tree 30b0498259e81d9850d9e088bd5a961f3ca1c294
parent 5e66757b835f155f7e50931f54c9f6af8af86f75
author Michael Matloob <matloob@golang.org> 1539369498 -0400
committer Michael Matloob <matloob@golang.org> 1539625337 +0000

go/packages: use "=" instead of ":" for special queries

This change updates the language accepted through the arguments
to packages.Load to make it more consistent. There are now two layers.
A pattern containing an "=" is considered to be a special query, and the
part of the pattern up to the first "=" is considered the query type. All
other patterns are to be interpreted as the build system interprets it.
For now two special queries exist. file= has the behavior that contains:
did: finding packages containing the given file. The query type pattern=
is used to pass through a pattern to be interpreted by the build system.
pattern= is a type of escaping to allow passing through patterns that
contain an "=" to be interpreted by the underlying buildsystem. To allow
for new query types to be introduced, packages.Load will report an
error if the qury type is not understood. We expect name= to be added in
an  upcoming change.

"contains:" changes to "file=". A new

Change-Id: I1b208d1c998c67d5556cdc872d7694273cedb7e4
Reviewed-on: https://go-review.googlesource.com/c/141681
Reviewed-by: Alan Donovan <adonovan@google.com>