Update GN docs about Visual Studio generators
BUG=
Review URL: https://codereview.chromium.org/1750523002
Cr-Original-Commit-Position: refs/heads/master@{#378419}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
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diff --git a/tools/gn/docs/faq.md b/tools/gn/docs/faq.md
index cd32f6a..5a4bb07 100644
--- a/tools/gn/docs/faq.md
+++ b/tools/gn/docs/faq.md
@@ -31,19 +31,11 @@
## Will XCode/Visual Studio still be supported?
-They're not supported now.
+Visual Studio is supported. Visual Studio can be used as an IDE for code
+browsing or debugging but Ninja is used for building.
+Run `gn help gen` for more details.
-Long-term, if your use-case is to use Ninja for building but Visual
-Studio or XCode for debugging, there is desire to write a simple wrapper
-around Ninja that lists the files in Visual Studio or XCode format, and
-has a command to run ninja for when you press build. This setup should
-provide the type of interactive debugging experience people want (the
-iOS team currently uses a Ninja/XCode build like this with success).
-
-This project is not staffed. If you're interested, it probably isn't too
-hard. It won't get done unless somebody volunteers. There is a [spec for
-IDE
-integration](https://docs.google.com/document/d/1kwREU99u8GpRammLbbKwrfaDI6WV7nsMAaoF5dcuhOU/edit?usp=sharing).
+XCode is not supported yet. We need help!
## I'm weird. Will my uncommon build mode be supported?
diff --git a/tools/gn/docs/reference.md b/tools/gn/docs/reference.md
index 9ed3b87..40da46b 100644
--- a/tools/gn/docs/reference.md
+++ b/tools/gn/docs/reference.md
@@ -532,7 +532,7 @@
## **gn gen**: Generate ninja files.
```
- gn gen [--ide=<ide_name>] <out_dir>
+ gn gen [<ide options>] <out_dir>
Generates ninja files from the current tree and puts them in the given
output directory.
@@ -542,12 +542,47 @@
Or it can be a directory relative to the current directory such as:
out/foo
- --ide=<ide_name>
- Also generate files for an IDE. Currently supported values:
- 'vs' - Visual Studio project/solution files.
-
See "gn help switches" for the common command-line switches.
+```
+
+### **IDE options**
+
+```
+ GN optionally generates files for IDE. Possibilities for <ide options>
+
+ --ide=<ide_name>
+ Generate files for an IDE. Currently supported values:
+ "eclipse" - Eclipse CDT settings file.
+ "vs" - Visual Studio project/solution files.
+ (default Visual Studio version: 2015)
+ "vs2013" - Visual Studio 2013 project/solution files.
+ "vs2015" - Visual Studio 2015 project/solution files.
+
+ --sln=<file_name>
+ Override default sln file name ("all"). Solution file is written
+ to the root build directory. Only for Visual Studio.
+
+ --filters=<path_prefixes>
+ Semicolon-separated list of label patterns used to limit the set
+ of generated projects (see "gn help label_pattern"). Only
+ matching targets will be included to the solution. Only for Visual
+ Studio.
+
+```
+
+### **Eclipse IDE Support**
+
+```
+ GN DOES NOT generate Eclipse CDT projects. Instead, it generates a
+ settings file which can be imported into an Eclipse CDT project. The
+ XML file contains a list of include paths and defines. Because GN does
+ not generate a full .cproject definition, it is not possible to
+ properly define includes/defines for each file individually.
+ Instead, one set of includes/defines is generated for the entire
+ project. This works fairly well but may still result in a few indexer
+ issues here and there.
+
```
## **gn help <anything>**
