* choose.cc (do_choose): Fix incorrect assignment of trust setting to use when

[cygwin-apps/setup.git] / choose.cc

/*
 * Copyright (c) 2000, Red Hat, Inc.
 *
 *     This program is free software; you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation; either version 2 of the License, or
 *     (at your option) any later version.
 *
 *     A copy of the GNU General Public License can be found at
 *     http://www.gnu.org/
 *
 * Written by DJ Delorie <dj@cygnus.com>
 *
 */

/* The purpose of this file is to let the user choose which packages
   to install, and which versions of the package when more than one
   version is provided.  The "trust" level serves as an indication as
   to which version should be the default choice.  At the moment, all
   we do is compare with previously installed packages to skip any
   that are already installed (by setting the action to ACTION_SAME).
   While the "trust" stuff is supported, it's not really implemented
   yet.  We always prefer the "current" option.  In the future, this
   file might have a user dialog added to let the user choose to not
   install packages, or to install packages that aren't installed by
   default. */

static char *cvsid = "\n%%% $Id$\n";

#include "win32.h"
#include <stdio.h>
#include <stdlib.h>
#include <io.h>
#include <ctype.h>

#include "dialog.h"
#include "resource.h"
#include "state.h"
#include "ini.h"
#include "concat.h"
#include "msg.h"
#include "log.h"
#include "find.h"
#include "filemanip.h"
#include "mount.h"

#include "port.h"

#define HMARGIN 10
#define ROW_MARGIN      5
#define ICON_MARGIN     4

#define CHECK_SIZE      11

#define TRUST_KEEP      101
#define TRUST_UNINSTALL 102
#define TRUST_NONE      103
#define TRUST_REDO    104
#define TRUST_SRC_ONLY    105

static int initialized = 0;

static int full_list = 0;

static int scroll_ulc_x, scroll_ulc_y;

static HWND lv, nextbutton, choose_inst_text;
static TEXTMETRIC tm;
static int header_height;
static HANDLE sysfont;
static int row_height;
static HANDLE bm_spin, bm_rtarrow, bm_checkyes, bm_checkno, bm_checkna;
static HDC bitmap_dc;

static struct
  {
    char *text;
    int slen;
    int width;
    int x;
  }
headers[] = {
  { "Current", 7, 0, 0 },
#define CURRENT_COL 0
  { "New", 3, 0, 0 },
#define NEW_COL 1
  { "Src?", 4, 0, 0 },
#define SRC_COL 2
  { "Package", 7, 0, 0 },
#define PACKAGE_COL 3
  { 0, 0, 0, 0 }
};
#define NUM_COLUMNS (sizeof (headers) / (sizeof (headers[0])) - 1)

int *package_indexes, nindexes;

struct ExtraPackageInfo
  {
    char *installed_file;       /* filename of previous "install" file */
    char *installed_ver;        /* version part */
    int   installed_size; /* ditto, size. */

    int in_partial_list;
    int pick;
    int npick;
    int which_is_installed; /* == TRUST* or -1 */

    struct
      {
        int src_avail;
        int trust;              /* may be keep or uninstall */
        char *caption;  /* ==0 at EOL */
      }
    chooser[NTRUST + 3];        /* one extra for NULL above */
  };

static ExtraPackageInfo *extra;

static void
paint (HWND hwnd)
{
  HDC hdc;
  PAINTSTRUCT ps;
  int x, y, i, j, ii;

  hdc = BeginPaint (hwnd, &ps);

  SelectObject (hdc, sysfont);
  SetBkColor (hdc, GetSysColor (COLOR_WINDOW));

  RECT cr;
  GetClientRect (hwnd, &cr);

  POINT p;

  x = cr.left - scroll_ulc_x;
  y = cr.top - scroll_ulc_y + header_height;


  for (i = 0; headers[i].text; i++)
    {
      TextOut (hdc, x + headers[i].x, 3, headers[i].text, headers[i].slen);
      MoveToEx (hdc, x + headers[i].x, header_height-3, &p);
      LineTo (hdc, x + headers[i].x + headers[i].width, header_height-3);
    }

  IntersectClipRect (hdc, cr.left, cr.top + header_height, cr.right, cr.bottom);

  for (ii = 0; ii < nindexes; ii++)
    {
      i = package_indexes[ii];
      int r = y + ii * row_height;
      int by = r + tm.tmHeight - 11;
      if (extra[i].installed_ver && extra[i].installed_ver[0])
        {
          TextOut (hdc, x + headers[CURRENT_COL].x, r,
                   extra[i].installed_ver, strlen (extra[i].installed_ver));
          SelectObject (bitmap_dc, bm_rtarrow);
          BitBlt (hdc, x + headers[CURRENT_COL].x + headers[0].width + ICON_MARGIN/2 + HMARGIN/2, by,
                  11, 11, bitmap_dc, 0, 0, SRCCOPY);
        }

      char *s = extra[i].chooser[extra[i].pick].caption;
      if (s)
        {
          TextOut (hdc, x + headers[NEW_COL].x + 11 + ICON_MARGIN, r,
                   s, strlen (s));
          if (extra[i].npick > 1)
            {
              SelectObject (bitmap_dc, bm_spin);
              BitBlt (hdc, x + headers[NEW_COL].x, by, 11, 11,
                      bitmap_dc, 0, 0, SRCCOPY);
            }
        }

