move.c

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/*
*  MOVE.C - move internal command.
*
*
*  History:
*
*    14-Dec-1998 (Eric Kohl)
*        Started.
*
*    18-Jan-1999 (Eric Kohl)
*        Unicode safe!
*        Preliminary version!!!
*
*    20-Jan-1999 (Eric Kohl)
*        Redirection safe!
*
*    27-Jan-1999 (Eric Kohl)
*        Added help text ("/?").
*        Added more error checks.
*
*    03-Feb-1999 (Eric Kohl)
*        Added "/N" option.
*
*    30-Apr-2005 (Magnus Olsen) <magnus@greatlord.com>)
*        Remove all hardcode string to En.rc
*
*    24-Jun-2005 (Brandon Turner) <turnerb7@msu.edu>)
*        Fixed bug to allow MS style wildcards + code clean up
*        added /y and /-y
*/

#include <precomp.h>

#ifdef INCLUDE_CMD_MOVE

enum
{
    MOVE_NOTHING  = 0x001,   /* /N  */
    MOVE_OVER_YES = 0x002,   /* /Y  */
    MOVE_OVER_NO  = 0x004,   /* /-Y */
};

enum
{   /* Move status flags */
    MOVE_SOURCE_IS_DIR = 0x001,
    MOVE_SOURCE_IS_FILE = 0x002,
    MOVE_DEST_IS_DIR = 0x004,
    MOVE_DEST_IS_FILE = 0x008,
    MOVE_SOURCE_HAS_WILD = 0x010, /*  source has wildcard */
    MOVE_SRC_CURRENT_IS_DIR = 0x020, /* source is file but at the current round we found a directory */
    MOVE_DEST_EXISTS = 0x040,
    MOVE_PATHS_ON_DIF_VOL = 0x080 /* source and destination paths are on different volume */
};

static INT MoveOverwrite (LPTSTR fn)
{
    /*ask the user if they want to override*/
    INT res;
    ConOutResPrintf(STRING_MOVE_HELP1, fn);
    res = FilePromptYNA (0);
    return res;
}

void GetDirectory (LPTSTR wholepath, LPTSTR directory, BOOL CheckExisting)
{
    /* returns only directory part of path with backslash */
    /* TODO: make code unc aware */
    /* Is there a better alternative to this? */
    LPTSTR last;
    if (CheckExisting && IsExistingDirectory(wholepath))
    {
        _tcscpy(directory, wholepath);
    }
    else if ((last = _tcsrchr(wholepath,_T('\\'))) != NULL)
    {
        _tcsncpy(directory, wholepath, last - wholepath + 1);
        directory[last - wholepath + 1] = 0;
    }
    else
    {
        GetRootPath(wholepath,directory, MAX_PATH);
    }
}


INT cmd_move (LPTSTR param)
{
    LPTSTR *arg;
    INT argc, i, nFiles;
    LPTSTR pszDest;
    TCHAR szDestPath[MAX_PATH];
    TCHAR szFullDestPath[MAX_PATH];
    TCHAR szSrcDirPath[MAX_PATH];
    TCHAR szSrcPath[MAX_PATH];
    TCHAR szFullSrcPath[MAX_PATH];
    DWORD dwFlags = 0;
    INT nOverwrite = 0;
    WIN32_FIND_DATA findBuffer;
    HANDLE hFile;
    
    /* used only when source and destination  directories are on different volume*/
    HANDLE hDestFile;
    WIN32_FIND_DATA findDestBuffer;
    TCHAR szMoveDest[MAX_PATH];
    TCHAR szMoveSrc[MAX_PATH];
    LPTSTR pszDestDirPointer;
    LPTSTR pszSrcDirPointer;
    INT nDirLevel = 0;
    
