baseline

yet another open-source distributed versioning control system
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session.c (2490B)


      1 /*
      2  * Copyright (c) 2014 Mohamed Aslan <maslan@sce.carleton.ca>
      3  *
      4  * Permission to use, copy, modify, and distribute this software for any
      5  * purpose with or without fee is hereby granted, provided that the above
      6  * copyright notice and this permission notice appear in all copies.
      7  *
      8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
      9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
     14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     15  */
     16 
     17 #include <stdio.h>		/* asprintf(3) */
     18 #include <stdlib.h>		/* EXIT_* */
     19 #include <limits.h>		/* PATH_MAX */
     20 #include <unistd.h>		/* getcwd(3) */
     21 #include <err.h>		/* errx(3) */
     22 
     23 #include "defaults.h"
     24 #include "config.h"
     25 #include "session.h"
     26 
     27 extern int objdb_baseline_get_ops(struct objdb_ops **);
     28 extern int dircache_simple_get_ops(struct dircache_ops **);
     29 
     30 int
     31 baseline_session_begin(struct session *s, u_int8_t options)
     32 {
     33 	char *config = NULL;
     34 
     35 	objdb_baseline_get_ops(&(s->db_ops));
     36 	dircache_simple_get_ops(&(s->dc_ops));
     37 
     38 	if (getcwd((char *)s->cwd, sizeof(s->cwd)) == NULL)
     39 		errx(EXIT_FAILURE, "error, can not read current directory.");
     40 
     41 	if (options & SESSION_NONINIT) {
     42 		return EXIT_SUCCESS;
     43 	}
     44 
     45 	s->repo_rootdir = baseline_repo_get_rootdir();
     46 	s->repo_baselinedir = baseline_repo_get_baselinedir();
     47 
     48 	if (s->repo_rootdir == NULL)
     49 		errx(EXIT_FAILURE, "error, no repository was found.");
     50 	if (s->db_ops->open(&(s->db_ctx), BASELINE_DB, s->repo_baselinedir) == EXIT_FAILURE)
     51 		return EXIT_FAILURE;
     52 	if (s->dc_ops->open(&(s->dc_ctx), s->db_ctx, s->db_ops, s->repo_rootdir, s->repo_baselinedir) == EXIT_FAILURE)
     53 		return EXIT_FAILURE;
     54 
     55 	/* load configurations */
     56 	asprintf(&config, "%s/%s", s->repo_baselinedir, BASELINE_CONFIGFILE);
     57 	if (baseline_config_load(config) == EXIT_FAILURE)
     58 		errx(EXIT_FAILURE, "failed to load configurations.");
     59 	free(config);
     60 
     61 	/* get current branch */
     62 	s->dc_ops->branch_get(s->dc_ctx, (char **)&(s->branch));
     63 
     64 	return EXIT_SUCCESS;
     65 }
     66 
     67 int
     68 baseline_session_end(struct session *s)
     69 {
     70 	if (s->db_ops->close(s->db_ctx) == EXIT_FAILURE)
     71 		return EXIT_FAILURE;
     72 	if (s->dc_ops->close(s->dc_ctx) == EXIT_FAILURE)
     73 		return EXIT_FAILURE;
     74 	return EXIT_SUCCESS;
     75 }
     76