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df6c92e506
hdf5/tools/h5diff/h5diff_common.c
Allen Byrne df6c92e506 [svn-r22004] Reduced warnings and fixed conflicts resulting from including h5tools.h 
Tested: local linux
2012-02-28 13:26:34 -05:00

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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the files COPYING and Copyright.html. COPYING can be found at the root *
* of the source code distribution tree; Copyright.html can be found at the *
* root level of an installed copy of the electronic HDF5 document set and *
* is linked from the top-level documents page. It can also be found at *
* http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include <stdlib.h>
#include <string.h>
#include "h5diff.h"
#include "h5diff_common.h"
#include "h5tools.h"
#include "h5tools_utils.h"
static int check_n_input( const char* );
static int check_p_input( const char* );
static int check_d_input( const char* );
/*
* Command-line options: The user can specify short or long-named
* parameters.
*/
static const char *s_opts = "hVrv:qn:d:p:Nc";
static struct long_options l_opts[] = {
{ "help", no_arg, 'h' },
{ "version", no_arg, 'V' },
{ "report", no_arg, 'r' },
{ "verbose", optional_arg, 'v' },
{ "quiet", no_arg, 'q' },
{ "count", require_arg, 'n' },
{ "delta", require_arg, 'd' },
{ "relative", require_arg, 'p' },
{ "nan", no_arg, 'N' },
{ "compare", no_arg, 'c' },
{ "use-system-epsilon", no_arg, 'e' },
{ "follow-symlinks", no_arg, 'l' },
{ "no-dangling-links", no_arg, 'x' },
{ "exclude-path", require_arg, 'E' },
{ NULL, 0, '\0' }
};
/*-------------------------------------------------------------------------
* Function: check_options
*
* Purpose: parse command line input
*
*-------------------------------------------------------------------------
*/
static void check_options(diff_opt_t* options)
{
/*--------------------------------------------------------------
* check for mutually exclusive options
*--------------------------------------------------------------*/
/* check between -d , -p, --use-system-epsilon.
* These options are mutually exclusive.
*/
if ((options->d + options->p + options->use_system_epsilon) > 1)
{
printf("%s error: -d, -p and --use-system-epsilon options are mutually-exclusive;\n", PROGRAMNAME);
printf("use no more than one.\n");
printf("Try '-h' or '--help' option for more information or see the %s entry in the 'HDF5 Reference Manual'.\n", PROGRAMNAME);
h5diff_exit(EXIT_FAILURE);
}
}
/*-------------------------------------------------------------------------
* Function: parse_command_line
*
* Purpose: parse command line input
*
*-------------------------------------------------------------------------
*/
void parse_command_line(int argc,
const char* argv[],
const char** fname1,
const char** fname2,
const char** objname1,
const char** objname2,
diff_opt_t* options)
{
int i;
int opt;
struct exclude_path_list *exclude_head, *exclude_prev, *exclude_node;
/* process the command-line */
memset(options, 0, sizeof (diff_opt_t));
/* assume equal contents initially */
options->contents = 1;
/* NaNs are handled by default */
options->do_nans = 1;
/* init for exclude-path option */
exclude_head = NULL;
/* parse command line options */
while ((opt = get_option(argc, argv, s_opts, l_opts)) != EOF)
{
switch ((char)opt)
{
default:
usage();
h5diff_exit(EXIT_FAILURE);
case 'h':
usage();
h5diff_exit(EXIT_SUCCESS);
case 'V':
print_version(h5tools_getprogname());
h5diff_exit(EXIT_SUCCESS);
case 'v':
options->m_verbose = 1;
/* This for loop is for handling style like
* -v, -v1, --verbose, --verbose=1.
