory
- start the engine service (this is a Docker service, with the help of aliases, has been reduced to smaller commands)
It may not seem like a whole lot, but it becomes a pain whenever I have to restart my computer and have to restart each of those services needed to run the application. When I discovered that it could be automated, it changed everything.
Applescript came in for the save!
Start with the Basics
Let's start with a simple script to get the hang of the syntax.
- Create a file
hello_world.scpt
with the content below:
#!/usr/bin/osascript
tell application "iTerm2"
tell current session of current tab of current window
write text "echo 'hello world!'"
end tell
end tell
- From the directory you created
hello_world.scpt
, Run the script like this:osascript hello_world.scpt
. You should see:
Why does it appear twice? Echoing added the command to the terminal history. If you hit up in the terminal, echo 'hello world!
will appear as the last command.
If you hit up again, you'll get your first command, osascript hello_world.scpt
.
Creating Multiple Sessions
Now for the workflow automation.
- Create a new script file called
create_sessions.scpt
with the content below:
#!/usr/bin/osascript
tell application "iTerm2"
set serverSession to current session of current window
tell serverSession
set webpackSession to (split vertically with default profile)
end tell
end tell
- From the directory you created
create_sessions.scpt
, Run the script like this:osascript create_sessions.scpt
. You should see the terminal window spilt vertically.
What is happening?
Let's break it down:
-
tell application "iTerm2"
: which application we're sending commands to. In this case, iTerm2 (this can also be iTerm). -
set serverSession to current session of current window
: is creating a new variable name for the current active window. In this case,serverSession
is being assigned to the current window. I usedserverSession
since this will be the window that I used to run my server.set <NAME> to current session of current window
-
set webpackSession to (split vertically with default profile)
: sets a new variablewebpackSession
, and splits the window vertically (vertically
can be swapped forhorizontally
to match your needs). -
end tell
: "closing tag" for the function
Adding to the Script
#!/usr/bin/osascript
tell application "iTerm2"
set serverSession to current session of current window
tell serverSession
write text "cdkwhub"
set webpackSession to (split vertically with default profile)
end tell
tell webpackSession
write text "cdkwhub"
end tell
end tell
tell <SESSION> to write text "<COMMANDS>"
Here's where the automation fun happens. With each write text
, we can pass in the commands that we need. For me, cdkwhub
is an alias that cd
's into my codebase directory.
In the next tell block, we reference the new tab that was created and write a command to that window.
Create a New Tab
Continuing to add to the script,
tell current window
create tab with default profile
set tab2 to current session
end tell
tell tab2
write text "put a command here"
end tell
-
tell current window
: with the vertical tab selected-
create tab with default profile
: iTerm will create a new tab
-
-
set tab2 to current session
: creates a new variable calledtab2
and sets it to the new session -
tell tab2
: in the new tab, it writes text
Miscellaneous Settings
Adding Tab Names
One thing you can do to make your tabs more organized is to set a tab to them. To set a name, use set name to "name"
. You can do that like so:
...
tell serverSession
set name to "SERVER" # Add this line
write text "cdkwhub"
set webpackSession to (split vertically with default profile)
end tell
...
Inside of each tell statement you can set a name.
Open the Terminal in Fullscreen
Another thing you can automate with this script is having it open your window in fullscreen. You can do that by adding the following to the top of the script:
...
tell application "iTerm2"
# Open window in full screen
tell application "System Events"
keystroke "f" using {control down, command down}
end tell
...
Add as a .zsh
alias
You can really put your automation in overdrive by creating an alias to run your new script. Using an alias can simplify your command into one single word. An example of my use looks like this:
export SCRATCH_DIR=~/codebase/scratch
alias cdscratch='cd $SCRATCH_DIR';
alias startrepos='cdscratch; osascript create_sessions.scpt'
- Create a variable to the directory that has my script
- Create an alias that navigates into that directory and finally, the whole thing
- Create an alias that uses the
cd
ing alias, and then add theosascript
command followed by the name of the file
When you open a terminal window, entering startrepos
followed by enter will fire off the automation script.
Wrapping Up
Hopefully this helps you save some time. You can also use the Script Editor application to write the script and export it as an executable application, as well as other miscellaneous things. You can also use it to automate other aspects of your day to day processes.
Helpful Likes
- Final script
- Applescript documentation
- iTerm2 Applescript documentation
- Creating
zsh
aliases
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