    LPTSTR pszFile;
    BOOL OnlyOneFile;
    BOOL FoundFile;
    BOOL MoveStatus;
    DWORD dwMoveFlags = 0;
    DWORD dwMoveStatusFlags = 0;


    if (!_tcsncmp (param, _T("/?"), 2))
    {
#if 0
        ConOutPuts (_T("Moves files and renames files and directories.\n\n"
            "To move one or more files:\n"
            "MOVE [/N][/Y|/-Y][drive:][path]filename1[,...] destination\n"
            "\n"
            "To rename a directory:\n"
            "MOVE [/N][/Y|/-Y][drive:][path]dirname1 dirname2\n"
            "\n"
            "  [drive:][path]filename1  Specifies the location and name of the file\n"
            "                           or files you want to move.\n"
            "  /N                       Nothing. Don everthing but move files or direcories.\n"
            "  /Y\n"
            "  /-Y\n"
            "..."));
#else
        ConOutResPaging(TRUE,STRING_MOVE_HELP2);
#endif
        return 0;
    }

    nErrorLevel = 0;
    arg = splitspace(param, &argc);

    /* read options */
    for (i = 0; i < argc; i++)
    {
        if (!_tcsicmp(arg[i], _T("/N")))
            dwFlags |= MOVE_NOTHING;
        else if (!_tcsicmp(arg[i], _T("/Y")))
            dwFlags |= MOVE_OVER_YES;
        else if (!_tcsicmp(arg[i], _T("/-Y")))
            dwFlags |= MOVE_OVER_NO;
        else
            break;
    }
    nFiles = argc - i;

    if (nFiles < 1)
    {
        /* there must be at least one pathspec */
        error_req_param_missing();
        freep(arg);
        return 1;
    }

    if (nFiles > 2)
    {
        /* there are more than two pathspecs */
        error_too_many_parameters(param);
        freep(arg);
        return 1;
    }

    /* If no destination is given, default to current directory */
    pszDest = (nFiles == 1) ? _T(".") : arg[i + 1];

    /* check for wildcards in source and destination */
    if (_tcschr(pszDest, _T('*')) != NULL || _tcschr(pszDest, _T('?')) != NULL)
    {
        /* '*'/'?' in dest, this doesnt happen.  give folder name instead*/
        error_invalid_parameter_format(pszDest);
        freep(arg);
        return 1;
    }
    if (_tcschr(arg[i], _T('*')) != NULL || _tcschr(arg[i], _T('?')) != NULL)
    {
        dwMoveStatusFlags |= MOVE_SOURCE_HAS_WILD;
    }
    
    
    /* get destination */
    GetFullPathName (pszDest, MAX_PATH, szDestPath, NULL);
    TRACE ("Destination: %s\n", debugstr_aw(szDestPath));
    
    /* get source folder */
    GetFullPathName(arg[i], MAX_PATH, szSrcDirPath, &pszFile);
    if (pszFile != NULL)
        *pszFile = _T('\0');
    TRACE ("Source Folder: %s\n", debugstr_aw(szSrcDirPath));
    
    hFile = FindFirstFile (arg[i], &findBuffer);
    if (hFile == INVALID_HANDLE_VALUE)
    {
        ErrorMessage (GetLastError (), arg[i]);
        freep (arg);
        return 1;
        
    }

    /* check for special cases "." and ".." and if found skip them */
    FoundFile = TRUE;
    while(FoundFile &&
          (_tcscmp(findBuffer.cFileName,_T(".")) == 0 ||
           _tcscmp(findBuffer.cFileName,_T("..")) == 0))
        FoundFile = FindNextFile (hFile, &findBuffer);
    
    if (!FoundFile)
    {
        /* what? we don't have anything to move? */
        error_file_not_found();
        FindClose(hFile);
        freep(arg);
        return 1;
    }
    
    OnlyOneFile = TRUE;
    /* check if there can be found files as files have first priority */
    if (findBuffer.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
        dwMoveStatusFlags |= MOVE_SOURCE_IS_DIR;
    else
        dwMoveStatusFlags |= MOVE_SOURCE_IS_FILE;
    while(OnlyOneFile && FindNextFile(hFile,&findBuffer))
    {
        if (!(findBuffer.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
        {
            ConOutPrintf(_T(""));
            if (dwMoveStatusFlags & MOVE_SOURCE_IS_FILE) OnlyOneFile = FALSE;
            else
            {   /* this has been done this way so that we don't disturb other settings if they have been set before this */
                dwMoveStatusFlags |= MOVE_SOURCE_IS_FILE;
                dwMoveStatusFlags &= ~MOVE_SOURCE_IS_DIR;
            }
        }
    }
    FindClose(hFile);

