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|
/*
* dselect - Debian package maintenance user interface
* main.cc - main program
*
* Copyright © 1994,1995 Ian Jackson <ian@chiark.greenend.org.uk>
* Copyright © 2000,2001 Wichert Akkerman <wakkerma@debian.org>
*
* This 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.
*
* This is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <compat.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <assert.h>
#include <errno.h>
#include <limits.h>
#if HAVE_LOCALE_H
#include <locale.h>
#endif
#include <ctype.h>
#include <string.h>
#include <fcntl.h>
#include <dirent.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#if defined(HAVE_NCURSESW_TERM_H)
#include <ncursesw/term.h>
#elif defined(HAVE_NCURSES_TERM_H)
#include <ncurses/term.h>
#else
#include <term.h>
#endif
#include <dpkg/i18n.h>
#include <dpkg/dpkg.h>
#include <dpkg/dpkg-db.h>
#include <dpkg/myopt.h>
#include "dselect.h"
#include "bindings.h"
#include "pkglist.h"
const char thisname[]= DSELECT;
const char printforhelp[]= N_("Type dselect --help for help.");
modstatdb_rw readwrite;
const char *admindir= ADMINDIR;
FILE *debug;
int expertmode= 0;
static keybindings packagelistbindings(packagelist_kinterps,packagelist_korgbindings);
struct table_t {
const char *name;
const int num;
};
static const struct table_t colourtable[]= {
{"black", COLOR_BLACK },
{"red", COLOR_RED },
{"green", COLOR_GREEN },
{"yellow", COLOR_YELLOW },
{"blue", COLOR_BLUE },
{"magenta", COLOR_MAGENTA },
{"cyan", COLOR_CYAN },
{"white", COLOR_WHITE },
{NULL, 0},
};
static const struct table_t attrtable[]= {
{"normal", A_NORMAL },
{"standout", A_STANDOUT },
{"underline", A_UNDERLINE },
{"reverse", A_REVERSE },
{"blink", A_BLINK },
{"bright", A_BLINK }, // on some terminals
{"dim", A_DIM },
{"bold", A_BOLD },
{NULL, 0},
};
/* A slightly confusing mapping from dselect's internal names to
* the user-visible names.*/
static const struct table_t screenparttable[]= {
{"list", list },
{"listsel", listsel },
{"title", title },
{"infohead", thisstate },
{"pkgstate", selstate },
{"pkgstatesel", selstatesel },
{"listhead", colheads },
{"query", query },
{"info", info },
{"infodesc", info_head },
{"infofoot", whatinfo },
{"helpscreen", helpscreen },
{NULL, 0},
};
/* Historical (patriotic?) colours. */
struct colordata color[]= {
/* fore back attr */
{COLOR_WHITE, COLOR_BLACK, 0 }, // default, not used
{COLOR_WHITE, COLOR_BLACK, 0 }, // list
{COLOR_WHITE, COLOR_BLACK, A_REVERSE }, // listsel
{COLOR_WHITE, COLOR_RED, 0 }, // title
{COLOR_WHITE, COLOR_BLUE, 0 }, // thisstate
{COLOR_WHITE, COLOR_BLACK, A_BOLD }, // selstate
{COLOR_WHITE, COLOR_BLACK, A_REVERSE | A_BOLD }, // selstatesel
{COLOR_WHITE, COLOR_BLUE, 0 }, // colheads
{COLOR_WHITE, COLOR_RED, 0 }, // query
{COLOR_WHITE, COLOR_BLACK, 0 }, // info
{COLOR_WHITE, COLOR_BLACK, A_BOLD }, // info_head
{COLOR_WHITE, COLOR_BLUE, 0 }, // whatinfo
{COLOR_WHITE, COLOR_BLACK, 0 }, // help
};
struct menuentry {
const char *command;
const char *key;
const char *option;
const char *menuent;
urqfunction *fn;
};
static const menuentry menuentries[]= {
{ "access", N_("a"), N_("[A]ccess"), N_("Choose the access method to use."), &urq_setup },