*/
for (i = 1; i < argc; i++)
{
/*
* short opt
*/
if (!strcmp (argv[i], "-v")) /* no arg */
{
opt_ind--;
options->m_verbose_level = 0;
break;
}
else if (!strncmp (argv[i], "-v", 2))
{
options->m_verbose_level = atoi(&argv[i][2]);
break;
}
/*
* long opt
*/
if (!strcmp (argv[i], "--verbose")) /* no arg */
{
options->m_verbose_level = 0;
break;
}
else if ( !strncmp (argv[i], "--verbose", 9) && argv[i][9]=='=')
{
options->m_verbose_level = atoi(&argv[i][10]);
break;
}
}
break;
case 'q':
/* use quiet mode; supress the message "0 differences found" */
options->m_quiet = 1;
break;
case 'r':
options->m_report = 1;
break;
case 'l':
options->follow_links = 1;
break;
case 'x':
options->no_dangle_links = 1;
break;
case 'E':
options->exclude_path = 1;
/* create linked list of excluding objects */
if( (exclude_node = (struct exclude_path_list*) malloc(sizeof(struct exclude_path_list))) == NULL)
{
printf("Error: lack of memory!\n");
h5diff_exit(EXIT_FAILURE);
}
/* init */
exclude_node->obj_path = (char*)opt_arg;
exclude_node->obj_type = H5TRAV_TYPE_UNKNOWN;
exclude_prev = exclude_head;
if (NULL == exclude_head)
{
exclude_head = exclude_node;
exclude_head->next = NULL;
}
else
{
while(NULL != exclude_prev->next)
exclude_prev=exclude_prev->next;
exclude_node->next = NULL;
exclude_prev->next = exclude_node;
}
break;
case 'd':
options->d=1;
if ( check_d_input( opt_arg )==-1)
{
printf("<-d %s> is not a valid option\n", opt_arg );
usage();
h5diff_exit(EXIT_FAILURE);
}
options->delta = atof( opt_arg );
/* -d 0 is the same as default */
if (options->delta == 0)
options->d=0;
break;
case 'p':
options->p=1;
if ( check_p_input( opt_arg )==-1)
{
printf("<-p %s> is not a valid option\n", opt_arg );
usage();
h5diff_exit(EXIT_FAILURE);
}
options->percent = atof( opt_arg );
/* -p 0 is the same as default */
if (options->percent == 0)
options->p = 0;
break;
case 'n':
options->n=1;
if ( check_n_input( opt_arg )==-1)
{
printf("<-n %s> is not a valid option\n", opt_arg );
usage();
h5diff_exit(EXIT_FAILURE);
}
options->count = atol( opt_arg );
break;
case 'N':
options->do_nans = 0;
break;
case 'c':
options->m_list_not_cmp = 1;
break;
case 'e':
options->use_system_epsilon = 1;
break;
}
}
/* check options */
check_options(options);
/* if exclude-path option is used, keep the exclude path list */
if (options->exclude_path)
options->exclude = exclude_head;
/* check for file names to be processed */
if (argc <= opt_ind || argv[ opt_ind + 1 ] == NULL)
{
error_msg("missing file names\n");
usage();
h5diff_exit(EXIT_FAILURE);
}
*fname1 = argv[ opt_ind ];
*fname2 = argv[ opt_ind + 1 ];
*objname1 = argv[ opt_ind + 2 ];
if ( *objname1 == NULL )
{
*objname2 = NULL;
return;
}
if ( argv[ opt_ind + 3 ] != NULL)
{
*objname2 = argv[ opt_ind + 3 ];
}
else
{
*objname2 = *objname1;
}
}
/*-------------------------------------------------------------------------
* Function: print_info
*
* Purpose: print several information messages after h5diff call
*
*-------------------------------------------------------------------------
*/
void print_info(diff_opt_t* options)
{
if (options->m_quiet || options->err_stat )
return;
if (options->cmn_objs==0)
{
printf("No common objects found. Files are not comparable.\n");
if (!options->m_verbose)
printf("Use -v for a list of objects.\n");
}
if (options->not_cmp==1)
{
if ( options->m_list_not_cmp == 0 )
{
printf("--------------------------------\n");
printf("Some objects are not comparable\n");
printf("--------------------------------\n");
if (options->m_verbose)
printf("Use -c for a list of objects without details of differences.\n");
else
printf("Use -c for a list of objects.\n");
}
}
}
/*-------------------------------------------------------------------------
* Function: check_n_input
*
* Purpose: check for valid input
*
* Return: 1 for ok, -1 for fail
*
* Programmer: Pedro Vicente, pvn@ncsa.uiuc.edu
*
* Date: May 9, 2003
*
* Comments:
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static int
check_n_input( const char *str )
{
unsigned i;
char c;
for ( i = 0; i < strlen(str); i++)
{
c = str[i];
if ( i==0 )
{
if ( c < 49 || c > 57 ) /* ascii values between 1 and 9 */
return -1;
}
else
if ( c < 48 || c > 57 ) /* 0 also */
return -1;
}
return 1;
}
/*-------------------------------------------------------------------------
* Function: check_p_input
*
* Purpose: check for a valid p option input
*
* Return: 1 for ok, -1 for fail
*
* Date: May 9, 2003
