8:38 a.m.
As part of an goal to eliminate Perl from libvirt build tools,
rewrite the hvsupport.pl tool in Python.
This was a straight conversion, manually going line-by-line to
change the syntax from Perl to Python. Thus the overall structure
of the file and approach is the same.
The new impl generates byte-for-byte identical output to the
old impl.
Signed-off-by: Daniel P. Berrangé <berrange(a)redhat.com>
---
Makefile.am | 1 +
docs/Makefile.am | 7 +-
docs/hvsupport.pl | 459 ---------------------------------------
scripts/hvsupport.py | 504 +++++++++++++++++++++++++++++++++++++++++++
4 files changed, 508 insertions(+), 463 deletions(-)
delete mode 100755 docs/hvsupport.pl
create mode 100755 scripts/hvsupport.py
diff --git a/Makefile.am b/Makefile.am
index 19114069e3..bc8aecc4a2 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -60,6 +60,7 @@ EXTRA_DIST = \
scripts/gensystemtap.py \
scripts/group-qemu-caps.py \
scripts/header-ifdef.py \
+ scripts/hvsupport.py \
scripts/minimize-po.py \
scripts/mock-noinline.py \
scripts/prohibit-duplicate-header.py \
diff --git a/docs/Makefile.am b/docs/Makefile.am
index 0311bbedd8..cf83949168 100644
--- a/docs/Makefile.am
+++ b/docs/Makefile.am
@@ -172,7 +172,6 @@ EXTRA_DIST= \
$(internals_html_in) $(fonts) \
$(kbase_html_in) \
aclperms.htmlinc \
- hvsupport.pl \
$(schema_DATA)
acl_generated = aclperms.htmlinc
@@ -212,12 +211,12 @@ web: $(dot_html) $(internals_html) $(kbase_html) \
hvsupport.html: hvsupport.html.in
-hvsupport.html.in: $(srcdir)/hvsupport.pl $(api_DATA) \
+hvsupport.html.in: $(top_srcdir)/scripts/hvsupport.py $(api_DATA) \
$(top_srcdir)/src/libvirt_public.syms \
$(top_srcdir)/src/libvirt_qemu.syms $(top_srcdir)/src/libvirt_lxc.syms \
$(top_srcdir)/src/driver.h
- $(AM_V_GEN)$(PERL) $(srcdir)/hvsupport.pl $(top_srcdir) $(top_builddir) > $@ \
- || { rm $@ && exit 1; }
+ $(AM_V_GEN)$(RUNUTF8) $(PYTHON) $(top_srcdir)/scripts/hvsupport.py \
+ $(top_srcdir) $(top_builddir) > $@ || { rm $@ && exit 1; }
news.html.in: \
$(srcdir)/news.xml \
diff --git a/docs/hvsupport.pl b/docs/hvsupport.pl
deleted file mode 100755
index 0977098eac..0000000000
--- a/docs/hvsupport.pl
+++ /dev/null
@@ -1,459 +0,0 @@
-#!/usr/bin/env perl
-
-use strict;
-use warnings;
-
-use File::Find;
-
-die "syntax: $0 SRCDIR BUILDDIR\n" unless int(@ARGV) == 2;
-
-my $srcdir = shift @ARGV;
-my $builddir = shift @ARGV;
-
-my $symslibvirt = "$srcdir/src/libvirt_public.syms";
-my $symsqemu = "$srcdir/src/libvirt_qemu.syms";
-my $symslxc = "$srcdir/src/libvirt_lxc.syms";
-my @drivertable = (
- "$srcdir/src/driver-hypervisor.h",
- "$srcdir/src/driver-interface.h",
- "$srcdir/src/driver-network.h",
- "$srcdir/src/driver-nodedev.h",
- "$srcdir/src/driver-nwfilter.h",
- "$srcdir/src/driver-secret.h",
- "$srcdir/src/driver-state.h",
- "$srcdir/src/driver-storage.h",
- "$srcdir/src/driver-stream.h",
- );
-
-my %groupheaders = (
- "virHypervisorDriver" => "Hypervisor APIs",
- "virNetworkDriver" => "Virtual Network APIs",
- "virInterfaceDriver" => "Host Interface APIs",
- "virNodeDeviceDriver" => "Host Device APIs",
- "virStorageDriver" => "Storage Pool APIs",
- "virSecretDriver" => "Secret APIs",
- "virNWFilterDriver" => "Network Filter APIs",
- );
-
-
-my @srcs;
-find({
- wanted => sub {
- if (m!$srcdir/src/.*/\w+_(driver|common|tmpl|monitor|hal|udev)\.c$!) {
- push @srcs, $_ if $_ !~ /vbox_driver\.c/;
- }
- }, no_chdir => 1}, "$srcdir/src");
-
-# Map API functions to the header and documentation files they're in
-# so that we can generate proper hyperlinks to their documentation.
