Prepares the `@angular-devkit/schematics-cli` package for the eventual change of enabling the
TypeScript `useUnknownInCatchVariables` option. This option provides additional
code safety by ensuring that the catch clause variable is the proper type before
attempting to access its properties. Similar changes will be needed in the other
packages in the repository prior to enabling `useUnknownInCatchVariables`.
Code related to decoding buffers into strings and parsing content into JSON can now be removed by using the
support provided directly from the Tree instance for the executing schematic.
.substr() is deprecated so we replace it with .slice() which works similarily but isn't deprecated
Signed-off-by: Tobias Speicher <rootcommander@gmail.com>
rules_nodejs 4 requires that a package_name property be specified within a ts_library rule for the output to be linked into the package repository. Failing to add the property can cause test failures due to unresolved packages.
When using the schematics-cli with a local collection, the debug mode is enabled by default. Debug mode also enables dry run mode by default. This can result in a confusing situation when developing a schematic locally as files will not be written to disk but no messages are present explaining why. To improve the developer experience, messages will now be shown both when debug mode is enabled and when dry run is enabled. If either is enabled by default the reason will also be shown.
The `esModuleInterop` option is recommended to be enable by TypeScript and corrects several assumptions TypeScript would otherwise make when importing CommonJS files.
This option change helps ensure compatibility as packages move towards ESM.
Reference: https://www.typescriptlang.org/tsconfig#esModuleInterop
With the support of TypeScript 4.3 within the Angular framework, the CLI now supports using TypeScript 4.3 as well. TypeScript 4.2 also continues to be supported for existing projects.