      HANDLE check_bm = bm_checkna;
      if (extra[i].chooser[extra[i].pick].src_avail)
        {
          if (package[i].srcaction == SRCACTION_NO &&
              extra[i].chooser[extra[i].pick].trust != TRUST_SRC_ONLY)
            check_bm = bm_checkno;
          else if (package[i].srcaction == SRCACTION_YES ||
                   extra[i].chooser[extra[i].pick].trust == TRUST_SRC_ONLY)
            check_bm = bm_checkyes;
        }
      SelectObject (bitmap_dc, check_bm);
      BitBlt (hdc, x + headers[SRC_COL].x, by, 11, 11,
              bitmap_dc, 0, 0, SRCCOPY);

      if (package[i].name)
        TextOut (hdc, x + headers[PACKAGE_COL].x, r, package[i].name, strlen (package[i].name));
    }

  if (nindexes == 0)
    {
      static char *msg = "Nothing to Install/Update";
      if (source == IDC_SOURCE_DOWNLOAD)
        msg = "Nothing to Download";
      TextOut (hdc, HMARGIN, header_height, msg, strlen (msg));
    }

  EndPaint (hwnd, &ps);
}

static void
scroll_common (HWND hwnd, int which, int *var, int code)
{
  int v = *var;

  SCROLLINFO si;
  si.cbSize = sizeof (si);
  si.fMask = SIF_ALL;
  GetScrollInfo (hwnd, which, &si);

  switch (code)
    {
    case SB_THUMBTRACK:
      si.nPos = si.nTrackPos;
      break;
    case SB_THUMBPOSITION:
      break;
    case SB_BOTTOM:
      si.nPos = si.nMax;
      break;
    case SB_TOP:
      si.nPos = 0;
      break;
    case SB_LINEDOWN:
      si.nPos += row_height;
      break;
    case SB_LINEUP:
      si.nPos -= row_height;
      break;
    case SB_PAGEDOWN:
      si.nPos += si.nPage * 9/10;
      break;
    case SB_PAGEUP:
      si.nPos -= si.nPage * 9/10;
      break;
    }

  if ((int)si.nPos < 0)
    si.nPos = 0;
  if (si.nPos + si.nPage > si.nMax)
    si.nPos = si.nMax - si.nPage;

  si.fMask = SIF_POS;
  SetScrollInfo (hwnd, which, &si, TRUE);

  int ox = scroll_ulc_x;
  int oy = scroll_ulc_y;
  *var = si.nPos;

  RECT cr, sr;
  GetClientRect (hwnd, &cr);
  sr = cr;
  sr.top += header_height;
  ScrollWindow (hwnd, ox - scroll_ulc_x, oy - scroll_ulc_y, &sr, &sr);
  sr.bottom = sr.top;
  sr.top = cr.top;
  ScrollWindow (hwnd, ox - scroll_ulc_x, 0, &sr, &sr);
}

static LRESULT CALLBACK
list_vscroll (HWND hwnd, HWND hctl, UINT code, int pos)
{
  scroll_common (hwnd, SB_VERT, &scroll_ulc_y, code);
}

static LRESULT CALLBACK
list_hscroll (HWND hwnd, HWND hctl, UINT code, int pos)
{
  scroll_common (hwnd, SB_HORZ, &scroll_ulc_x, code);
}

static LRESULT CALLBACK
list_click (HWND hwnd, BOOL dblclk, int x, int y, UINT hitCode)
{
  int r;

  if (nindexes == 0)
    return 0;

  if (y < header_height)
    return 0;
  x += scroll_ulc_x;
  y += scroll_ulc_y - header_height;

  r = (y + ROW_MARGIN/2) / row_height;

  if (r < 0 || r >= npackages)
    return 0;

  int p = package_indexes[r];

  if (x >= headers[NEW_COL].x - HMARGIN/2 && x <= headers[NEW_COL + 1].x - HMARGIN/2)
    {
      extra[p].pick++;
      while (extra[p].chooser[extra[p].pick].trust < NTRUST &&
             (package[p].info[extra[p].chooser[extra[p].pick].trust].install_exists
              ==0 && source == IDC_SOURCE_CWD) &&
             package[p].info[extra[p].chooser[extra[p].pick].trust].install &&
             extra[p].chooser[extra[p].pick].caption != 0)
        extra[p].pick++;
      if (extra[p].chooser[extra[p].pick].caption == 0)
        extra[p].pick = 0;
    }

  if (x >= headers[SRC_COL].x - HMARGIN/2 && x <= headers[SRC_COL + 1].x - HMARGIN/2)
    {
      if (extra[p].chooser[extra[p].pick].src_avail)
        package[p].srcaction ^= (SRCACTION_NO^SRCACTION_YES);
    }

