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[CODIFF]: Allow showing only structs or function diffs 

[acme@newtoy net-2.6.20]$ codiff --help
usage: codiff [options] <old_file> <new_file>
 where:
   -h, --help        usage options
   -s, --structs     show struct diffs
   -f, --functions   show function diffs
 without options all diffs are shown
[acme@newtoy net-2.6.20]$

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2006-11-12 12:41:44 -02:00
parent e4f5c8395c
commit 05b84f1c1c
1 changed files with 21 additions and 6 deletions
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27
codiff.c
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@ -18,9 +18,14 @@
static struct option long_options[] = {
{ "help", no_argument, NULL, 'h' },
{ "structs", no_argument, NULL, 's' },
{ "functions", no_argument, NULL, 'f' },
{ NULL, 0, NULL, 0, }
};
static int show_struct_diffs;
static int show_function_diffs;
static unsigned int total_cus_changed;
static unsigned int total_nr_functions_changed;
static unsigned long total_function_bytes_added;
@ -31,7 +36,10 @@ static void usage(void)
fprintf(stderr,
"usage: codiff [options] <old_file> <new_file>\n"
" where: \n"
" -h, --help usage options\n");
" -h, --help usage options\n"
" -s, --structs show struct diffs\n"
" -f, --functions show function diffs\n"
" without options all diffs are shown\n");
}
static void diff_function(struct cu *cu, struct cu *new_cu,
@ -157,13 +165,13 @@ static int cu_show_diffs_iterator(struct cu *cu, void *cookie)
printf("%s:\n", cu->name);
if (cu->nr_structures_changed != 0) {
if (cu->nr_structures_changed != 0 && show_struct_diffs) {
cu__for_each_class(cu, show_structure_diffs_iterator, NULL);
printf(" %u struct%s changed\n", cu->nr_structures_changed,
cu->nr_structures_changed > 1 ? "s" : "");
}
if (cu->nr_functions_changed != 0) {
if (cu->nr_functions_changed != 0 && show_function_diffs) {
total_nr_functions_changed += cu->nr_functions_changed;
cu__for_each_class(cu, show_function_diffs_iterator, NULL);
@ -204,9 +212,11 @@ int main(int argc, char *argv[])
struct cus *old_cus, *new_cus;
const char *old_filename, *new_filename;
while ((option = getopt_long(argc, argv, "h",
while ((option = getopt_long(argc, argv, "fhs",
long_options, &option_index)) >= 0)
switch (option) {
case 'f': show_function_diffs = 1; break;
case 's': show_struct_diffs = 1; break;
case 'h': usage(); return EXIT_SUCCESS;
default: usage(); return EXIT_FAILURE;
}
@ -223,6 +233,9 @@ int main(int argc, char *argv[])
return EXIT_FAILURE;
}
if (show_function_diffs == 0 && show_struct_diffs == 0)
show_function_diffs = show_struct_diffs = 1;
old_cus = cus__new(old_filename);
new_cus = cus__new(new_filename);
if (old_cus == NULL || new_cus == NULL) {
@ -245,8 +258,10 @@ int main(int argc, char *argv[])
cus__for_each_cu(old_cus, cu_diff_iterator, new_cus);
cus__for_each_cu(old_cus, cu_show_diffs_iterator, NULL);
if (total_cus_changed > 1)
print_total_function_diff(new_filename);
if (total_cus_changed > 1) {
if (show_function_diffs)
print_total_function_diff(new_filename);
}
return EXIT_SUCCESS;
}