    TRACE ("Do we have only one file: %s\n", OnlyOneFile ? "TRUE" : "FALSE");

    /* we have to start again to be sure we don't miss any files or folders*/
    hFile = FindFirstFile (arg[i], &findBuffer);
    if (hFile == INVALID_HANDLE_VALUE)
    {
        ErrorMessage (GetLastError (), arg[i]);
        freep (arg);
        return 1;
        
    }
    
    /* check for special cases "." and ".." and if found skip them */
    FoundFile = TRUE;
    while(FoundFile &&
          (_tcscmp(findBuffer.cFileName,_T(".")) == 0 ||
           _tcscmp(findBuffer.cFileName,_T("..")) == 0))
        FoundFile = FindNextFile (hFile, &findBuffer);
    
    if (!FoundFile)
    {
        /* huh? somebody removed files and/or folders which were there */
        error_file_not_found();
        FindClose(hFile);
        freep(arg);
        return 1;
    }
    
    /* check if source and destination paths are on different volumes */
    if (szSrcDirPath[0] != szDestPath[0])
        dwMoveStatusFlags |= MOVE_PATHS_ON_DIF_VOL;
    
    /* move it */
    do
    {
        TRACE ("Found file/directory: %s\n", debugstr_aw(findBuffer.cFileName));
        nOverwrite = 1;
        dwMoveFlags = 0;
        dwMoveStatusFlags &= ~MOVE_DEST_IS_FILE &
                            ~MOVE_DEST_IS_DIR &
                            ~MOVE_SRC_CURRENT_IS_DIR &
                            ~MOVE_DEST_EXISTS;
        _tcscpy(szFullSrcPath,szSrcDirPath);
        if(szFullSrcPath[_tcslen(szFullSrcPath) -  1] != _T('\\'))
            _tcscat (szFullSrcPath, _T("\\"));
        _tcscat(szFullSrcPath,findBuffer.cFileName);
        _tcscpy(szSrcPath, szFullSrcPath);
        
        if (IsExistingDirectory(szSrcPath))
        {
            /* source is directory */
            
            if (dwMoveStatusFlags & MOVE_SOURCE_IS_FILE)
            {
                dwMoveStatusFlags |= MOVE_SRC_CURRENT_IS_DIR; /* source is file but at the current round we found a directory */
                continue;
            }
            TRACE ("Source is dir: %s\n", debugstr_aw(szSrcPath));
            dwMoveFlags = MOVEFILE_REPLACE_EXISTING | MOVEFILE_WRITE_THROUGH | MOVEFILE_COPY_ALLOWED;
        }
        
        /* if source is file we don't need to do anything special */
        
        if (IsExistingDirectory(szDestPath))
        {
            /* destination is existing directory */
            TRACE ("Destination is directory: %s\n", debugstr_aw(szDestPath));
            
            dwMoveStatusFlags |= MOVE_DEST_IS_DIR;
            
            /*build the dest string(accounts for *)*/
            _tcscpy (szFullDestPath, szDestPath);
            /*check to see if there is an ending slash, if not add one*/
            if(szFullDestPath[_tcslen(szFullDestPath) -  1] != _T('\\'))
                _tcscat (szFullDestPath, _T("\\"));
            _tcscat (szFullDestPath, findBuffer.cFileName);
            
            if (IsExistingFile(szFullDestPath) || IsExistingDirectory(szFullDestPath))
                dwMoveStatusFlags |= MOVE_DEST_EXISTS;
            
            dwMoveFlags |= MOVEFILE_REPLACE_EXISTING | MOVEFILE_WRITE_THROUGH | MOVEFILE_COPY_ALLOWED;
            
        }
        if (IsExistingFile(szDestPath))
        {
            /* destination is a file */
            TRACE ("Destination is file: %s\n", debugstr_aw(szDestPath));
            
            dwMoveStatusFlags |= MOVE_DEST_IS_FILE | MOVE_DEST_EXISTS;
            _tcscpy (szFullDestPath, szDestPath);
            
            dwMoveFlags |= MOVEFILE_REPLACE_EXISTING | MOVEFILE_WRITE_THROUGH | MOVEFILE_COPY_ALLOWED;
            