  RECT rect;
  rect.left = headers[NEW_COL].x - scroll_ulc_x;
  rect.right = headers[SRC_COL + 1].x - scroll_ulc_x;
  rect.top = header_height + r * row_height - scroll_ulc_y;
  rect.bottom = rect.top + row_height;
  InvalidateRect (hwnd, &rect, TRUE);
}

static LRESULT CALLBACK
listview_proc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
  switch (message)
    {
    case WM_HSCROLL:
      return HANDLE_WM_HSCROLL (hwnd, wParam, lParam, list_hscroll);
    case WM_VSCROLL:
      return HANDLE_WM_VSCROLL (hwnd, wParam, lParam, list_vscroll);
    case WM_LBUTTONDOWN:
      return HANDLE_WM_LBUTTONDOWN (hwnd, wParam, lParam, list_click);
    case WM_PAINT:
      paint (hwnd);
      return 0;
    default:
      return DefWindowProc (hwnd, message, wParam, lParam);
    }
}

static void
register_windows (HINSTANCE hinst)
{
  WNDCLASSEX wcex;
  static int done = 0;

  if (done)
    return;
  done = 1;

  memset (&wcex, 0, sizeof (wcex));
  wcex.cbSize = sizeof (WNDCLASSEX);
  wcex.style = CS_HREDRAW | CS_VREDRAW;
  wcex.lpfnWndProc = listview_proc;
  wcex.hInstance = hinst;
  wcex.hIcon = LoadIcon (0, IDI_APPLICATION);
  wcex.hCursor = LoadCursor (0, IDC_ARROW);
  wcex.hbrBackground = (HBRUSH) (COLOR_WINDOW + 1);
  wcex.lpszClassName = "listview";

  RegisterClassEx (&wcex);
}

static void
note_width (HDC dc, char *string, int addend, int column)
{
  if (!string)
    return;
  SIZE s;
  GetTextExtentPoint32 (dc, string, strlen (string), &s);
  if (headers[column].width < s.cx + addend)
    headers[column].width = s.cx + addend;
}

static int
check_existence (int p, int trust, int check_src)
{
  if (source == IDC_SOURCE_NETINST)
    return 1;
  if (source == IDC_SOURCE_DOWNLOAD)
    {
      if (check_src == 0 && _access (package[p].info[trust].install, 0) == 0)
        return 1;
      else if (check_src == 1 && _access (package[p].info[trust].source, 0) == 0)
        return 1;
      else
        return 0;
    }
  if (source == IDC_SOURCE_CWD)
    {
      if (check_src == 0  && package[p].info[trust].install &&
          _access (package[p].info[trust].install, 0) == 0)
        return 1;
      else if (check_src == 1 && package[p].info[trust].source &&
               _access (package[p].info[trust].source, 0) == 0)
        return 1;
    }
  return 0;
}

static void
set_existence ()
{
  for (int i = 0; i < npackages; i++)
    {
      for (int t = 0; t < NTRUST; t++)
        {
          /* 0 = check install file */
          package[i].info[t].install_exists = check_existence (i, t, 0);
          /* 1 = check source file */
          package[i].info[t].source_exists = check_existence (i, t, 1);
        }
      for (int t = 0; t < NTRUST; t++)
        {
          if (package[i].info[t].install &&
              extra[i].installed_ver != package[i].info[t].version)
            {
              if (source == IDC_SOURCE_NETINST)
                package[i].info[t].partial_list_display = 1;
              else if (source == IDC_SOURCE_DOWNLOAD)
                package[i].info[t].partial_list_display = 1-package[i].info[t].install_exists;
              else if (source == IDC_SOURCE_CWD)
                if (package[i].info[t].install_exists)
                  package[i].info[t].partial_list_display = 1;
                else
                  package[i].info[t].partial_list_display = 0;
            }
          if (package[i].info[t].partial_list_display)
            extra[i].in_partial_list = 1;

