Rearrange sources into subdirectories

[builder.git] / source / lib / config.cpp

diff --git a/source/lib/config.cpp b/source/lib/config.cpp
new file mode 100644 (file)
index 0000000..1d3b180
--- /dev/null
+++ b/source/lib/config.cpp
@@ -0,0 +1,109 @@
+#include <msp/core/maputils.h>
+#include <msp/datafile/writer.h>
+#include <msp/fs/stat.h>
+#include <msp/fs/utils.h>
+#include <msp/io/file.h>
+#include <msp/io/print.h>
+#include <msp/time/utils.h>
+#include "builder.h"
+#include "config.h"
+#include "sourcepackage.h"
+
+using namespace std;
+using namespace Msp;
+
+const Config::Option &Config::add_option(const Feature &f)
+{
+       Option opt(f);
+       auto i = pending_options.find(opt.name);
+       if(i!=pending_options.end())
+               opt.value = i->second;
+
+       return options.insert({ opt.name, opt }).first->second;
+}
+
+bool Config::set_option(const string &opt, const string &val)
+{
+       bool result = false;
+
+       auto i = options.find(opt);
+       if(i!=options.end())
+       {
+               if(i->second.value!=val)
+               {
+                       result = true;
+                       changed = true;
+                       mtime = Time::now();
+               }
+               i->second.value = val;
+       }
+
+       return result;
+}
+
+bool Config::is_option(const string &name) const
+{
+       return options.count(name);
+}
+
+const Config::Option &Config::get_option(const string &name) const
+{
+       return get_item(options, name);
+}
+
+void Config::load()
+{
+       FS::Path fn = package.get_source_directory()/".config";
+       FS::Stat stat = FS::stat(fn);
+       if(stat)
+       {
+               package.get_builder().get_logger().log("files", "Reading %s", fn);
+               IO::BufferedFile in(fn.str());
+
+               mtime = stat.get_modify_time();
+
+               DataFile::Parser parser(in, fn.str());
+               Loader loader(*this);
+               loader.load(parser);
+       }
+}
+
+void Config::save() const
+{
+       if(!changed)
+               return;
+
+       FS::Path fn = package.get_source_directory()/".config";
+
+       package.get_builder().get_logger().log("files", "Writing %s", fn);
+       IO::BufferedFile out(fn.str(), IO::M_WRITE);
+       DataFile::Writer writer(out);
+
+       for(const auto &kvp: options)
+               writer.write((DataFile::Statement("option"), kvp.second.name, kvp.second.value));
+
+       changed = false;
+}
+
+
+Config::Option::Option(const Feature &f):
+       Feature(f),
+       value(default_value)
+{
+       name = "with_"+name;
+}
+
+
+Config::Loader::Loader(Config &c):
+       DataFile::ObjectLoader<Config>(c)
+{
+       add("option", &Loader::option);
+}
+
+void Config::Loader::option(const string &n, const string &v)
+{
+       if(obj.options.count(n))
+               obj.set_option(n, v);
+       else
+               obj.pending_options[n] = v;
+}