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    Update go fmt for new tool support and code parse error handling.

    Review Request #11569 — Created April 2, 2021 and submitted

    Information

    ReviewBot
    release-3.0.x

    Reviewers

    This updates GofmtTool to subclass the newer BaseTool, and to use
    the newer features it offers (dependencies, improved file extension
    handling, and centralized base command building).

    The new version of the tool also handles the case where a .go file
    can't be parsed. Previously, we'd log the error but the tool would claim
    it passed without issues. The new version parses any error lines it
    finds and reports them as comments.

    Unit tests pass on Python 2.7 and 3.x.

    Summary ID
    Update go fmt for new tool support and code parse error handling.
    This updates `GofmtTool` to subclass the newer `BaseTool`, and to use the newer features it offers (dependencies, improved file extension handling, and centralized base command building). The new version of the tool also handles the case where a `.go` file can't be parsed. Previously, we'd log the error but the tool would claim it passed without issues. The new version parses any error lines it finds and reports them as comments.
    2828889a3ace0d5f6e2dd2ea51122ea7d8180807
    david
    1. Ship It!
    2. 
        
    chipx86
    Review request changed
    Status:
    Completed
    Change Summary:
    Pushed to release-3.0.x (3d64600)