{ "update", N_("u"), N_("[U]pdate"), N_("Update list of available packages, if possible."), &urq_update },
{ "select", N_("s"), N_("[S]elect"), N_("Request which packages you want on your system."), &urq_list },
{ "install", N_("i"), N_("[I]nstall"),N_("Install and upgrade wanted packages."), &urq_install },
{ "config", N_("c"), N_("[C]onfig"), N_("Configure any packages that are unconfigured."), &urq_config },
{ "remove", N_("r"), N_("[R]emove"), N_("Remove unwanted software."), &urq_remove },
{ "quit", N_("q"), N_("[Q]uit"), N_("Quit dselect."), &urq_quit },
{ 0, 0, N_("menu"), 0, &urq_menu },
{ 0 }
};
static const char programdesc[]=
N_("Debian `%s' package handling frontend version %s.\n");
static const char copyrightstring[]= N_(
"Copyright (C) 1994-1996 Ian Jackson.\n"
"Copyright (C) 2000,2001 Wichert Akkerman.\n");
static const char licensestring[]= N_(
"This is free software; see the GNU General Public License version 2 or\n"
"later for copying conditions. There is NO warranty.\n"
"See %s --license for copyright and license details.\n");
static void DPKG_ATTR_NORET
printversion(const struct cmdinfo *ci, const char *value)
{
printf(gettext(programdesc), DSELECT, DPKG_VERSION_ARCH);
printf(gettext(copyrightstring));
printf(gettext(licensestring), DSELECT);
m_output(stdout, _("<standard output>"));
exit(0);
}
static void DPKG_ATTR_NORET
usage(const struct cmdinfo *ci, const char *value)
{
int i;
printf(_(
"Usage: %s [<option> ...] [<action> ...]\n"
"\n"), DSELECT);
printf(_(
"Options:\n"
" --admindir <directory> Use <directory> instead of %s.\n"
" --expert Turn on expert mode.\n"
" --debug <file> | -D<file> Turn on debugging, sending output to <file>.\n"
" --colour | --color screenpart:[foreground],[background][:attr[+attr+..]]\n"
" Configure screen colours.\n"
"\n"), ADMINDIR);
printf(_(
" --help Show this help message.\n"
" --version Show the version.\n"
" --license | --licence Show the license.\n"
"\n"));
printf(_(
"Actions:\n"
" access update select install config remove quit\n"
"\n"));
printf(_("Screenparts:\n"));
for (i=0; screenparttable[i].name; i++)
printf(" %s", screenparttable[i].name);
fputs("\n\n", stdout);
printf(_("Colours:\n"));
for (i=0; colourtable[i].name; i++)
printf(" %s", colourtable[i].name);
fputs("\n\n", stdout);
printf(_("Attributes:\n"));
for (i=0; attrtable[i].name; i++)
printf(" %s", attrtable[i].name);
fputs("\n\n", stdout);
m_output(stdout, _("<standard output>"));
exit(0);
}
/* These are called by C code, so need to have C calling convention */
extern "C" {
static void setdebug(const struct cmdinfo*, const char *v) {
debug= fopen(v,"a");
if (!debug) ohshite(_("couldn't open debug file `%.255s'\n"),v);
setvbuf(debug,0,_IONBF,0);
}
static void setexpert(const struct cmdinfo*, const char *v) {
expertmode= 1;
}
static int
findintable(const struct table_t *table, const char *item, const char *tablename)
{
int i;
for (i= 0; item && (table[i].name!=NULL); i++)
if (strcasecmp(item, table[i].name) == 0)
return table[i].num;
ohshit(_("Invalid %s `%s'\n"), tablename, item);
}
/*
* The string's format is:
* screenpart:[forecolor][,backcolor][:[<attr>, ...]
