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-rw-r--r--tests/test/script/runner/driver.cxx25
1 files changed, 17 insertions, 8 deletions
diff --git a/tests/test/script/runner/driver.cxx b/tests/test/script/runner/driver.cxx
index 08d5bba..d5a74a4 100644
--- a/tests/test/script/runner/driver.cxx
+++ b/tests/test/script/runner/driver.cxx
@@ -34,22 +34,22 @@ main (int argc, char* argv[])
using butl::optional;
// Usage: driver [-i <int>] (-o <string>)* (-e <string>)* (-f <file>)*
- // (-d <dir>)* [(-t (a|m|s|z)) | (-s <int>)]
+ // (-d <dir>)* (-v <name>)* [(-t (a|m|s|z)) | (-s <int>)]
//
- // Execute actions specified by -i, -o, -e, -f, -d options in the order as
- // they appear on the command line. After that terminate abnormally if -t
- // option is provided, otherwise exit normally with the status specified by
- // -s option (0 by default).
+ // Execute actions specified by -i, -o, -e, -f, -d, and -v options in the
+ // order as they appear on the command line. After that terminate abnormally
+ // if -t option is provided, otherwise exit normally with the status
+ // specified by -s option (0 by default).
//
// -i <fd>
- // Forward STDIN data to the standard stream denoted by the file
+ // Forward stdin data to the standard stream denoted by the file
// descriptor. Read and discard if 0.
//
// -o <string>
- // Print the line to STDOUT.
+ // Print the line to stdout.
//
// -e <string>
- // Print the line to STDERR.
+ // Print the line to stderr.
//
// -f <path>
// Create an empty file with the path specified.
@@ -58,6 +58,10 @@ main (int argc, char* argv[])
// Create a directory with the path specified. Create parent directories
// if required.
//
+ // -v <name>
+ // If the specified variable is set the print its value to stdout and the
+ // string '<none>' otherwise.
+ //
// -t <method>
// Abnormally terminate itself using one of the following methods:
//
@@ -135,6 +139,11 @@ main (int argc, char* argv[])
{
try_mkdir_p (dir_path (v));
}
+ else if (o == "-v")
+ {
+ optional<string> var (getenv (v));
+ cout << (var ? *var : "<none>") << endl;
+ }
else if (o == "-t")
{
assert (aterm == '\0' && !status); // Make sure exit method is not set.