Re: [brlcad-devel] [brlcad-commits] SF.net SVN: brlcad:[58373] brlcad/trunk/src/util

[Christopher S. M. <br...@ma...>]

Tom,

Just info, note that the "garbage_collect" command in mged is particularly relevant to what you started with.  It's implemented as a tcl script, basically calling the keep command: src/tclscripts/mged/garbage_collect.tcl 

Cheers!
Sean


On Oct 31, 2013, at 08:51 AM, tbr...@us... wrote:

Revision: 58373
http://sourceforge.net/p/brlcad/code/58373
Author: tbrowder2
Date: 2013-10-31 12:51:01 +0000 (Thu, 31 Oct 2013)
Log Message:
-----------
add beginnings of a database admin program

Modified Paths:
--------------
brlcad/trunk/src/util/CMakeLists.txt

Added Paths:
-----------
brlcad/trunk/src/util/admin-db.cpp

Modified: brlcad/trunk/src/util/CMakeLists.txt
===================================================================
--- brlcad/trunk/src/util/CMakeLists.txt 2013-10-31 12:01:27 UTC (rev 58372)
+++ brlcad/trunk/src/util/CMakeLists.txt 2013-10-31 12:51:01 UTC (rev 58373)
@@ -96,6 +96,9 @@
# ignore it for now
CMAKEFILES(test_bu_arg_parse.c)

+# another test for attributes
+BRLCAD_ADDEXEC(admin-db "admin-db.cpp;bu_arg_parse.cpp" libbu NO_INSTALL)
+
# tmp header to stand-in for bu.h (ignore it)
CMAKEFILES(bu_arg_parse.h)
# permanent private header for TCLAP customizations (ignore it)

