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-rw-r--r--libbutl/default-options.txx51
1 files changed, 46 insertions, 5 deletions
diff --git a/libbutl/default-options.txx b/libbutl/default-options.txx
index 730d588..5245bd6 100644
--- a/libbutl/default-options.txx
+++ b/libbutl/default-options.txx
@@ -31,6 +31,7 @@ LIBBUTL_MODEXPORT namespace butl //@@ MOD Clang needs this for some reason.
template <typename O, typename S, typename U, typename F>
bool
load_default_options_files (const dir_path& d,
+ bool args,
bool remote,
const small_vector<path, 2>& fs,
F&& fn,
@@ -42,7 +43,7 @@ LIBBUTL_MODEXPORT namespace butl //@@ MOD Clang needs this for some reason.
bool r (true);
- auto load = [&fs, &fn, &def_ops, &r] (const dir_path& d, bool remote)
+ auto load = [args, &fs, &fn, &def_ops, &r] (const dir_path& d, bool rem)
{
using namespace std;
@@ -54,7 +55,7 @@ LIBBUTL_MODEXPORT namespace butl //@@ MOD Clang needs this for some reason.
{
if (file_exists (p)) // Follows symlinks.
{
- fn (p, remote, false /* overwrite */);
+ fn (p, rem, false /* overwrite */);
S s (p.string ());
@@ -65,14 +66,26 @@ LIBBUTL_MODEXPORT namespace butl //@@ MOD Clang needs this for some reason.
// this in CLI.
//
O o;
- o.parse (s, U::fail, U::fail);
+ small_vector<std::string, 1> as;
+
+ if (args)
+ {
+ while (s.more ())
+ {
+ if (!o.parse (s, U::fail, U::stop))
+ as.push_back (s.next ());
+ }
+ }
+ else
+ o.parse (s, U::fail, U::fail);
if (o.no_default_options ())
r = false;
def_ops.push_back (default_options_entry<O> {move (p),
move (o),
- remote});
+ move (as),
+ rem});
}
}
catch (std::system_error& e)
@@ -102,7 +115,8 @@ LIBBUTL_MODEXPORT namespace butl //@@ MOD Clang needs this for some reason.
const optional<dir_path>& home_dir,
const optional<dir_path>& extra_dir,
const default_options_files& ofs,
- F&& fn)
+ F&& fn,
+ bool args)
{
if (sys_dir)
assert (sys_dir->absolute () && sys_dir->normalized ());
@@ -192,6 +206,7 @@ LIBBUTL_MODEXPORT namespace butl //@@ MOD Clang needs this for some reason.
if (load_extra && extra_dir->sub (d))
{
load = load_default_options_files<O, S, U> (*extra_dir,
+ args,
false /* remote */,
ofs.files,
std::forward<F> (fn),
@@ -204,6 +219,7 @@ LIBBUTL_MODEXPORT namespace butl //@@ MOD Clang needs this for some reason.
if (load && options_dir_exists (od))
load = load_default_options_files<O, S, U> (od,
+ args,
remote,
ofs.files,
std::forward<F> (fn),
@@ -219,6 +235,7 @@ LIBBUTL_MODEXPORT namespace butl //@@ MOD Clang needs this for some reason.
if (load && load_extra)
load = load_default_options_files<O, S, U> (*extra_dir,
+ args,
false /* remote */,
ofs.files,
std::forward<F> (fn),
@@ -230,6 +247,7 @@ LIBBUTL_MODEXPORT namespace butl //@@ MOD Clang needs this for some reason.
if (options_dir_exists (d))
load = load_default_options_files<O, S, U> (d,
+ args,
false /* remote */,
ofs.files,
std::forward<F> (fn),
@@ -238,6 +256,7 @@ LIBBUTL_MODEXPORT namespace butl //@@ MOD Clang needs this for some reason.
if (load && sys_dir && options_dir_exists (*sys_dir))
load_default_options_files<O, S, U> (*sys_dir,
+ args,
false /* remote */,
ofs.files,
std::forward<F> (fn),
@@ -269,4 +288,26 @@ LIBBUTL_MODEXPORT namespace butl //@@ MOD Clang needs this for some reason.
r.merge (cmd_ops);
return r;
}
+
+ template <typename O, typename AS, typename F>
+ AS
+ merge_default_arguments (const default_options<O>& def_ops,
+ const AS& cmd_args,
+ F&& fn)
+ {
+ AS r;
+ for (const default_options_entry<O>& e: def_ops)
+ {
+ fn (e, cmd_args);
+ r.insert (r.end (), e.arguments.begin (), e.arguments.end ());
+ }
+
+ // Optimize for the common case.
+ //
+ if (r.empty ())
+ return cmd_args;
+
+ r.insert (r.end (), cmd_args.begin (), cmd_args.end ());
+ return r;
+ }
}