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-rw-r--r--libbuild2/rule.cxx152
-rw-r--r--libbuild2/rule.hxx3
2 files changed, 147 insertions, 8 deletions
diff --git a/libbuild2/rule.cxx b/libbuild2/rule.cxx
index bbb854c..d89cf39 100644
--- a/libbuild2/rule.cxx
+++ b/libbuild2/rule.cxx
@@ -379,18 +379,154 @@ namespace build2
{
// @@ Perhaps we should have different implementations for file-based
// targets (depdb, timestamp, etc) and non.
- //
- return [r] (action a, const target& t)
+
+ switch (a)
{
- // @@ TODO
- text << t << ' ' << a << ' ' << r;
- return target_state::unchanged;
- };
+ case perform_update_id: return [r] (action a, const target& t)
+ {
+ return perform_update (a, t, *r);
+ };
+ default: return [r] (action a, const target& t)
+ {
+ // @@ TODO
+ text << t << ' ' << a << ' ' << r;
+ return target_state::unchanged;
+ };
+ }
+ }
+ else
+ {
+ // Otherwise this should be the standard clean.
+ //
+ return &perform_clean_depdb;
}
+ }
+
+ target_state adhoc_rule::
+ perform_update (action, const target&, const adhoc_recipe&)
+ {
+ tracer trace ("adhoc_rule::perform_update");
+
+#if 0
+ // The rule has been matched which means the members should be resolved
+ // and paths assigned. We use the header file as our "target path" for
+ // timestamp, depdb, etc.
+ //
+ const cli_cxx& t (xt.as<cli_cxx> ());
+ const path& tp (t.h->path ());
+
+ // Update prerequisites and determine if any relevant ones render us
+ // out-of-date. Note that currently we treat all the prerequisites as
+ // potentially affecting the result (think prologues/epilogues, CLI
+ // compiler target itself, etc).
+ //
+ timestamp mt (t.load_mtime (tp));
+ auto pr (execute_prerequisites<cli> (a, t, mt));
+
+ bool update (!pr.first);
+ target_state ts (update ? target_state::changed : *pr.first);
- // Otherwise this should be the standard clean.
+ const cli& s (pr.second);
+
+ // We use depdb to track changes to the .cli file name, options,
+ // compiler, etc.
//
- return &perform_clean_depdb;
+ depdb dd (tp + ".d");
+ {
+ // First should come the rule name/version.
+ //
+ if (dd.expect ("cli.compile 1") != nullptr)
+ l4 ([&]{trace << "rule mismatch forcing update of " << t;});
+
+ // Then the compiler checksum.
+ //
+ if (dd.expect (csum) != nullptr)
+ l4 ([&]{trace << "compiler mismatch forcing update of " << t;});
+
+ // Then the options checksum.
+ //
+ sha256 cs;
+ append_options (cs, t, "cli.options");
+
+ if (dd.expect (cs.string ()) != nullptr)
+ l4 ([&]{trace << "options mismatch forcing update of " << t;});
+
+ // Finally the .cli input file.
+ //
+ if (dd.expect (s.path ()) != nullptr)
+ l4 ([&]{trace << "input file mismatch forcing update of " << t;});
+ }
+
+ // Update if depdb mismatch.
+ //
+ if (dd.writing () || dd.mtime > mt)
+ update = true;
+
+ dd.close ();
+
+ // If nothing changed, then we are done.
+ //
+ if (!update)
+ return ts;
+
+ // Translate paths to relative (to working directory). This results in
+ // easier to read diagnostics.
+ //
+ path relo (relative (t.dir));
+ path rels (relative (s.path ()));
+
+ const process_path& pp (ctgt.process_path ());
+ cstrings args {pp.recall_string ()};
+
+ // See if we need to pass --output-{prefix,suffix}
+ //
+ string prefix, suffix;
+ match_stem (t.name, s.name, &prefix, &suffix);
+
+ if (!prefix.empty ())
+ {
+ args.push_back ("--output-prefix");
+ args.push_back (prefix.c_str ());
+ }
+
+ if (!suffix.empty ())
+ {
+ args.push_back ("--output-suffix");
+ args.push_back (suffix.c_str ());
+ }
+
+ // See if we need to pass any --?xx-suffix options.
+ //
+ append_extension (args, *t.h, "--hxx-suffix", "hxx");
+ append_extension (args, *t.c, "--cxx-suffix", "cxx");
+ if (t.i != nullptr)
+ append_extension (args, *t.i, "--ixx-suffix", "ixx");
+
+ append_options (args, t, "cli.options");
+
+ if (!relo.empty ())
+ {
+ args.push_back ("-o");
+ args.push_back (relo.string ().c_str ());
+ }
+
+ args.push_back (rels.string ().c_str ());
+ args.push_back (nullptr);
+
+ if (verb >= 2)
+ print_process (args);
+ else if (verb)
+ text << "cli " << s;
+
+ if (!t.ctx.dry_run)
+ {
+ run (pp, args);
+ dd.check_mtime (tp);
+ }
+
+ t.mtime (system_clock::now ());
+#endif
+ return target_state::changed;
}
const adhoc_rule adhoc_rule::instance;
diff --git a/libbuild2/rule.hxx b/libbuild2/rule.hxx
index c15064e..d712957 100644
--- a/libbuild2/rule.hxx
+++ b/libbuild2/rule.hxx
@@ -122,6 +122,9 @@ namespace build2
virtual recipe
apply (action, target&) const override;
+ static target_state
+ perform_update (action, const target&, const adhoc_recipe&);
+
adhoc_rule () {}
static const adhoc_rule instance;
static const rule_match match_instance;