2 Commits (eecbfbf2cccedfb581469ee63599c4b4abc5c60f)

Author	SHA1	Message	Date
Martin Atkins	84df5562f2	moduleaddrs: Terraform now owns module source address normalization ... We've been gradually chipping away at how much we use go-getter for source packages, because it's generally been a bit of a nightmare and sharing it with other codebases means that any time someone wants to change something we end up needing to find some way to prevent it breaking Terraform's compatibility promises. Here we make one further step: Terraform owns the "detectors" idea that deals with source address normalization, and now always produces fully-qualified addresses for go-getter to chew on only for the getting and decompressing steps. Retaining go-getter for the actual getting part is helpful because we can then benefit from security fixes upstream, but Terraform owning the first layer of parsing means that we can fix in place the definition of what "module source address" syntax means, and thus we can avoid having everything in this codebase indirectly depend on go-getter just because it wants to parse module source addresses. Now only the module installer actually depends indirectly on go-getter, which finally disconnects go-getter's subtree from all of the remote state backend dependency graphs.	2 years ago
Martin Atkins	5d87e32eb9	moduleaddrs: Split module source address parsing from package addrs ... Our package addrs ends up getting imported from just about ever other package in Terraform, because it contains the types we use to talk about various different kinds of objects. Therefore we typically try to keep its transitive dependency graph relatively small, because anything it depends on becomes an indirect dependency of nearly everything else. A while back we moved the module source address models into package addrs, which also brought with them the code for parsing strings to produce those addresses. Unfortunately, remote module source addresses are defined using the external dependency go-getter, which is pretty heavy itself and also brings with it numerous other external dependencies such as the AWS SDK, the Google Cloud Platform SDK, etc. Since only relatively few packages actually need to _parse_ source addresses -- with most either not caring about them at all or only consuming addresses that were already parsed by someone else -- we'll move the parser functions into their own package, while keeping the resulting address types in package addrs. This does still retain the package addrs dependency on external module github.com/hashicorp/terraform-registry-address, which is not ideal but that one at least has a relatively shallow dependency subgraph, so there's not so much urgency to tidy that one.	2 years ago