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Added variable/expression interpolation to LEF paths so it is possible use environment variables there.

This commit is contained in:
Matthias Koefferlein 2023-08-03 23:27:31 +02:00
parent 7d749140f7
commit f518d1aa1d
1 changed files with 18 additions and 3 deletions
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21
src/plugins/streamers/lefdef/db_plugin/dbLEFDEFImporter.cc
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@ -37,14 +37,29 @@ namespace db
// -----------------------------------------------------------------------------------
// Path resolution utility
std::string correct_path (const std::string &fn, const db::Layout &layout, const std::string &base_path)
std::string correct_path (const std::string &fn_in, const db::Layout &layout, const std::string &base_path)
{
const db::Technology *tech = layout.technology ();
// Allow LEF reference through expressions, i.e.
// $(base_path) - path of the main file
// $(tech_dir) - the location of the .lyt file if a technology is specified
// $(tech_name) - the name of the technology if one is specified
// In addition expressions are interpolated, e.g. "$(env('HOME'))".
tl::Eval expr;
expr.set_var ("base_path", base_path);
if (tech) {
expr.set_var ("tech_dir", tech->base_path ());
expr.set_var ("tech_name", tech->name ());
}
std::string fn = expr.interpolate (fn_in);
if (! tl::is_absolute (fn)) {
// if a technology is given and the file can be found in the technology's base path, take it
// from there.
const db::Technology *tech = layout.technology ();
if (tech && ! tech->base_path ().empty ()) {
std::string new_fn = tl::combine_path (tech->base_path (), fn);
if (tl::file_exists (new_fn)) {