cd to / before running soong_build .
This lets one avoid any decisions as to when to chdir there during its
execution and leads to better sandboxing because the pwd doesn't leak to
init() functions anymore.
Test: Manual.
Change-Id: I1560da8ed3a621249426f9e8908aa890c21e13ba
diff --git a/shared/paths.go b/shared/paths.go
index 1b9ff60..fca8b4c 100644
--- a/shared/paths.go
+++ b/shared/paths.go
@@ -30,6 +30,21 @@
BazelMetricsDir() string
}
+// Joins the path strings in the argument list, taking absolute paths into
+// account. That is, if one of the strings is an absolute path, the ones before
+// are ignored.
+func JoinPath(base string, rest ...string) string {
+ result := base
+ for _, next := range rest {
+ if filepath.IsAbs(next) {
+ result = next
+ } else {
+ result = filepath.Join(result, next)
+ }
+ }
+ return result
+}
+
// Given the out directory, returns the root of the temp directory (to be cleared at the start of each execution of Soong)
func TempDirForOutDir(outDir string) (tempPath string) {
return filepath.Join(outDir, ".temp")