Update GN reference.md.
https://chromium-review.googlesource.com/c/chromium/src/+/642717 added
a new switch to `gn args`. Update the reference.md with the new docs.
$ build gn && gn help --markdown all > docs/reference.md
Change-Id: I06be347e72cab84d2b3bf4c887c59489da9f30f2
Reviewed-on: https://chromium-review.googlesource.com/644487
Reviewed-by: Brett Wilson <brettw@chromium.org>
Commit-Queue: Mike Bjorge <mbjorge@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#498646}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: f751b31e6323c40033a48c4b9d1fef009cad2ceddiff --git a/tools/gn/docs/reference.md b/tools/gn/docs/reference.md
index 2d7a0c0..981b6f4 100644
--- a/tools/gn/docs/reference.md
+++ b/tools/gn/docs/reference.md
@@ -215,7 +215,7 @@
tries really hard to always write something to the output JSON and convey
errors that way rather than via return codes.
```
-### <a name="args"></a>**gn args <out_dir> [\--list] [\--short] [\--args]**
+### <a name="args"></a>**gn args <out_dir> [\--list] [\--short] [\--args] [\--overrides-only]**
```
See also "gn help buildargs" for a more high-level overview of how
@@ -240,7 +240,7 @@
Note: you can edit the build args manually by editing the file "args.gn"
in the build directory and then running "gn gen <out_dir>".
- gn args <out_dir> --list[=<exact_arg>] [--short]
+ gn args <out_dir> --list[=<exact_arg>] [--short] [--overrides-only]
Lists all build arguments available in the current configuration, or, if
an exact_arg is specified for the list flag, just that one build
argument.
@@ -251,6 +251,10 @@
If --short is specified, only the names and current values will be
printed.
+
+ If --overrides-only is specified, only the names and current values of
+ arguments that have been overridden (i.e. non-default arguments) will
+ be printed. Overrides come from the <out_dir>/args.gn file and //.gn
```
#### **Examples**
@@ -263,6 +267,9 @@
Prints all arguments with their default values for the out/Debug
build.
+ gn args out/Debug --list --short --overrides-only
+ Prints overridden arguments for the out/Debug build.
+
gn args out/Debug --list=target_cpu
Prints information about the "target_cpu" argument for the "
"out/Debug
@@ -6090,13 +6097,6 @@
itself).
```
-#### **Shared libraries**
-
-```
- The results of shared_library targets are runtime dependencies, unless the
- targets are depended upon only through action/action_foreach.
-```
-
#### **Multiple outputs**
```
@@ -6242,3 +6242,4 @@
* [-v: Verbose logging.](#-v)
* [--version: Prints the GN version number and exits.](#--version)
```
+