*
* Comments:
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static int
check_p_input( const char *str )
{
double x;
/*
the atof return value on a hexadecimal input is different
on some systems; we do a character check for this
*/
if (strlen(str)>2 && str[0]=='0' && str[1]=='x')
return -1;
x=atof(str);
if (x<0)
return -1;
return 1;
}
/*-------------------------------------------------------------------------
* Function: check_d_input
*
* Purpose: check for a valid d option input
*
* Return: 1 for ok, -1 for fail
*
* Date: November 11, 2007
*
* Comments:
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
static int
check_d_input( const char *str )
{
double x;
/*
the atof return value on a hexadecimal input is different
on some systems; we do a character check for this
*/
if (strlen(str)>2 && str[0]=='0' && str[1]=='x')
return -1;
x=atof(str);
if (x <0)
return -1;
return 1;
}
/*-------------------------------------------------------------------------
* Function: usage
*
* Purpose: print a usage message
*
* Return: void
*
*-------------------------------------------------------------------------
*/
void usage(void)
{
printf("usage: h5diff [OPTIONS] file1 file2 [obj1[ obj2]] \n");
printf(" file1 File name of the first HDF5 file\n");
printf(" file2 File name of the second HDF5 file\n");
printf(" [obj1] Name of an HDF5 object, in absolute path\n");
printf(" [obj2] Name of an HDF5 object, in absolute path\n");
printf("\n");
printf(" OPTIONS\n");
printf(" -h, --help\n");
printf(" Print a usage message and exit.\n");
printf(" -V, --version\n");
printf(" Print version number and exit.\n");
printf(" -r, --report\n");
printf(" Report mode. Print differences.\n");
printf(" -v --verbose\n");
printf(" Verbose mode. Print differences information and list of objects.\n");
printf(" -vN --verbose=N\n");
printf(" Verbose mode with level. Print differences and list of objects.\n");
printf(" Level of detail depends on value of N:\n");
printf(" 0 : Identical to '-v' or '--verbose'.\n");
printf(" 1 : All level 0 information plus one-line attribute\n");
printf(" status summary.\n");
printf(" 2 : All level 1 information plus extended attribute\n");
printf(" status report.\n");
printf(" -q, --quiet\n");
printf(" Quiet mode. Do not produce output.\n");
printf(" --follow-symlinks\n");
printf(" Follow symbolic links (soft links and external links and compare the)\n");
printf(" links' target objects.\n");
printf(" If symbolic link(s) with the same name exist in the files being\n");
printf(" compared, then determine whether the target of each link is an existing\n");
printf(" object (dataset, group, or named datatype) or the link is a dangling\n");
printf(" link (a soft or external link pointing to a target object that does\n");
printf(" not yet exist).\n");
printf(" - If both symbolic links are dangling links, they are treated as being\n");
printf(" the same; by default, h5diff returns an exit code of 0.\n");
printf(" If, however, --no-dangling-links is used with --follow-symlinks,\n");
printf(" this situation is treated as an error and h5diff returns an\n");
printf(" exit code of 2.\n");
printf(" - If only one of the two links is a dangling link,they are treated as\n");
printf(" being different and h5diff returns an exit code of 1.\n");
printf(" If, however, --no-dangling-links is used with --follow-symlinks,\n");
printf(" this situation is treated as an error and h5diff returns an\n");
printf(" exit code of 2.\n");
printf(" - If both symbolic links point to existing objects, h5diff compares the\n");
printf(" two objects.\n");
printf(" If any symbolic link specified in the call to h5diff does not exist,\n");
printf(" h5diff treats it as an error and returns an exit code of 2.\n");
printf(" --no-dangling-links\n");
printf(" Must be used with --follow-symlinks option; otherwise, h5diff shows\n");
printf(" error message and returns an exit code of 2.\n");
printf(" Check for any symbolic links (soft links or external links) that do not\n");
printf(" resolve to an existing object (dataset, group, or named datatype).\n");
printf(" If any dangling link is found, this situation is treated as an error\n");
printf(" and h5diff returns an exit code of 2.\n");
printf(" -c, --compare\n");
printf(" List objects that are not comparable\n");
printf(" -N, --nan\n");
printf(" Avoid NaNs detection\n");
printf(" -n C, --count=C\n");