        }
    }
}

static int
best_trust (int p, int trust)
{
  int t;
  t = trust;
  if (package[p].info[t].install &&
      ((package[p].info[t].install_exists && source == IDC_SOURCE_CWD) ||
       (package[p].info[t].install_exists == 0 &&
        source == IDC_SOURCE_DOWNLOAD) || source == IDC_SOURCE_NETINST))
    return t;
  if (extra[p].installed_file && extra[p].installed_ver == package[p].info[t].version)
    return TRUST_KEEP;
  return TRUST_NONE;
}

static void
default_trust (HWND h, int trust)
{
  int i, t, c;

  for (i = 0; i < npackages; i++)
    {
      t = best_trust (i, trust);
      extra[i].pick = 1;
      package[i].trust = t;
      for (c = 0; c < extra[i].npick; c++)
        if (t == extra[i].chooser[c].trust)
          extra[i].pick = c;
    }
  RECT r;
  GetClientRect (h, &r);
  InvalidateRect (h, &r, TRUE);
  if (nextbutton)
    SetFocus (nextbutton);
}

static void
set_full_list (HWND h, int isfull)
{
  int i, j;
  full_list = isfull;
  if (package_indexes == 0)
    package_indexes = (int *) malloc (npackages * sizeof (int));
  for (i = j = 0; i < npackages; i++)
    {
      if ((isfull || (extra[i].in_partial_list &&
                      extra[i].chooser[extra[i].pick].trust != TRUST_KEEP &&
                      extra[i].chooser[extra[i].pick].trust != TRUST_NONE)) &&
          (source == IDC_SOURCE_DOWNLOAD || source == IDC_SOURCE_NETINST ||
           package[i].info[TRUST_PREV].install_exists ||
           package[i].info[TRUST_CURR].install_exists ||
           package[i].info[TRUST_TEST].install_exists))
        package_indexes[j++] = i;
    }
  nindexes = j;

  RECT r;
  GetClientRect (h, &r);
  SCROLLINFO si;
  memset (&si, 0, sizeof (si));
  si.cbSize = sizeof (si);
  si.fMask = SIF_ALL;
  si.nMin = 0;
  si.nMax = headers[2].x + headers[2].width + HMARGIN;
  si.nPage = r.right;
  SetScrollInfo (h, SB_HORZ, &si, TRUE);

  si.nMax = nindexes * row_height;
  si.nPage = r.bottom - header_height;
  SetScrollInfo (h, SB_VERT, &si, TRUE);

  scroll_ulc_x = scroll_ulc_y = 0;

  InvalidateRect (h, &r, TRUE);

  if (nextbutton)
    SetFocus (nextbutton);
}

static void
build_labels ()
{
  int i;
  for (i = 0; i < npackages; i++)
    {
      int c = 0, t;

#define C extra[i].chooser[c]
      if (extra[i].installed_ver)
        {
          C.caption = "Uninstall";
          C.trust = TRUST_UNINSTALL;
          c++;
          C.caption = "Keep";
          C.trust = TRUST_KEEP;
          c++;
        }

      if (extra[i].installed_ver &&
          package[i].info[extra[i].which_is_installed].source &&
          ((package[i].info[extra[i].which_is_installed].source_exists &&
            source==IDC_SOURCE_CWD) ||
           source==IDC_SOURCE_DOWNLOAD || source==IDC_SOURCE_NETINST ))
        {
          C.caption = "Sources";
          if (package[i].info[extra[i].which_is_installed].source_exists == 1 &&
              source == IDC_SOURCE_DOWNLOAD)
            C.caption = "Redo Sources";
          C.trust = TRUST_SRC_ONLY;
          C.src_avail = 1;
          c++;
        }

      for (t = TRUST_PREV; t < NTRUST; t++)
        if (package[i].info[t].install)
          if (t != extra[i].which_is_installed)
            {
              C.caption = package[i].info[t].version;
              if (C.caption == 0 || C.caption[0] == 0)
                C.caption = "0.0";
              C.trust = t;
              if (package[i].info[t].source &&
                  ((package[i].info[t].source_exists &&
                    source==IDC_SOURCE_CWD) ||
                   (package[i].info[t].source_exists==0 &&
                    source==IDC_SOURCE_DOWNLOAD) || source==IDC_SOURCE_NETINST))
                C.src_avail = 1;
              c++;
            }
          else
            {
              if (source == IDC_SOURCE_DOWNLOAD)
                {
                  C.caption = "ReDownload";
                }
              else
                {
                  C.caption = "ReInstall";
                }
              if (package[i].info[t].source &&
                  ((package[i].info[t].source_exists &&
                    source==IDC_SOURCE_CWD) ||
                   source == IDC_SOURCE_DOWNLOAD || source==IDC_SOURCE_NETINST))
                C.src_avail = 1;
              C.trust = TRUST_REDO;
              c++;
            }

      if (c == 0)
        {
          C.caption = "N/A";
          C.trust = TRUST_NONE;
          c++;
        }

      if (! extra[i].installed_file)
        {
          C.caption = "Skip";
          C.trust = TRUST_NONE;
          c++;
        }

