Fix a bug where targets with multiple dependencies was only passed on…

…e dependency (#98)

* Refine command line argument types to define flag/option specific names

This means that flag/option specific API can leverage types instead of including "flag" or "option" in the API's name.
This also means that a named option requires a value to create an argument.

Co-authored-by: Sofía Rodríguez <sofia_rodriguez@apple.com>

* Support defining an option that supports an array of values.

Also, define `--dependency` as an array-of-values option.

Co-authored-by: Sofía Rodríguez <sofia_rodriguez@apple.com>

* Fix a logic bug where an alternate argument spellings with common prefixes would sometimes not extract a value.

* Move the inverse names configuration into CommandLineArgument.Flag

* Add integration test that verifies that targets are passed all their dependencies

* Use the CommandLineArguments type to construct the merge arguments

* Print the 'docc merge' call when the `--verbose` flag is passed

* Fix an unrelated code warning in Swift 5.7

* Fix an unrelated code warning and avoid undefined behavior in snippet-extract

* Correctly document updated parameters

Co-authored-by: Sofía Rodríguez <sofia_rodriguez@apple.com>

* Fix other unrelated documentation warnings

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Co-authored-by: Sofía Rodríguez <sofia_rodriguez@apple.com>

Fix backwards compatibility issue with Swift 5.7 (#96)

* Fix backwards compatibility issue with Swift 5.7.
swift-docc-plugin was not building with Swift 5.7 due to using newer syntax which did not exist yet. Fixes the compilation issues to use older Swift syntax.

* Set minimum supported version to Swift 5.7.
swift-docc-plugin does not support Swift 5.6 -- increasing the tool version in Package.swift to clearly indicate this.

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Fixes #94 and rdar://134859979.

Avoid using `NSLock.withLock` because Linux doesn't support it before…

… Swift 6.0 (#93)

Support `--output-path` when building documentation for multiple targ…

…ets. (#89)

* Support using a custom `--output-path` when building a combined archive

Also, print all archive output paths at the end instead of during build

* Customize the synthesized landing page when DocC supports it

* Provide more information about the steps for each target's build task

* Support `--output-path` with multiple targets, even without combined documentation

* Add integration tests for building combined documentation

* Build documentation for different targets concurrently

* Code review feedback: move sorting archives to where it's used

* Remove unused local variable

* Code review feedback: simplify creation of DocCFeatures

* Code review feedback: move assertion for better locality with the potential bug.

* Fix bug in test helper where other log output was sometimes parsed as an archive output path

* Update integration tests to reflect new DocC behavior (synthesized landing pages for combined archives)

Make --include-extended-types default for Swift 5.9 (#57)

* make --include-extended-types default for Swift 5.9 and introduce --exclude-extended-types flag

* address review comments
 - mention default behavior earlier in docs
 - be more precise about method/function terminology in docs

Add experimental flag for skipping synthesized symbols (#28)

Adds support for the generation of DocC archives without synthesized
symbols by passing a new, experimental, plugin flag
`--experimental-skip-synthesized-symbols`.

Enabling this flag does not transform or post-process any of the passed
arguments but overrides the default value of
`symbolGraphOptions.includeSynthesized` that is provided to SwiftPM to false.

Tag version 1.1.0

This time, with new upstream SymbolKit version 1.0.0.

Initial release.