dataset.c

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/***************************************************************************
 *   Copyright (C) 2004, 2006 Symbian Software Ltd.                        *
 *   All rights reserved.                                                  *
 *   Copyright (C) 2007-2011 Mike Kinghan, imk@strudl.org                  *
 *   All rights reserved.                                                  *
 *                                                                         *
 *   Contributed originally by Mike Kinghan, imk@strudl.org                *
 *                                                                         *
 *   Redistribution and use in source and binary forms, with or without    *
 *   modification, are permitted provided that the following conditions    *
 *   are met:                                                              *
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 *   notice, this list of conditions and the following disclaimer.         *
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 *   Redistributions in binary form must reproduce the above copyright     *
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 *   this software without specific prior written permission.              *
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#include "dataset.h"
#include "platform.h"
#include "report.h"

STATE_DEF(dataset)
{
    INCLUDE_PUBLIC(dataset);
    heap_str filter_types;
}
STATE_T(dataset);


IMPLEMENT(dataset,USER_INITABLE);

DEFINE_USER_INIT(dataset)(STATE_T(dataset) * dataset_st)
{
    dataset_st->dataset_public_state.file_tree = file_tree_new();
}

DEFINE_USER_FINIS(dataset)(STATE_T(dataset) * dataset_st)
{
    file_tree_dispose((SET_PUBLIC(dataset,file_tree)));
    SET_PUBLIC(dataset,file_tree) = NULL;
    free(SET_STATE(dataset,filter_types));
}

static bool
filter_filename(const char *filename)
{
    char const * filter_filetypes = GET_STATE(dataset,filter_types);
    char const *leafname = strrchr(filename,PATH_DELIM);
    if (!leafname) {
        leafname = filename;
    }
    if (filter_filetypes) {
        char const *extension = filter_filetypes;
        size_t ext_len;
        for (   ; *extension; extension += ext_len + 1) {
            char *posn = strrchr(leafname,'.');
            ext_len = strlen(extension);
            if (posn && posn[1]) {
                if (!strcmp(++posn,extension)) {
                    return true;
                }
            }
        }
    }
    return false;
}

static void
build_proc(     file_tree_h ft,
            char const *name,
            file_tree_traverse_state_t context)
{
    switch(context) {
    case FT_ENTERING_DIR:
        report(PROGRESS_SEARCHING_DIR,NULL,"Searching dir \"%s\"",name);
        break;
    case FT_AT_FILE:
        report(PROGRESS_ADDED_FILE,NULL,"Added file \"%s\"",name);
        break;
    case FT_LEAVING_DIR:
        report( PROGRESS_ADDED_DIR,
                NULL,
                "Added %d files from dir \"%s\"",
                file_tree_count(ft,FT_COUNT_FILES,NULL),
                name);
        break;
    default:
        assert(false);
    }
}

/* API*/

void
dataset_filter_filetypes(const char *optarg)
{
    size_t len = strlen(optarg);
    heap_str list = SET_STATE(dataset,filter_types) = zallocate(len + 2);
    strcpy(list,optarg);
    list[len + 1] = '\0';
    while(--len) {
        if (list[len] == ',') {
            list[len] = '\0';
        }
    }
    file_tree_set_filter(GET_PUBLIC(dataset,file_tree),filter_filename);
}

void
dataset_add(char const *path)
{
    file_tree_add(GET_PUBLIC(dataset,file_tree),path,build_proc);
}


/* EOF*/