if a commodity price cannot be downloaded, report it as an error

binary.cc

@@ -10,7 +10,7 @@
 namespace ledger {
 
 static unsigned long  binary_magic_number = 0xFFEED765;
-static unsigned long  format_version      = 0x0002001b;
+static unsigned long  format_version      = 0x00020020;
 
 static account_t **   accounts;
 static account_t **   accounts_next;

main.cc

@@ -8,6 +8,7 @@ using namespace ledger;
 #include <sstream>
 #include <memory>
 #include <algorithm>
+#include <exception>
 #include <iterator>
 #include <string>
 #include <cstdlib>
@@ -349,7 +350,7 @@ int main(int argc, char * argv[], char * envp[])
   try {
     return parse_and_report(argc, argv, envp);
   }
-  catch (error& err) {
+  catch (const std::exception& err) {
     std::cerr << "Error: " << err.what() << std::endl;
     return 1;
   }

option.cc

@@ -111,8 +111,7 @@ void process_arguments(std::list<option_t>& options,
 	  goto next;
 	}
 
-      std::cerr << "Error: illegal option " << *i << std::endl;
-      std::exit(1);
+      throw option_error(std::string("illegal option ") + *i);
     } else {
       for (std::list<option_t>::iterator j = options.begin();
 	   j != options.end();
@@ -132,8 +131,7 @@ void process_arguments(std::list<option_t>& options,
 	  }
 	}
 
-      std::cerr << "Error: illegal option -- " << (*i)[1] << std::endl;
-      std::exit(1);
+      throw option_error(std::string("illegal option -- ") + (*i)[1]);
     }
 
    next:

option.h

@@ -3,6 +3,7 @@
 
 #include <list>
 #include <string>
+#include <exception>
 
 struct option_handler {
   bool handled;
@@ -19,6 +20,17 @@ struct option_t {
   option_t() : short_opt(0), wants_arg(false), handler(NULL) {}
 };
 
+class option_error : public std::exception {
+  std::string reason;
+ public:
+  option_error(const std::string& _reason) throw() : reason(_reason) {}
+  virtual ~option_error() throw() {}
+
+  virtual const char* what() const throw() {
+    return reason.c_str();
+  }
+};
+
 void add_option_handler(std::list<option_t>& options, const std::string& label,
 			const std::string& opt_chars, option_handler& option);
 bool process_option(std::list<option_t>& options,

quotes.cc

@@ -1,5 +1,6 @@
 #include "quotes.h"
 #include "datetime.h"
+#include "error.h"
 #include "debug.h"
 
 #include <fstream>
@@ -32,10 +33,6 @@ void quotes_by_script::operator()(commodity_t&      commodity,
 
   DEBUG_PRINT_("downloading quote for symbol " << commodity.symbol);
 
-  // Only consult the Internet once for any commodity
-  commodity.last_lookup = now;
-  cache_dirty = true;
-
   char buf[256];
   buf[0] = '\0';
 
@@ -45,7 +42,8 @@ void quotes_by_script::operator()(commodity_t&      commodity,
 			 commodity.symbol).c_str(), "r")) {
     if (feof(fp) || ! fgets(buf, 255, fp))
       success = false;
-    fclose(fp);
+    if (pclose(fp) != 0)
+      success = false;
   }
 
   if (success && buf[0]) {
@@ -57,6 +55,9 @@ void quotes_by_script::operator()(commodity_t&      commodity,
     price.parse(buf);
     commodity.add_price(now, price);
 
+    commodity.last_lookup = now;
+    cache_dirty = true;
+
     if (price && ! price_db.empty()) {
       char buf[128];
       strftime(buf, 127, "%Y/%m/%d %H:%M:%S", localtime(&now));
@@ -64,6 +65,10 @@ void quotes_by_script::operator()(commodity_t&      commodity,
       database << "P " << buf << " " << commodity.symbol
 	       << " " << price << endl;
     }
+  } else {
+    throw error(std::string("Failed to download price for '") +
+		commodity.symbol + "' (command: \"getquote " +
+		commodity.symbol + "\")");
   }
 }
 

scripts/getquote

@@ -1,16 +1,14 @@
 #!/usr/bin/perl
 
-exit 0 if $ARGV[0] eq "\$";
-
 use Finance::Quote;
 
 $q = Finance::Quote->new;
-
 $q->timeout(60);
 $q->require_labels(qw/price/);
 
 %quotes = $q->fetch("nasdaq", $ARGV[0]);
-
 if ($quotes{$ARGV[0], "price"}) {
     print "\$", $quotes{$ARGV[0], "price"}, "\n";
+} else {
+    exit 1;
 }