Added: brlcad/trunk/src/util/admin-db.cpp
===================================================================
--- brlcad/trunk/src/util/admin-db.cpp (rev 0)
+++ brlcad/trunk/src/util/admin-db.cpp 2013-10-31 12:51:01 UTC (rev 58373)
@@ -0,0 +1,184 @@
+#include "common.h"
+
+#include <stdlib.h>
+#include <sys/stat.h>
+#include "bio.h"
+
+#include "bu_arg_parse.h" /* includes bu.h */
+
+static const char usage[] = "Example: admin-db [...options] db.g [db2.g]\n";
+
+/* purpose: manage various aspects of a BRL-CAD database
+ *
+ * description: Enables the user to perform various tasks on a BRL-CAD
+ * database (DB) file including reporting statistics and shortening
+ * the DB file by removing unused free space. The original DB file
+ * is opened read-only and is not modified in any way.
+ *
+ * The only option at the moment is to compress the input DB by removing
+ * unused free space which accumulates during the construction of a BRL-CAD model.
+ * The shortened copy of the input DB is written to a new file which may be named
+ * by the user, otherwise the new file is name "<input file name>.compressed".
+ */
+
+
+int
+main(int argc, char** argv)
+{
+ FILE *in = NULL;
+ FILE *out = NULL;
+ struct stat sb;
+ const char DBSUF[] = ".compressed";
+
+ /* vars expected from cmd line parsing */
+ int arg_err = 0;
+ int has_force = 0;
+ int has_help = 0;
+ int has_compress = 0;
+ char db_fname[BU_ARG_PARSE_BUFSZ] = {0};
+ char db2_fname[BU_ARG_PARSE_BUFSZ] = {0};
+
+ /* FIXME: this '-?' arg doesn't work correctly due to some TCLAPisms */
+ static bu_arg_switch_t h_arg;
+ /* define a force option to allow user to shoot himself in the foot */
+ static bu_arg_switch_t f_arg;
+ /* define a compress option */
+ static bu_arg_switch_t c_arg;
+
+ /* input file names */
+ static bu_arg_unlabeled_value_t db_arg;
+ /* the output file name (optional) */
+ static bu_arg_unlabeled_value_t db2_arg;
+
+ /* place the arg pointers in an array (note the array is of
+ * type void* to hold the heterogeneous arg type structs)
+ */
+ static void *args[] = {
+ &h_arg, &f_arg,
+ &db_arg, &db2_arg,
+ NULL
+ };
+
+ BU_ARG_SWITCH_INIT(
+ h_arg,
+ "?",
+ "short-help",
+ "Same as '-h' or '--help'"
+ );
+
+ BU_ARG_SWITCH_INIT(
+ f_arg,
+ "f",
+ "force",
+ "Allow overwriting existing files."
+ );
+
+ BU_ARG_SWITCH_INIT(
+ c_arg,
+ "c",
+ "compress",
+ "Create a copy with no free space."
+ );
+
+ /* input file name */
+ BU_ARG_UNLABELED_VALUE_INIT(
+ db_arg,
+ "",
+ "DB_infile",
+ "DB input file name",
+ BU_ARG_REQUIRED,
+ BU_ARG_STRING,
+ ""
+ );
+
+ /* the output file name (optional) */
+ BU_ARG_UNLABELED_VALUE_INIT(
+ db2_arg,
+ "",
+ "DB_outfile",
+ "DB output file name",
+ BU_ARG_OPTIONAL,
+ BU_ARG_STRING,
+ ""
+ );
+
+ /* parse the args */
+ arg_err = bu_arg_parse(args, argc, argv);
+
+ if (arg_err == BU_ARG_PARSE_ERR) {
+ /* the TCLAP exception handler has fired with its own message
+ * so need no message here
+ */
+ bu_exit(EXIT_SUCCESS, NULL);
+ }
+
+ /* Get the value parsed by each arg. */
+ has_force = bu_arg_get_bool(&f_arg);
+ has_help = bu_arg_get_bool(&h_arg);
+ has_compress = bu_arg_get_bool(&c_arg);
+ bu_arg_get_string(&db_arg, db_fname);
+ bu_arg_get_string(&db2_arg, db2_fname);
+
+ /* take appropriate action... */
+
+ /* note this exit is SUCCESS because it is expected
+ * behavior--important for good auto-man-page handling
+ */
+ if (has_help) {
+ bu_exit(EXIT_SUCCESS, usage);
+ }
+
+ if (has_compress) {
+ if (!db2_fname[0]) {
+ bu_strlcpy(db2_fname, db_fname, BU_ARG_PARSE_BUFSZ);
+ bu_strlcat(db2_fname, DBSUF, BU_ARG_PARSE_BUFSZ);
+ }
+ }
+
+ /* open the db file read-only */
+ /* TCLAP doesn't check for existing files (FIXME: add to TCLAP) */
+ if (!stat(db_fname, &sb)) {
+ bu_exit(EXIT_FAILURE, "non-existent input file\n");
+ }
+ in = fopen(db_fname, "r");
+ if (!in) {
+ perror(db_fname);
+ bu_exit(EXIT_FAILURE, "ERROR: input file open failure\n");
+ }
+ if (fstat(fileno(in), &sb)) {
+ perror(db_fname);
+ fclose(in);
+ bu_exit(EXIT_FAILURE, "ERROR: input file stat failure\n");
+ }
+
+ if (has_compress) {
+ /* TCLAP doesn't check for confusion in file names */
+ if (BU_STR_EQUAL(db_fname, db2_fname)) {
+ bu_exit(EXIT_FAILURE, "overwriting an input file\n");
+ }
+ /* check for existing file */
+ if (!stat(db2_fname, &sb)) {
+ if (has_force) {
+ printf("WARNING: overwriting an existing file...\n");
+ bu_file_delete(db2_fname);
+ }
+ else {
+ bu_exit(EXIT_FAILURE, "overwriting an existing file (use the '-f' option to continue)\n");
+ }
+ }
+ out = fopen(db2_fname, "w");
+ if (!out) {
+ perror(db_fname);
+ bu_exit(EXIT_FAILURE, "ERROR: output file open failure\n");
+ }
+ if (fstat(fileno(out), &sb)) {
+ perror(db2_fname);
+ fclose(out);
+ bu_exit(EXIT_FAILURE, "ERROR: output file stat failure\n");
+ }
+ }
+
+
+ return 0;
+
+}


Property changes on: brlcad/trunk/src/util/admin-db.cpp
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