1
0
mirror of https://github.com/pgbackrest/pgbackrest.git synced 2025-07-17 01:12:23 +02:00

Migrate man page generation to C.

This commit is contained in:
David Steele
2024-01-23 09:56:26 -03:00
parent 676700d8ca
commit 1a0cc96c5a
12 changed files with 429 additions and 241 deletions

View File

@ -298,223 +298,4 @@ sub process
logDebugReturn($strOperation);
}
####################################################################################################################################
# manGet
#
# Generate the man page.
####################################################################################################################################
sub manGet
{
my $self = shift;
# Assign function parameters, defaults, and log debug info
my
(
$strOperation,
$oManifest
) =
logDebugParam
(
__PACKAGE__ . '->manGet', \@_,
{name => 'oManifest'}
);
# Get index.xml to pull various text from
my $oIndexDoc = ${$oManifest->sourceGet('index')}{doc};
# Write the header
my $strManPage =
"NAME\n" .
' ' . PROJECT_NAME . ' - ' . $oManifest->variableReplace($oIndexDoc->paramGet('subtitle')) . "\n\n" .
"SYNOPSIS\n" .
' ' . PROJECT_EXE . ' [options] [command]';
# Output the description (first two paragraphs of index.xml introduction)
my $iParaTotal = 0;
$strManPage .= "\n\n" .
"DESCRIPTION";
foreach my $oPara ($oIndexDoc->nodeGetById('section', 'introduction')->nodeList('p'))
{
$strManPage .= ($iParaTotal == 0 ? "\n" : "\n\n") . ' ' .
manGetFormatText($oManifest->variableReplace($self->{oDocRender}->processText($oPara->textGet())), 80, 2);
last;
}
# Build command and config hashes
my $hConfigDefine = cfgDefine();
my $hConfig = $self->{oConfigHash};
my $hCommandList = {};
my $iCommandMaxLen = 0;
my $hOptionList = {};
my $iOptionMaxLen = 0;
foreach my $strCommand (sort(keys(%{$$hConfig{&CONFIG_HELP_COMMAND}})))
{
# Skip internal commands
next if $hConfig->{&CONFIG_HELP_COMMAND}{$strCommand}{&CONFIG_HELP_INTERNAL};
my $hCommand = $$hConfig{&CONFIG_HELP_COMMAND}{$strCommand};
$iCommandMaxLen = length($strCommand) > $iCommandMaxLen ? length($strCommand) : $iCommandMaxLen;
$$hCommandList{$strCommand}{summary} = $$hCommand{&CONFIG_HELP_SUMMARY};
if (defined($$hCommand{&CONFIG_HELP_OPTION}))
{
foreach my $strOption (sort(keys(%{$$hCommand{&CONFIG_HELP_OPTION}})))
{
my $hOption = $$hCommand{&CONFIG_HELP_OPTION}{$strOption};
if ($$hOption{&CONFIG_HELP_SOURCE} eq CONFIG_HELP_SOURCE_COMMAND)
{
# Skip internal options
next if $hOption->{&CONFIG_HELP_INTERNAL};
$iOptionMaxLen = length($strOption) > $iOptionMaxLen ? length($strOption) : $iOptionMaxLen;
$$hOptionList{$strCommand}{$strOption}{&CONFIG_HELP_SUMMARY} = $$hOption{&CONFIG_HELP_SUMMARY};
}
}
}
}
foreach my $strOption (sort(keys(%{$$hConfig{&CONFIG_HELP_OPTION}})))
{
# Skip internal options
next if $hConfig->{&CONFIG_HELP_OPTION}{$strOption}{&CONFIG_HELP_INTERNAL};
my $hOption = $$hConfig{&CONFIG_HELP_OPTION}{$strOption};
$iOptionMaxLen = length($strOption) > $iOptionMaxLen ? length($strOption) : $iOptionMaxLen;
my $strSection = defined($$hOption{&CONFIG_HELP_SECTION}) ? $$hOption{&CONFIG_HELP_SECTION} : CFGDEF_GENERAL;
$$hOptionList{$strSection}{$strOption}{&CONFIG_HELP_SUMMARY} = $$hOption{&CONFIG_HELP_SUMMARY};
}
# Output Commands
$strManPage .= "\n\n" .
'COMMANDS';
foreach my $strCommand (sort(keys(%{$hCommandList})))
