diff options
Diffstat (limited to 'waftools')
| -rw-r--r-- | waftools/dependencies.py | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/waftools/dependencies.py b/waftools/dependencies.py index 87f236b362..994e1d10b2 100644 --- a/waftools/dependencies.py +++ b/waftools/dependencies.py @@ -212,6 +212,17 @@ def filtered_sources(ctx, sources): return [__source_file__(source) for source in sources \ if __unpack_and_check_filter__(source)] +""" +Like filtered_sources(), but pick only the first entry that matches, and +return its filename. +""" +def pick_first_matching_dep(ctx, deps): + files = filtered_sources(ctx, deps) + if len(files) > 0: + return files[0] + else: + raise DependencyError + def env_fetch(tx): def fn(ctx): deps = ctx.env.satisfied_deps @@ -223,6 +234,7 @@ def dependencies_use(ctx): return [inflector.storage_key(dep) for dep in ctx.env.satisfied_deps] BuildContext.filtered_sources = filtered_sources +BuildContext.pick_first_matching_dep = pick_first_matching_dep BuildContext.dependencies_use = dependencies_use BuildContext.dependencies_includes = env_fetch(lambda x: "INCLUDES_{0}".format(x)) BuildContext.dependency_satisfied = dependency_satisfied |