- add `run!` method which raises if command does not succeed
- use `run!` when the command we are running must succeed for things to
move forward. this should help produce clearer error messages in
failure scenarios.
- move caveats earlier in the install process so reports can be made
about potential failures
- remove the destination tree on cask install failure, so the cask will
not be considered installed
= New Concept: Cask::Artifact
An Artifact is a file in an extacted container for which homebrew-cask
should take some sort of action on install/uninstall.
== Current artifacts:
- App: link/unlink to ~/Applications
- Pkg: install/uninstall (with sudo)
- Prefpane: link/unlink to ~/Library/PreferencePanes
= New Feature: Preference Pane Handling
Specifying `prefpane 'MyApp.prefPane'` in a Cask causes it to be linked
on install to the correct location for it to show up in System
Preferences.
refs #69
= Removed Commands: linkapps/unlinkapps
These were old and mostly unused and don't really make much sense when
linking/unlinking happens automatically in the install process.
= Changed Behavior: stricter relative pathname requirement
With this refactor, we remove the fuzzy searching for a file in an
extracted container when that file was referenced from `link`
or `install`. There may be some casks that need to be updated due to
this change.
- re-added a lost nil guard on `Dmg` containers
- `FakeSystemCommand` was still returning an array of split lines
instead of a string, even though its real counterpart switched to
string when install/uninstall landed
- flushed out an alfred cli bug
- moved plist parsing down to SystemCommand layer
`Cask::Installer` was already much too complex, so I took this
opportunity to throw a `Cask::Container` abstraction around the
extraction part of the package install step.
It goes like this: a Cask's URL points to a Container of some sort. The
containers we currently support are: dmg, zip, tar, and (new) naked.
Naked refers to a raw file that just needs to be copied in place. This
currently just means a pkg file, but in the future it may expand.
A Container knows how to do two things: identify a path as being its
type (`Container.me?`) and extracting the contents of its container to
the proper destination for a Cask (`Container#extract`).
The first Cask we have that supports the naked pkg type is
`heroku-toolbelt`. (Thanks to @sheerun for the Cask definition.)
Other miscellania batched in with this refactor:
- switched to an explicit require strategy rather than globbing
- `Cask::Installer` is instantiated now to match its interface with
other similar collaorators
- simplified zip and tar identification to shorter strings rather than
exact matches of full `file -Izb` output
- `Cask::SystemCommand` gets explicit output redirection options
- many rogue backticks replaced to properly use `SystemCommand`
- fixed misnamed test file `link_checker_spec.rb`
- remove some extraneous `after` clauses in tests; leaning more on
`test/support/cleanup.rb` to uninstall for us
- pkg uninstall `:files` gets a `-rf` to support removing dirs
refs #839 and #1043