-#
-# The function names are grep'd from the XML output of apibuild.py.
-sub getAPIFilenames {
- my $filename = shift;
-
- my %files;
- my $line;
-
- open FILE, "<", $filename or die "cannot read $filename: $!";
-
- while (defined($line = <FILE>)) {
- if ($line =~ /function name='([^']+)' file='([^']+)'/) {
- $files{$1} = $2;
- }
- }
-
- close FILE;
-
- if (keys %files == 0) {
- die "No functions found in $filename. Has the apibuild.py output
changed?";
- }
- return \%files;
-}
-
-sub parseSymsFile {
- my $apisref = shift;
- my $prefix = shift;
- my $filename = shift;
- my $xmlfilename = shift;
-
- my $line;
- my $vers;
- my $prevvers;
-
- my $filenames = getAPIFilenames($xmlfilename);
-
- open FILE, "<$filename"
- or die "cannot read $filename: $!";
-
- while (defined($line = <FILE>)) {
- chomp $line;
- next if $line =~ /^\s*#/;
- next if $line =~ /^\s*$/;
- next if $line =~ /^\s*(global|local):/;
- if ($line =~ /^\s*${prefix}_(\d+\.\d+\.\d+)\s*{\s*$/) {
- if (defined $vers) {
- die "malformed syms file";
- }
- $vers = $1;
- } elsif ($line =~ /\s*}\s*;\s*$/) {
- if (defined $prevvers) {
- die "malformed syms file";
- }
- $prevvers = $vers;
- $vers = undef;
- } elsif ($line =~ /\s*}\s*${prefix}_(\d+\.\d+\.\d+)\s*;\s*$/) {
- if ($1 ne $prevvers) {
- die "malformed syms file $1 != $vers";
- }
- $prevvers = $vers;
- $vers = undef;
- } elsif ($line =~ /\s*(\w+)\s*;\s*$/) {
- $$apisref{$1} = {};
- $$apisref{$1}->{vers} = $vers;
- $$apisref{$1}->{file} = $$filenames{$1};
- } else {
- die "unexpected data $line\n";
- }
- }
-
- close FILE;
-}
-
-my %apis;
-# Get the list of all public APIs and their corresponding version
-parseSymsFile(\%apis, "LIBVIRT", $symslibvirt,
"$builddir/docs/libvirt-api.xml");
-
-# And the same for the QEMU specific APIs
-parseSymsFile(\%apis, "LIBVIRT_QEMU", $symsqemu,
"$builddir/docs/libvirt-qemu-api.xml");
-
-# And the same for the LXC specific APIs
-parseSymsFile(\%apis, "LIBVIRT_LXC", $symslxc,
"$builddir/docs/libvirt-lxc-api.xml");
-
-
-# Some special things which aren't public APIs,
-# but we want to report
-$apis{virConnectSupportsFeature}->{vers} = "0.3.2";
-$apis{virDomainMigratePrepare}->{vers} = "0.3.2";
-$apis{virDomainMigratePerform}->{vers} = "0.3.2";
-$apis{virDomainMigrateFinish}->{vers} = "0.3.2";
-$apis{virDomainMigratePrepare2}->{vers} = "0.5.0";
-$apis{virDomainMigrateFinish2}->{vers} = "0.5.0";
-$apis{virDomainMigratePrepareTunnel}->{vers} = "0.7.2";
-
-$apis{virDomainMigrateBegin3}->{vers} = "0.9.2";
-$apis{virDomainMigratePrepare3}->{vers} = "0.9.2";
-$apis{virDomainMigratePrepareTunnel3}->{vers} = "0.9.2";
-$apis{virDomainMigratePerform3}->{vers} = "0.9.2";
-$apis{virDomainMigrateFinish3}->{vers} = "0.9.2";
-$apis{virDomainMigrateConfirm3}->{vers} = "0.9.2";
-
-$apis{virDomainMigrateBegin3Params}->{vers} = "1.1.0";
-$apis{virDomainMigratePrepare3Params}->{vers} = "1.1.0";
-$apis{virDomainMigratePrepareTunnel3Params}->{vers} = "1.1.0";
-$apis{virDomainMigratePerform3Params}->{vers} = "1.1.0";
-$apis{virDomainMigrateFinish3Params}->{vers} = "1.1.0";
-$apis{virDomainMigrateConfirm3Params}->{vers} = "1.1.0";
-
-
-
-# Now we want to get the mapping between public APIs
-# and driver struct fields. This lets us later match
-# update the driver impls with the public APis.
