Fix include paths that match one file being included unconditionally
In aosp/1962181 an "optimization" was added where if an include
path with a variable only matches one file, that file would be
called directly instead of going through the whole _entry
variable.
This doesn't work when there is an inherit-product-if-exists call
that matches one file, but that file isn't the one that is specified
at runtime. In reality, the inherit-product-if-exists call should
see that the file doesn't exist and not include anything.
Fixes: 222341691
Test: go test
Change-Id: If8789de0013726137683078355161eecdec009b1
diff --git a/mk2rbc/mk2rbc.go b/mk2rbc/mk2rbc.go
index 7c1176b..74053fe 100644
--- a/mk2rbc/mk2rbc.go
+++ b/mk2rbc/mk2rbc.go
@@ -807,20 +807,16 @@
if len(matchingPaths) > maxMatchingFiles {
return []starlarkNode{ctx.newBadNode(v, "there are >%d files matching the pattern, please rewrite it", maxMatchingFiles)}
}
- if len(matchingPaths) == 1 {
- res := inheritedStaticModule{ctx.newDependentModule(matchingPaths[0], loadAlways && ctx.ifNestLevel == 0), loadAlways}
- return []starlarkNode{processModule(res)}
- } else {
- needsWarning := pathPattern[0] == "" && len(ctx.includeTops) == 0
- res := inheritedDynamicModule{*varPath, []*moduleInfo{}, loadAlways, ctx.errorLocation(v), needsWarning}
- for _, p := range matchingPaths {
- // A product configuration files discovered dynamically may attempt to inherit
- // from another one which does not exist in this source tree. Prevent load errors
- // by always loading the dynamic files as optional.
- res.candidateModules = append(res.candidateModules, ctx.newDependentModule(p, true))
- }
- return []starlarkNode{processModule(res)}
+
+ needsWarning := pathPattern[0] == "" && len(ctx.includeTops) == 0
+ res := inheritedDynamicModule{*varPath, []*moduleInfo{}, loadAlways, ctx.errorLocation(v), needsWarning}
+ for _, p := range matchingPaths {
+ // A product configuration files discovered dynamically may attempt to inherit
+ // from another one which does not exist in this source tree. Prevent load errors
+ // by always loading the dynamic files as optional.
+ res.candidateModules = append(res.candidateModules, ctx.newDependentModule(p, true))
}
+ return []starlarkNode{processModule(res)}
}
func (ctx *parseContext) findMatchingPaths(pattern []string) []string {
diff --git a/mk2rbc/mk2rbc_test.go b/mk2rbc/mk2rbc_test.go
index a162021..55d48ff 100644
--- a/mk2rbc/mk2rbc_test.go
+++ b/mk2rbc/mk2rbc_test.go
@@ -1081,7 +1081,13 @@
def init(g, handle):
cfg = rblf.cfg(handle)
g["MY_PATH"] = "foo"
- rblf.inherit(handle, "vendor/foo1/cfg", _cfg_init)
+ _entry = {
+ "vendor/foo1/cfg.mk": ("vendor/foo1/cfg", _cfg_init),
+ }.get("%s/cfg.mk" % g["MY_PATH"])
+ (_varmod, _varmod_init) = _entry if _entry else (None, None)
+ if not _varmod_init:
+ rblf.mkerror("product.mk", "Cannot find %s" % ("%s/cfg.mk" % g["MY_PATH"]))
+ rblf.inherit(handle, _varmod, _varmod_init)
`,
},
{
@@ -1101,8 +1107,20 @@
def init(g, handle):
cfg = rblf.cfg(handle)
g["MY_PATH"] = "foo"
- rblf.inherit(handle, "vendor/foo1/cfg", _cfg_init)
- rblf.inherit(handle, "vendor/foo1/cfg", _cfg_init)
+ _entry = {
+ "vendor/foo1/cfg.mk": ("vendor/foo1/cfg", _cfg_init),
+ }.get("%s/cfg.mk" % g["MY_PATH"])
+ (_varmod, _varmod_init) = _entry if _entry else (None, None)
+ if not _varmod_init:
+ rblf.mkerror("product.mk", "Cannot find %s" % ("%s/cfg.mk" % g["MY_PATH"]))
+ rblf.inherit(handle, _varmod, _varmod_init)
+ _entry = {
+ "vendor/foo1/cfg.mk": ("vendor/foo1/cfg", _cfg_init),
+ }.get("%s/cfg.mk" % g["MY_PATH"])
+ (_varmod, _varmod_init) = _entry if _entry else (None, None)
+ if not _varmod_init:
+ rblf.mkerror("product.mk", "Cannot find %s" % ("%s/cfg.mk" % g["MY_PATH"]))
+ rblf.inherit(handle, _varmod, _varmod_init)
`,
},
{
@@ -1126,9 +1144,21 @@
def init(g, handle):
cfg = rblf.cfg(handle)
- rblf.inherit(handle, "foo/font", _font_init)
+ _entry = {
+ "foo/font.mk": ("foo/font", _font_init),
+ }.get("%s/font.mk" % g.get("MY_VAR", ""))
+ (_varmod, _varmod_init) = _entry if _entry else (None, None)
+ if not _varmod_init:
+ rblf.mkerror("product.mk", "Cannot find %s" % ("%s/font.mk" % g.get("MY_VAR", "")))
+ rblf.inherit(handle, _varmod, _varmod_init)
# There's some space and even this comment between the include_top and the inherit-product
- rblf.inherit(handle, "foo/font", _font_init)
+ _entry = {
+ "foo/font.mk": ("foo/font", _font_init),
+ }.get("%s/font.mk" % g.get("MY_VAR", ""))
+ (_varmod, _varmod_init) = _entry if _entry else (None, None)
+ if not _varmod_init:
+ rblf.mkerror("product.mk", "Cannot find %s" % ("%s/font.mk" % g.get("MY_VAR", "")))
+ rblf.inherit(handle, _varmod, _varmod_init)
rblf.mkwarning("product.mk:11", "Please avoid starting an include path with a variable. See https://source.android.com/setup/build/bazel/product_config/issues/includes for details.")
_entry = {
"foo/font.mk": ("foo/font", _font_init),