(main): Switched to getopt_long.

git-svn-id: file:///home/puszcza/svnroot/ellinika/trunk@161 941c8c0f-9102-463b-b60b-cd22ce0e6858

1 files changed, 127 insertions, 20 deletions

diff --git a/src/main.c b/src/main.c
index edbcef3..eea1ab4 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,17 +1,44 @@
+/*
+   This file is part of Ellinika project.
+   Copyright (C) 2004 Sergey Poznyakoff
+
+   Ellinika 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.
+
+   Ellinika 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 Ellinika; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
 #include "trans.h"
 #include <unistd.h>
+#include <getopt.h>
+
+char *sql_database;      /* Database name */
+char *sql_host;          /* SQL server host name */
+int sql_port = 3306;     /* SQL port */
+char *sql_user;          /* SQL user name */
+char *sql_password;      /* Password for this user */
 
-char *sql_database;
-char *sql_host;
-int sql_port = 3306;
-char *sql_password;
-char *sql_user;
-int debug;
-int compile_only;
-int cleanup_flag;
-static int error_count;
-static RAD_LIST *include_list;
-static char *m4_bin = "/usr/bin/m4"; /* FIXME: Should be autoconf'ed */
+int compile_only;        /* Compile input into the internal representation
+			    and exit. Do not write the database */
+
+int preserve_flag;       /* Preserve closed cross-reference links in
+			    pending_links table. */
+int debug;               /* Debug level */
+
+static int error_count;  /* Number of errors encountered during compilation */
+
+static RAD_LIST *include_list; /* List of m4 include directories */
+static char *m4_bin = "/usr/bin/m4"; /* Full file name to the m4 binary.
+					FIXME: Should be autoconf'ed */
 
 void *
 emalloc(size_t size)
@@ -162,7 +189,7 @@ pending_fixup()
 	sql_query("UPDATE pending_links p, dict d SET p.type='CLOSED' "
 		  "WHERE p.word = d.word");
 
-	if (cleanup_flag)
+	if (!preserve_flag)
 		sql_query("DELETE FROM pending_links WHERE type = 'CLOSED'");
 
 	if (sql_query("SELECT count(*) FROM pending_links "
@@ -186,23 +213,86 @@ update_stat()
 		  count);
 }
 
+void
+cleanup_db()
+{
+	sql_query("DELETE FROM links");            
+	sql_query("DELETE FROM articles");         
+	sql_query("DELETE FROM dict");            
+	sql_query("DELETE FROM topic");          
+	sql_query("DELETE FROM topic_tab");
+}
+
 
 
+#define ARG_CLEANUP  256
+#define ARG_HELP     257
+#define ARG_VERSION  258
+#define ARG_PRESERVE 259
+
+struct option option[] = {
+	{ "check",       no_argument,       0,  'c' },
+	{ "cleanup",     no_argument,       0,  ARG_CLEANUP },
+	{ "database",    required_argument, 0, 'd' },
+	{ "host",        required_argument, 0, 'h' },
+	{ "port",        required_argument, 0, 'P' },
+	{ "password",    required_argument, 0, 'p' },
+	{ "user",        required_argument, 0, 'u' },
+	{ "verbose",     no_argument,       0, 'v' },
+	{ "include-dir", required_argument, 0, 'I' },
+	{ "m4-path",     required_argument, 0, 'm' },
+	{ "help",        no_argument,       0, ARG_HELP },
+	{ "version",     no_argument,       0, ARG_VERSION },
+	{ NULL }
+};
+
+
+void
+usage()
+{
+	printf("usage: trans [OPTIONS] [FILE...]\n\
+\n\
+Options are:\n\
+Database location:\n\
+  -d, --database=NAME    Set the database name\n\
+  -h, --host=NAME        Set the host name or IP address\n\
+  -P, --port             Set the port number to connect to\n\
+  -u, --user=NAME        Set MySQL user name\n\
+  -p, --password=STRING  Set user password\n\
+\n\
+Operation modifiers:\n\
+\n\
+  -c, --check            Check input file syntax, do not modify the database\n\
+  --cleanup              Clean up the database before starting the operation\n\
+  -v, --verbose          Produce verbose output. The more -v you give, the\n\
+                         higher verbosity level is.\n\
+  --preserve-xref        Preserve closed cross references (may be useful\n\
+                         for debugging)\n\
+  -I, --include-dir=DIR  Append DIR to m4 include path\n\
+  -m, --m4=FILE          Set full file name of the m4 executable\n\
+\n\
+Informational options:\n\
+\n\
+  --help                 Display this help message\n\
+  --version              Display program version\n");
+	exit(0);
+}
+
+
 int
 main(int argc, char **argv)
 {
 	int rc;
+	int index;
+	int cleanup_flag = 0;
 	
-	while ((rc = getopt(argc, argv, "cCd:h:I:m:P:p:u:v")) != EOF) {
+	while ((rc = getopt_long(argc, argv, "cd:h:I:m:P:p:u:v",
+				 option, &index)) != EOF) {
 		switch (rc) {
 		case 'c':
 			compile_only = 1;
 			break;
 			
-		case 'C':
-			cleanup_flag = 1;
-			break;
-			
 		case 'd':
 			sql_database = optarg;
 			break;
@@ -235,22 +325,39 @@ main(int argc, char **argv)
 			
 		case 'm':
 			m4_bin = optarg;
+			break;
+
+		case ARG_PRESERVE:
+			preserve_flag = 1;
+			break;
+			
+		case ARG_HELP:
+			usage();
+			break;
+
+		case ARG_VERSION:
+			printf("trans (%s)\n", PACKAGE_STRING);
+			exit(0);
 		}
 	}
 
 	make_m4_args (m4_bin, include_list);
 	
-	node_list = list_create();
 	sql_connect();
 
-	argc -= optind;
-	argv += optind;
+	node_list = list_create();
+
+	argc -= index;
+	argv += index;
 	if (parse(argc, argv) || error_count)
 		return 1;
 
 	if (compile_only)
 		return 0;
 	
+	if (cleanup_flag)
+		cleanup_db();
+	
 	sql_query_n(&dict_index,
 		    "SELECT ident FROM dict ORDER BY ident DESC LIMIT 1");