-
-my $line;
-
-# Group name -> hash of APIs { fields -> api name }
-my %groups;
-my $ingrp;
-foreach my $drivertable (@drivertable) {
- open FILE, "<$drivertable"
- or die "cannot read $drivertable: $!";
-
- while (defined($line = <FILE>)) {
- if ($line =~ /struct _(vir\w*Driver)/) {
- my $grp = $1;
- if ($grp ne "virStateDriver" &&
- $grp ne "virStreamDriver") {
- $ingrp = $grp;
- $groups{$ingrp} = { apis => {}, drivers => {} };
- }
- } elsif ($ingrp) {
- if ($line =~ /^\s*vir(?:Drv)(\w+)\s+(\w+);\s*$/) {
- my $field = $2;
- my $name = $1;
-
- my $api;
- if (exists $apis{"vir$name"}) {
- $api = "vir$name";
- } elsif ($name =~ /\w+(Open|Close|URIProbe)/) {
- next;
- } else {
- die "driver $name does not have a public API";
- }
- $groups{$ingrp}->{apis}->{$field} = $api;
- } elsif ($line =~ /};/) {
- $ingrp = undef;
- }
- }
- }
-
- close FILE;
-}
-
-
-# Finally, we read all the primary driver files and extract
-# the driver API tables from each one.
-
-foreach my $src (@srcs) {
- open FILE, "<$src" or
- die "cannot read $src: $!";
-
- my $groups_regex = join("|", keys %groups);
- $ingrp = undef;
- my $impl;
- while (defined($line = <FILE>)) {
- if (!$ingrp) {
- # skip non-matching lines early to save time
- next if not $line =~ /$groups_regex/;
-
- if ($line =~ /^\s*(?:static\s+)?($groups_regex)\s+(\w+)\s*=\s*{/ ||
- $line =~ /^\s*(?:static\s+)?($groups_regex)\s+NAME\(\w+\)\s*=\s*{/) {
- $ingrp = $1;
- $impl = $src;
-
- if ($impl =~ m,.*/node_device_(\w+)\.c,) {
- $impl = $1;
- } else {
- $impl =~ s,.*/(\w+?)_((\w+)_)?(\w+)\.c,$1,;
- }
-
- if ($groups{$ingrp}->{drivers}->{$impl}) {
- die "Group $ingrp already contains $impl";
- }
-
- $groups{$ingrp}->{drivers}->{$impl} = {};
- }
-
- } else {
- if ($line =~
m!\s*\.(\w+)\s*=\s*(\w+)\s*,?\s*(?:/\*\s*(\d+\.\d+\.\d+)\s*(?:-\s*(\d+\.\d+\.\d+))?\s*\*/\s*)?$!)
{
- my $api = $1;
- my $meth = $2;
- my $vers = $3;
- my $deleted = $4;
-
- next if $api eq "no" || $api eq "name";
-
- if ($meth eq "NULL" && !defined $deleted) {
- die "Method impl for $api is NULL, but no deleted version is
provided";
- }
- if ($meth ne "NULL" && defined $deleted) {
- die "Method impl for $api is non-NULL, but deleted version is
provided";
- }
-
- die "Method $meth in $src is missing version" unless defined
$vers || $api eq "connectURIProbe";
-
- if (!exists($groups{$ingrp}->{apis}->{$api})) {
- next if $api =~ /\w(Open|Close|URIProbe)/;
-
- die "Found unexpected method $api in $ingrp\n";
- }
-
- $groups{$ingrp}->{drivers}->{$impl}->{$api} = {};
- $groups{$ingrp}->{drivers}->{$impl}->{$api}->{vers} = $vers;
- $groups{$ingrp}->{drivers}->{$impl}->{$api}->{deleted} =
$deleted;
- if ($api eq "domainMigratePrepare" ||
- $api eq "domainMigratePrepare2" ||
- $api eq "domainMigratePrepare3") {
- if
(!$groups{$ingrp}->{drivers}->{$impl}->{"domainMigrate"}) {
-
$groups{$ingrp}->{drivers}->{$impl}->{"domainMigrate"} = {};
-
$groups{$ingrp}->{drivers}->{$impl}->{"domainMigrate"}->{vers} =
$vers;
- }
- }
-
- } elsif ($line =~ /}/) {
- $ingrp = undef;
- }
- }
- }
-
- close FILE;
-}
-
-
-# The '.open' driver method is used for 3 public APIs, so we
