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mirror of https://github.com/pgbackrest/pgbackrest.git synced 2024-12-12 10:04:14 +02:00
pgbackrest/doc/doc.pl
David Steele 0a96a2895d Add storage layer for tests and documentation.
The tests and documentation have been using the core storage layer but soon that will depend entirely on the C library, creating a bootstrap problem (i.e. the storage layer will be needed to build the C library).

Create a simplified Posix storage layer to be used by documentation and the parts of the test code that build and execute the actual tests.  The actual tests will still use the core storage driver so they can interact with any type of storage.
2019-06-17 09:16:44 -04:00

387 lines
13 KiB
Perl
Executable File

#!/usr/bin/perl
####################################################################################################################################
# doc.pl - PgBackRest Doc Builder
####################################################################################################################################
####################################################################################################################################
# Perl includes
####################################################################################################################################
use strict;
use warnings FATAL => qw(all);
use Carp qw(confess);
use English '-no_match_vars';
$SIG{__DIE__} = sub { Carp::confess @_ };
use Cwd qw(abs_path);
use File::Basename qw(dirname);
use Getopt::Long qw(GetOptions);
use Pod::Usage qw(pod2usage);
use Storable;
use lib dirname(abs_path($0)) . '/lib';
use lib dirname(dirname(abs_path($0))) . '/lib';
use lib dirname(dirname(abs_path($0))) . '/build/lib';
use lib dirname(dirname(abs_path($0))) . '/test/lib';
use BackRestDoc::Common::Doc;
use BackRestDoc::Common::DocConfig;
use BackRestDoc::Common::DocManifest;
use BackRestDoc::Common::DocRender;
use BackRestDoc::Html::DocHtmlSite;
use BackRestDoc::Latex::DocLatex;
use BackRestDoc::Markdown::DocMarkdown;
use pgBackRest::Common::Exception;
use pgBackRest::Common::Log;
use pgBackRest::Common::String;
use pgBackRest::Version;
use pgBackRestTest::Common::ExecuteTest;
use pgBackRestTest::Common::Storage;
use pgBackRestTest::Common::StoragePosix;
####################################################################################################################################
# Usage
####################################################################################################################################
=head1 NAME
doc.pl - Generate pgBackRest documentation
=head1 SYNOPSIS
doc.pl [options]
General Options:
--help Display usage and exit
--version Display pgBackRest version
--quiet Sets log level to ERROR
--log-level Log level for execution (e.g. ERROR, WARN, INFO, DEBUG)
--deploy Write exe.cache into resource for persistence
--no-exe Should commands be executed when building help? (for testing only)
--no-cache Don't use execution cache
--cache-only Only use the execution cache - don't attempt to generate it
--pre Pre-build containers for execute elements marked pre
--var Override defined variable
--key-var Override defined variable and use in cache key
--doc-path Document path to render (manifest.xml should be located here)
--out Output types (html, pdf, markdown)
--out-preserve Don't clean output directory
--require Require only certain sections of the document (to speed testing)
--include Include source in generation (links will reference website)
--exclude Exclude source from generation (links will reference website)
Variable Options:
--dev Set 'dev' variable to 'y'
--debug Set 'debug' variable to 'y'
=cut
