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  • Committer: Bazaar Package Importer
  • Author(s): Gürkan Sengün
  • Date: 2004-11-10 23:40:33 UTC
  • Revision ID: james.westby@ubuntu.com-20041110234033-v32mldso2yf8i7v4
Tags: upstream-0.9
Import upstream version 0.9

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LhaArchive.m
 
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#import <Foundation/Foundation.h>
 
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#import "LhaArchive.h"
 
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#import "FileInfo.h"
 
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#import "NSString+Custom.h"
 
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#import "Preferences.h"
 
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#import "NSArray+Custom.h"
 
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@interface LhaArchive (PrivateAPI)
 
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- (NSData *)dataByRunningLha;
 
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@end
 
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@implementation LhaArchive : Archive
 
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/**
 
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 * register our supported file extensions with our superclass.
 
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 */
 
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+ (void)initialize
 
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{
 
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        [self registerFileExtension:@"lha" forArchiveClass:self];
 
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}
 
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+ (NSString *)unarchiveExecutable
 
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{
 
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        return [Preferences lhaExecutable];
 
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}
 
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/**
 
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 * lha archives <em>do</em> contain info about compression ratio.
 
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 */
 
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+ (BOOL)hasRatio;
 
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{
 
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        return YES;
 
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}
 
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+ (NSString *)archiveType
 
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{
 
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        return @"LHA";  
 
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}
 
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//------------------------------------------------------------------------------
 
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// expanding the archive
 
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//------------------------------------------------------------------------------
 
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- (int)expandFiles:(NSArray *)files withPathInfo:(BOOL)usePathInfo toPath:(NSString *)path
 
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{
 
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        FileInfo *fileInfo;
 
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        NSMutableArray *args;
 
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        NSString *argString;
 
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        argString = @"e";
 
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        if (usePathInfo == NO)
 
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        {
 
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                argString = [argString stringByAppendingString:@"i"];
 
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        }
 
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        // destination dir
 
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        argString = [argString stringByAppendingString:@"w="];
 
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        argString = [argString stringByAppendingString:path];
 
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        args = [NSMutableArray array];
 
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        [args addObject:argString];
 
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        [args addObject:[self path]];
 
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        if (files != nil)
 
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        {
 
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                NSEnumerator *cursor = [files objectEnumerator];
 
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                while ((fileInfo = [cursor nextObject]) != nil)
 
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                {
 
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                        [args addObject:[fileInfo fullPath]];
 
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                }
 
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        }
 
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        return [self runUnarchiverWithArguments:args];
 
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}
 
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- (NSArray *)listContents
 
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{
 
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        NSEnumerator *cursor;
 
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        NSString *line;
 
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    NSMutableArray *results = [NSMutableArray array];
 
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    NSData *data = [self dataByRunningLha];
 
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    NSString *string = [[[NSString alloc] initWithData:data 
 
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                encoding:NSASCIIStringEncoding] autorelease];
 
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    NSArray *lines = [string componentsSeparatedByString:@"\n"];
 
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    // take out first 2 lines (header) and last 2 lines (footer)
 
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    lines = [lines subarrayWithRange:NSMakeRange(2, [lines count] - 2)];
 
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    lines = [lines subarrayWithRange:NSMakeRange(0, [lines count] - 3)];
 
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        cursor = [lines objectEnumerator];
 
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        while ((line = [cursor nextObject]) != nil)
 
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        {
 
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                NSArray *components;
 
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                int length;
 
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                NSString *path, *ratio, *month, *day, *year, *dateString;
 
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                NSCalendarDate *date;
 
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                FileInfo *info;
 
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                if ([line hasSuffix:@"/"])
 
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                {
 
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                        // skip directory entries
 
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                        continue;
 
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                }
 
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                components = [line componentsSeparatedByString:@" "];
 
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                components = [components arrayByRemovingEmptyStrings];
 
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                length = [[components objectAtIndex:3] intValue];
 
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                path = [components objectAtIndex:10];
 
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                ratio = [components objectAtIndex:4];
 
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                month = [components objectAtIndex:7];
 
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                day = [components objectAtIndex:8];
 
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                year = [components objectAtIndex:9];
 
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                dateString = [NSString stringWithFormat:@"%@ %@ %@", month, day, year];
 
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                date = [NSCalendarDate dateWithString:dateString calendarFormat:@"%b %d %Y"];
 
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                info = [FileInfo newWithPath:path date:date size:[NSNumber numberWithInt:length]
 
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                        ratio:ratio];
 
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                [results addObject:info];
 
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        }        
 
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    return results;
 
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}
 
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//------------------------------------------------------------------------------
 
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// private API
 
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//------------------------------------------------------------------------------
 
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- (NSData *)dataByRunningLha
 
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{
 
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        NSData *data;
 
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        NSArray *args = [NSArray arrayWithObjects:@"v", [self path], nil];
 
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        data = [self dataByRunningUnachiverWithArguments:args];
 
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        NSLog(@"dataByRunningLha: %@", data);
 
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        return data;
 
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}
 
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@end