{
# Construct the summary
my $strSummary = $oManifest->variableReplace($self->{oDocRender}->processText($$hCommandList{$strCommand}{summary}));
# $strSummary = lcfirst(substr($strSummary, 0, length($strSummary) - 1));
# Output the summary
$strManPage .=
"\n " . "${strCommand}" . (' ' x ($iCommandMaxLen - length($strCommand))) . ' ' .
manGetFormatText($strSummary, 80, $iCommandMaxLen + 4);
}
# Output options
my $bFirst = true;
$strManPage .= "\n\n" .
'OPTIONS';
foreach my $strSection (sort(keys(%{$hOptionList})))
{
$strManPage .= ($bFirst ?'' : "\n") . "\n " . ucfirst($strSection) . ' Options:';
foreach my $strOption (sort(keys(%{$$hOptionList{$strSection}})))
{
my $hOption = $$hOptionList{$strSection}{$strOption};
# Construct the default
my $strCommand = grep(/$strSection/i, cfgDefineCommandList()) ? $strSection : undef;
my $strDefault = docConfigOptionDefault($strOption, $strCommand);
if (defined($strDefault))
{
if ($strOption eq CFGOPT_REPO_HOST_CMD || $strOption eq CFGOPT_PG_HOST_CMD)
{
$strDefault = PROJECT_EXE;
}
elsif ($$hConfigDefine{$strOption}{&CFGDEF_TYPE} eq &CFGDEF_TYPE_BOOLEAN)
{
$strDefault = $strDefault ? 'y' : 'n';
}
}
#
# use Data::Dumper; confess Dumper($$hOption{&CONFIG_HELP_SUMMARY});
# Construct the summary
my $strSummary = $oManifest->variableReplace($self->{oDocRender}->processText($$hOption{&CONFIG_HELP_SUMMARY}));
$strSummary = $strSummary . (defined($strDefault) ? " [default=${strDefault}]" : '');
# Output the summary
$strManPage .=
"\n " . "--${strOption}" . (' ' x ($iOptionMaxLen - length($strOption))) . ' ' .
manGetFormatText($strSummary, 80, $iOptionMaxLen + 8);
}
$bFirst = false;
}
# Write files, examples, and references
$strManPage .= "\n\n" .
"FILES\n" .
"\n" .
' ' . docConfigOptionDefault(CFGOPT_CONFIG) . "\n" .
' ' . docConfigOptionDefault(CFGOPT_REPO_PATH) . "\n" .
' ' . docConfigOptionDefault(CFGOPT_LOG_PATH) . "\n" .
' ' . docConfigOptionDefault(CFGOPT_SPOOL_PATH) . "\n" .
' ' . docConfigOptionDefault(CFGOPT_LOCK_PATH) . "\n" .
"\n" .
"EXAMPLES\n" .
"\n" .
" * Create a backup of the PostgreSQL `main` cluster:\n" .
"\n" .
' $ ' . PROJECT_EXE . ' --' . CFGOPT_STANZA . "=main backup\n" .
"\n" .
' The `main` cluster should be configured in `' . docConfigOptionDefault(CFGOPT_CONFIG) . "`\n" .
"\n" .
" * Show all available backups:\n" .
"\n" .
' $ ' . PROJECT_EXE . ' ' . CFGCMD_INFO . "\n" .
"\n" .
" * Show all available backups for a specific cluster:\n" .
"\n" .
' $ ' . PROJECT_EXE . ' --' . CFGOPT_STANZA . '=main ' . CFGCMD_INFO . "\n" .
"\n" .
" * Show backup specific options:\n" .
"\n" .
' $ ' . PROJECT_EXE . ' ' . CFGCMD_HELP . ' ' . CFGCMD_BACKUP . "\n" .
"\n" .
"SEE ALSO\n" .
"\n" .
' /usr/share/doc/' . PROJECT_EXE . "-doc/html/index.html\n" .
' ' . $oManifest->variableReplace('{[backrest-url-base]}') . "\n";
return $strManPage;
}
# Helper function for manGet() used to format text by indenting and splitting
sub manGetFormatText
{
my $strLine = shift;
my $iLength = shift;
my $iIndentRest = shift;
my $strPart;
my $strResult;
my $bFirst = true;
do
{
my $iIndent = $bFirst ? 0 : $iIndentRest;
($strPart, $strLine) = stringSplit($strLine, ' ', $iLength - $iIndentRest);
$strResult .= ($bFirst ? '' : "\n") . (' ' x $iIndent) . trim($strPart);
$bFirst = false;
}
while (defined($strLine));
return $strResult;
}
1;