Re: RFR: 8295884: Implement IDE support for Eclipse [v13]

[Julian Waters]

> Eclipse is a popular and very well-known IDE in the world of Java 
> development, utilized widely in many contexts, by beginners and experienced 
> teams alike. Although a relatively lightweight IDE, it features surprisingly 
> powerful indexing and code analysis capabilities, as well as useful tools, 
> among which are make and Ant integration. While the tools it provides are not 
> always as sophisticated as other IDEs (IntelliJ IDEA will likely come to mind 
> as one such competitor), the simplicity of using it, as well as the 
> reliability of this rugged IDE makes up greatly for the slightly less 
> advanced tooling. Eclipse requires very little starting infrastructure in the 
> workspace for all these features and indexing support as well, which makes it 
> a good candidate for developing on the JDK.
> 
> This enhancement adds 4 extra targets to the make system for generating a 
> basic Eclipse Workspace that provides almost full indexing support for the 
> JDK, with varying levels as desired, from a minimalistic option only 
> including the JVM's sources, to generating a workspace with both Java and 
> C/C++ natures included, which allows for using Eclipse's ability to quickly 
> swap between Java and C/C++ mode to work on both native and Java sources at 
> the same time. Cross Compiling support is available, and in its entirety the 
> change touches very little of the existing make system, barring its own 
> Makefile within the ide subdirectory.
> 
> Indexing capabilities utilizing the enhancement:
> <img width="960" alt="java" 
> src="https://user-images.githubusercontent.com/32636402/197784819-67ec7de4-7e27-4f33-b738-59b75a9e4403.PNG";>
> <img width="787" alt="escape" 
> src="https://user-images.githubusercontent.com/32636402/197784843-df8621a8-7b0a-42da-86f4-3afb92de0f71.PNG";>

Julian Waters has updated the pull request with a new target base due to a 
merge or a rebase. The incremental webrev excludes the unrelated changes 
brought in by the merge/rebase. The pull request contains 17 additional commits 
since the last revision:

 - Merge remote-tracking branch 'upstream/master' into eclipse
 - Merge remote-tracking branch 'upstream/master' into eclipse
 - Merge remote-tracking branch 'upstream/master' into eclipse
 - Include extra directories required by HotSpot in HotSpot only workspaces
 - SINGLE_DOLLAR is not required
 - Nuke accidental comment not meant to be added
 - Initial support for Language Settings Providers
 - Prevent Eclipse from automatically attaching binary parsers to workspaces 
including native code
 - Merge
 - Squash issue with commas
 - ... and 7 more: https://git.openjdk.org/jdk/compare/3e3e9c16...065cbea5

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/10853/files
  - new: https://git.openjdk.org/jdk/pull/10853/files/db0e248e..065cbea5

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=10853&range=12
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=10853&range=11-12

  Stats: 11094 lines in 228 files changed: 8335 ins; 1792 del; 967 mod
  Patch: https://git.openjdk.org/jdk/pull/10853.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10853/head:pull/10853

PR: https://git.openjdk.org/jdk/pull/10853