346 lines
8.7 KiB
C
346 lines
8.7 KiB
C
#ifndef lint
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static const char rcsid[] =
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"$FreeBSD$";
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#endif
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/*
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* FreeBSD install - a package for the installation and maintainance
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* of non-core utilities.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* Jordan K. Hubbard
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* 18 July 1993
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*
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* This is the main body of the create module.
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*
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*/
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#include "lib.h"
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#include "create.h"
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#include <err.h>
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#include <signal.h>
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#include <sys/syslimits.h>
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#include <sys/wait.h>
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#include <unistd.h>
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static void sanity_check(void);
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static void make_dist(char *, char *, char *, Package *);
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static char *home;
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int
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pkg_perform(char **pkgs)
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{
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char *pkg = *pkgs; /* Only one arg to create */
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char *cp;
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FILE *pkg_in, *fp;
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Package plist;
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int len;
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char *suf;
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int compress = 0;
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/* Preliminary setup */
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sanity_check();
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if (Verbose && !PlistOnly)
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printf("Creating package %s\n", pkg);
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get_dash_string(&Comment);
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get_dash_string(&Desc);
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if (!strcmp(Contents, "-"))
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pkg_in = stdin;
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else {
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pkg_in = fopen(Contents, "r");
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if (!pkg_in) {
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cleanup(0);
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errx(2, "unable to open contents file '%s' for input", Contents);
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}
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}
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plist.head = plist.tail = NULL;
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/* chop suffix off if already specified, remembering if we want to compress */
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len = strlen(pkg);
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if (len > 4) {
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if (!strcmp(&pkg[len - 4], ".tgz")) {
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compress = TRUE;
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pkg[len - 4] = '\0';
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}
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else if (!strcmp(&pkg[len - 4], ".tar")) {
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compress = FALSE;
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pkg[len - 4] = '\0';
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}
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else
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/* default is to compress packages */
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compress = TRUE;
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}
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if (compress)
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suf = "tgz";
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else
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suf = "tar";
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/* Stick the dependencies, if any, at the top */
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if (Pkgdeps) {
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if (Verbose && !PlistOnly)
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printf("Registering depends:");
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while (Pkgdeps) {
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cp = strsep(&Pkgdeps, " \t\n");
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if (*cp) {
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add_plist(&plist, PLIST_PKGDEP, cp);
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if (Verbose && !PlistOnly)
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printf(" %s", cp);
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}
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}
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if (Verbose && !PlistOnly)
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printf(".\n");
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}
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/* If a SrcDir override is set, add it now */
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if (SrcDir) {
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if (Verbose && !PlistOnly)
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printf("Using SrcDir value of %s\n", SrcDir);
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add_plist(&plist, PLIST_SRC, SrcDir);
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}
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/* Slurp in the packing list */
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read_plist(&plist, pkg_in);
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/* Prefix should add an @cwd to the packing list */
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if (Prefix)
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add_plist_top(&plist, PLIST_CWD, Prefix);
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/*
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* Run down the list and see if we've named it, if not stick in a name
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* at the top.
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*/
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if (find_plist(&plist, PLIST_NAME) == NULL)
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add_plist_top(&plist, PLIST_NAME, basename_of(pkg));
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/*
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* We're just here for to dump out a revised plist for the FreeBSD ports
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* hack. It's not a real create in progress.
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*/
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if (PlistOnly) {
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check_list(home, &plist);
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write_plist(&plist, stdout);
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exit(0);
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}
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/* Make a directory to stomp around in */
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home = make_playpen(PlayPen, 0);
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signal(SIGINT, cleanup);
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signal(SIGHUP, cleanup);
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/* Make first "real contents" pass over it */
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check_list(home, &plist);
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(void) umask(022); /* make sure gen'ed directories, files don't have
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group or other write bits. */
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/* copy_plist(home, &plist); */
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/* mark_plist(&plist); */
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/* Now put the release specific items in */
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add_plist(&plist, PLIST_CWD, ".");
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write_file(COMMENT_FNAME, Comment);
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add_plist(&plist, PLIST_IGNORE, NULL);
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add_plist(&plist, PLIST_FILE, COMMENT_FNAME);
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write_file(DESC_FNAME, Desc);
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add_plist(&plist, PLIST_IGNORE, NULL);
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add_plist(&plist, PLIST_FILE, DESC_FNAME);
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if (Install) {
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copy_file(home, Install, INSTALL_FNAME);
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add_plist(&plist, PLIST_IGNORE, NULL);
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add_plist(&plist, PLIST_FILE, INSTALL_FNAME);
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}
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if (PostInstall) {
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copy_file(home, PostInstall, POST_INSTALL_FNAME);
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add_plist(&plist, PLIST_IGNORE, NULL);
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add_plist(&plist, PLIST_FILE, POST_INSTALL_FNAME);
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}
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if (DeInstall) {
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copy_file(home, DeInstall, DEINSTALL_FNAME);
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add_plist(&plist, PLIST_IGNORE, NULL);
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add_plist(&plist, PLIST_FILE, DEINSTALL_FNAME);
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}
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if (PostDeInstall) {
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copy_file(home, PostDeInstall, POST_DEINSTALL_FNAME);
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add_plist(&plist, PLIST_IGNORE, NULL);
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add_plist(&plist, PLIST_FILE, POST_DEINSTALL_FNAME);
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}
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if (Require) {
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copy_file(home, Require, REQUIRE_FNAME);
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add_plist(&plist, PLIST_IGNORE, NULL);
