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// file : libbuild2/test/init.cxx -*- C++ -*-
// license : MIT; see accompanying LICENSE file
#include <libbuild2/test/init.hxx>
#include <libbuild2/scope.hxx>
#include <libbuild2/target.hxx>
#include <libbuild2/rule.hxx>
#include <libbuild2/diagnostics.hxx>
#include <libbuild2/config/utility.hxx>
#include <libbuild2/test/module.hxx>
#include <libbuild2/test/target.hxx>
#include <libbuild2/test/operation.hxx>
using namespace std;
using namespace butl;
namespace build2
{
namespace test
{
bool
boot (scope& rs, const location&, module_boot_extra& extra)
{
tracer trace ("test::boot");
l5 ([&]{trace << "for " << rs;});
// Register our operations.
//
rs.insert_operation (test_id, op_test);
rs.insert_operation (update_for_test_id, op_update_for_test);
// Enter module variables. Do it during boot in case they get assigned
// in bootstrap.build.
//
auto& vp (rs.var_pool ());
common_data d {
// Tests to execute.
//
// Specified as <target>@<path-id> pairs with both sides being
// optional. The variable is untyped (we want a list of name-pairs),
// overridable, and with global visibiility. The target is relative
// (in essence a prerequisite) which is resolved from the (root) scope
// where the config.test value is defined.
//
vp.insert ("config.test"),
// Test working directory before/after cleanup (see Testscript spec
// for semantics).
//
vp.insert<name_pair> ("config.test.output"),
// The test variable is a name which can be a path (with the
// true/false special values) or a target name.
//
vp.insert<name> ("test", variable_visibility::target),
vp.insert<strings> ("test.options"),
vp.insert<strings> ("test.arguments"),
// Prerequisite-specific.
//
// test.stdin and test.stdout can be used to mark a prerequisite as a
// file to redirect stdin from and to compare stdout to, respectively.
// test.roundtrip is a shortcut to mark a prerequisite as both stdin
// and stdout.
//
// Prerequisites marked with test.input are treated as additional test
// inputs: they are made sure to be up to date and their paths are
// passed as additional command line arguments (after test.options and
// test.arguments). Their primary use is to pass inputs that may have
// varying file names/paths, for example:
//
// exe{parent}: exe{child}: test.input = true
//
// Note that currently this mechanism is only available to simple
// tests though we could also support it for testscript (e.g., by
// appending the input paths to test.arguments or by passing them in a
// separate test.inputs variable).
//
vp.insert<bool> ("test.stdin", variable_visibility::prereq),
vp.insert<bool> ("test.stdout", variable_visibility::prereq),
vp.insert<bool> ("test.roundtrip", variable_visibility::prereq),
vp.insert<bool> ("test.input", variable_visibility::prereq),
// Test target platform.
//
vp.insert<target_triplet> ("test.target")
};
// This one is used by other modules/rules.
//
vp.insert<bool> ("for_test", variable_visibility::prereq);
// These are only used in testscript.
//
vp.insert<strings> ("test.redirects");
vp.insert<strings> ("test.cleanups");
// Unless already set, default test.target to build.host. Note that it
// can still be overriden by the user, e.g., in root.build.
//
{
value& v (rs.assign (d.test_target));
if (!v || v.empty ())
v = cast<target_triplet> (rs.ctx.global_scope["build.host"]);
}
extra.set_module (new module (move (d)));
return false;
}
bool
init (scope& rs,
scope&,
const location& l,
bool first,
bool,
module_init_extra& extra)
{
tracer trace ("test::init");
if (!first)
{
warn (l) << "multiple test module initializations";
return true;
}
l5 ([&]{trace << "for " << rs;});
auto& m (extra.module_as<module> ());
// Configuration.
//
using config::lookup_config;
// Adjust module priority so that the config.test.* values are saved at
// the end of config.build.
//
config::save_module (rs, "test", INT32_MAX);
// config.test
//
if (lookup l = lookup_config (rs, m.config_test))
{
// Figure out which root scope it came from.
//
scope* s (&rs);
for (;
s != nullptr && !l.belongs (*s);
s = s->parent_scope ()->root_scope ())
assert (s != nullptr);
m.test_ = &cast<names> (l);
m.root_ = s;
}
// config.test.output
//
if (lookup l = lookup_config (rs, m.config_test_output))
{
const name_pair& p (cast<name_pair> (l));
// If second half is empty, then first is the after value.
//
const name& a (p.second.empty () ? p.first : p.second); // after
const name& b (p.second.empty () ? p.second : p.first); // before
// Parse and validate.
//
if (!b.simple ())
fail << "invalid config.test.output before value '" << b << "'";
if (!a.simple ())
fail << "invalid config.test.output after value '" << a << "'";
if (a.value == "clean") m.after = output_after::clean;
else if (a.value == "keep") m.after = output_after::keep;
else fail << "invalid config.test.output after value '" << a << "'";
if (b.value == "fail") m.before = output_before::fail;
else if (b.value == "warn") m.before = output_before::warn;
else if (b.value == "clean") m.before = output_before::clean;
else if (b.value == "") m.before = output_before::clean;
else fail << "invalid config.test.output before value '" << b << "'";
}
//@@ TODO: Need ability to specify extra diff options (e.g.,
// --strip-trailing-cr, now hardcoded).
//
//@@ TODO: Pring report.
// Register target types.
//
{
auto& tt (rs.insert_target_type<testscript> ());
rs.insert_target_type_file ("testscript", tt);
}
// Register our test running rule.
//
{
default_rule& dr (m);
// Note: register for mtime_target to take priority over the fallback
// rule below.
//
rs.insert_rule<target> (perform_test_id, "test", dr);
rs.insert_rule<mtime_target> (perform_test_id, "test", dr);
rs.insert_rule<alias> (perform_test_id, "test", dr);
// Register the fallback file rule for the update-for-test operation,
// similar to update.
//
rs.global_scope ().insert_rule<mtime_target> (
perform_test_id, "file", file_rule::instance);
}
return true;
}
static const module_functions mod_functions[] =
{
{"test", &boot, &init},
{nullptr, nullptr, nullptr}
};
const module_functions*
build2_test_load ()
{
return mod_functions;
}
}
}
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