####################################################################################################################################
# Load command line parameters and config (see usage above for details)
####################################################################################################################################
my $bHelp = false;
my $bVersion = false;
my $bQuiet = false;
my $strLogLevel = 'info';
my $bNoExe = false;
my $bNoCache = false;
my $bCacheOnly = false;
my $rhVariableOverride = {};
my $rhKeyVariableOverride = {};
my $strDocPath;
my @stryOutput;
my $bOutPreserve = false;
my @stryRequire;
my @stryInclude;
my @stryExclude;
my $bDeploy = false;
my $bDev = false;
my $bDebug = false;
my $bPre = false;
GetOptions ('help' => \$bHelp,
'version' => \$bVersion,
'quiet' => \$bQuiet,
'log-level=s' => \$strLogLevel,
'out=s@' => \@stryOutput,
'out-preserve' => \$bOutPreserve,
'require=s@' => \@stryRequire,
'include=s@' => \@stryInclude,
'exclude=s@' => \@stryExclude,
'no-exe', \$bNoExe,
'deploy', \$bDeploy,
'no-cache', \$bNoCache,
'dev', \$bDev,
'debug', \$bDebug,
'pre', \$bPre,
'cache-only', \$bCacheOnly,
'key-var=s%', $rhKeyVariableOverride,
'var=s%', $rhVariableOverride,
'doc-path=s', \$strDocPath)
or pod2usage(2);
####################################################################################################################################
# Run in eval block to catch errors
####################################################################################################################################
eval
{
# Display version and exit if requested
if ($bHelp || $bVersion)
{
print PROJECT_NAME . ' ' . PROJECT_VERSION . " Documentation Builder\n";
if ($bHelp)
{
print "\n";
pod2usage();
}
exit 0;
}
# Disable cache when no exe
if ($bNoExe)
{
$bNoCache = true;
}
# Make sure options are set correctly for deploy
if ($bDeploy)
{
my $strError = 'cannot be specified for deploy';
!$bNoExe
or confess "--no-exe ${strError}";
!@stryRequire
or confess "--require ${strError}";
}
# one --include must be specified when --required is
if (@stryRequire && @stryInclude != 1)
{
confess "one --include is required when --require is specified";
}
# Set console log level
if ($bQuiet)
{
$strLogLevel = 'error';
}
# If --dev passed then set the dev var to 'y'
if ($bDev)
{
$rhVariableOverride->{'dev'} = 'y';
}
# If --debug passed then set the debug var to 'y'
if ($bDebug)
{
$rhVariableOverride->{'debug'} = 'y';
}
# Doesn't make sense to pass include and exclude
if (@stryInclude > 0 && @stryExclude > 0)
{
confess "cannot specify both --include and --exclude";
}
logLevelSet(undef, uc($strLogLevel), OFF);
# Get the base path
my $strBasePath = abs_path(dirname($0));
my $oStorageDoc = new pgBackRestTest::Common::Storage(
$strBasePath, new pgBackRestTest::Common::StoragePosix({bFileSync => false, bPathSync => false}));
if (!defined($strDocPath))
{
$strDocPath = $strBasePath;
}
my $strOutputPath = "${strDocPath}/output";
# Create the out path if it does not exist
if (!-e $strOutputPath)
{
mkdir($strOutputPath)
or confess &log(ERROR, "unable to create path ${strOutputPath}");
}
# Merge key variables into the variable list and ensure there are no duplicates
foreach my $strKey (sort(keys(%{$rhKeyVariableOverride})))
{
if (defined($rhVariableOverride->{$strKey}))
{
confess &log(ERROR, "'${strKey}' canot be passed as --var and --key-var");
}
$rhVariableOverride->{$strKey} = $rhKeyVariableOverride->{$strKey};
}
# Load the manifest
my $oManifest = new BackRestDoc::Common::DocManifest(
$oStorageDoc, \@stryRequire, \@stryInclude, \@stryExclude, $rhKeyVariableOverride, $rhVariableOverride,
$strDocPath, $bDeploy, $bCacheOnly, $bPre);
if (!$bNoCache)
{
$oManifest->cacheRead();
}
# If no outputs were given
if (@stryOutput == 0)
{
@stryOutput = $oManifest->renderList();