      C.caption = 0;
      extra[i].npick = c;
#undef C
    }
}

static void
create_listview (HWND dlg, RECT *r)
{
  int i, t;
  lv = CreateWindowEx (WS_EX_CLIENTEDGE,
                       "listview",
                       "listviewwindow",
                       WS_CHILD | WS_HSCROLL | WS_VSCROLL | WS_VISIBLE,
                       r->left, r->top,
                       r->right-r->left + 1, r->bottom-r->top + 1,
                       dlg,
                       (HMENU) MAKEINTRESOURCE(IDC_CHOOSE_LIST),
                       hinstance,
                       0);
  ShowWindow (lv, SW_SHOW);

  for (i = 0; headers[i].text; i++)
    headers[i].width = 0;

  HDC dc = GetDC (lv);
  sysfont = GetStockObject (DEFAULT_GUI_FONT);
  SelectObject (dc, sysfont);
  GetTextMetrics (dc, &tm);
  header_height = tm.tmHeight + 5 + 3;

  bitmap_dc = CreateCompatibleDC (dc);

  row_height = (tm.tmHeight + tm.tmExternalLeading + ROW_MARGIN);
  int irh = tm.tmExternalLeading + tm.tmDescent + 11 + ROW_MARGIN;
  if (row_height < irh)
    row_height = irh;

  for (i = 0; headers[i].text; i++)
    note_width (dc, headers[i].text, 0, i);
  for (i = 0; i < npackages; i++)
    {
      note_width (dc, extra[i].installed_ver, 0, CURRENT_COL);
      note_width (dc, extra[i].installed_ver, 11 + ICON_MARGIN, NEW_COL);
      for (t = 0; t < NTRUST; t++)
        note_width (dc, package[i].info[t].version, 11 + ICON_MARGIN, NEW_COL);
      note_width (dc, package[i].name, 0, PACKAGE_COL);
      note_width (dc, package[i].sdesc, 0, PACKAGE_COL);
    }
  note_width (dc, "keep", 11 + ICON_MARGIN, NEW_COL);
  note_width (dc, "uninstall", 11 + ICON_MARGIN, NEW_COL);

  headers[CURRENT_COL].x = HMARGIN/2;
  headers[NEW_COL].x = (headers[CURRENT_COL].x + headers[CURRENT_COL].width
                        + HMARGIN + 11 + ICON_MARGIN);
  headers[SRC_COL].x = headers[NEW_COL].x + headers[NEW_COL].width + HMARGIN;
  headers[PACKAGE_COL].x = headers[SRC_COL].x + headers[SRC_COL].width + HMARGIN;

  default_trust (lv, TRUST_CURR);
  set_full_list (lv, full_list);
  static int ta[] = { IDC_CHOOSE_CURR, 0 };
  rbset (dlg, ta, IDC_CHOOSE_CURR);

  ReleaseDC (lv, dc);
}

static BOOL
dialog_cmd (HWND h, int id, HWND hwndctl, UINT code)
{
  switch (id)
    {
    case IDC_CHOOSE_PREV:
      default_trust (lv, TRUST_PREV);
      set_full_list (lv, full_list);
      break;
    case IDC_CHOOSE_CURR:
      default_trust (lv, TRUST_CURR);
      set_full_list (lv, full_list);
      break;
    case IDC_CHOOSE_EXP:
      default_trust (lv, TRUST_TEST);
      set_full_list (lv, full_list);
      break;
    case IDC_CHOOSE_FULLPART:
      set_full_list (lv, !full_list);
      break;

    case IDOK:
      if (source == IDC_SOURCE_CWD)
        NEXT (IDD_S_INSTALL);
      else
        NEXT (IDD_S_DOWNLOAD);
      break;

    case IDC_BACK:
      initialized = 0;
      if (source == IDC_SOURCE_CWD)
        NEXT (IDD_ROOT);
      else
        NEXT (IDD_SITE);
      break;

    case IDCANCEL:
      NEXT (0);
      break;
    }
}

static void
GetParentRect (HWND parent, HWND child, RECT *r)
{
  POINT p;
  GetWindowRect (child, r);
  p.x = r->left;
  p.y = r->top;
  ScreenToClient (parent, &p);
  r->left = p.x;
  r->top = p.y;
  p.x = r->right;
  p.y = r->bottom;
  ScreenToClient (parent, &p);
  r->right = p.x;
  r->bottom = p.y;
}

