* gnu/packages/patches/crawl-upgrade-saves.patch: New file. * gnu/local.mk (dist_patch_DATA): Add patch. * gnu/packages/games.scm (crawl)[source]: Apply patch. Signed-off-by: Arun Isaac <arunisaac@systemreboot.net>
		
			
				
	
	
		
			83 lines
		
	
	
	
		
			2.5 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
			
		
		
	
	
			83 lines
		
	
	
	
		
			2.5 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
Store the crawl version in the textdatabases in SAVEDIR and
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upgrade the databases when the crawl version changes.
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By default crawl checks for a mtime difference on files in DATADIR to see if an
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upgrade is required, but guix nulls all file dates,
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and crawl would never upgrade saves.
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--- a/source/database.cc	2016-05-31 09:56:08.000000000 +0200
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+++ a/source/database.cc	2017-06-05 03:00:19.270632107 +0200
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@@ -25,6 +25,7 @@
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 #include "syscalls.h"
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 #include "threads.h"
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 #include "unicode.h"
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+#include "version.h"
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 // TextDB handles dependency checking the db vs text files, creating the
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 // db, loading, and destroying the DB.
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@@ -55,6 +56,7 @@
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     vector<string> _input_files;
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     DBM* _db;
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     string timestamp;
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+    string version;
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     TextDB *_parent;
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     const char* lang() { return _parent ? Options.lang_name : 0; }
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 public:
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@@ -165,7 +167,7 @@
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 TextDB::TextDB(const char* db_name, const char* dir, ...)
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     : _db_name(db_name), _directory(dir),
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-      _db(nullptr), timestamp(""), _parent(0), translation(0)
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+      _db(nullptr), timestamp(""), version(""),  _parent(0), translation(0)
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 {
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     va_list args;
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     va_start(args, dir);
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@@ -187,7 +189,7 @@
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     : _db_name(parent->_db_name),
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       _directory(parent->_directory + Options.lang_name + "/"),
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       _input_files(parent->_input_files), // FIXME: pointless copy
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-      _db(nullptr), timestamp(""), _parent(parent), translation(nullptr)
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+      _db(nullptr), timestamp(""), version(""), _parent(parent), translation(nullptr)
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 {
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 }
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@@ -202,6 +204,9 @@
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         return false;
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     timestamp = _query_database(*this, "TIMESTAMP", false, false, true);
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+    version = _query_database(*this, "VERSION", false, false, true);
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+    if (version.empty())
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+        return false;
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     if (timestamp.empty())
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         return false;
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@@ -245,6 +250,9 @@
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     string ts;
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     bool no_files = true;
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+    if (string(Version::Long) != version)
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+        return true;
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+
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     for (const string &file : _input_files)
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     {
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         string full_input_path = _directory + file;
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@@ -261,7 +269,7 @@
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         ts += buf;
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     }
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-    if (no_files && timestamp.empty())
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+    if (no_files && timestamp.empty() && version.empty())
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     {
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         // No point in empty databases, although for simplicity keep ones
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         // for disappeared translations for now.
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@@ -321,7 +329,10 @@
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             _store_text_db(full_input_path, _db);
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         }
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     }
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+
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+    string current_version = string(Version::Long);
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     _add_entry(_db, "TIMESTAMP", ts);
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+    _add_entry(_db, "VERSION", current_version);
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     dbm_close(_db);
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     _db = 0;
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