334 lines
9.7 KiB
C++
334 lines
9.7 KiB
C++
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////////////////////////////////////////////////////////////////////////
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// FILE: package.cpp
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// AUTHOR: Johannes Winkelmann, jw@tks6.net
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// COPYRIGHT: (c) 2002 by Johannes Winkelmann
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// ---------------------------------------------------------------------
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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////////////////////////////////////////////////////////////////////////
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#include <iostream>
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#include <cstdio>
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#include <sys/stat.h>
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#include <sys/utsname.h>
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using namespace std;
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#include "package.h"
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#include "stringhelper.h"
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using namespace StringHelper;
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/*!
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Create a package, which is not yet fully initialized, This is interesting
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in combination with the lazy initialization
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*/
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Package::Package( const string& name,
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const string& path )
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: m_loaded( false )
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{
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m_data = new PackageData( name, path );
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}
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/*!
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Create a fully initialized package. Most interesting when created from a
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cache file
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*/
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Package::Package( const string& name,
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const string& path,
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const string& version,
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const string& release,
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const string& description,
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const string& dependencies,
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const string& url,
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const string& packager,
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const string& maintainer,
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const string& hasReadme,
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const string& hasPreInstall,
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const string& hasPostInstall)
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: m_loaded( true )
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{
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m_data = new PackageData( name, path, version, release,
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description, dependencies, url,
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packager, maintainer, hasReadme,
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hasPreInstall, hasPostInstall );
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}
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Package::~Package()
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{
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delete m_data;
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}
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/*! \return the name of this package */
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const string& Package::name() const
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{
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return m_data->name;
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}
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/*! \return the path to this package */
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const string& Package::path() const
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{
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return m_data->path;
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}
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/*! \return the version of this package */
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const string& Package::version() const
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{
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load();
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return m_data->version;
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}
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/*! \return the release number of this package */
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const string& Package::release() const
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{
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load();
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return m_data->release;
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}
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/*! \return the description field of this package */
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const string& Package::description() const
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{
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load();
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return m_data->description;
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}
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/*! \return the dependency line of this package */
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const string& Package::dependencies() const
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{
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load();
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return m_data->depends;
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}
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/*! \return the url of this package */
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const string& Package::url() const
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{
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load();
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return m_data->url;
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}
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/*! \return the packager of this package */
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const string& Package::packager() const
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{
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load();
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return m_data->packager;
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}
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/*! \return the maintainer of this package */
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const string& Package::maintainer() const
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{
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load();
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return m_data->maintainer;
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}
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/*! \return whether or not this package has a readme file */
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const bool Package::hasReadme() const
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{
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load();
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return m_data->hasReadme;
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}
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const bool Package::hasPreInstall() const
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{
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return m_data->hasPreInstall;
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}
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const bool Package::hasPostInstall() const
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{
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return m_data->hasPostInstall;
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}
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/*!
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load from Pkgfile
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*/
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void Package::load() const
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{
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if ( m_loaded ) {
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return;
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}
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m_loaded = true;
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string fileName = m_data->path + "/" + m_data->name + "/Pkgfile";
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// c IO is about four times faster then fstream :-(
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FILE* fp = fopen( fileName.c_str(), "r" );
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if ( fp == NULL ) {
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return;
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}
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const int length = BUFSIZ;
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char input[length];
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string line;
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time_t timeNow;
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time(&timeNow);
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struct utsname unameBuf;
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if (uname(&unameBuf) != 0) {
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unameBuf.release[0] = '\0';
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}
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while ( fgets( input, length, fp ) ) {
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line = stripWhiteSpace( input );
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if ( line.substr( 0, 8 ) == "version=" ) {