-# have a bit of manual fixup todo with the per-driver versioning
-# and support matrix
-
-$groups{virHypervisorDriver}->{apis}->{"openAuth"} =
"virConnectOpenAuth";
-$groups{virHypervisorDriver}->{apis}->{"openReadOnly"} =
"virConnectOpenReadOnly";
-$groups{virHypervisorDriver}->{apis}->{"domainMigrate"} =
"virDomainMigrate";
-
-my $openAuthVers = (0 * 1000 * 1000) + (4 * 1000) + 0;
-
-foreach my $drv (keys %{$groups{"virHypervisorDriver"}->{drivers}}) {
- my $openVersStr =
$groups{"virHypervisorDriver"}->{drivers}->{$drv}->{"connectOpen"}->{vers};
- my $openVers;
- if ($openVersStr =~ /(\d+)\.(\d+)\.(\d+)/) {
- $openVers = ($1 * 1000 * 1000) + ($2 * 1000) + $3;
- }
-
- # virConnectOpenReadOnly always matches virConnectOpen version
-
$groups{"virHypervisorDriver"}->{drivers}->{$drv}->{"connectOpenReadOnly"}
=
-
$groups{"virHypervisorDriver"}->{drivers}->{$drv}->{"connectOpen"};
-
-
$groups{"virHypervisorDriver"}->{drivers}->{$drv}->{"connectOpenAuth"}
= {};
-
- # virConnectOpenAuth is always 0.4.0 if the driver existed
- # before this time, otherwise it matches the version of
- # the driver's virConnectOpen entry
- if ($openVersStr eq "Y" ||
- $openVers >= $openAuthVers) {
-
$groups{"virHypervisorDriver"}->{drivers}->{$drv}->{"connectOpenAuth"}->{vers}
= $openVersStr;
- } else {
-
$groups{"virHypervisorDriver"}->{drivers}->{$drv}->{"connectOpenAuth"}->{vers}
= "0.4.0";
- }
-}
-
-
-# Another special case for the virDomainCreateLinux which was replaced
-# with virDomainCreateXML
-$groups{virHypervisorDriver}->{apis}->{"domainCreateLinux"} =
"virDomainCreateLinux";
-
-my $createAPIVers = (0 * 1000 * 1000) + (0 * 1000) + 3;
-
-foreach my $drv (keys %{$groups{"virHypervisorDriver"}->{drivers}}) {
- my $createVersStr =
$groups{"virHypervisorDriver"}->{drivers}->{$drv}->{"domainCreateXML"}->{vers};
- next unless defined $createVersStr;
- my $createVers;
- if ($createVersStr =~ /(\d+)\.(\d+)\.(\d+)/) {
- $createVers = ($1 * 1000 * 1000) + ($2 * 1000) + $3;
- }
-
-
$groups{"virHypervisorDriver"}->{drivers}->{$drv}->{"domainCreateLinux"}
= {};
-
- # virCreateLinux is always 0.0.3 if the driver existed
- # before this time, otherwise it matches the version of
- # the driver's virCreateXML entry
- if ($createVersStr eq "Y" ||
- $createVers >= $createAPIVers) {
-
$groups{"virHypervisorDriver"}->{drivers}->{$drv}->{"domainCreateLinux"}->{vers}
= $createVersStr;
- } else {
-
$groups{"virHypervisorDriver"}->{drivers}->{$drv}->{"domainCreateLinux"}->{vers}
= "0.0.3";
- }
-}
-
-
-# Finally we generate the HTML file with the tables
-
-print <<EOF;
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html>
-<html xmlns="http://www.w3.org/1999/xhtml">
-<body class="hvsupport">
-<h1>libvirt API support matrix</h1>
-
-<ul id="toc"></ul>
-
-<p>
-This page documents which <a href="html/">libvirt calls</a> work
on
-which libvirt drivers / hypervisors, and which version the API appeared
-in. If a hypervisor driver later dropped support for the API, the version
-when it was removed is also mentioned (highlighted in
-<span class="removedhv">dark red</span>).