static BOOL CALLBACK
dialog_proc (HWND h, UINT message, WPARAM wParam, LPARAM lParam)
{
  int i, j;
  HWND frame;
  RECT r;
  switch (message)
    {
    case WM_INITDIALOG:
      nextbutton = GetDlgItem (h, IDOK);
      frame = GetDlgItem (h, IDC_LISTVIEW_POS);
      choose_inst_text = GetDlgItem(h,IDC_CHOOSE_INST_TEXT);
      if (source == IDC_SOURCE_DOWNLOAD)
        SetWindowText (choose_inst_text, "Select packages to download ");
      else
        SetWindowText (choose_inst_text, "Select packages to install ");
      GetParentRect (h, frame, &r);
      r.top += 2;
      r.bottom -= 2;
      create_listview (h, &r);
#if 0
      load_dialog (h);
#endif
      return FALSE;
    case WM_COMMAND:
      return HANDLE_WM_COMMAND (h, wParam, lParam, dialog_cmd);
    }
  return FALSE;
}

static char *
base (char *s)
{
  if (!s)
    return 0;
  char *rv = s;
  while (*s)
    {
      if ((*s == '/' || *s == ':' || *s == '\\') && s[1])
        rv = s + 1;
      s++;
    }
  return rv;
}

static void
get_package_version (int p , int trust)
{
  char *v, *d;
  char instpkg[_MAX_PATH];
  instpkg[0]=0;  /* make sure empty to start with */
  if (trust == -1)
    strcpy (instpkg, extra[p].installed_file);
  else
    strcpy (instpkg, package[p].info[trust].install);
  for (v = base (instpkg); *v; v++)
    if (*v == '-' && isdigit (v[1]))
      {
        v++;
        break;
      }
  if (!v)
    v = instpkg;
  for (d = v; *d; d++)
    if (strncmp (d, ".tar", 4) == 0)
      {
        *d = 0;
        break;
      }
  if (v[0])
    {
      if (trust != -1)
        package[p].info[trust].version = strdup (v);
      extra[p].installed_ver = strdup (v);
    }
  else
    {
      if (trust != -1)
        package[p].info[trust].version = "0";
      extra[p].installed_ver = "0";
    }
}

int
find_tar_ext (const char *path)
{
  char *p = strchr (path, '\0') - 7;
  if (p <= path)
    return 0;
  if (*p == '.')
    {
      if (strcmp (p, ".tar.gz") != 0)
        return 0;
    }
  else if (--p <= path || strcmp (p, ".tar.bz2") != 0)
    return 0;

  return p - path;
}

static void
scan2 (char *path, unsigned int size)
{
  int i, t, c, tarext;
  int matched;

  tarext = find_tar_ext (path);
  if (!tarext)
    return;

  char mainpkg[_MAX_PATH], pkginfo[_MAX_PATH], tarpkg[_MAX_PATH],
  *ver, *verinfo;

  strcpy (mainpkg, path);
  strcpy (tarpkg, path);
  mainpkg[tarext] = 0; /* strip off the tar.[bg]z2? */

  for (ver = mainpkg; *ver; ver++)
    if ((*ver == '-' || *ver == '_') && isdigit (ver[1]))
      {
        *ver++ = 0;
        break;
      }

  for (i = 0; i < npackages; i++)
    {
      pkginfo[0] = 0;
      for (t = 0; t < NTRUST; t++)
        {
          if (package[i].info[t].install)
            {
              strcpy (pkginfo, package[i].info[t].install);
              pkginfo[find_tar_ext (pkginfo)] = '\0'; /* strip off the tar.gz */
              for (verinfo = pkginfo; *verinfo; verinfo++)
                {
                  if ((*verinfo == '-' || *verinfo == '_') && isdigit (verinfo[1]))
                    {
                      *verinfo++ = 0;
                      break;
                    }
                }
              break;
            }
        }
      if (strcmp (pkginfo, mainpkg) == 0)
        {
          for (t = 0; t < NTRUST; t++)
            if ((package[i].info[t].install &&
                 strcmp (base (package[i].info[t].install), base (path)) == 0) ||
                (package[i].info[t].source &&
                 strcmp (base (package[i].info[t].source), base (path)) == 0))
              {
                if (strcmp (base (package[i].info[t].install), base (path)) == 0)
                  package[i].info[t].install_exists = 1;
                else
                  package[i].info[t].source_exists = 1;
                break;
              }
            else if (t >= NTRUST - 1)
              if (!package[i].info[TRUST_CURR].install)
                {
                  package[i].info[TRUST_CURR].version = 0;
                  int tarsrcext = tarext - 4;
                  if (tarsrcext > 0 && strncmp (path + tarsrcext , "-src", 4) == 0)
                    {
                      int n = find_tar_ext (tarpkg);
                      memmove (tarpkg + n - 4, tarpkg + n, strlen (tarpkg + n) + 1);
                      package[i].info[TRUST_CURR].install = strdup (tarpkg);
                      if (!package[i].info[TRUST_CURR].source)
                        package[i].info[TRUST_CURR].source = strdup (path);
                      package[i].info[TRUST_CURR].source_size = size;
                      package[i].info[TRUST_CURR].source_exists = 1;
                      if (package[i].info[TRUST_CURR].version == 0)
                        get_package_version (i, TRUST_CURR);
                    }
                  else
                    {
                      package[i].info[TRUST_CURR].install = strdup (path);
                      package[i].info[TRUST_CURR].install_size = size;
                      package[i].info[TRUST_CURR].install_exists = 1;
                      if (package[i].info[TRUST_CURR].version == 0)
                        get_package_version (i, TRUST_CURR);
                    }
                  break;
                }
              else if (!package[i].info[TRUST_PREV].install)
                {
                  package[i].info[TRUST_PREV].version = 0;
                  int tarsrcext = tarext - 4;
                  if (tarsrcext > 0 && strncmp (path + tarsrcext , "-src", 4) == 0)
                    {
                      int n = find_tar_ext (tarpkg);
                      memmove (tarpkg + n - 4, tarpkg + n, strlen (tarpkg + n) + 1);
                      package[i].info[TRUST_PREV].install = strdup (tarpkg);
                      if (!package[i].info[TRUST_PREV].source)
                        package[i].info[TRUST_PREV].source = strdup (path);
                      package[i].info[TRUST_PREV].source_size = size;
                      package[i].info[TRUST_PREV].source_exists = 1;
                      if (package[i].info[TRUST_PREV].version == 0)
                        get_package_version (i, TRUST_PREV);
                    }
                  else
                    {
                      package[i].info[TRUST_PREV].install = strdup (path);
                      package[i].info[TRUST_PREV].install_size = size;
                      package[i].info[TRUST_PREV].install_exists = 1;
                      if (package[i].info[TRUST_PREV].version == 0)
                        get_package_version (i, TRUST_PREV);
                    }
                  break;
                }
          break;
        }
    }
}

