refactor(@angular/cli): introduce new package manager abstraction #31295
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clydin
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Introduces a new abstraction layer for interacting with JavaScript package managers. This change centralizes all package-manager-specific logic into a single, reliable, and extensible interface. The primary motivation is to standardize package manager interactions for commands like `ng add` and `ng update`. The new system is designed to be highly testable. All side-effectful operations (file system access, command execution) are abstracted behind a `Host` interface, allowing for comprehensive and reliable unit testing in complete isolation. Key features include: - An improved package manager discovery process especially in monorepo scenarios. - A high-level API to install, add, and query packages from a registry. - Methods to fetch full package metadata and specific version manifests. - An `acquireTempPackage` method to support temporary, isolated package installations. This abstraction paves the way for the eventual removal of several direct package dependencies, including `ini`, `@yarnpkg/lockfile`, and `pacote`.
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jkrems
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Introduces a new abstraction layer for interacting with JavaScript package managers. This change centralizes all package-manager-specific logic into a single, reliable, and extensible interface. The primary motivation is to standardize package manager interactions for commands like
ng addandng update.The new system is designed to be highly testable. All side-effectful operations (file system access, command execution) are abstracted behind a
Hostinterface, allowing for comprehensive and reliable unit testing in complete isolation.Key features include:
acquireTempPackagemethod to support temporary, isolated package installations.This abstraction paves the way for the eventual removal of several direct package dependencies, including
ini,@yarnpkg/lockfile, andpacote.