RFR JDK-8240241: Add support for JCov DiffCoverage to make files

[Erik Joelsson]

Looks good.

/Erik

On 2020-03-03 12:45, Alexandre (Shura) Iline wrote:
> Hi.
>
> Can you take a look on this change introducing make support for JCov DiffCoverage command.
>
> DiffCoverage allows to generate a textual report showing coverage for only changed source code,
>
> This is an example of how the functionality can be used:
> ————————————————————————————————————————————————————————————————————
> $ make  jcov-test TEST=open/test/langtools/jdk/javadoc/doclet TEST_OPTS_JCOV_DIFF_CHANGESET=58193
> $ cat build/linux-x64/test-results/jcov-output/diff_coverage_report
>     jdk/javadoc/internal/doclets/formats/html/markup/HtmlStyle.java: HtmlStyle.void <clinit>()
> +    106 |    notes,
>     jdk/javadoc/internal/doclets/formats/html/SerializedFormWriterImpl.java: SerializedFormWriterImpl.jdk.javadoc.internal.doclets.toolkit.Content getSerialUIDInfoHeader()
> +    187 |        return new HtmlTree(HtmlTag.DL).setStyle(HtmlStyle.nameValue);
>     jdk/javadoc/internal/doclets/formats/html/HtmlDocletWriter.java: HtmlDocletWriter.void <init>(jdk.javadoc.internal.doclets.formats.html.HtmlConfiguration,jdk.javadoc.internal.d
> oclets.toolkit.util.DocPath)
>       345 |     * @param htmlTree the documentation tree to which the tags will be added
>       347 |    protected void addTagsInfo(Element e, Content htmlTree) {
> +    351 |        Content dl = new HtmlTree(HtmlTag.DL).setStyle(HtmlStyle.notes);
> +    360 |        htmlTree.add(dl);
>     jdk/javadoc/internal/doclets/formats/html/HtmlSerialFieldWriter.java: HtmlSerialFieldWriter.void addMemberTags(javax.lang.model.element.VariableElement,jdk.javadoc.internal.doc
> lets.toolkit.Content)
> +    203 |        Content dlTags = new HtmlTree(HtmlTag.DL).setStyle(HtmlStyle.notes);
>     jdk/javadoc/internal/doclets/formats/html/ClassWriterImpl.java: ClassWriterImpl.void addParamInfo(jdk.javadoc.internal.doclets.toolkit.Content)
> +    354 |                classInfoTree.add(HtmlTree.DL(paramInfo).setStyle(HtmlStyle.notes));
>     jdk/javadoc/internal/doclets/formats/html/HtmlSerialMethodWriter.java: HtmlSerialMethodWriter.void addMemberTags(javax.lang.model.element.ExecutableElement,jdk.javadoc.internal
> .doclets.toolkit.Content)
> +    162 |        Content dlTags = new HtmlTree(HtmlTag.DL).setStyle(HtmlStyle.notes);
> ...
> lines: 428 new; 40 covered; 4 not covered; 43 not code; 341 no information
> ————————————————————————————————————————————————————————————————————
>
> Webrev: http://cr.openjdk.java.net/~shurailine/JDK-8240241/webrev.00/
>
> Shura.
>