[libvirt PATCH] docs: introduce stubs for new libvirt Go packages

[Daniel P. Berrangé]

Currently we expose libvirt Go packages at

  libvirt.org/libvirt-go
  libvirt.org/libvirt-go-xml

These packages have not supported Go modules historically and when we
tried to introduce modules, we hit the problem that we're not using
semver for versioning.

The only way around this is to introduce new packages under a different
namespace, that will have the exact same code, but be tagged with a
different version numbering scheme.

This change proposes:

  libvirt.org/go/libvirt
  libvirt.org/go/libvirtxml

Note the hyphen is removed so that the import basename matches the
Go package name.

Signed-off-by: Daniel P. Berrangé <berrange at redhat.com>
---

The corresponding repos exist

  https://gitlab.com/libvirt/libvirt-go-module
  https://gitlab.com/libvirt/libvirt-go-xml-module

but I'm leaving them empty until we've completed this release, then
I'll populate with content matching 7.4.0, minus the existing tags.
This change should also wait until after the release.

 docs/go/libvirt.rst    | 13 +++++++++++
 docs/go/libvirtxml.rst | 10 ++++++++
 docs/go/meson.build    | 53 ++++++++++++++++++++++++++++++++++++++++++
 docs/meson.build       |  1 +
 4 files changed, 77 insertions(+)
 create mode 100644 docs/go/libvirt.rst
 create mode 100644 docs/go/libvirtxml.rst
 create mode 100644 docs/go/meson.build

diff --git a/docs/go/libvirt.rst b/docs/go/libvirt.rst
new file mode 100644
index 0000000000..46250691c1
--- /dev/null
+++ b/docs/go/libvirt.rst
@@ -0,0 +1,13 @@
+=======================
+Libvirt Go Language API
+=======================
+
+The `Go <https://golang.org/>`__ package ``libvirt.org/go/libvirt`` provides
+`CGo <https://golang.org/cmd/cgo/>`__ binding from the OS native Libvirt API.
+
+In general the Go representation is a direct 1-1 mapping from native API
+concepts to Go, so the native API documentation should serve as a reference
+for most behaviour.
+
+For details of Go specific behaviour consult the
+`Go package documentation <https://pkg.go.dev/libvirt.org/go/libvirt>`__.
diff --git a/docs/go/libvirtxml.rst b/docs/go/libvirtxml.rst
new file mode 100644
index 0000000000..7583433f56
--- /dev/null
+++ b/docs/go/libvirtxml.rst
@@ -0,0 +1,10 @@
+==========================
+Libvirt Go XML parsing API
+==========================
+
+The `Go <https://golang.org/>`__ package ``libvirt.org/go/libvirtxml`` provides
+annotated Go struct definitions for parsing (and formatting) XML documents used
+with libvirt APIs.
+
+For details of Go specific behaviour consult the
+`Go package documentation <https://pkg.go.dev/libvirt.org/go/libvirtxml>`__.
diff --git a/docs/go/meson.build b/docs/go/meson.build
new file mode 100644
index 0000000000..99fa1b074a
--- /dev/null
+++ b/docs/go/meson.build
@@ -0,0 +1,53 @@
+docs_go_files = [
+  'libvirt',
+  'libvirtxml',
+]
+
+html_xslt_gen_xslt = subsite_xsl
+html_xslt_gen_install_dir = docs_html_dir / 'go'
+html_xslt_gen = []
+
+foreach name : docs_go_files
+  rst_file = '@0 at .rst'.format(name)
+
+  html_xslt_gen += {
+    'name': name,
+    'file': docs_rst2html_gen.process(rst_file),
+    'source': 'docs/go' / rst_file,
+  }
+endforeach
+
+# keep the XSLT processing code block in sync with docs/meson.build
+
+# --- begin of XSLT processing ---
+
+foreach data : html_xslt_gen
+  html_filename = data['name'] + '.html'
+
+  html_file = custom_target(
+    html_filename,
+    input: data.get('file', data['name'] + '.html.in'),
+    output: html_filename,
+    command: [
+      xsltproc_prog,
+      '--stringparam', 'pagesrc', data.get('source', ''),
+      '--stringparam', 'builddir', meson.build_root(),
+      '--stringparam', 'timestamp', docs_timestamp,
+      '--nonet',
+      html_xslt_gen_xslt,
+      '@INPUT@',
+    ],
+    depends: data.get('depends', []),
+    depend_files: [ page_xsl ],
+    capture: true,
+    install: true,
+    install_dir: html_xslt_gen_install_dir,
+  )
+
+  install_web_deps += html_file
+  install_web_files += html_file.full_path() + ':' + html_xslt_gen_install_dir
+endforeach
+
+html_xslt_gen = []
+
+# --- end of XSLT processing ---
diff --git a/docs/meson.build b/docs/meson.build
index f550629d8e..d7afdbd323 100644
--- a/docs/meson.build
+++ b/docs/meson.build
@@ -296,6 +296,7 @@ html_xslt_gen = []
 # --- end of XSLT processing ---
 
 subdir('fonts')
+subdir('go')
 subdir('html')
 subdir('internals')
 subdir('js')
-- 
2.31.1