Converting macports to homebrew

Homebrew is the way of the future..

1. Save list of installed ports
2. Uninstall macports
3. Install Homebrew
4. Install old ports using brew

1. Save list of installed ports
----------------------------
1. port installed > ports_installed.txt
2. mate ports_installed.txt
  Delete top line "The following..."
  Select All (CMD-A) 
  Indent all one tab left (Alt-Shift-Tab) 
  Replace all txt after @ on each line
   - CMD-F
   - Find: @.*
   - Replace:
   - Check regular expression
   - Click "Replace all"
  Save file as ports_installed_clean.txt
3. Clean up to only have unique entries (no duplicates!)
  $ sort ports_installed_clean.txt | uniq -u > unique_ports_installed.txt

2. Uninstall Macports
---------------------
http://guide.macports.org/chunked/installing.macports.uninstalling.html

$ sudo port -f uninstall installed
$ sudo rm -rf \
    /opt/local \
    /Applications/DarwinPorts \
    /Applications/MacPorts \
    /Library/LaunchDaemons/org.macports.* \
    /Library/Receipts/DarwinPorts*.pkg \
    /Library/Receipts/MacPorts*.pkg \
    /Library/StartupItems/DarwinPortsStartup \
    /Library/Tcl/darwinports1.0 \
    /Library/Tcl/macports1.0 \
    ~/.macports

3. Install Homebrew
-------------------
  Run mislav's Gist recipe!

4. Create script to run through unique_ports_installed.txt and call for each port_name (each line) 
  $ brew install [port_name]  

PS: Not sure how well this would work in practice!?

http://wiki.github.com/mxcl/homebrew/the-brew-command

List of available brews
$ brew search

$ brew search > all_brews.txt

Search for brew equivalent of port
$ brew search [port_name]

5. Identify matching brews for ports
You could create a small script (ruby?) to run through list of brews and see if there is a port with the same name, then add the match to a port_brews.txt file.

Then run through port_brews.txt and install each brew.

Then we just need a mapper file to map those brews with a different name than the port(s) it replaces. Anyone?


  

BTW small bug here uniq -u removes anything that is duplicated, so if you have aom twice, for example, then it won't appear in the output at all.