diff options
| -rw-r--r-- | libbutl/filesystem.cxx | 7 | ||||
| -rw-r--r-- | libbutl/filesystem.hxx | 69 |
2 files changed, 42 insertions, 34 deletions
diff --git a/libbutl/filesystem.cxx b/libbutl/filesystem.cxx index bb3e8b0..07d0590 100644 --- a/libbutl/filesystem.cxx +++ b/libbutl/filesystem.cxx @@ -1695,9 +1695,12 @@ namespace butl } void - cpfile (const path& from, const path& to, cpflags fl) + cpfile (const path& from, + const path& to, + cpflags fl, + optional<permissions> cperm) { - permissions perm (path_permissions (from)); + permissions perm (cperm ? *cperm : path_permissions (from)); auto_rmfile rm; cpfile<is_base_of<system_error, ios_base::failure>::value> ( diff --git a/libbutl/filesystem.hxx b/libbutl/filesystem.hxx index ea5597d..0f5fb0b 100644 --- a/libbutl/filesystem.hxx +++ b/libbutl/filesystem.hxx @@ -36,6 +36,32 @@ namespace butl { + // 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 + }; + + inline permissions operator& (permissions, permissions); + inline permissions operator| (permissions, permissions); + inline permissions operator&= (permissions&, permissions); + inline permissions operator|= (permissions&, permissions); + // Return true if the path is to an existing regular file. Note that by // default this function follows symlinks. Underlying OS errors are reported // by throwing std::system_error, unless ignore_error is true (in which case @@ -381,11 +407,13 @@ namespace butl inline cpflags operator&= (cpflags&, cpflags); inline cpflags operator|= (cpflags&, cpflags); - // Copy a regular file, including its permissions, and optionally timestamps. - // Throw std::system_error on failure. Fail if the destination file exists - // and the overwrite_content flag is not set. Leave permissions of an - // existing destination file intact unless the overwrite_permissions flag is - // set. Delete incomplete copies before throwing. + // Copy a regular file, including its permissions (unless custom permissions + // are specified), and optionally timestamps. Throw std::system_error on + // failure. Fail if the destination file exists and the overwrite_content + // flag is not set. Leave permissions of an existing destination file intact + // (including if custom permissions are specified) unless the + // overwrite_permissions flag is set. Delete incomplete copies before + // throwing. // // Note that in case of overwriting, the existing destination file gets // truncated (not deleted) prior to being overwritten. As a side-effect, @@ -397,7 +425,10 @@ namespace butl // fail. // LIBBUTL_SYMEXPORT void - cpfile (const path& from, const path& to, cpflags = cpflags::none); + cpfile (const path& from, + const path& to, + cpflags = cpflags::none, + optional<permissions> perm = nullopt); // Copy a regular file into (inside) an existing directory. // @@ -605,32 +636,6 @@ namespace butl return dir_atime (p.string ().c_str (), t); } - // 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 - }; - - inline permissions operator& (permissions, permissions); - inline permissions operator| (permissions, permissions); - inline permissions operator&= (permissions&, permissions); - inline permissions operator|= (permissions&, permissions); - // Get path permissions. Throw std::system_error on failure. Note that this // function resolves symlinks. // |