[v0.7] Add help subcommand

1 files changed, 36 insertions, 25 deletions

diff --git a/src/actionparser.c b/src/actionparser.c
index c8c70db..aee9732 100644
--- a/src/actionparser.c
+++ b/src/actionparser.c
@@ -148,7 +148,15 @@ int parse_SEARCH(UserOpt *opt) {
 }
 
 int parse_HELP(UserOpt *opt) {
-  return -1;
+  /* Help expects a maximum of 1 argument */
+  if (optNum <= pos || optNum > pos + 1) {
+    opt->err = PERR_HELP_WRONG;
+    return -1;
+  }
+
+  int arg_num = optNum - pos;
+  fill_args_list(arg_num, opt);
+  return 0;
 }
 
 
@@ -164,26 +172,34 @@ int parse_vals(UserOpt *opt) {
   }
 }
 
-void determine_action(UserOpt *opt) {
-  /* get action */
-  if (next_token() == -1) {
-    opt->action = CK_WRONG_ACTION;
-    return;
-  }
-
+CkAction parser_get_action(const char *name, char *actionName) {
   int i;
 #define X(ACTION)                                                       \
   for (i = 1; i < atoi(str##ACTION[0]) + 1; i++) {                      \
-    if (strcmp(token, str##ACTION[i]) == 0) {                           \
-      opt->action = CKA_##ACTION;                                       \
-      LOG("Action to perform: %s", str##ACTION[1]);                     \
-      return;                                                           \
+    if (strcmp(name, str##ACTION[i]) == 0) {                            \
+      if (actionName) {                                                 \
+        strcpy(actionName, str##ACTION[1]);                             \
+      }                                                                 \
+      return CKA_##ACTION;                                              \
     }                                                                   \
   }
   CK_ACTIONS;
 #undef X
+  return CK_WRONG_ACTION;
+}
+
+void determine_action(UserOpt *opt) {
+  /* get action */
+  if (next_token() == -1) {
+    opt->action = CK_WRONG_ACTION;
+    return;
+  }
 
-  opt->action = CK_WRONG_ACTION;
+  char actionName[STR_S];
+  opt->action = parser_get_action(token, actionName);
+  if (opt->action != CK_WRONG_ACTION) {
+    LOG("Action to perform: %s", actionName);
+  }
   return;
 }
 
@@ -284,7 +300,7 @@ void verbose() {
 }
 
 void get_possible_action_strings(char *dest, CkAction ckAction) {
-  char buf[STR_S];
+  char buf[STR_M];
   switch (ckAction) {
 #define X(ACTION)                                         \
     case CKA_##ACTION:                                    \
@@ -308,15 +324,15 @@ void get_possible_action_strings(char *dest, CkAction ckAction) {
 
 void print_parser_error(UserOpt *opt) {
   char errStr[STR_L];
-  char names[STR_S];
+  char names[STR_M];
   get_possible_action_strings(names, opt->action);
 
   switch (opt->err) {
   case PERR_NOERR:
     return;
   case PERR_UNKONW_ACTION:
-    sprintf(errStr, "Unknown action: %s", token);
-    break;
+    ERR("Unknown action: %s", token);
+    return;
   case PERR_INIT_WRONG:
     sprintf(errStr, "Initialize database\nUsage: %s version_control_dir secret_dir", names);
     break;
@@ -336,14 +352,13 @@ void print_parser_error(UserOpt *opt) {
     sprintf(errStr, "Search through the configs with grep\nUsage: %s search-term", names);
     break;
   case PERR_HELP_WRONG:
-    sprintf(errStr, "Usage: ........");
-    break;
+    sprintf(errStr, "Get help for a ck action.\nUsage: %s action", names);
   }
   HELP("%s", errStr);
 }
 
 void print_parser_help() {
-  char names[STR_S];
+  char names[STR_M];
   ckhelp("ck - the config keeper");
   ckhelp("Usage:");
   get_possible_action_strings(names, CKA_INIT);
@@ -359,7 +374,7 @@ void print_parser_help() {
   get_possible_action_strings(names, CKA_SEARCH);
   ckhelp("Search: \t%s", names);
   get_possible_action_strings(names, CKA_HELP);
-  ckhelp("Print this: \t%s", names);
+  ckhelp("Actions Help: \t%s", names);
   report_help();
 }
 
@@ -396,10 +411,6 @@ int parse_action(int argc, char* argv[], UserOpt *opt) {
     print_parser_error(opt);
     return -1;
   }
-  if (opt->action == CKA_HELP) {
-    print_parser_help();
-    return -1;
-  }
 
   // parse values
   if (parse_vals(opt)) {