The array of options that is passed to the spawned build process is a
combination of the current ARGV, options passed in by a dependent
formula, and an existing install receipt. The objects that are
interacting here each expect the resulting collection to have certain
properties, and the expectations are not consistent.
Clear up this confusing mess by only dealing with Options collections.
This keeps our representation of options uniform across the codebase.
We can remove BuildOptions dependency on HomebrewArgvExtension, which
allows us to pass any Array-like collection to Tab.create. The only
other site inside of FormulaInstaller that uses the array is the #exec
call, and there it is splatted and thus we can substitute our Options
collection there as well.
Currently we handle options in several ways, and it is hard to remember
what code needs an option string ("--foo"), what needs only the name
("foo") and what needs an Option object.
Now that Option objects can act as strings and be converted to JSON, we
can start using them instead of passing around strings between Formula
objects, Tab objects, and ARGV-style arrays.
The Options class is a special collection that can be queried for the
inclusion of options in any form: '--foo', 'foo', or Option.new("foo").
Simplify access to the different forms of a formula's build options by
making options into real objects rather than strings, and expose both
the 'name' and 'flag' form.
Doing so was the result of a quick hack to fix the "deps installed as
upgrades don't get linked" bug, but it was a mistake. Instead, always
return the LinkedKegs entry as a Pathname object, and let callers be
responsible for checking that it exists.
Signed-off-by: Jack Nagel <jacknagel@gmail.com>
Passing Formula.factory the name of a keg that belongs to a non-core
formula will cause an error to be raised; we don't really care, so just
fake a totally empty install receipt in this case.
Signed-off-by: Jack Nagel <jacknagel@gmail.com>
This will be useful in places where we need information about things
other than the currently linked keg, such as `brew info`.
Signed-off-by: Jack Nagel <jacknagel@gmail.com>
FormulaInstaller now loads the install recipt of a previous install and appends
the `used_options` to ARGV before forking to build. This means `brew upgrade`
will "remember" which options were invoked for the last install and re-use
them.
FixesHomebrew/homebrew#5250.
