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<?php
/**
* +----------------------------------------------------------------------+
* | Copyright (c) 1997-2023 The PHP Group |
* +----------------------------------------------------------------------+
* | This source file is subject to version 3.01 of the PHP license, |
* | that is bundled with this package in the file LICENSE, and is |
* | available through the world-wide-web at the following url: |
* | https://www.php.net/license/3_01.txt. |
* | If you did not receive a copy of the PHP license and are unable to |
* | obtain it through the world-wide-web, please send a note to |
* | license@php.net, so we can mail you a copy immediately. |
* +----------------------------------------------------------------------+
* | Authors: André L F S Bacci <ae php.net> |
* +----------------------------------------------------------------------+
* | Description: Parse `git log` to complement file state. |
* +----------------------------------------------------------------------+
*/
require_once __DIR__ . '/all.php';
class GitLogParser
{
static function parseInto( string $lang , RevcheckFileList & $list )
{
$cwd = getcwd();
chdir( $lang );
$fp = popen( "git log --name-only" , "r" );
chdir( $cwd );
$hash = "";
$date = "";
$skip = false;
$mcnt = 0;
while ( ( $line = fgets( $fp ) ) !== false )
{
// new commit block
if ( substr( $line , 0 , 7 ) == "commit " )
{
$hash = trim( substr( $line , 7 ) );
$date = "";
$skip = false;
$mcnt = 0;
continue;
}
// datetime of commit
if ( strpos( $line , 'Date:' ) === 0 )
{
$line = trim( substr( $line , 5 ) );
$date = strtotime( $line );
continue;
}
// empty lines
if ( trim( $line ) == "" )
continue;
// commit message
if ( str_starts_with( $line , ' ' ) )
{
if ( LOOSE_SKIP_REVCHECK ) // See below, and https://github.com/php/doc-base/pull/132
{
// commits with [skip-revcheck] anywhere commit message flags skip
if ( str_contains( $line, '[skip-revcheck]' ) )
$skip = true;
}
else
{
$mcnt++;
// [skip-revcheck] at start of first line of commit message flags a skip
if ( $mcnt == 1 && str_starts_with( trim( $line ) , '[skip-revcheck]' ) )
$skip = true;
}
continue;
}
// other headers
if ( strpos( $line , ': ' ) > 0 )
continue;
// otherwise, a filename
$filename = trim( $line );
$info = $list->get( $filename );
// untracked file (deleted, renamed)
if ( $info == null )
continue;
$info->addGitLogData( $hash , $date , $skip );
}
pclose( $fp );
}
static function parseDir( string $gdir , RevcheckFileList $list )
{
$gdir = escapeshellarg( $gdir );
$proc = new GitLogParserProc( "git -C $gdir log --name-only" );
$hash = "";
$date = "";
$skip = false;
$lcnt = 0;
while ( $proc->live )
{
// Hash
if ( str_starts_with( $proc->line , "commit " ) )
{
$hash = trim( substr( $proc->line , 7 ) );
$date = "";
$skip = false;
$lcnt = 0;
$proc->next();
}
else
throw new Exception( "Expected commit hash." );
// Headers
while ( $proc->live && strlen( trim( $proc->line ) ) > 0 )
{
// Date
if ( str_starts_with( $proc->line , 'Date:' ) )
{
$line = trim( substr( $proc->line , 5 ) );
$date = strtotime( $line );
$proc->next();
continue;
}
// Other headers
if ( $proc->line[0] != ' ' && strpos( $proc->line , ':' ) > 0 )
{
$proc->next();
continue;
}
break;
}
$proc->skip(); // Empty Line
// Message
while ( $proc->live && str_starts_with( $proc->line , ' ' ) )
{
if ( LOOSE_SKIP_REVCHECK ) // https://github.com/php/doc-base/pull/132
{
// Messages that contains [skip-revcheck] flags entire commit as ignored.
if ( str_contains( $proc->line , '[skip-revcheck]' ) )
$skip = true;
}
else
{
// Messages that start with [skip-revcheck] flags entire commit as ignored.
$lcnt++;
if ( $lcnt == 1 && str_starts_with( trim( $line ) , '[skip-revcheck]' ) )
$skip = true;
}
$proc->next();
}
$proc->skip(); // Empty Line
// Merge commits and empty files commits
// Merge commits are not followed with file listings.
// Some normal commits also not have file listings
// (see b73609198d4606621f57e165efc457f30e403217).
if ( str_starts_with( $proc->line , "commit " ) )
continue;
// Files
while ( $proc->live && strlen( trim( $proc->line ) ) > 0 )
{
$file = $list->get( trim( $proc->line ) );
if ( $file != null )
$file->addGitLogData( $hash , $date , $skip );
$proc->next();
}
$proc->skip(); // Empty Line
}
}
}
class GitLogParserProc
{
public bool $live;
public string $line;
private $proc = null;
function __construct( string $command )
{
$this->proc = popen( $command , "r" );
$this->live = true;
$this->next();
}
function next()
{
if ( $this->proc == null )
return;
$ret = fgets( $this->proc );
if ( $ret === false )
$this->stop();
else
$this->line = $ret;
}
function skip()
{
if ( trim( $this->line ) != "" )
throw new Exception( "Skipping non-blank line." );
$this->next();
}
function stop()
{
pclose( $this->proc );
$this->live = false;
$this->line = "";
$this->proc = null;
}
}
|