        }
        
        TRACE ("Move Status Flags: 0x%X\n",dwMoveStatusFlags);
        
        if (dwMoveStatusFlags & MOVE_SOURCE_IS_DIR &&
            dwMoveStatusFlags & MOVE_DEST_IS_DIR &&
            dwMoveStatusFlags & MOVE_SOURCE_HAS_WILD)
        {
            /* We are not allowed to have existing source and destination dir when there is wildcard in source */
            error_syntax(NULL);
            FindClose(hFile);
            freep(arg);
            return 1;
        }
            
        if (!(dwMoveStatusFlags & (MOVE_DEST_IS_FILE | MOVE_DEST_IS_DIR)))
        {
            /* destination doesn't exist */
            _tcscpy (szFullDestPath, szDestPath);
            if (dwMoveStatusFlags & MOVE_SOURCE_IS_FILE) dwMoveStatusFlags |= MOVE_DEST_IS_FILE;
            if (dwMoveStatusFlags & MOVE_SOURCE_IS_DIR) dwMoveStatusFlags |= MOVE_DEST_IS_DIR;
            
            dwMoveFlags |= MOVEFILE_REPLACE_EXISTING | MOVEFILE_WRITE_THROUGH | MOVEFILE_COPY_ALLOWED;
        }
        
        if (dwMoveStatusFlags & MOVE_SOURCE_IS_FILE &&
            dwMoveStatusFlags & MOVE_DEST_IS_FILE &&
            !OnlyOneFile)
        {
            /*source has many files but there is only one destination file*/
            error_invalid_parameter_format(pszDest);
            FindClose(hFile);
            freep (arg);
            return 1;
        }
        
        /*checks to make sure user wanted/wants the override*/
        if((dwFlags & MOVE_OVER_NO) &&
           (dwMoveStatusFlags & MOVE_DEST_EXISTS))
            continue;
        if(!(dwFlags & MOVE_OVER_YES) &&
            (dwMoveStatusFlags & MOVE_DEST_EXISTS))
            nOverwrite = MoveOverwrite (szFullDestPath);
        if (nOverwrite == PROMPT_NO || nOverwrite == PROMPT_BREAK)
            continue;
        if (nOverwrite == PROMPT_ALL)
            dwFlags |= MOVE_OVER_YES;
        
            
        ConOutPrintf (_T("%s => %s "), szSrcPath, szFullDestPath);
        
        /* are we really supposed to do something */
        if (dwFlags & MOVE_NOTHING)
            continue;
        
        /*move the file*/
        if (!(dwMoveStatusFlags & MOVE_SOURCE_IS_DIR &&
            dwMoveStatusFlags & MOVE_PATHS_ON_DIF_VOL))
            /* we aren't moving source folder to different drive */
            MoveStatus = MoveFileEx (szSrcPath, szFullDestPath, dwMoveFlags);
        else
        {   /* we are moving source folder to different drive */
            _tcscpy(szMoveDest, szFullDestPath);
            _tcscpy(szMoveSrc, szSrcPath);
            DeleteFile(szMoveDest);
            MoveStatus = CreateDirectory(szMoveDest, NULL); /* we use default security settings */
            if (MoveStatus)
            {
                _tcscat(szMoveDest,_T("\\"));
                _tcscat(szMoveSrc,_T("\\"));
                nDirLevel = 0;
                pszDestDirPointer = szMoveDest + _tcslen(szMoveDest);
                pszSrcDirPointer = szMoveSrc + _tcslen(szMoveSrc);
                _tcscpy(pszSrcDirPointer,_T("*.*"));
                hDestFile = FindFirstFile(szMoveSrc, &findDestBuffer);
                if (hDestFile == INVALID_HANDLE_VALUE)
                    MoveStatus = FALSE;
                else
                {
                    BOOL FirstTime = TRUE;
                    FoundFile = TRUE;
                    MoveStatus = FALSE;
                    while(FoundFile)
                    {
                        if (FirstTime)
                            FirstTime = FALSE;
                        else
                            FoundFile = FindNextFile (hDestFile, &findDestBuffer);
                        
