image_diff.bt

//------------------------------------------------
//--- 010 Editor v10.0.1 Binary Template
//
//      File: 
//   Authors: 
//   Version: 
//   Purpose: 
//  Category: smolsync
// File Mask: *.diff
//  ID Bytes: 73 6d 6f 6c 64 69 66 66 //smoldiff
//   History: 
//------------------------------------------------

typedef struct {
    int len;
    if (len > 0)
        char s[len];
} str <read=read_STRING>;

string read_STRING(local str &s) {
    if (s.len == 0)
        return "\"\"";
    local string res = "";
    SPrintf(res, "<%d> %s", s.len, s.s);
    return res;
}

string read_SIZE(local int64 size_i) {
    local string res = "";
    local double size = size_i;
    if (Abs(size) < 1024) {
        SPrintf(res, "%Ld b", size);
    }
    local string units = "kmgtp";
    local int unit = 0;
    while (Abs(size) > 1024 && unit != 5) {
        size /= 1024;
        unit += 1;
    }
    SPrintf(res, "%.1lf %sb", size, SubStr(units, unit-1, 1));
    return res;
}

string read_double_time(local double time) {
    local string res = "";
    SPrintf(res, "%lf", time - (int)time);
    res = SubStr(res, 1);
    SPrintf(res, "%s%s", TimeTToString((time_t)time), res);
    return res;
}

typedef struct {
    str name;
    time_t modified;
    int64 size <read=read_SIZE>;
    double created <read=read_double_time>;
    char hash[20];
}  File <read=read_FILE>;

wstring read_FILE(local File &file) {
    return StringToWString(file.name.s, CHARSET_UTF8);
}

typedef struct {
    char status;
    if (status == 'D') {
        File old <open=true>;
    } else if (status == 'A') {
        File new <open=true>;
    } else if (status == 'C') {
        File new <open=true>;
        str from_path;
    } else if (status == 'M') {
        File new <open=true>;
        File old <open=true>;
    } else if (status == '-') {
        File new <open=true>;
    }
} FileDiff;

wstring read_FILEDIFF(local FileDiff &file) {
    local wstring res = "";
    local string filename;
    if (exists(file.new))
        filename = file.new.name;
    else
        filename = file.old.name;
    SPrintf(res, "%c %s", file.status, StringToWString(file.name.s, CHARSET_UTF8));
    return res;
}

struct ImageDiff;
struct ImageDiff {
    str name;
    int64 copied_size <read=read_SIZE>;
    int64 change_in_size <read=read_SIZE>;
    uint files_count;
    FileDiff files[files_count] <optimize=false>;
    uint folder_count;
    if (folder_count)
        ImageDiff folders[folder_count] <optimize=false, read=read_FOLDER>;
};

wstring read_FOLDER(local ImageDiff &image) {
    return StringToWString(image.name.s, CHARSET_UTF8);
}

char signature[8];
Assert(!Strcmp(signature, "smoldiff"), "signature is wrong");

ImageDiff root <open=true>;