-</p>
-
-EOF
-
- foreach my $grp (sort { $a cmp $b } keys %groups) {
- print "<h2><a id=\"$grp\">", $groupheaders{$grp},
"</a></h2>\n";
- print <<EOF;
-<table class="top_table">
-<thead>
-<tr>
-<th>API</th>
-<th>Version</th>
-EOF
-
- foreach my $drv (sort { $a cmp $b } keys %{$groups{$grp}->{drivers}}) {
- print " <th>$drv</th>\n";
- }
-
- print <<EOF;
-</tr>
-</thead>
-<tbody>
-EOF
-
- my $row = 0;
- foreach my $field (sort {
- $groups{$grp}->{apis}->{$a}
- cmp
- $groups{$grp}->{apis}->{$b}
- } keys %{$groups{$grp}->{apis}}) {
- my $api = $groups{$grp}->{apis}->{$field};
- my $vers = $apis{$api}->{vers};
- my $htmlgrp = $apis{$api}->{file};
- print <<EOF;
-<tr>
-<td>
-EOF
-
- if (defined $htmlgrp) {
- print <<EOF;
-<a href=\"html/libvirt-$htmlgrp.html#$api\">$api</a>
-EOF
-
- } else {
- print $api;
- }
- print <<EOF;
-</td>
-<td>$vers</td>
-EOF
-
- foreach my $drv (sort {$a cmp $b } keys %{$groups{$grp}->{drivers}}) {
- print "<td>";
- if (exists $groups{$grp}->{drivers}->{$drv}->{$field}) {
- if ($groups{$grp}->{drivers}->{$drv}->{$field}->{vers}) {
- print
$groups{$grp}->{drivers}->{$drv}->{$field}->{vers};
- }
- if ($groups{$grp}->{drivers}->{$drv}->{$field}->{deleted}) {
- print " - <span class=\"removedhv\">",
$groups{$grp}->{drivers}->{$drv}->{$field}->{deleted},
"</span>";
- }
- }
- print "</td>\n";
- }
-
- print <<EOF;
-</tr>
-EOF
-
- $row++;
- if (($row % 15) == 0) {
- print <<EOF;
-<tr>
-<th>API</th>
-<th>Version</th>
-EOF
-
- foreach my $drv (sort { $a cmp $b } keys %{$groups{$grp}->{drivers}}) {
- print " <th>$drv</th>\n";
- }
-
- print <<EOF;
-</tr>
-EOF
- }
-
- }
-
- print <<EOF;
-</tbody>
-</table>
-EOF
-}
-
-print <<EOF;
-</body>
-</html>
-EOF
diff --git a/scripts/hvsupport.py b/scripts/hvsupport.py
new file mode 100755
index 0000000000..7900f86f0f
--- /dev/null
+++ b/scripts/hvsupport.py
@@ -0,0 +1,504 @@
+#!/usr/bin/env python
+#
+# Copyright (C) 2011-2019 Red Hat, Inc.
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# 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/>;.
+
+from __future__ import print_function
+
+import sys
+import os.path
+import re
+
+if len(sys.argv) != 3:
+ print("syntax: %s TOP-SRCDIR TOP-BUILDDIR\n" % sys.argv[0],
file=sys.stderr)
+
+srcdir = sys.argv[1]
+builddir = sys.argv[2]
+
+symslibvirt = os.path.join(srcdir, "src", "libvirt_public.syms")
+symsqemu = os.path.join(srcdir, "src", "libvirt_qemu.syms")
+symslxc = os.path.join(srcdir, "src", "libvirt_lxc.syms")
+drivertablefiles = [
+ os.path.join(srcdir, "src", "driver-hypervisor.h"),
+ os.path.join(srcdir, "src", "driver-interface.h"),
+ os.path.join(srcdir, "src", "driver-network.h"),
+ os.path.join(srcdir, "src", "driver-nodedev.h"),
+ os.path.join(srcdir, "src", "driver-nwfilter.h"),
+ os.path.join(srcdir, "src", "driver-secret.h"),
+ os.path.join(srcdir, "src", "driver-state.h"),
+ os.path.join(srcdir, "src", "driver-storage.h"),
+ os.path.join(srcdir, "src", "driver-stream.h"),
+]
+
+groupheaders = {
+ "virHypervisorDriver": "Hypervisor APIs",
+ "virNetworkDriver": "Virtual Network APIs",
+ "virInterfaceDriver": "Host Interface APIs",
+ "virNodeDeviceDriver": "Host Device APIs",
+ "virStorageDriver": "Storage Pool APIs",
+ "virSecretDriver": "Secret APIs",
+ "virNWFilterDriver": "Network Filter APIs",
+}
+
+
+srcs = []
+for root, dirs, files in os.walk(os.path.join(srcdir, "src")):
+ for file in files:
+ if ((file.endswith("driver.c") and
+ not file.endswith("vbox_driver.c")) or
+ file.endswith("common.c") or
+ file.endswith("tmpl.c") or
+ file.endswith("monitor.c") or
+ file.endswith("hal.c") or
+ file.endswith("udev.c")):
+ srcs.append(os.path.join(root, file))
+
+
+# Map API functions to the header and documentation files they're in
+# so that we can generate proper hyperlinks to their documentation.
+#
+# The function names are grep'd from the XML output of apibuild.py.
