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authorMichael Vogt <michael.vogt@ubuntu.com>2009-12-02 17:24:56 +0100
committerMichael Vogt <michael.vogt@ubuntu.com>2009-12-02 17:24:56 +0100
commitf3ceaca7a648f7d93fa88106910151e69f498801 (patch)
treeb2bf899c035363fbc0b561f1006a787cb06527f0 /apt-pkg/aptconfiguration.h
parent5085e660679cdbb51783702898c42000d5db4fba (diff)
parent16d7341fce96b089aa2a1c241acd0a72209bcd7f (diff)
merge from the debian-sid branch
Diffstat (limited to 'apt-pkg/aptconfiguration.h')
-rw-r--r--apt-pkg/aptconfiguration.h46
1 files changed, 46 insertions, 0 deletions
diff --git a/apt-pkg/aptconfiguration.h b/apt-pkg/aptconfiguration.h
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+// -*- mode: cpp; mode: fold -*-
+// Description /*{{{*/
+/** \class APT::Configuration
+ * \brief Provide access methods to various configuration settings
+ *
+ * This class and their methods providing a layer around the usual access
+ * methods with _config to ensure that settings are correct and to be able
+ * to set defaults without the need to recheck it in every method again.
+ */
+ /*}}}*/
+#ifndef APT_CONFIGURATION_H
+#define APT_CONFIGURATION_H
+// Include Files /*{{{*/
+#include <string>
+#include <vector>
+ /*}}}*/
+namespace APT {
+class Configuration { /*{{{*/
+public: /*{{{*/
+ /** \brief Returns a vector of usable Compression Types
+ *
+ * Files can be compressed in various ways to decrease the size of the
+ * download. Therefore the Acquiremethods support a few compression types
+ * and some archives provide also a few different types. This option
+ * group exists to give the user the choice to prefer one type over the
+ * other (some compression types are very resource intensive - great if you
+ * have a limited download, bad if you have a really lowpowered hardware.)
+ *
+ * This method ensures that the defaults are set and checks at runtime
+ * if the type can be used. E.g. the current default is to prefer bzip2
+ * over lzma and gz - if the bzip2 binary is not available it has not much
+ * sense in downloading the bz2 file, therefore we will not return bz2 as
+ * a usable compression type. The availability is checked with the settings
+ * in the Dir::Bin group.
+ *
+ * \param Cached saves the result so we need to calculated it only once
+ * this parameter should ony be used for testing purposes.
+ *
+ * \return a vector of (all) Language Codes in the prefered usage order
+ */
+ std::vector<std::string> static const getCompressionTypes(bool const &Cached = true);
+ /*}}}*/
+};
+ /*}}}*/
+}
+#endif