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add_plist(&plist, PLIST_FILE, REQUIRE_FNAME);
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}
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if (Display) {
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copy_file(home, Display, DISPLAY_FNAME);
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add_plist(&plist, PLIST_IGNORE, NULL);
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add_plist(&plist, PLIST_FILE, DISPLAY_FNAME);
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add_plist(&plist, PLIST_DISPLAY, DISPLAY_FNAME);
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}
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if (Mtree) {
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copy_file(home, Mtree, MTREE_FNAME);
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add_plist(&plist, PLIST_IGNORE, NULL);
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add_plist(&plist, PLIST_FILE, MTREE_FNAME);
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add_plist(&plist, PLIST_MTREE, MTREE_FNAME);
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}
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/* Finally, write out the packing list */
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fp = fopen(CONTENTS_FNAME, "w");
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if (!fp) {
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cleanup(0);
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errx(2, "can't open file %s for writing", CONTENTS_FNAME);
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}
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write_plist(&plist, fp);
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if (fclose(fp)) {
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cleanup(0);
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errx(2, "error while closing %s", CONTENTS_FNAME);
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}
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/* And stick it into a tar ball */
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make_dist(home, pkg, suf, &plist);
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/* Cleanup */
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free(Comment);
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free(Desc);
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free_plist(&plist);
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leave_playpen();
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return TRUE; /* Success */
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}
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static void
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make_dist(char *home, char *pkg, char *suffix, Package *plist)
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{
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char tball[FILENAME_MAX];
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PackingList p;
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int ret;
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char *args[50]; /* Much more than enough. */
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int nargs = 0;
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int pipefds[2];
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FILE *totar;
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pid_t pid;
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args[nargs++] = "tar"; /* argv[0] */
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if (*pkg == '/')
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snprintf(tball, FILENAME_MAX, "%s.%s", pkg, suffix);
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else
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snprintf(tball, FILENAME_MAX, "%s/%s.%s", home, pkg, suffix);
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args[nargs++] = "-c";
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args[nargs++] = "-f";
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args[nargs++] = tball;
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if (index(suffix, 'z')) /* Compress/gzip? */
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args[nargs++] = "-z";
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if (Dereference)
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args[nargs++] = "-h";
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if (ExcludeFrom) {
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args[nargs++] = "-X";
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args[nargs++] = ExcludeFrom;
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}
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args[nargs++] = "-T"; /* Take filenames from file instead of args. */
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args[nargs++] = "-"; /* Use stdin for the file. */
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args[nargs] = NULL;
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if (Verbose)
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printf("Creating gzip'd tar ball in '%s'\n", tball);
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/* Set up a pipe for passing the filenames, and fork off a tar process. */
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if (pipe(pipefds) == -1) {
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cleanup(0);
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errx(2, "cannot create pipe");
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}
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if ((pid = fork()) == -1) {
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cleanup(0);
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errx(2, "cannot fork process for tar");
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}
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if (pid == 0) { /* The child */
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dup2(pipefds[0], 0);
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close(pipefds[0]);
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close(pipefds[1]);
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execv("/usr/bin/tar", args);
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cleanup(0);
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errx(2, "failed to execute tar command");
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}
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/* Meanwhile, back in the parent process ... */
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close(pipefds[0]);
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if ((totar = fdopen(pipefds[1], "w")) == NULL) {
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cleanup(0);
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errx(2, "fdopen failed");
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}
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fprintf(totar, "%s\n", CONTENTS_FNAME);
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fprintf(totar, "%s\n", COMMENT_FNAME);
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fprintf(totar, "%s\n", DESC_FNAME);
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if (Install)
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fprintf(totar, "%s\n", INSTALL_FNAME);
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if (PostInstall)
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fprintf(totar, "%s\n", POST_INSTALL_FNAME);
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if (DeInstall)
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fprintf(totar, "%s\n", DEINSTALL_FNAME);
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if (PostDeInstall)
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fprintf(totar, "%s\n", POST_DEINSTALL_FNAME);
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if (Require)
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fprintf(totar, "%s\n", REQUIRE_FNAME);
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if (Display)
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fprintf(totar, "%s\n", DISPLAY_FNAME);
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if (Mtree)
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fprintf(totar, "%s\n", MTREE_FNAME);
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for (p = plist->head; p; p = p->next) {
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if (p->type == PLIST_FILE)
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fprintf(totar, "%s\n", p->name);
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else if (p->type == PLIST_CWD || p->type == PLIST_SRC)
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fprintf(totar, "-C\n%s\n", p->name);
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else if (p->type == PLIST_IGNORE)
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p = p->next;
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}
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fclose(totar);
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wait(&ret);
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/* assume either signal or bad exit is enough for us */
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if (ret) {
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cleanup(0);
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errx(2, "tar command failed with code %d", ret);
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}
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}
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static void
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sanity_check()
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{
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if (!Comment) {
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cleanup(0);
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errx(2, "required package comment string is missing (-c comment)");
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}
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if (!Desc) {
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cleanup(0);
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errx(2, "required package description string is missing (-d desc)");
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}
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if (!Contents) {
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cleanup(0);
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errx(2, "required package contents list is missing (-f [-]file)");
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}
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}
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/* Clean up those things that would otherwise hang around */
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void
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cleanup(int sig)
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{
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int in_cleanup = 0;
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if (!in_cleanup) {
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in_cleanup = 1;
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leave_playpen();
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}
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if (sig)
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exit(1);
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}
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