Trivial .exe target (Windows SFX installers)

• fpm issue: #810
• orig gist: fpm…package…exe.rb

Creates basic self-extracting zips, with an Installer-like look and feel, courtesy of FreeExtractor. Its makesfx.exe runs well under wine/Linux; and neatly maps fpm package information.

Obviously its use regularily requires

• Actually being able to build for win32.
• Crafting a windows-specific start.cmd wrapper etc.
• and packaging files relocatable without absolute paths (no --prefix)
• so they can end up in $programfiles$/appxy.

The xpm version doesn't require the middleman (wine makesfx.exe) anymore. The SFX stub is built-in. The final "installer" .exe is just a concatenation of:

• the SFX binary,

  MZP@C@...
  

• an INI-style description block (max 1024 byte),

  [FE]
  Name='package'
  ZipSize=20524
  Exec=
  DefaultPath=C:/App/
  Intro="...\n"
  URL=
  Author=
  

  Moreover it includes a customized [FPM] ini section now, which retains a few more fpm packaging parameters. This allows the resulting installer data to be imported again (fpm -s exe -t deb). The field mapping still needs some fine tuning though.

• and the plain ZIP archive appended.

  PKCDT@B@...
  

• And the icon somewhere in between. Can be overwritten, but requires a 2236-byte sized .ico file.