Add support for Gentoo file to package query

On Gentoo systems where `app-portage/gentoolkit` is installed the binary
`equery` is used to query for information on which package a file
belongs to.

Signed-off-by: Michael Vetter <jubalh@iodoru.org>

1 files changed, 8 insertions, 1 deletions

diff --git a/libpod/util.go b/libpod/util.go
index 8faf665e7..bf9bf2542 100644
--- a/libpod/util.go
+++ b/libpod/util.go
@@ -153,6 +153,10 @@ func queryPackageVersion(cmdArg ...string) string {
 	return strings.Trim(output, "\n")
 }
 
+func equeryVersion(path string) string {
+	return queryPackageVersion("/usr/bin/equery", "b", path)
+}
+
 func pacmanVersion(path string) string {
 	return queryPackageVersion("/usr/bin/pacman", "-Qo", path)
 }
@@ -172,7 +176,10 @@ func packageVersion(program string) string {
 	if out := dpkgVersion(program); out != unknownPackage {
 		return out
 	}
-	return pacmanVersion(program)
+	if out := pacmanVersion(program); out != unknownPackage {
+		return out
+	}
+	return equeryVersion(program)
 }
 
 func programVersion(mountProgram string) (string, error) {