                        if (!FoundFile)
                        {   /* Nothing to do in this folder so we stop working on it */
                            FindClose(hDestFile);
                            (pszSrcDirPointer)--;
                            (pszDestDirPointer)--;
                            _tcscpy(pszSrcDirPointer,_T(""));
                            _tcscpy(pszDestDirPointer,_T(""));
                            if (nDirLevel > 0)
                            {
                                TCHAR szTempPath[MAX_PATH];
                                INT_PTR nDiff;

                                FoundFile = TRUE; /* we need to continue our seek for files */
                                nDirLevel--;
                                RemoveDirectory(szMoveSrc);
                                GetDirectory(szMoveSrc,szTempPath,0);
                                nDiff = _tcslen(szMoveSrc) - _tcslen(szTempPath);
                                pszSrcDirPointer = pszSrcDirPointer - nDiff;
                                _tcscpy(pszSrcDirPointer,_T(""));
                                GetDirectory(szMoveDest,szTempPath,0);
                                nDiff = _tcslen(szMoveDest) - _tcslen(szTempPath);
                                pszDestDirPointer = pszDestDirPointer - nDiff;
                                _tcscpy(pszDestDirPointer,_T(""));
                                if(szMoveSrc[_tcslen(szMoveSrc) -  1] != _T('\\'))
                                    _tcscat (szMoveSrc, _T("\\"));
                                if(szMoveDest[_tcslen(szMoveDest) -  1] != _T('\\'))
                                    _tcscat (szMoveDest, _T("\\"));
                                pszDestDirPointer = szMoveDest + _tcslen(szMoveDest);
                                pszSrcDirPointer = szMoveSrc + _tcslen(szMoveSrc);
                                _tcscpy(pszSrcDirPointer,_T("*.*"));
                                hDestFile = FindFirstFile(szMoveSrc, &findDestBuffer);
                                if (hDestFile == INVALID_HANDLE_VALUE)
                                    continue;
                                FirstTime = TRUE;
                            }
                            else
                            {
                                MoveStatus = TRUE; /* we moved everything so lets tell user about it */
                                RemoveDirectory(szMoveSrc);
                            }
                            continue;
                        }
                        
                        /* if we find "." or ".." we'll skip them */
                        if (_tcscmp(findDestBuffer.cFileName,_T(".")) == 0 ||
                            _tcscmp(findDestBuffer.cFileName,_T("..")) == 0)
                            continue;
                    
                        _tcscpy(pszSrcDirPointer, findDestBuffer.cFileName);
                        _tcscpy(pszDestDirPointer, findDestBuffer.cFileName);
                        if (IsExistingFile(szMoveSrc))
                        {
                            FoundFile = CopyFile(szMoveSrc, szMoveDest, FALSE);
                            if (!FoundFile) continue;
                            DeleteFile(szMoveSrc);
                        }
                        else
                        {
                            FindClose(hDestFile);
                            CreateDirectory(szMoveDest, NULL);
                            _tcscat(szMoveDest,_T("\\"));
                            _tcscat(szMoveSrc,_T("\\"));
                            nDirLevel++;
                            pszDestDirPointer = szMoveDest + _tcslen(szMoveDest);
                            pszSrcDirPointer = szMoveSrc + _tcslen(szMoveSrc);
                            _tcscpy(pszSrcDirPointer,_T("*.*"));
                            hDestFile = FindFirstFile(szMoveSrc, &findDestBuffer);
                            if (hDestFile == INVALID_HANDLE_VALUE)
                            {
                                FoundFile = FALSE;
                                continue;
                            }
                            FirstTime = TRUE;
                        }
                    }
                }
            }
        }
        if (MoveStatus)
            ConOutResPrintf(STRING_MOVE_ERROR1);
        else
            ConOutResPrintf(STRING_MOVE_ERROR2);
    }
    while ((!OnlyOneFile || dwMoveStatusFlags & MOVE_SRC_CURRENT_IS_DIR ) &&
            !(dwMoveStatusFlags & MOVE_SOURCE_IS_DIR) &&
            FindNextFile (hFile, &findBuffer));
    FindClose (hFile);
    
    freep (arg);
    return 0;
}

#endif /* INCLUDE_CMD_MOVE */