printf(" Print differences up to C. C must be a positive integer.\n");
printf(" -d D, --delta=D\n");
printf(" Print difference if (|a-b| > D). D must be a positive number.\n");
printf(" Can not use with '-p' or '--use-system-epsilon'.\n");
printf(" -p R, --relative=R\n");
printf(" Print difference if (|(a-b)/b| > R). R must be a positive number.\n");
printf(" Can not use with '-d' or '--use-system-epsilon'.\n");
printf(" --use-system-epsilon\n");
printf(" Print difference if (|a-b| > EPSILON), EPSILON is system defined value.\n");
printf(" If the system epsilon is not defined,one of the following predefined\n");
printf(" values will be used:\n");
printf(" FLT_EPSILON = 1.19209E-07 for floating-point type\n");
printf(" DBL_EPSILON = 2.22045E-16 for double precision type\n");
printf(" Can not use with '-p' or '-d'.\n");
printf(" --exclude-path \"path\" \n");
printf(" Exclude the specified path to an object when comparing files or groups.\n");
printf(" If a group is excluded, all member objects will also be excluded.\n");
printf(" The specified path is excluded wherever it occurs.\n");
printf(" This flexibility enables the same option to exclude either objects that\n");
printf(" exist only in one file or common objects that are known to differ.\n");
printf("\n");
printf(" When comparing files, \"path\" is the absolute path to the excluded;\n");
printf(" object; when comparing groups, \"path\" is similar to the relative\n");
printf(" path from the group to the excluded object. This \"path\" can be\n");
printf(" taken from the first section of the output of the --verbose option.\n");
printf(" For example, if you are comparing the group /groupA in two files and\n");
printf(" you want to exclude /groupA/groupB/groupC in both files, the exclude\n");
printf(" option would read as follows:\n");
printf(" --exclude-path \"/groupB/groupC\"\n");
printf("\n");
printf(" If there are multiple paths to an object, only the specified path(s)\n");
printf(" will be excluded; the comparison will include any path not explicitly\n");
printf(" excluded.\n");
printf(" This option can be used repeatedly to exclude multiple paths.\n");
printf("\n");
printf(" Modes of output:\n");
printf(" Default mode: print the number of differences found and where they occured\n");
printf(" -r Report mode: print the above plus the differences\n");
printf(" -v Verbose mode: print the above plus a list of objects and warnings\n");
printf(" -q Quiet mode: do not print output\n");
printf("\n");
printf(" File comparison:\n");
printf(" If no objects [obj1[ obj2]] are specified, the h5diff comparison proceeds as\n");
printf(" a comparison of the two files' root groups. That is, h5diff first compares\n");
printf(" the names of root group members, generates a report of root group objects\n");
printf(" that appear in only one file or in both files, and recursively compares\n");
printf(" common objects.\n");
printf("\n");
printf(" Object comparison:\n");
printf(" 1) Groups \n");
printf(" First compares the names of member objects (relative path, from the\n");
printf(" specified group) and generates a report of objects that appear in only\n");
printf(" one group or in both groups. Common objects are then compared recursively.\n");
printf(" 2) Datasets \n");
printf(" Array rank and dimensions, datatypes, and data values are compared.\n");
printf(" 3) Datatypes \n");
printf(" The comparison is based on the return value of H5Tequal.\n");
printf(" 4) Symbolic links \n");
printf(" The paths to the target objects are compared.\n");
printf(" (The option --follow-symlinks overrides the default behavior when\n");
printf(" symbolic links are compared.).\n");
printf("\n");
printf(" Exit code:\n");
printf(" 0 if no differences, 1 if differences found, 2 if error\n");
printf("\n");
printf(" Examples of use:\n");
printf(" 1) h5diff file1 file2 /g1/dset1 /g1/dset2\n");
printf(" Compares object '/g1/dset1' in file1 with '/g1/dset2' in file2\n");
printf("\n");
printf(" 2) h5diff file1 file2 /g1/dset1\n");
printf(" Compares object '/g1/dset1' in both files\n");
printf("\n");
printf(" 3) h5diff file1 file2\n");
printf(" Compares all objects in both files\n");
printf("\n");
printf(" Notes:\n");
printf(" file1 and file2 can be the same file.\n");
printf(" Use h5diff file1 file1 /g1/dset1 /g1/dset2 to compare\n");
printf(" '/g1/dset1' and '/g1/dset2' in the same file\n");
printf("\n");
}
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