Subversion Repositories SvarDOS

/*

 * PKG - SvarDOS package manager

 *

 * PUBLISHED UNDER THE TERMS OF THE MIT LICENSE

 *

 * COPYRIGHT (C) 2016-2024 MATEUSZ VISTE, ALL RIGHTS RESERVED.

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and associated documentation files (the "Software"),

 * to deal in the Software without restriction, including without limitation

 * the rights to use, copy, modify, merge, publish, distribute, sublicense,

 * and/or sell copies of the Software, and to permit persons to whom the

 * Software is furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER

 * DEALINGS IN THE SOFTWARE.

 */

#include <stdio.h>    /* printf() */

#include <stdlib.h>   /* malloc() and friends */

#include <string.h>   /* strcasecmp() */

#include "svarlang.lib/svarlang.h"

#include "crc32.h"

#include "helpers.h"

#include "kprintf.h"

#include "libunzip.h"

#include "pkginst.h"

#include "pkgrem.h"

#include "showinst.h"

#include "unzip.h"

#include "version.h"

enum ACTIONTYPES {

  ACTION_INSTALL,

  ACTION_UPDATE,

  ACTION_REMOVE,

  ACTION_LISTFILES,

  ACTION_LISTLOCAL,

  ACTION_UNZIP,

  ACTION_CRC32,

  ACTION_HELP

};

static int showhelp(void) {

  puts("PKG ver " PVER " Copyright (C) " PDATE " Mateusz Viste");

  puts("");

  puts(svarlang_str(1, 0)); /* "PKG is the SvarDOS package manager." */

  puts("");

  puts(svarlang_str(1, 20)); /* "Usage: pkg install package.svp */

  puts(svarlang_str(1, 21)); /* "       pkg update package.svp" */

  puts(svarlang_str(1, 22)); /* "       pkg remove package" */

  puts(svarlang_str(1, 23)); /* "       pkg listfiles package" */

  puts(svarlang_str(1, 24)); /* "       pkg listlocal [filter]" */

  puts(svarlang_str(1, 27)); /* "       pkg unzip file.zip" */

  puts(svarlang_str(1, 28)); /* "       pkg crc32 file" */

  puts("");

  puts(svarlang_str(1, 40)); /* "PKG is published under the MIT license." */

  puts(svarlang_str(1, 41)); /* "It is configured through %DOSDIR%\CFG\PKG.CFG" */

  return(1);

}

static enum ACTIONTYPES parsearg(int argc, char * const *argv) {

  /* look for valid actions */

  if ((argc == 3) && (strcasecmp(argv[1], "install") == 0)) {

    return(ACTION_INSTALL);

  } else if ((argc == 3) && (strcasecmp(argv[1], "update") == 0)) {

    return(ACTION_UPDATE);

  } else if ((argc == 3) && (strcasecmp(argv[1], "remove") == 0)) {

    return(ACTION_REMOVE);

  } else if ((argc == 3) && (strcasecmp(argv[1], "listfiles") == 0)) {

    return(ACTION_LISTFILES);

  } else if ((argc >= 2) && (argc <= 3) && (strcasecmp(argv[1], "listlocal") == 0)) {

    return(ACTION_LISTLOCAL);

  } else if ((argc == 3) && (strcasecmp(argv[1], "unzip") == 0)) {

    return(ACTION_UNZIP);

  } else if ((argc == 3) && (strcasecmp(argv[1], "crc32") == 0)) {

    return(ACTION_CRC32);

  } else {

    return(ACTION_HELP);

  }

}

static int pkginst(const char *file, int flags, const char *dosdir, const struct customdirs *dirlist) {

  char pkgname[9];

  int t, lastpathdelim = -1, lastdot = -1, res = 1;

  struct ziplist *zipfileidx;

  FILE *zipfilefd;

  /* copy the filename into pkgname (without path elements and without extension) */

  for (t = 0; file[t] != 0; t++) {

    switch (file[t]) {

      case '/':

      case '\\':

        lastpathdelim = t;

        break;

      case '.':

        lastdot = t;

        break;

    }

  }

  if (lastdot <= lastpathdelim) lastdot = t; /* a dot before last path delimiters is not an extension prefix */

  t = lastdot - (lastpathdelim + 1);

  if (t + 1 > sizeof(pkgname)) {

    puts(svarlang_str(3, 24)); /* "ERROR: package name too long" */

    return(1);

  }

  memcpy(pkgname, file + lastpathdelim + 1, t);

  pkgname[t] = 0;

  strlwr(pkgname); /* package name must be all lower-case for further file matching in the zip file */

  /* prepare the zip file and install it */

  zipfileidx = pkginstall_preparepackage(pkgname, file, flags, &zipfilefd, dosdir, dirlist);

  if (zipfileidx != NULL) {

    /* remove the old version of the package if we are UPDATING it */

    res = 0;

    if (flags & PKGINST_UPDATE) res = pkgrem(pkgname, dosdir);

    if (res == 0) res = pkginstall_installpackage(pkgname, dosdir, dirlist, zipfileidx, zipfilefd);

    zip_freelist(&zipfileidx);

  }

  fclose(zipfilefd);

  return(res);

}

/* pkg crc32 file */

static int crcfile(const char *fname) {

  FILE *fd;

  unsigned long crc;

  unsigned char buff[512];

  unsigned int len;

  fd = fopen(fname, "rb");

  if (fd == NULL) {

    puts(svarlang_str(10, 1)); /* failed to open file */

    return(1);

  }

  crc = crc32_init();

  for (;;) {

    len = fread(buff, 1, sizeof(buff), fd);

    if (len == 0) break;

    crc32_feed(&crc, buff, len);

  }

  fclose(fd);

  crc32_finish(&crc);

  printf("%08lX", crc);

  puts("");

  return(0);

}

int main(int argc, char **argv) {

  int res = 1;

  enum ACTIONTYPES action;

  const char *dosdir;

  struct customdirs *dirlist;

  svarlang_autoload_exepath(argv[0], getenv("LANG"));   /* NLS init */

  action = parsearg(argc, argv);

  switch (action) {

    case ACTION_HELP:

      res = showhelp();

      goto GAMEOVER;

      break;

    case ACTION_UNZIP:

      res = unzip(argv[2]);

      goto GAMEOVER;

      break;

    case ACTION_CRC32:

      res = crcfile(argv[2]);

      goto GAMEOVER;

      break;

  }

  /* read the DOSDIR environment variable */

  dosdir = getenv("DOSDIR");

  if (dosdir == NULL) {

    puts(svarlang_str(2, 2)); /* "%DOSDIR% not set! You should make it point to the SvarDOS main directory." */

    puts(svarlang_str(2, 3)); /* "Example: SET DOSDIR=C:\SVARDOS" */

    goto GAMEOVER;

  }

  /* load configuration */

  if (loadconf(dosdir, &dirlist) != 0) goto GAMEOVER;

  switch (action) {

    case ACTION_UPDATE:

    case ACTION_INSTALL:

      res = pkginst(argv[2], (action == ACTION_UPDATE)?PKGINST_UPDATE:0, dosdir, dirlist);

      break;

    case ACTION_REMOVE:

      res = pkgrem(argv[2], dosdir);

      break;

    case ACTION_LISTFILES:

      res = listfilesofpkg(argv[2], dosdir);

      break;

    case ACTION_LISTLOCAL:

      res = showinstalledpkgs((argc == 3)?argv[2]:NULL, dosdir);

      break;

    default:

      res = showhelp();

      break;

  }

  GAMEOVER:

  if (res != 0) return(1);

  return(0);

}