static void
scan_downloaded_files ()
{
  find (".", scan2);
}

static void
read_installed_db ()
{
  int i;
  if (!root_dir)
    return;

  char line[1000], pkg[1000], inst[1000], src[1000];
  int instsz, srcsz;

  FILE *db = fopen (cygpath ("/etc/setup/installed.db", 0), "rt");
  if (!db)
    return;

  while (fgets (line, 1000, db))
    {
      src[0] = 0;
      srcsz = 0;
      sscanf (line, "%s %s %d %s %d", pkg, inst, &instsz, src, &srcsz);

      for (i = 0; i < npackages; i++)
        if (strcmp (package[i].name, pkg) == 0)
          {
            int t;
            extra[i].installed_file = inst;
            extra[i].installed_size = instsz;
            get_package_version (i, -1);

            char *binst = base (inst);
            int n = find_tar_ext (binst) + 4;
            for (t = 0; t < NTRUST; t++)
              if (package[i].info[t].install
                  && strncmp (base (package[i].info[t].install), binst, n) == 0)
                {
                  extra[i].which_is_installed = t;
                  extra[i].installed_ver = package[i].info[t].version;
                  if (extra[i].installed_ver == 0) /* still */
                    get_package_version (i, t);
                  break;
                }

            if (extra[i].installed_ver == 0) /* still */
              get_package_version (i, -1);
            break;
          }
    }
  fclose (db);
}

int
package_sort (const void *va, const void *vb)
{
  Package *a = (Package *)va;
  Package *b = (Package *)vb;
  return strcmp (a->name, b->name);
}

void
do_choose (HINSTANCE h)
{
  int rv, i;

  qsort (package, npackages, sizeof (package[0]), package_sort);

  nextbutton = 0;
  bm_spin = LoadImage (h, MAKEINTRESOURCE (IDB_SPIN), IMAGE_BITMAP, 0, 0, 0);
  bm_rtarrow = LoadImage (h, MAKEINTRESOURCE (IDB_RTARROW), IMAGE_BITMAP, 0, 0, 0);

  bm_checkyes = LoadImage (h, MAKEINTRESOURCE (IDB_CHECK_YES), IMAGE_BITMAP, 0, 0, 0);
  bm_checkno = LoadImage (h, MAKEINTRESOURCE (IDB_CHECK_NO), IMAGE_BITMAP, 0, 0, 0);
  bm_checkna = LoadImage (h, MAKEINTRESOURCE (IDB_CHECK_NA), IMAGE_BITMAP, 0, 0, 0);

  extra = (ExtraPackageInfo *) malloc (npackages * sizeof (ExtraPackageInfo));
  memset (extra, 0, npackages * sizeof (ExtraPackageInfo));
  for (i = 0; i < npackages; i++)
    {
      extra[i].which_is_installed = -1;
      extra[i].in_partial_list = 0;
      extra[i].pick = 1;
      extra[i].chooser[extra[i].pick].trust = TRUST_NONE;
      for (int t = 0; t < NTRUST; t++)
        {
          package[i].info[t].partial_list_display = 0;
          package[i].info[t].install_exists = 0;
          package[i].info[t].source_exists = 0;
        }
    }

