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path: root/src/pacman/files.c
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/*
 *  files.c
 *
 *  Copyright (c) 2015 Pacman Development Team <pacman-dev@archlinux.org>
 *
 *  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.
 *
 *  This program 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 <alpm.h>
#include <alpm_list.h>
#include <regex.h>

/* pacman */
#include "pacman.h"
#include "util.h"
#include "conf.h"
#include "package.h"


static int files_fileowner(alpm_list_t *syncs, alpm_list_t *targets) {
        int ret = 0;
        alpm_list_t *t;

        for(t = targets; t; t = alpm_list_next(t)) {
                char *filename = NULL, *f;
                int found = 0;
                alpm_list_t *s;
                size_t len;

                if((filename = strdup(t->data)) == NULL) {
                        goto notfound;
                }

                len = strlen(filename);
                f = filename;
                while(len > 1 && f[0] == '/') {
                        f = f + 1;
                        len--;
                }

                for(s = syncs; s; s = alpm_list_next(s)) {
                        alpm_list_t *p;
                        alpm_db_t *repo = s->data;
                        alpm_list_t *packages = alpm_db_get_pkgcache(repo);

                        for(p = packages; p; p = alpm_list_next(p)) {
                                alpm_pkg_t *pkg = p->data;
                                alpm_filelist_t *files = alpm_pkg_get_files(pkg);

                                if(alpm_filelist_contains(files, f)) {

                                        if(!config->quiet) {
                                                printf(_("%s is owned by %s/%s %s\n"), f,
                                                                alpm_db_get_name(repo), alpm_pkg_get_name(pkg),
                                                                alpm_pkg_get_version(pkg));
                                        } else {
                                                printf("%s/%s\n", alpm_db_get_name(repo), alpm_pkg_get_name(pkg));
                                        }

                                        found = 1;
                                }
                        }
                }

                free(filename);

notfound:
                if(!found) {
                        ret++;
                }
        }

        return 0;
}

static int files_search(alpm_list_t *syncs, alpm_list_t *targets, int regex) {
        int ret = 0;
        alpm_list_t *t;
        const colstr_t *colstr = &config->colstr;

        for(t = targets; t; t = alpm_list_next(t)) {
                char *targ = NULL;
                alpm_list_t *s;
                int found = 0;
                regex_t reg;

                if((targ = strdup(t->data)) == NULL) {
                        goto notfound;
                }

                if(regex) {
                        if(regcomp(&reg, targ, REG_EXTENDED | REG_NOSUB | REG_ICASE | REG_NEWLINE) != 0) {
                                /* TODO: error message */
                                free(targ);
                                goto notfound;
                        }
                }

                for(s = syncs; s; s = alpm_list_next(s)) {
                        alpm_list_t *p;
                        alpm_db_t *repo = s->data;
                        alpm_list_t *packages = alpm_db_get_pkgcache(repo);
                        int m;

                        for(p = packages; p; p = alpm_list_next(p)) {
                                size_t f = 0;
                                char* c;
                                alpm_pkg_t *pkg = p->data;
                                alpm_filelist_t *files = alpm_pkg_get_files(pkg);
                                alpm_list_t *match = NULL;

                                while(f < files->count) {
                                        c = strrchr(files->files[f].name, '/');
                                        if(c && *(c + 1)) {
                                                if(regex) {
                                                        m = regexec(&reg, (c + 1), 000);
                                                } else {
                                                        m = strcmp(c + 1, targ);
                                                }
                                                if(m == 0) {
                                                        match = alpm_list_add(match, strdup(files->files[f].name));
                                                        found = 1;
                                                }
                                        }
                                        f++;
                                }

                                if(match != NULL) {
                                        if(config->quiet) {
                                                printf("%s/%s\n", alpm_db_get_name(repo), alpm_pkg_get_name(pkg));
                                        } else {
                                                alpm_list_t *ml;
                                                printf("%s%s/%s%s %s%s%s\n", colstr->repo, alpm_db_get_name(repo),
                                                        colstr->title, alpm_pkg_get_name(pkg),
                                                        colstr->version, alpm_pkg_get_version(pkg), colstr->nocolor);

