BashBundle

Bundle text files into a single .sh file and extract them by executing it. Or use it as an installer by bundling a setup.sh with all the files it depends on.

🔥 Works also by copy & pasting the bundled code directly into your terminal!

Usage

bash bundle.sh [source directory] [destination file]

Example 1: Bundle files; Extract files

Given we have these files:

bundle-example/message.txt

Free Assange!

bundle-example/url.txt

https://www.freeassange.net

To bundle them into a single .sh file:

bash bundler.sh bundle-example bundle-example.sh

To extract the files into the current directory:

bash bundle-example.sh

Or paste the code directly into your terminal (bash shell), it has the same effect:

# Created with BashBundle v0.1 - https://github.com/mustardamus/bashbundle
cat <<"BASHBUNDLE" > _bb.sh && bash _bb.sh && rm _bb.sh
file="";files=""
while read line; do
  if [[ "$line" == "#EMBED "* ]]; then
    file=${line/\#EMBED /};files="$file $files";continue
  fi
  [[ ! -n "$file" ]] && continue
  if [[ "$line" != "#END"* ]]; then
    echo "${line/\#/}" >> "$file"
  else
    file=""
  fi
done < $0
if [[ -f "setup.sh" ]]; then
  bash setup.sh && rm `echo "$files" | xargs`
fi

#EMBED message.txt
#Free Assange!
#END

#EMBED url.txt
#https://www.freeassange.net
#END
BASHBUNDLE

Example 2: Bundle files; Extract files -> Run setup -> Delete files

If there is a setup.sh along the files, it will be executed after the files are extracted, for example:

setup-example/setup.sh

message=`cat message.txt`
url=$(<url.txt)
echo "$message - $url"

setup-example/message.txt

Free Assange!

setup-example/url.txt

https://www.freeassange.net

Bundle them:

bash bundler.sh setup-example setup-example.sh

To extract the files, run setup.sh and delete all extracted files afterwards:

bash setup-example.sh

This will print:

Free Assange! - https://www.freeassange.net

Copy & paste directly into your terminal (bash shell), it will print the same output. Try it:

# Created with BashBundle v0.1 - https://github.com/mustardamus/bashbundle
cat <<"BASHBUNDLE" > _bb.sh && bash _bb.sh && rm _bb.sh
file="";files=""
while read line; do
  if [[ "$line" == "#EMBED "* ]]; then
    file=${line/\#EMBED /};files="$file $files";continue
  fi
  [[ ! -n "$file" ]] && continue
  if [[ "$line" != "#END"* ]]; then
    echo "${line/\#/}" >> "$file"
  else
    file=""
  fi
done < $0
if [[ -f "setup.sh" ]]; then
  bash setup.sh && rm `echo "$files" | xargs`
fi

#EMBED message.txt
#Free Assange!
#END

#EMBED setup.sh
#message=`cat message.txt`
#url=$(<url.txt)
#echo "$message - $url"
#END

#EMBED url.txt
#https://www.freeassange.net
#END
BASHBUNDLE

But why?

I was looking for the simplest solution to kick off a server setup, you know, update & install packages, install Ansible, run playbook, etc.

You could have a public Git repo somewhere with all the necessary files, then git clone it and execute it, like bash setup.sh. This requires you to 1. Create the repo, 2. Push the code, 3. Install git on server, 4. Clone the repo, 5. Execute. Way too much work. And don't get me started if it's a private repository. :P

You could also do the ye old curl [url] | bash method. If you are in control of where the install script is hosted, it's maybe fine. If someone else hosts the script you make yourself vulnerable, see Friends don’t let friends Curl | Bash. Anyhow, let's say I host the script, I have to 1. Get it online somewhere (thats at least 3 more steps), 2. Maybe install curl or wget, 3. Paste the curl|bash command, 4. Execute. Better, but way more work than necessary :P

I could copy and paste the install script from my machine onto the server, and run it. But what if there are multiple files? I'd still have to get them somehow on the server. So, 1. Open a file on the server 2. Copy and paste the script into it, 3. Save it, 4. Google how to :quit vim, 5. Get all necessary files on the server, 6. Execute. Seemed like a good idea, but is a loooot of work :P

You guessed it, the best way is BashBundle! 1. I bundle all necessary files and my setup.sh installer script, 2. I copy the complete bundled script, 3. I paste it into the server terminal, 4. Win. If you know of a method that is less work, please let me know :)

Testing

bash test.sh

✊ Free Assange!