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m_data->version = getValueBefore( getValue( line, '=' ), '#' );
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m_data->version = stripWhiteSpace( m_data->version );
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expandShellCommands(m_data->version, timeNow, unameBuf);
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} else if ( line.substr( 0, 8 ) == "release=" ) {
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m_data->release = getValueBefore( getValue( line, '=' ), '#' );
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m_data->release = stripWhiteSpace( m_data->release );
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} else if ( line[0] == '#' ) {
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while ( !line.empty() &&
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( line[0] == '#' || line[0] == ' ' || line[0] == '\t' ) ) {
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line = line.substr( 1 );
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}
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string::size_type pos = line.find( ':' );
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if ( pos != string::npos ) {
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if ( startwith_nocase( line, "desc" ) ) {
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m_data->description =
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stripWhiteSpace( getValue( line, ':' ) );
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} else if ( startwith_nocase( line, "pack" ) ) {
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m_data->packager =
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stripWhiteSpace( getValue( line, ':' ) );
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} else if ( startwith_nocase( line, "maint" ) ) {
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m_data->maintainer =
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stripWhiteSpace( getValue( line, ':' ) );
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} else if ( startwith_nocase( line, "url" ) ) {
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m_data->url = stripWhiteSpace( getValue( line, ':' ) );
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} else if ( startwith_nocase( line, "dep" ) ) {
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string depends = stripWhiteSpace( getValue( line, ':' ) );
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StringHelper::replaceAll( depends, " ", "," );
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StringHelper::replaceAll( depends, ",,", "," );
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// TODO: decide which one to use
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#if 0
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// remove commented out packages
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list<string> deps = StringHelper::split( depends, ',' );
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list<string>::iterator it = deps.begin();
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for ( ; it != deps.end(); ++it ) {
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if ( (*it)[0] == '#' ) {
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cerr << "Commented dep: " << *it << endl;
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} else {
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if ( it != deps.begin() ) {
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m_data->depends += ",";
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}
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m_data->depends += *it;
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}
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}
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#else
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m_data->depends = depends;
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#endif
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}
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}
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}
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}
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fclose( fp );
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string file = m_data->path + "/" + m_data->name + "/README";
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struct stat buf;
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if ( stat( file.c_str(), &buf ) != -1) {
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m_data->hasReadme = true;
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}
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file = m_data->path + "/" + m_data->name + "/pre-install";
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if ( stat( file.c_str(), &buf ) != -1) {
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m_data->hasPreInstall = true;
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}
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file = m_data->path + "/" + m_data->name + "/post-install";
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if ( stat( file.c_str(), &buf ) != -1) {
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m_data->hasPostInstall = true;
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}
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}
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void Package::setDependencies( const std::string& dependencies )
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{
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m_data->depends = dependencies;
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}
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PackageData::PackageData( const string& name_,
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const string& path_,
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const string& version_,
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const string& release_,
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const string& description_,
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const string& dependencies_,
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const string& url_,
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const string& packager_,
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const string& maintainer_,
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const string& hasReadme_,
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const string& hasPreInstall_,
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const string& hasPostInstall_ )
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: name( name_ ),
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path( path_ ),
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version( version_ ),
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release( release_ ),
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description( description_ ),
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depends( dependencies_ ),
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url( url_ ),
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packager( packager_ ),
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maintainer( maintainer_ )
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{
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hasReadme = ( stripWhiteSpace( hasReadme_ ) == "yes" );
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hasPreInstall = ( stripWhiteSpace( hasPreInstall_ ) == "yes" );
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hasPostInstall = ( stripWhiteSpace( hasPostInstall_ ) == "yes" );
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}
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void Package::expandShellCommands(std::string& input,
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const time_t& timeNow,
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const struct utsname unameBuf)
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{
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// TODO: consider dropping either of the tagsets, depending on feedback
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static const int TAG_COUNT = 2;
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string startTag[TAG_COUNT] = { "`", "$(" };
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string endTag[TAG_COUNT] = { "`", ")" };
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for (int i = 0; i < TAG_COUNT; ++i) {
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string::size_type pos;
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while ((pos = input.find(startTag[i])) != string::npos) {
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if (unameBuf.release) {
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input = replaceAll(input,
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startTag[i] + "uname -r" + endTag[i],
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unameBuf.release);
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}
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pos = input.find(startTag[i] + "date");
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if (pos != string::npos) {
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// NOTE: currently only works for one date pattern
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string::size_type startpos, endpos;
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endpos = input.find(endTag[i], pos+1);
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startpos = input.find('+', pos+1);
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string format = input.substr(startpos+1, endpos-startpos-1);
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// support date '+...' and date "+..."
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int len = format.length();
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if (format[len-1] == '\'' || format[len-1] == '"') {
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format = format.substr(0, len-1);
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}
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char timeBuf[32];
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strftime(timeBuf, 32, format.c_str(), localtime(&timeNow));
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input = input.substr(0, pos) + timeBuf +
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input.substr(endpos+1);
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}
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}
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}
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}
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