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Implement g_option_context_get_help (fake GLib)

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This fixes the crashing issues, but the command-line tools are still
useless.
This commit is contained in:
Evan Miller 2020-08-03 19:53:58 -04:00
parent cb7b694d4b
commit fa01a6fe27
2 changed files with 39 additions and 3 deletions
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5
include/mdbfakeglib.h
View File

@ -16,6 +16,7 @@ typedef unsigned int guint;
typedef void * gpointer;
typedef const void * gconstpointer;
typedef uint8_t guint8;
typedef guint32 GQuark;
typedef guint (*GHashFunc)(gconstpointer);
typedef int (*GCompareFunc)(gconstpointer, gconstpointer);
@ -41,7 +42,9 @@ typedef struct GHashTable {
} GHashTable;
typedef struct GError {
const char *message;
GQuark domain;
gint code;
gchar *message;
} GError;
typedef enum GOptionArg {

37
src/libmdb/fakeglib.c
View File

@ -242,8 +242,39 @@ void g_option_context_add_main_entries (GOptionContext *context,
gchar *g_option_context_get_help (GOptionContext *context,
gboolean main_help, void *group) {
/* TODO */
return NULL;
#if defined(__APPLE__) || defined(__FreeBSD__)
const char * appname = getprogname();
#elif defined(_GNU_SOURCE)
const char * appname = program_invocation_name;
#else
const char * appname = "mdb-util";
#endif
char *help = malloc(4096);
char *end = help + 4096;
char *p = help;
p += snprintf(p, end - p,
"Usage:\n %s [OPTION\xE2\x80\xA6] %s\n\n", appname, context->desc);
p += snprintf(p, end - p,
"Help Options:\n -h, --%-20s%s\n\n", "help", "Show help options");
p += snprintf(p, end - p,
"Application Options:\n");
int i=0;
for (i=0; context->entries[i].long_name; i++) {
p += snprintf(p, end - p, " -%c, --", context->entries[i].short_name);
if (context->entries[i].arg_description) {
char *long_name = g_strconcat(
context->entries[i].long_name, "=",
context->entries[i].arg_description, NULL);
p += snprintf(p, end - p, "%-20s", long_name);
free(long_name);
} else {
p += snprintf(p, end - p, "%-20s", context->entries[i].long_name);
}
p += snprintf(p, end - p, "%s\n", context->entries[i].description);
}
p += snprintf(p, end - p, "\n");
return help;
}
GOptionContext *g_option_context_new(const char *description) {
@ -254,6 +285,8 @@ GOptionContext *g_option_context_new(const char *description) {
gboolean g_option_context_parse(GOptionContext *context,
gint *argc, gchar ***argv, GError **error) {
*error = malloc(sizeof(GError));
(*error)->message = "Not implemented";
/* TODO */
return FALSE;
}