+def getAPIFilenames(filename):
+ files = {}
+
+ with open(filename) as fh:
+ for line in fh:
+ res = re.search(r"function name='([^']+)'
file='([^']+)'", line)
+ if res is not None:
+ files[res.group(1)] = res.group(2)
+
+ if len(files) == 0:
+ raise Exception(("No functions found in %s. " +
+ "Has the apibuild.py output changed?") %
+ filename)
+
+ return files
+
+
+def parseSymsFile(apisref, prefix, filename, xmlfilename):
+ vers = None
+ prevvers = None
+
+ filenames = getAPIFilenames(xmlfilename)
+
+ with open(filename) as fh:
+ for line in fh:
+ line = line.strip()
+
+ if line == "":
+ continue
+ if line[0] == '#':
+ continue
+ if line.startswith("global:"):
+ continue
+ if line.startswith("local:"):
+ continue
+
+ groupstartmatch = re.search(r"^\s*%s_(\d+\.\d+\.\d+)\s*{\s*$" %
+ prefix, line)
+ groupendmatch1 = re.search(r"^\s*}\s*;\s*$", line)
+ groupendmatch2 = re.search(r"^\s*}\s*%s_(\d+\.\d+\.\d+)\s*;\s*$" %
+ prefix, line)
+ symbolmatch = re.search(r"^\s*(\w+)\s*;\s*$", line)
+ if groupstartmatch is not None:
+ if vers is not None:
+ raise Exception("malformed syms file when starting group")
+
+ vers = groupstartmatch.group(1)
+ elif groupendmatch1 is not None:
+ if prevvers is not None:
+ raise Exception("malformed syms file when ending group")
+
+ prevvers = vers
+ vers = None
+ elif groupendmatch2 is not None:
+ if groupendmatch2.group(1) != prevvers:
+ raise Exception("malformed syms file %s != %s " +
+ "when ending group" %
+ (groupendmatch2.group(1), prevvers))
+
+ prevvers = vers
+ vers = None
+ elif symbolmatch is not None:
+ name = symbolmatch.group(1)
+ apisref[name] = {
+ "vers": vers,
+ "file": filenames.get(name),
+ }
+ else:
+ raise Exception("unexpected data %s" % line)
+
+
+apis = {}
+# Get the list of all public APIs and their corresponding version
+parseSymsFile(apis, "LIBVIRT", symslibvirt,
+ os.path.join(builddir, "docs", "libvirt-api.xml"))
+
+# And the same for the QEMU specific APIs
+parseSymsFile(apis, "LIBVIRT_QEMU", symsqemu,
+ os.path.join(builddir, "docs",
"libvirt-qemu-api.xml"))
+
+# And the same for the LXC specific APIs
+parseSymsFile(apis, "LIBVIRT_LXC", symslxc,
+ os.path.join(builddir, "docs", "libvirt-lxc-api.xml"))
+
+
+# Some special things which aren't public APIs,
+# but we want to report
+apis["virConnectSupportsFeature"] = {
+ "vers": "0.3.2"
+}
+apis["virDomainMigratePrepare"] = {
+ "vers": "0.3.2"
+}
+apis["virDomainMigratePerform"] = {
+ "vers": "0.3.2"
+}
+apis["virDomainMigrateFinish"] = {
+ "vers": "0.3.2"
+}
+apis["virDomainMigratePrepare2"] = {
+ "vers": "0.5.0"
+}
+apis["virDomainMigrateFinish2"] = {
+ "vers": "0.5.0"
+}
+apis["virDomainMigratePrepareTunnel"] = {
+ "vers": "0.7.2"
+}
+
+apis["virDomainMigrateBegin3"] = {
+ "vers": "0.9.2"
+}
+apis["virDomainMigratePrepare3"] = {
+ "vers": "0.9.2"
+}
+apis["virDomainMigratePrepareTunnel3"] = {
+ "vers": "0.9.2"
+}
+apis["virDomainMigratePerform3"] = {
+ "vers": "0.9.2"
+}
+apis["virDomainMigrateFinish3"] = {
+ "vers": "0.9.2"
+}
+apis["virDomainMigrateConfirm3"] = {
+ "vers": "0.9.2"
+}
+
+apis["virDomainMigrateBegin3Params"] = {
+ "vers": "1.1.0"
+}
+apis["virDomainMigratePrepare3Params"] = {
+ "vers": "1.1.0"
+}
+apis["virDomainMigratePrepareTunnel3Params"] = {
+ "vers": "1.1.0"
+}
+apis["virDomainMigratePerform3Params"] = {
+ "vers": "1.1.0"
+}
+apis["virDomainMigrateFinish3Params"] = {
+ "vers": "1.1.0"
+}
+apis["virDomainMigrateConfirm3Params"] = {
+ "vers": "1.1.0"
+}
+
+
+# Now we want to get the mapping between public APIs
+# and driver struct fields. This lets us later match
+# update the driver impls with the public APis.