if ($oManifest->isBackRest())
{
push(@stryOutput, 'man');
}
}
# Build host containers
if (!$bCacheOnly && !$bNoExe)
{
foreach my $strSource ($oManifest->sourceList())
{
if ((@stryInclude == 0 || grep(/$strSource/, @stryInclude)) && !grep(/$strSource/, @stryExclude))
{
&log(INFO, "source $strSource");
foreach my $oHostDefine ($oManifest->sourceGet($strSource)->{doc}->nodeList('host-define', false))
{
if ($oManifest->evaluateIf($oHostDefine))
{
my $strImage = $oManifest->variableReplace($oHostDefine->paramGet('image'));
my $strFrom = $oManifest->variableReplace($oHostDefine->paramGet('from'));
my $strDockerfile = "${strOutputPath}/doc-host.dockerfile";
&log(INFO, "Build vm '${strImage}' from '${strFrom}'");
$oStorageDoc->put(
$strDockerfile,
"FROM ${strFrom}\n\n" . trim($oManifest->variableReplace($oHostDefine->valueGet())) . "\n");
executeTest("docker build -f ${strDockerfile} -t ${strImage} ${strBasePath}");
}
}
}
}
}
# Render output
for my $strOutput (@stryOutput)
{
if (!($strOutput eq 'man' && $oManifest->isBackRest()))
{
$oManifest->renderGet($strOutput);
}
&log(INFO, "render ${strOutput} output");
# Clean contents of out directory
if (!$bOutPreserve)
{
my $strOutputPath = $strOutput eq 'pdf' ? "${strOutputPath}/latex" : "${strOutputPath}/$strOutput";
# Clean the current out path if it exists
if (-e $strOutputPath)
{
executeTest("rm -rf ${strOutputPath}/*");
}
# Else create the html path
else
{
mkdir($strOutputPath)
or confess &log(ERROR, "unable to create path ${strOutputPath}");
}
}
if ($strOutput eq 'markdown')
{
my $oMarkdown =
new BackRestDoc::Markdown::DocMarkdown
(
$oManifest,
"${strBasePath}/xml",
"${strOutputPath}/markdown",
!$bNoExe
);
$oMarkdown->process();
}
elsif ($strOutput eq 'man' && $oManifest->isBackRest())
{
# Generate the command-line help
my $oRender = new BackRestDoc::Common::DocRender('text', $oManifest, !$bNoExe);
my $oDocConfig =
new BackRestDoc::Common::DocConfig(
new BackRestDoc::Common::Doc("${strBasePath}/xml/reference.xml"), $oRender);
$oStorageDoc->pathCreate(
"${strBasePath}/output/man", {strMode => '0770', bIgnoreExists => true, bCreateParent => true});
$oStorageDoc->put("${strBasePath}/output/man/" . lc(PROJECT_NAME) . '.1.txt', $oDocConfig->manGet($oManifest));
}
elsif ($strOutput eq 'html')
{
my $oHtmlSite =
new BackRestDoc::Html::DocHtmlSite
(
$oManifest,
"${strBasePath}/xml",
"${strOutputPath}/html",
"${strBasePath}/resource/html/default.css",
defined($oManifest->variableGet('project-favicon')) ?
"${strBasePath}/resource/html/" . $oManifest->variableGet('project-favicon') : undef,
defined($oManifest->variableGet('project-logo')) ?
"${strBasePath}/resource/" . $oManifest->variableGet('project-logo') : undef,
!$bNoExe
);
$oHtmlSite->process();
}
elsif ($strOutput eq 'pdf')
{
my $oLatex =
new BackRestDoc::Latex::DocLatex
(
$oManifest,
"${strBasePath}/xml",
"${strOutputPath}/latex",
"${strBasePath}/resource/latex/preamble.tex",
!$bNoExe
);
$oLatex->process();
}
}
# Cache the manifest (mostly useful for testing rendering changes in the code)
if (!$bNoCache && !$bCacheOnly)
{
$oManifest->cacheWrite();
}
# Exit with success
exit 0;
}
####################################################################################################################################
# Check for errors
####################################################################################################################################
or do
{
# If a backrest exception then return the code
exit $EVAL_ERROR->code() if (isException(\$EVAL_ERROR));
# Else output the unhandled error
print $EVAL_ERROR;
exit ERROR_UNHANDLED;
};
# It shouldn't be possible to get here
&log(ASSERT, 'execution reached invalid location in ' . __FILE__ . ', line ' . __LINE__);
exit ERROR_ASSERT;