                                                for(ml = match; ml; ml = alpm_list_next(ml)) {
                                                        c = ml->data;
                                                        printf("    %s\n", c);
                                                }
                                                FREELIST(match);
                                        }
                                }
                        }
                }

                free(targ);

notfound:
                if(!found) {
                        ret++;
                }
        }

        return 0;
}

static void dump_file_list(alpm_pkg_t *pkg) {
        const char *pkgname;
        alpm_filelist_t *pkgfiles;
        size_t i;

        pkgname = alpm_pkg_get_name(pkg);
        pkgfiles = alpm_pkg_get_files(pkg);

        for(i = 0; i < pkgfiles->count; i++) {
                const alpm_file_t *file = pkgfiles->files + i;
                /* Regular: '<pkgname> <filepath>\n'
                 * Quiet  : '<filepath>\n'
                 */
                if(!config->quiet) {
                        printf("%s%s%s ", config->colstr.title, pkgname, config->colstr.nocolor);
                }
                printf("%s\n", file->name);
        }

        fflush(stdout);
}

static int files_list(alpm_list_t *syncs, alpm_list_t *targets) {
        alpm_list_t *i, *j;
        int ret = 0, found = 0;

        if(targets != NULL) {
                for(i = targets; i; i = alpm_list_next(i)) {
                        char *targ = i->data;
                        char *repo = NULL;
                        char *c = strchr(targ, '/');

                        if(c) {
                                if(! *(c + 1)) {
                                        pm_printf(ALPM_LOG_ERROR,
                                                _("invalid package: '%s'\n"), targ);
                                        ret += 1;
                                        continue;
                                }

                                repo = strndup(targ, c - targ);
                                targ = c + 1;
                        }

                        for(j = syncs; j; j = alpm_list_next(j)) {
                                alpm_pkg_t *pkg;
                                alpm_db_t *db = j->data;

                                if(repo) {
                                        if(strcmp(alpm_db_get_name(db), repo) != 0) {
                                                continue;
                                        }
                                }

                                if((pkg = alpm_db_get_pkg(db, targ)) != NULL) {
                                        found = 1;
                                        dump_file_list(pkg);
                                        break;
                                }
                        }
                        if(!found) {
                                targ = i->data;
                                pm_printf(ALPM_LOG_ERROR,
                                                _("package '%s' was not found\n"), targ);
                                ret += 1;
                        }
                        free(repo);
                }
        } else {
                for(i = syncs; i; i = alpm_list_next(i)) {
                alpm_db_t *db = i->data;

                        for(j = alpm_db_get_pkgcache(db); j; j = alpm_list_next(j)) {
                                alpm_pkg_t *pkg = j->data;
                                dump_file_list(pkg);
                        }
                }
        }

        return ret;
}


int pacman_files(alpm_list_t *targets)
{
        alpm_list_t *files_dbs = NULL;

        if(check_syncdbs(10)) {
                return 1;
        }

        files_dbs = alpm_get_syncdbs(config->handle);

        if(config->op_s_sync) {
                /* grab a fresh package list */
                colon_printf(_("Synchronizing package databases...\n"));
                alpm_logaction(config->handle, PACMAN_CALLER_PREFIX,
                                "synchronizing package lists\n");
                if(!sync_syncdbs(config->op_s_sync, files_dbs)) {
                        return 1;
                }
        }

        if(targets == NULL && (config->op_s_search || config->op_q_owns)) {
                pm_printf(ALPM_LOG_ERROR, _("no targets specified (use -h for help)\n"));
                return 1;
        }

        /* determine the owner of a file */
        if(config->op_q_owns) {
                return files_fileowner(files_dbs, targets);
        }

        /* search for a file */
        if(config->op_s_search) {
                return files_search(files_dbs, targets, config->op_f_regex);
        }

        /* get a listing of files in sync DBs */
        if(config->op_q_list) {
                return files_list(files_dbs, targets);
        }


        return 0;
}