* Examples: --color title:black,cyan:bright+underline
* --color list:red,yellow
* --color colheads:,green:bright
* --color selstate::reverse // doesn't work FIXME
*/
static void setcolor(const struct cmdinfo*, const char *string) {
char *s= (char *) malloc((strlen(string) + 1) * sizeof(char));
char *colours, *attributes, *attrib, *colourname;
int screenpart, aval;
strcpy(s, string); // strtok modifies strings, keep string const
screenpart= findintable(screenparttable, strtok(s, ":"), _("screen part"));
colours= strtok(NULL, ":");
attributes= strtok(NULL, ":");
if ((colours == NULL || ! strlen(colours)) &&
(attributes == NULL || ! strlen(attributes))) {
ohshit(_("Null colour specification\n"));
}
if (colours != NULL && strlen(colours)) {
colourname= strtok(colours, ",");
if (colourname != NULL && strlen(colourname)) {
// normalize attributes to prevent confusion
color[screenpart].attr= A_NORMAL;
color[screenpart].fore=findintable(colourtable, colourname, _("colour"));
}
colourname= strtok(NULL, ",");
if (colourname != NULL && strlen(colourname)) {
color[screenpart].attr= A_NORMAL;
color[screenpart].back=findintable(colourtable, colourname, _("colour"));
}
}
if (attributes != NULL && strlen(attributes)) {
for (attrib= strtok(attributes, "+");
attrib != NULL && strlen(attrib);
attrib= strtok(NULL, "+")) {
aval=findintable(attrtable, attrib, _("colour attribute"));
if (aval == A_NORMAL) // set to normal
color[screenpart].attr= aval;
else // add to existing attribs
color[screenpart].attr= color[screenpart].attr | aval;
}
}
}
} /* End of extern "C" */
static const struct cmdinfo cmdinfos[]= {
{ "admindir", 0, 1, 0, &admindir, 0 },
{ "debug", 'D', 1, 0, 0, setdebug },
{ "expert", 'E', 0, 0, 0, setexpert },
{ "help", 'h', 0, 0, 0, usage },
{ "version", 0, 0, 0, 0, printversion },
{ "licence", 0, 0, 0, 0, showcopyright }, /* UK spelling */
{ "license", 0, 0, 0, 0, showcopyright }, /* US spelling */
{ "color", 0, 1, 0, 0, setcolor }, /* US spelling */
{ "colour", 0, 1, 0, 0, setcolor }, /* UK spelling */
{ 0, 0, 0, 0, 0, 0 }
};
static int cursesareon= 0;
void curseson() {
if (!cursesareon) {
const char *cup, *smso;
initscr();
cup= tigetstr("cup");
smso= tigetstr("smso");
if (!cup || !smso) {
endwin();
if (!cup)
fputs(_("Terminal does not appear to support cursor addressing.\n"),stderr);
if (!smso)
fputs(_("Terminal does not appear to support highlighting.\n"),stderr);
fprintf(stderr,
_("Set your TERM variable correctly, use a better terminal,\n"
"or make do with the per-package management tool %s.\n"),
DPKG);
ohshit(_("terminal lacks necessary features, giving up"));
}
}
cursesareon= 1;
}
void cursesoff() {
if (cursesareon) {
clear();
refresh();
endwin();
}
cursesareon=0;
}
extern void *operator new(size_t size) {
void *p;
p= m_malloc(size);
assert(p);
return p;
}
extern void operator delete(void *p) {
free(p);
}
urqresult urq_list(void) {
readwrite= modstatdb_init(admindir,msdbrw_writeifposs);
curseson();
packagelist *l= new packagelist(&packagelistbindings);
l->resolvesuggest();
l->display();
delete l;
modstatdb_shutdown();
resetpackages();
return urqr_normal;
}
static void
dme(int i, int so)
{
char buf[120];
const menuentry *me= &menuentries[i];
sprintf(buf," %c %d. %-11.11s %-80.80s ",
so ? '*' : ' ', i,
gettext(me->option),
