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-rw-r--r--butl/filesystem64
1 files changed, 53 insertions, 11 deletions
diff --git a/butl/filesystem b/butl/filesystem
index 0a5d7eb..9168f19 100644
--- a/butl/filesystem
+++ b/butl/filesystem
@@ -12,6 +12,7 @@
#endif
#include <cstddef> // ptrdiff_t
+#include <cstdint> // uint16_t
#include <utility> // move()
#include <iterator>
@@ -20,14 +21,6 @@
namespace butl
{
- // Return timestamp_nonexistent if the entry at the specified path
- // does not exist or is not a path. All other errors are reported
- // by throwing std::system_error. Note that this function resolves
- // symlinks.
- //
- timestamp
- file_mtime (const path&);
-
// Return true if the path is to an existing directory. Note that
// this function resolves symlinks.
//
@@ -54,13 +47,13 @@ namespace butl
enum class mkdir_status {success, already_exists};
mkdir_status
- try_mkdir (const path&, mode_t = 0777);
+ try_mkdir (const dir_path&, mode_t = 0777);
// The '-p' version of the above (i.e., it creates the parent
// directories if necessary).
//
mkdir_status
- try_mkdir_p (const path&, mode_t = 0777);
+ try_mkdir_p (const dir_path&, mode_t = 0777);
// Try to remove the directory returning not_exist if it does not
// exist and not_empty if it is not empty. All other errors are
@@ -69,7 +62,19 @@ namespace butl
enum class rmdir_status {success, not_exist, not_empty};
rmdir_status
- try_rmdir (const path&);
+ try_rmdir (const dir_path&);
+
+ // The '-r' (recursive) version of the above. Note that it will
+ // never return not_empty.
+ //
+ rmdir_status
+ try_rmdir_r (const dir_path&);
+
+ // As above but throws rather than returns not_exist if the directory
+ // does not exist, so check before calling.
+ //
+ void
+ rmdir_r (const dir_path&);
// Try to remove the file (or symlinks) returning not_exist if
// it does not exist. All other errors are reported by throwing
@@ -80,6 +85,43 @@ namespace butl
rmfile_status
try_rmfile (const path&);
+ // Return timestamp_nonexistent if the entry at the specified path
+ // does not exist or is not a path. All other errors are reported
+ // by throwing std::system_error. Note that this function resolves
+ // symlinks.
+ //
+ timestamp
+ file_mtime (const path&);
+
+ // Path permissions.
+ //
+ enum class permissions: std::uint16_t
+ {
+ // Note: matching POSIX values.
+ //
+ xo = 0001,
+ wo = 0002,
+ ro = 0004,
+
+ xg = 0010,
+ wg = 0020,
+ rg = 0040,
+
+ xu = 0100,
+ wu = 0200,
+ ru = 0400,
+
+ none = 0
+ };
+
+ permissions operator& (permissions, permissions);
+ permissions operator| (permissions, permissions);
+ permissions operator&= (permissions&, permissions);
+ permissions operator|= (permissions&, permissions);
+
+ permissions
+ path_permissions (const path&);
+
// Directory entry iteration.
//
enum class entry_type