feat: add include paths of transitive deps for Fortran rules (#171)

rules_fortran/defs.bzl

@@ -76,6 +76,7 @@ def _fortran_binary_impl(ctx):
  objects = _compile(
  actions = ctx.actions,
  defines = ctx.attr.defines,
+ deps = ctx.attr.deps,
  feature_configuration = feature_configuration,
  fopts = ctx.attr.fopts,
  fortran_toolchain = fortran_toolchain,
@@ -118,6 +119,7 @@ def _fortran_library_impl(ctx):
  objects = _compile(
  actions = ctx.actions,
  defines = ctx.attr.defines,
+ deps = ctx.attr.deps,
  feature_configuration = feature_configuration,
  fopts = ctx.attr.fopts,
  fortran_toolchain = fortran_toolchain,
@@ -140,6 +142,7 @@ def _fortran_library_impl(ctx):
  ),
  OutputGroupInfo(
  archive = depset([output]),
+ includes = ctx.files.includes,
  ),
  ]
 
@@ -167,6 +170,7 @@ def _get_configuration(ctx):
 def _compile(
  actions,
  defines,
+ deps,
  feature_configuration,
  fopts,
  fortran_toolchain,
@@ -178,8 +182,17 @@ def _compile(
  actions.declare_file(paths.replace_extension(src.path, ".o"))
  for src in srcs
  ]
+ deps_includes = []
+ for dep in deps:
+ if hasattr(dep.output_groups, "includes"):
+ deps_includes.append(dep.output_groups.includes)
+ deps_includes = depset(direct = [], transitive = deps_includes)
+ deps_includes_flags = [
+ "-I{}".format(inc.dirname)
+ for inc in deps_includes.to_list()
+ ]
  defines_flags = ["-D{}".format(define) for define in defines]
- flags = defines_flags + compile_flags + fopts
+ flags = defines_flags + compile_flags + fopts + deps_includes_flags
  command = """\
 set -o errexit -o nounset -o pipefail
 
@@ -200,7 +213,10 @@ set -o errexit -o nounset -o pipefail
  )
  actions.run_shell(
  command = command,
- inputs = depset(srcs + includes),
+ inputs = depset(
+ direct = srcs + includes,
+ transitive = [deps_includes],
+ ),
  outputs = objects,
  tools = fortran_toolchain.all_files,
  )