Parses raw package manager CLI output into a normalized dependency graph with PURLs.

Takes the output bytes from a manager's resolve command (e.g. npm ls --json, go mod graph, uv tree) and returns a structured Result with the dependency tree and PURL for each package.

import "github.com/git-pkgs/resolve"

output, _ := exec.Command("npm", "ls", "--depth", "Infinity", "--json", "--long").Output()

result, err := resolve.Parse("npm", output)
// result.Manager   == "npm"
// result.Ecosystem == "npm"
// result.Direct    == []*Dep{ {PURL: "pkg:npm/express@4.18.2", Name: "express", Version: "4.18.2", Deps: [...]}, ... }

Parse is the only entry point. It dispatches to the correct parser based on the manager name and returns ErrUnsupportedManager for unknown managers.

Each Dep includes the ecosystem-native package name, resolved version, a PURL string, and a Deps slice for transitive dependencies. Deps is nil for managers that only produce flat lists (pip, conda, bundler, helm, etc.) and non-nil for managers that provide tree structure.