gettext(me->menuent));
int y,x;
getmaxyx(stdscr,y,x);
attrset(so ? A_REVERSE : A_NORMAL);
mvaddnstr(i+2,0, buf,x-1);
attrset(A_NORMAL);
}
static int
refreshmenu(void)
{
char buf[2048];
static int l,lockfd;
static char *lockfile;
curseson(); cbreak(); noecho(); nonl(); keypad(stdscr,TRUE);
int y,x;
getmaxyx(stdscr,y,x);
clear();
attrset(A_BOLD);
sprintf(buf, gettext(programdesc), DSELECT, DPKG_VERSION_ARCH);
mvaddnstr(0,0,buf,x-1);
attrset(A_NORMAL);
const struct menuentry *mep; int i;
for (mep=menuentries, i=0; mep->option && mep->menuent; mep++, i++)
dme(i,0);
attrset(A_BOLD);
addstr(_("\n\n"
"Move around with ^P and ^N, cursor keys, initial letters, or digits;\n"
"Press <enter> to confirm selection. ^L redraws screen.\n\n"));
attrset(A_NORMAL);
addstr(gettext(copyrightstring));
sprintf(buf, gettext(licensestring), DSELECT);
addstr(buf);
l= strlen(admindir);
lockfile= new char[l+sizeof(LOCKFILE)+2];
strcpy(lockfile,admindir);
strcpy(lockfile+l, "/" LOCKFILE);
lockfd= open(lockfile, O_RDWR|O_CREAT|O_TRUNC, 0660);
if (errno == EACCES || errno == EPERM)
addstr(_("\n\n"
"Read-only access: only preview of selections is available!"));
return i;
}
urqresult urq_menu(void) {
#define C(x) ((x)-'a'+1)
int entries, c;
entries= refreshmenu();
int cursor=0;
dme(0,1);
for (;;) {
refresh();
do
c= getch();
while (c == ERR && errno == EINTR);
if (c==ERR) {
if(errno != 0)
ohshite(_("failed to getch in main menu"));
else {
clearok(stdscr,TRUE); clear(); refreshmenu(); dme(cursor,1);
}
}
if (c==C('n') || c==KEY_DOWN || c==' ' || c=='j') {
dme(cursor,0); cursor++; cursor %= entries; dme(cursor,1);
} else if (c==C('p') || c==KEY_UP || c==C('h') ||
c==KEY_BACKSPACE || c==KEY_DC || c=='k') {
dme(cursor,0); cursor+= entries-1; cursor %= entries; dme(cursor,1);
} else if (c=='\n' || c=='\r' || c==KEY_ENTER) {
clear(); refresh();
switch (menuentries[cursor].fn()) { /* FIXME: trap errors in urq_... */
case urqr_quitmenu:
return urqr_quitmenu;
case urqr_normal:
cursor++; cursor %= entries;
case urqr_fail:
break;
default:
internerr("unknown menufn");
}
refreshmenu(); dme(cursor,1);
} else if (c==C('l')) {
clearok(stdscr,TRUE); clear(); refreshmenu(); dme(cursor,1);
} else if (isdigit(c)) {
char buf[2]; buf[0]=c; buf[1]=0; c=atoi(buf);
if (c < entries) {
dme(cursor,0); cursor=c; dme(cursor,1);
} else {
beep();
}
} else if (isalpha(c)) {
c= tolower(c);
int i = 0;
while (i < entries && gettext(menuentries[i].key)[0] != c)
i++;
if (i < entries) {
dme(cursor,0); cursor=i; dme(cursor,1);
} else {
beep();
}
} else {
beep();
}
}
}
urqresult urq_quit(void) {
/* FIXME: check packages OK. */
return urqr_quitmenu;
}
int main(int, const char *const *argv) {
jmp_buf ejbuf;
setlocale(LC_ALL, "");
bindtextdomain(DSELECT, LOCALEDIR);
textdomain(DSELECT);
if (setjmp(ejbuf)) { /* expect warning about possible clobbering of argv */
cursesoff();
error_unwind(ehflag_bombout); exit(2);
}
push_error_handler(&ejbuf,print_error_fatal,0);
loadcfgfile(DSELECT, cmdinfos);
myopt(&argv,cmdinfos);
if (*argv) {
const char *a;
while ((a= *argv++) != 0) {
const menuentry *me = menuentries;
while (me->command && strcmp(me->command, a))
me++;
if (!me->command) badusage(_("unknown action string `%.50s'"),a);
me->fn();
}
} else {
urq_menu();
}
cursesoff();
standard_shutdown();
return(0);
}
|