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  • Committer: Bazaar Package Importer
  • Author(s): Peter Palfrader
  • Date: 2001-10-28 01:28:24 UTC
  • Revision ID: james.westby@ubuntu.com-20011028012824-0jvhpixo5ldm3h85
Tags: upstream-1.0
Import upstream version 1.0

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src/libdeps.c
 
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/* libdeps.c - Retrieve and calculate dependencies for deborphan.
 
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   Copyright (C) 2000 Cris van Pelt
 
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   Distributed under the terms of the Artistic License. */
 
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#include <stdio.h>
 
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#include <stdlib.h>
 
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#include <string.h>
 
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#include <regex.h>
 
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#ifdef HAVE_CONFIG_H
 
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#  include <config.h>
 
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#endif
 
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#include <deborphan.h>
 
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#ifdef USE_XALLOC
 
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#  include <xalloc.h>
 
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#endif
 
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extern int options[];
 
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/* For each package found, this scans the `package' structure, to
 
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 * see if anything depends on it.
 
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 */
 
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void
 
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check_lib_deps(pkg_info * package, pkg_info * current_pkg)
 
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{
 
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    int deps, prov, no_dep_found = 1, search_found = 1;
 
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    int i;
 
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    static int j;
 
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    extern char **search_for;
 
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    if (current_pkg->hold)
 
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        return;
 
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    if (current_pkg->priority < options[PRIORITY])
 
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        return;
 
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    if (keep && mustkeep(current_pkg->self))
 
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        return;
 
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    if (!is_library(current_pkg))
 
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        return;
 
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    if (options[SEARCH]) {
 
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        search_found = 0;
 
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        /* Count packages. Just once. */
 
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        if (!j)
 
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            for (; *(search_for+j); j++);
 
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        /* Search for the package, and clear it from the list if it is
 
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           found. */
 
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        for (i = 0; *(search_for + i); i++) {
 
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            if (!strcmp(*(search_for + i), current_pkg->self.name)) {
 
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                search_found = 1;
 
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                *(search_for + i) = *(search_for + --j);
 
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                *(search_for + j) = NULL;
 
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                break;
 
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            }
 
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        }
 
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    }
 
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    if (!search_found)
 
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        return;
 
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    if (options[SHOW_DEPS]) {
 
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        printf("%s", current_pkg->self.name);
 
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        if (options[SHOW_SECTION])
 
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            printf(" (%s", current_pkg->section);
 
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        if (options[SHOW_PRIORITY])
 
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            printf(" - %s", priority_to_string(current_pkg->priority));
 
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        if (options[SHOW_SECTION])
 
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            printf(")");
 
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        printf("\n");
 
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    }
 
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    /* Search all (installed) packages for dependencies. 
 
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     */
 
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    for (; package && no_dep_found; package = package->next) {
 
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        for (deps = 0; package->deps[deps].name && no_dep_found; deps++) {
 
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            for (prov = 0; current_pkg->provides[prov].name && no_dep_found;
 
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                 prov++) {
 
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                if (pkgcmp(current_pkg->provides[prov], package->deps[deps])) {
 
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                    if (options[SHOW_DEPS])
 
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                        printf("      %s\n", package->self.name);
 
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                    else
 
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                        no_dep_found = 0;
 
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                }
 
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            }
 
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            if (pkgcmp(current_pkg->self, package->deps[deps])) {
 
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                if (options[SHOW_DEPS])
 
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                    printf("      %s\n", package->self.name);
 
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                else
 
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                    no_dep_found = 0;
 
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            }
 
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        }
 
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    }
 
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    if (no_dep_found && (!options[SHOW_DEPS])) {
 
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        if (options[SHOW_SECTION])
 
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            printf("%-25s", current_pkg->section);
 
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        if (options[SHOW_PRIORITY])
 
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            printf("%-24s%s", current_pkg->self.name,
 
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                   priority_to_string(current_pkg->priority));
 
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        else
 
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            printf("%s", current_pkg->self.name);
 
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        printf("\n");
 
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    }
 
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}