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| author | Peter Collingbourne <peter@pcc.me.uk> | 2011-09-22 16:04:03 (GMT) |
|---|---|---|
| committer | Peter Collingbourne <peter@pcc.me.uk> | 2011-10-15 19:23:50 (GMT) |
| commit | 7cf2bdffe2a95ea5e30e9c3166ef4398add8e6b9 (patch) | |
| tree | 2b8cd622a0fa858beb0b91da121255a82274272b /src/graph.cc | |
| parent | 07c1f9b14b5f7071a5def7d09414ec852a4372ef (diff) | |
| download | Ninja-7cf2bdffe2a95ea5e30e9c3166ef4398add8e6b9.zip Ninja-7cf2bdffe2a95ea5e30e9c3166ef4398add8e6b9.tar.gz Ninja-7cf2bdffe2a95ea5e30e9c3166ef4398add8e6b9.tar.bz2 | |
Implement generator rules
Introduce a rule attribute "generator" which, if present, specifies
that this rule is used to re-invoke the generator program. Files built
using generator rules are treated specially in two ways: firstly,
they will not be rebuilt if the command line changes; and secondly,
they are not cleaned by default.
A command line flag "-g" is introduced for the clean tool, which
causes it to remove generator files.
Fixes issue #102.
Diffstat (limited to 'src/graph.cc')
| -rw-r--r-- | src/graph.cc | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/graph.cc b/src/graph.cc index 0f16519..e1441ea 100644 --- a/src/graph.cc +++ b/src/graph.cc @@ -93,8 +93,10 @@ bool Edge::RecomputeDirty(State* state, DiskInterface* disk_interface, (*i)->dirty_ = true; } else { // May also be dirty due to the command changing since the last build. + // But if this is a generator rule, the command changing does not make us + // dirty. BuildLog::LogEntry* entry; - if (state->build_log_ && + if (!rule_->generator_ && state->build_log_ && (entry = state->build_log_->LookupByOutput((*i)->file_->path_))) { if (command != entry->command) (*i)->dirty_ = true; |