[swift-dev] Starter project: 'swift-format' tool: Move the swift indentation mechanism from SourceKit to libIDE and utilize it for a command-line tool

[Argyrios Kyrtzidis]

Hi all,

If someone is looking for a starter project in our tooling support area, here’s one you can dig your teeth into:

SourceKit contains indentation logic that is not exposed in the libIDE library; this is not desirable, primarily because SourceKit is not cross-platform. Here are some steps to improve on this:

	• Move the indentation logic from SourceKit to libIDE. Have SourceKit just expose the functionality contained in libIDE.
	• Start a 'swift-format’ command-line tool that uses the indentation mechanism from libIDE; given a file and source range it auto-indents it.
	• See prior work for 'clang-format' (http://clang.llvm.org/docs/ClangFormat.html) for investigation on how to specify and provide formatting options.

This is tracked via https://bugs.swift.org/browse/SR-146

-Argyrios
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