+
+# Group name -> hash of APIs { fields -> api name }
+groups = {}
+ingrp = None
+for drivertablefile in drivertablefiles:
+ with open(drivertablefile) as fh:
+ for line in fh:
+ starttablematch = re.search(r"struct _(vir\w*Driver)", line)
+ if starttablematch is not None:
+ grp = starttablematch.group(1)
+ if grp != "virStateDriver" and grp !=
"virStreamDriver":
+ ingrp = grp
+ groups[ingrp] = {
+ "apis": {},
+ "drivers": {}
+ }
+ elif ingrp is not None:
+ callbackmatch = re.search(r"^\s*vir(?:Drv)(\w+)\s+(\w+);\s*$",
+ line)
+ if callbackmatch is not None:
+ name = callbackmatch.group(1)
+ field = callbackmatch.group(2)
+
+ api = "vir" + name
+ if api in apis:
+ groups[ingrp]["apis"][field] = api
+ elif re.search(r"\w+(Open|Close|URIProbe)", api) is not
None:
+ continue
+ else:
+ raise Exception(("driver %s does not have " +
+ "a public API") % name)
+ elif re.search(r"};", line):
+ ingrp = None
+
+
+# Finally, we read all the primary driver files and extract
+# the driver API tables from each one.
+
+for src in srcs:
+ with open(src) as fh:
+ groupsre = "|".join(groups.keys())
+
+ ingrp = None
+ impl = None
+ for line in fh:
+ if ingrp is None:
+ m = re.search(r"^\s*(static\s+)?(" +
+ groupsre +
+ r")\s+(\w+)\s*=\s*{", line)
+ if m is None:
+ m = re.search(r"^\s*(static\s+)?(" +
+ groupsre +
+ r")\s+NAME\(\w+\)\s*=\s*{", line)
+ if m is not None:
+ ingrp = m.group(2)
+ impl = src
+
+ implmatch = re.search(r".*/node_device_(\w+)\.c", impl)
+ if implmatch is None:
+ implmatch = re.search(r".*/(\w+?)_((\w+)_)?(\w+)\.c",
impl)
+ if implmatch is None:
+ raise Exception("Unexpected impl format '%s'" %
impl)
+ impl = implmatch.group(1)
+
+ if impl in groups[ingrp]["drivers"]:
+ raise Exception(
+ "Group %s already contains %s" % (ingrp, impl))
+
+ groups[ingrp]["drivers"][impl] = {}
+ else:
+ callbackmatch = re.search(r"\s*\.(\w+)\s*=\s*(\w+)\s*,?\s*" +
+ r"(?:/\*\s*(\d+\.\d+\.\d+)\s*" +
+
r"(?:-\s*(\d+\.\d+\.\d+))?\s*\*/\s*)?$",
+ line)
+ if callbackmatch is not None:
+ api = callbackmatch.group(1)
+ meth = callbackmatch.group(2)
+ vers = callbackmatch.group(3)
+ deleted = callbackmatch.group(4)
+
+ if api == "no" or api == "name":
+ continue
+
+ if meth == "NULL" and deleted is None:
+ raise Exception(
+ ("Method impl for %s is NULL, but " +
+ "no deleted version is provided") % api)
+
+ if meth != "NULL" and deleted is not None:
+ raise Exception(
+ ("Method impl for %s is non-NULL, but " +
+ "deleted version is provided") % api)
+
+ if vers is None and api != "connectURIProbe":
+ raise Exception(
+ "Method %s in %s is missing version" %
+ (meth, src))
+
+ if api not in groups[ingrp]["apis"]:
+ if re.search(r"\w+(Open|Close|URIProbe)", api):
+ continue
+
+ raise Exception("Found unexpected method " +
+ "%s in %s" % (api, ingrp))
+
+ groups[ingrp]["drivers"][impl][api] = {
+ "vers": vers,
+ "deleted": deleted,
+ }
+
+ if (api == "domainMigratePrepare" or
+ api == "domainMigratePrepare2" or
+ api == "domainMigratePrepare3"):
+ if ("domainMigrate" not in
+ groups[ingrp]["drivers"][impl]):
+
groups[ingrp]["drivers"][impl]["domainMigrate"] = {
+ "vers": vers,
+ }
+ elif line.find("}") != -1:
+ ingrp = None
+
+
+# The '.open' driver method is used for 3 public APIs, so we
+# have a bit of manual fixup todo with the per-driver versioning
+# and support matrix
+
+groups["virHypervisorDriver"]["apis"]["openAuth"] = \
+ "virConnectOpenAuth"
+groups["virHypervisorDriver"]["apis"]["openReadOnly"] = \
+ "virConnectOpenReadOnly"
+groups["virHypervisorDriver"]["apis"]["domainMigrate"] = \
+ "virDomainMigrate"
+
+openAuthVers = (0 * 1000 * 1000) + (4 * 1000) + 0
+
+drivers = groups["virHypervisorDriver"]["drivers"]
+for drv in drivers.keys():
+ openVersStr = drivers[drv]["connectOpen"]["vers"]
+ openVers = 0
+ if openVersStr != "Y":
+ openVersBits = openVersStr.split(".")
