[PATCH] dpkg-base: Add devshell_nodeps task

[Jan Kiszka <jan.kiszka@siemens.com>]

From: Jan Kiszka <jan.kiszka@siemens.com>

This is useful for debugging dependency issues that apt is usually weak
in presenting clearly. In that case, you may want to beam into the
buildchroot and issue the dependency installation steps manually. The
default devshell is designed to support the build, thus pulls in all
deps first and cannot help here. Therefore this new separate task.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
 meta/classes/dpkg-base.bbclass | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/meta/classes/dpkg-base.bbclass b/meta/classes/dpkg-base.bbclass
index 83500da8..8bbc4165 100644
--- a/meta/classes/dpkg-base.bbclass
+++ b/meta/classes/dpkg-base.bbclass
@@ -269,3 +269,13 @@ addtask devshell after do_prepare_build
 DEVSHELL_STARTDIR ?= "${S}"
 do_devshell[dirs] = "${DEVSHELL_STARTDIR}"
 do_devshell[nostamp] = "1"
+
+python do_devshell_nodeps() {
+    bb.build.exec_func('do_devshell', d)
+}
+
+# devshell may be placed after do_instell_builddeps in downstream classes.
+# devshell_nodeps will always stay right after do_prepare_build.
+addtask devshell_nodeps after do_prepare_build
+do_devshell_nodeps[dirs] = "${DEVSHELL_STARTDIR}"
+do_devshell_nodeps[nostamp] = "1"
-- 
2.31.1