implement tclap into cellar config (behavior remains mostly unchanged)

src/cellar.cpp.cog

@@ -68,7 +68,7 @@ int main(int argc, char* argv[]) {
         cmdparse.parse(argc, argv);
 
         dryrun = dryrunarg.getValue();
-        verbose = verbosearg.getValue();
+        verbose = dryrun || verbosearg.getValue();
 
         // BULLSHIT: trying to use str.format on this string causes bizarre compiler errors
         /*[[[cog

src/config/cli_handler.cpp

@@ -1,10 +1,13 @@
 #include <string>
 #include <vector>
 
+#include "tclap/CmdLine.h"
+
 #include "bottles.hpp"
 #include "cellar.hpp"
 #include "internal/config.hpp"
 #include "output.hpp"
+#include "version.hpp"
 
 using namespace std;
 using namespace cellar;
@@ -13,11 +16,28 @@ using namespace cellar::bottles;
 using json = nlohmann::json;
 
 void cellar::config::config_command(int argc, vector<string> argv) {
-    if (argc == 1) {
-        output::error("not enough arguments");
-        return;
-    }
-    string command = argv[1];
+    const string desc = "Change cellar configuration options";
+    const string versionstr = version::short_version();
+    TCLAP::CmdLine cmdparse(desc, ' ', versionstr, false);
+
+    TCLAP::SwitchArg globalarg("g", "global", "Use global user configuration (~/.local/share/cellar/cellar.json)");
+    cmdparse.add(globalarg);
+
+    TCLAP::UnlabeledValueArg<string> commandarg("command", "", true, "get", "command");
+    cmdparse.add(commandarg);
+
+    TCLAP::UnlabeledValueArg<string> keyarg("key", "", true, "", "key");
+    cmdparse.add(keyarg);
+
+    TCLAP::UnlabeledValueArg<string> valarg("value", "", false, "", "value");
+    cmdparse.add(valarg);
+
+    cmdparse.parse(argv);
+
+    bool global = globalarg.getValue();
+    string command = commandarg.getValue();
+    string key = keyarg.getValue();
+    string value = valarg.getValue();
 
     // BULLSHIT: switch can't be used for strings, according to gcc
     if (command == "get") {
@@ -26,9 +46,6 @@ void cellar::config::config_command(int argc, vector<string> argv) {
             return;
         }
 
-        string key = argv[2];
-        string value = active_bottle.get_config(key);
-        
         if (value != "") {
             output::statement(key + ": " + value);
         } else {