  register_windows (h);

  if (source == IDC_SOURCE_DOWNLOAD || source == IDC_SOURCE_CWD)
    scan_downloaded_files ();

  read_installed_db ();
  set_existence ();
  build_labels ();

  rv = DialogBox (h, MAKEINTRESOURCE (IDD_CHOOSE), 0, dialog_proc);
  if (rv == -1)
    fatal (IDS_DIALOG_FAILED);

  for (i = 0; i < npackages; i++)
    {
      switch (extra[i].chooser[extra[i].pick].trust)
        {
        case TRUST_PREV:
        case TRUST_CURR:
        case TRUST_TEST:
          if (extra[i].installed_file)
            package[i].action = ACTION_UPGRADE;
          else
            package[i].action = ACTION_NEW;
          package[i].trust = extra[i].chooser[extra[i].pick].trust;
          break;

        case TRUST_REDO:
          package[i].action = ACTION_REDO;
        if ( extra[i].which_is_installed >= 0 
            && extra[i].which_is_installed <= TRUST_TEST)
          package[i].trust = extra[i].which_is_installed;
        else 
          package[i].trust = TRUST_CURR;
          break;

        case TRUST_UNINSTALL:
          package[i].action = ACTION_UNINSTALL;
          if (package[i].srcaction == SRCACTION_YES)
            package[i].action = ACTION_SRC_ONLY;
          break;

        case TRUST_SRC_ONLY:
          package[i].action = ACTION_SRC_ONLY;
        if ( extra[i].which_is_installed >= 0 
            && extra[i].which_is_installed <= TRUST_TEST)
          package[i].trust = extra[i].which_is_installed;
        else 
          package[i].trust = TRUST_CURR;
          package[i].srcaction = SRCACTION_YES;
          break;

        case TRUST_KEEP:
        case TRUST_NONE:
        default:
          package[i].action = ACTION_SAME;
          if (package[i].srcaction == SRCACTION_YES)
            package[i].action = ACTION_SRC_ONLY;
          break;
        }
    }

  log (LOG_BABBLE, "Chooser results...");
  for (i = 0; i < npackages; i++)
    {
      static char *infos[] = {"prev", "curr", "test"};
      const char *trust = ((package[i].trust == TRUST_PREV) ? "prev"
                           : (package[i].trust == TRUST_CURR) ? "curr"
                           : (package[i].trust == TRUST_TEST) ? "test"
                           : "unknown");
      const char *action = ((package[i].action == ACTION_UNKNOWN) ? "unknown"
                            : (package[i].action == ACTION_SAME) ? "same"
                            : (package[i].action == ACTION_NEW) ? "new"
                            : (package[i].action == ACTION_UPGRADE) ? "upgrade"
                            : (package[i].action == ACTION_UNINSTALL) ? "uninstall"
                            : (package[i].action == ACTION_REDO &&
                               source == IDC_SOURCE_DOWNLOAD) ? "redownload"
                            : (package[i].action == ACTION_REDO &&
                               source != IDC_SOURCE_DOWNLOAD) ? "reinstall"
                            : (package[i].action == ACTION_SRC_ONLY) ? "sources"
                            : (package[i].action == ACTION_ERROR) ? "error"
                            : "unknown");
      const char *installed = ((extra[i].which_is_installed == -1) ? "none"
                               : (extra[i].which_is_installed == TRUST_PREV) ? "prev"
                               : (extra[i].which_is_installed == TRUST_CURR) ? "curr"
                               : (extra[i].which_is_installed == TRUST_TEST) ? "test"
                               : "unknown");
      const char *partial_list = ((extra[i].in_partial_list == 1) ? "yes" : "no");

      log (LOG_BABBLE, "[%s] action=%s trust=%s installed=%s partial_list=%s src?=%s",
           package[i].name, action, trust, installed,
           partial_list, package[i].srcaction == SRCACTION_NO ? "no" : "yes");
      for (int t = 0; t < NTRUST; t++)
        {
          if (package[i].info[t].install)
            log (LOG_BABBLE, "     [%s] ver=%s partial_list=%s \r\n            inst=%s %d exists=%s \r\n            src=%s %d exists=%s",
                 infos[t],
                 package[i].info[t].version ?: "(none)",
                 (package[i].info[t].partial_list_display == 1) ? "yes":"no",
                 package[i].info[t].install ?: "(none)",
                 package[i].info[t].install_size,
                 (package[i].info[t].install_exists == 1) ? "yes":"no",
                 package[i].info[t].source ?: "(none)",
                 package[i].info[t].source_size,
                 (package[i].info[t].source_exists == 1) ? "yes":"no");
        }
    }
}