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[xen staging] golang/xenlight: add necessary module/package documentation



commit 61be48dc029294275348443f78a5e600ef28274f
Author:     Nick Rosbrook <rosbrookn@xxxxxxxxx>
AuthorDate: Wed May 13 10:18:19 2020 -0400
Commit:     George Dunlap <george.dunlap@xxxxxxxxxx>
CommitDate: Wed May 13 16:06:21 2020 +0100

    golang/xenlight: add necessary module/package documentation
    
    Add a README and package comment giving a brief overview of the package.
    These also help pkg.go.dev generate better documentation.
    
    Also, add a copy of the LGPL (the same license used by libxl) to
    tools/golang/xenlight. This is required for the package to be shown
    on pkg.go.dev and added to the default module proxy, proxy.golang.org.
    
    Finally, add an entry for the xenlight package to SUPPORT.md.
    
    Signed-off-by: Nick Rosbrook <rosbrookn@xxxxxxxxxxxx>
    Reviewed-by: George Dunlap <george.dunlap@xxxxxxxxxx>
---
 SUPPORT.md                        |   6 +
 tools/golang/xenlight/LICENSE     | 502 ++++++++++++++++++++++++++++++++++++++
 tools/golang/xenlight/README.md   |  28 +++
 tools/golang/xenlight/xenlight.go |   2 +
 4 files changed, 538 insertions(+)

diff --git a/SUPPORT.md b/SUPPORT.md
index 7270c9b021..e3a366fd56 100644
--- a/SUPPORT.md
+++ b/SUPPORT.md
@@ -147,6 +147,12 @@ Output of information in machine-parseable JSON format
 
     Status: Supported
 
+### xenlight Go package
+
+Go (golang) bindings for libxl
+
+    Status: Experimental
+
 ## Toolstack/3rd party
 
 ### libvirt driver for xl
diff --git a/tools/golang/xenlight/LICENSE b/tools/golang/xenlight/LICENSE
new file mode 100644
index 0000000000..4362b49151
--- /dev/null
+++ b/tools/golang/xenlight/LICENSE
@@ -0,0 +1,502 @@
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diff --git a/tools/golang/xenlight/README.md b/tools/golang/xenlight/README.md
new file mode 100644
index 0000000000..a423a5600a
--- /dev/null
+++ b/tools/golang/xenlight/README.md
@@ -0,0 +1,28 @@
+# xenlight
+
+## About
+
+The xenlight package provides Go bindings to Xen's libxl C library via cgo.
+The package is currently in an unstable "experimental" state. This means
+the package is ready for initial use and evaluation, but is not yet fully
+functional. Namely, only a subset of libxl's API is implemented, and
+breaking changes may occur in future package versions.
+
+Much of the package is generated using the libxl IDL. Changes to the
+generated code can be made by modifying `tools/golang/xenlight/gengotypes.py`
+in the xen.git tree.
+
+## Getting Started
+
+```go
+import (
+        "xenbits.xenproject.org/git-http/xen.git/tools/golang/xenlight"
+)
+```
+
+The module is not yet tagged independently of xen.git; if you donâ??t specify
+the version, youâ??ll get the most recent development version, which is
+probably not what you want. A better option would be to specify a Xen
+release tag; for instance:
+
+    go get 
xenbits.xenproject.org/git-http/xen.git/tools/golang/xenlight@RELEASE-4.14.0.
diff --git a/tools/golang/xenlight/xenlight.go 
b/tools/golang/xenlight/xenlight.go
index 742e5e11f1..b9189dec5c 100644
--- a/tools/golang/xenlight/xenlight.go
+++ b/tools/golang/xenlight/xenlight.go
@@ -14,6 +14,8 @@
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; If not, see <http://www.gnu.org/licenses/>.
  */
+
+// Package xenlight provides bindings to Xen's libxl C library.
 package xenlight
 
 /*
--
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