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// file : libbuild2/filesystem.txx -*- C++ -*-
// license : MIT; see accompanying LICENSE file
#include <type_traits> // is_base_of
#include <libbuild2/diagnostics.hxx>
namespace build2
{
template <typename T>
fs_status<butl::rmfile_status>
rmfile (context& ctx, const path& f, const T& t, uint16_t v)
{
using namespace butl;
// We don't want to print the command if we couldn't remove the file
// because it does not exist (just like we don't print the update command
// if the file is up to date). This makes the below code a bit ugly.
//
auto print = [&f, &t, v] ()
{
if (verb >= v)
{
if (verb >= 2)
text << "rm " << f;
else if (verb)
text << "rm " << t;
}
};
rmfile_status rs;
try
{
rs = ctx.dry_run
? file_exists (f) ? rmfile_status::success : rmfile_status::not_exist
: try_rmfile (f);
}
catch (const system_error& e)
{
print ();
fail << "unable to remove file " << f << ": " << e << endf;
}
if (rs == rmfile_status::success)
print ();
return rs;
}
template <typename T>
fs_status<butl::rmdir_status>
rmdir (context& ctx, const dir_path& d, const T& t, uint16_t v)
{
using namespace butl;
// We don't want to print the command if we couldn't remove the directory
// because it does not exist (just like we don't print mkdir if it already
// exists) or if it is not empty. This makes the below code a bit ugly.
//
auto print = [&d, &t, v] ()
{
if (verb >= v)
{
if (verb >= 2)
text << "rmdir " << d;
else if (verb)
text << (std::is_base_of<dir_path, T>::value ? "rmdir " : "rm ") << t;
}
};
bool w (false); // Don't try to remove working directory.
rmdir_status rs;
try
{
rs = ctx.dry_run
? dir_exists (d) ? rmdir_status::success : rmdir_status::not_exist
: !(w = work.sub (d)) ? try_rmdir (d) : rmdir_status::not_empty;
}
catch (const system_error& e)
{
print ();
fail << "unable to remove directory " << d << ": " << e << endf;
}
switch (rs)
{
case rmdir_status::success:
{
print ();
break;
}
case rmdir_status::not_empty:
{
if (verb >= v && verb >= 2)
{
text << d << " is "
<< (w ? "current working directory" : "not empty")
<< ", not removing";
}
break;
}
case rmdir_status::not_exist:
break;
}
return rs;
}
}
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