diff options
Diffstat (limited to 'libbuild2')
| -rw-r--r-- | libbuild2/functions-filesystem.cxx | 51 |
1 files changed, 49 insertions, 2 deletions
diff --git a/libbuild2/functions-filesystem.cxx b/libbuild2/functions-filesystem.cxx index 665a0f3..340c2bc 100644 --- a/libbuild2/functions-filesystem.cxx +++ b/libbuild2/functions-filesystem.cxx @@ -5,6 +5,7 @@ #include <libbuild2/function.hxx> #include <libbuild2/variable.hxx> +#include <libbuild2/filesystem.hxx> using namespace std; using namespace butl; @@ -95,14 +96,60 @@ namespace build2 return r; } + static bool + file_exists (path&& f) + { + if (f.relative () && path_traits::thread_current_directory () != nullptr) + f.complete (); + + return exists (f); + } + + static bool + directory_exists (dir_path&& d) + { + if (d.relative () && path_traits::thread_current_directory () != nullptr) + d.complete (); + + return exists (d); + } + void filesystem_functions (function_map& m) { - // @@ Maybe we should have the ability to mark the whole family as not - // pure? + // NOTE: anything that depends on relative path must handle the + // thread-specific curren directory override explicitly. function_family f (m, "filesystem"); + // $file_exists(<path>) + // + // Return true if a filesystem entry at the specified path exists and is a + // regular file (or is a symlink to a regular file) and false otherwise. + // + // Note that this function is not pure. + // + { + auto e (f.insert ("file_exists", false)); + + e += [](path f) {return file_exists (move (f));}; + e += [](names ns) {return file_exists (convert<path> (move (ns)));}; + } + + // $directory_exists(<path>) + // + // Return true if a filesystem entry at the specified path exists and is a + // directory (or is a symlink to a directory) and false otherwise. + // + // Note that this function is not pure. + // + { + auto e (f.insert ("directory_exists", false)); + + e += [](path f) {return directory_exists (path_cast<dir_path> (move (f)));}; + e += [](names ns) {return directory_exists (convert<dir_path> (move (ns)));}; + } + // $path_search(<pattern>[, <start-dir>]) // // Return filesystem paths that match the shell-like wildcard pattern. If |