+ if len(openVersBits) != 3:
+ raise Exception("Expected 3 digit version for %s" % openVersStr)
+ openVers = ((int(openVersBits[0]) * 1000 * 1000) +
+ (int(openVersBits[1]) * 1000) +
+ int(openVersBits[2]))
+
+ # virConnectOpenReadOnly always matches virConnectOpen version
+ drivers[drv]["connectOpenReadOnly"] = \
+ drivers[drv]["connectOpen"]
+
+ # virConnectOpenAuth is always 0.4.0 if the driver existed
+ # before this time, otherwise it matches the version of
+ # the driver's virConnectOpen entry
+ if openVersStr == "Y" or openVers >= openAuthVers:
+ vers = openVersStr
+ else:
+ vers = "0.4.0"
+ drivers[drv]["connectOpenAuth"] = {
+ "vers": vers,
+ }
+
+
+# Another special case for the virDomainCreateLinux which was replaced
+# with virDomainCreateXML
+groups["virHypervisorDriver"]["apis"]["domainCreateLinux"]
= \
+ "virDomainCreateLinux"
+
+createAPIVers = (0 * 1000 * 1000) + (0 * 1000) + 3
+
+for drv in drivers.keys():
+ if "domainCreateXML" not in drivers[drv]:
+ continue
+ createVersStr = drivers[drv]["domainCreateXML"]["vers"]
+ createVers = 0
+ if createVersStr != "Y":
+ createVersBits = createVersStr.split(".")
+ if len(createVersBits) != 3:
+ raise Exception("Expected 3 digit version for %s" % createVersStr)
+ createVers = ((int(createVersBits[0]) * 1000 * 1000) +
+ (int(createVersBits[1]) * 1000) +
+ int(createVersBits[2]))
+
+ # virCreateLinux is always 0.0.3 if the driver existed
+ # before this time, otherwise it matches the version of
+ # the driver's virCreateXML entry
+ if createVersStr == "Y" or createVers >= createAPIVers:
+ vers = createVersStr
+ else:
+ vers = "0.0.3"
+
+ drivers[drv]["domainCreateLinux"] = {
+ "vers": vers,
+ }
+
+
+# Finally we generate the HTML file with the tables
+
+print('''<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE html>
+<html xmlns="http://www.w3.org/1999/xhtml">
+<body class="hvsupport">
+<h1>libvirt API support matrix</h1>
+
+<ul id="toc"></ul>
+
+<p>
+This page documents which <a href="html/">libvirt calls</a> work
on
+which libvirt drivers / hypervisors, and which version the API appeared
+in. If a hypervisor driver later dropped support for the API, the version
+when it was removed is also mentioned (highlighted in
+<span class="removedhv">dark red</span>).
+</p>
+''')
+
+for grp in sorted(groups.keys()):
+ print("<h2><a id=\"%s\">%s</a></h2>" %
(grp, groupheaders[grp]))
+ print('''<table class="top_table">
+<thead>
+<tr>
+<th>API</th>
+<th>Version</th>''')
+
+ for drv in sorted(groups[grp]["drivers"].keys()):
+ print(" <th>%s</th>" % drv)
+
+ print('''</tr>
+</thead>
+<tbody>''')
+
+ row = 0
+
+ def sortkey(field):
+ return groups[grp]["apis"][field]
+
+ for field in sorted(groups[grp]["apis"].keys(), key=sortkey):
+ api = groups[grp]["apis"][field]
+ vers = apis[api]["vers"]
+ htmlgrp = apis[api].get("file")
+ print("<tr>")
+
+ if htmlgrp is not None:
+ print(('''<td>\n<a
href=\"html/libvirt-%s.html#%s\">''' +
+ '''%s</a>\n</td>''') %
+ (htmlgrp, api, api))
+ else:
+ print("<td>\n%s</td>" % api)
+
+ print("<td>%s</td>" % vers)
+
+ for drv in sorted(groups[grp]["drivers"].keys()):
+ info = ""
+ if field in groups[grp]["drivers"][drv]:
+ vers = groups[grp]["drivers"][drv][field]["vers"]
+ if vers is not None:
+ info = info + vers
+
+ deleted =
groups[grp]["drivers"][drv][field].get("deleted")
+ if deleted is not None:
+ info = info + (''' - <span
class="removedhv">''' +
+ '''%s</span>''' %
deleted)
+
+ print("<td>%s</td>" % info)
+
+ print("</tr>")
+
+ row = row + 1
+ if (row % 15) == 0:
+ print('''<tr>
+<th>API</th>
+<th>Version</th>''')
+
+ for drv in sorted(groups[grp]["drivers"].keys()):
+ print(" <th>%s</th>" % drv)
+
+ print("</tr>")
+
+ print("</tbody>\n</table>")
+
+print("</body>\n</html>")
--
2.21.0