[PATCH 1/9] oe/patch: drop shell=True from runcmd

[Anders Heimer <anders.heimer@est.tech>]

Run runcmd() argument lists directly instead of joining them into a
shell command string.

Callers that still require shell syntax continue to invoke sh -c
explicitly and are left for separate cleanup.

Running Popen with shell=True could return shell status 127/126.
Preserve that behavior by translating the errno codes.

Unrelated bug fix: Stop shifting the return code by 8 bits.
subprocess.Popen.returncode is already the process exit status.

Reviewed-by: Daniel Turull <daniel.turull@ericsson.com>
Signed-off-by: Anders Heimer <anders.heimer@est.tech>
---
 meta/lib/oe/patch.py | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/meta/lib/oe/patch.py b/meta/lib/oe/patch.py
index 2cd8de22c7..b152a2d784 100644
--- a/meta/lib/oe/patch.py
+++ b/meta/lib/oe/patch.py
@@ -5,6 +5,7 @@
 #
 
 import os
+import errno
 import shlex
 import subprocess
 import oe.path
@@ -37,16 +38,19 @@ def runcmd(args, dir = None):
         # print("cwd: %s -> %s" % (olddir, dir))
 
     try:
-        args = [ shlex.quote(str(arg)) for arg in args ]
-        cmd = " ".join(args)
-        # print("cmd: %s" % cmd)
-        proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
+        cmd = [str(arg) for arg in args]
+        print_cmd = shlex.join(cmd)
+        try:
+            proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+        except OSError as exc:
+            status = 127 if exc.errno in (errno.ENOENT, errno.ENOTDIR) else 126
+            raise CmdError(print_cmd, status, "stdout: \nstderr: %s" % exc) from exc
         stdout, stderr = proc.communicate()
         stdout = stdout.decode('utf-8')
         stderr = stderr.decode('utf-8')
         exitstatus = proc.returncode
         if exitstatus != 0:
-            raise CmdError(cmd, exitstatus >> 8, "stdout: %s\nstderr: %s" % (stdout, stderr))
+            raise CmdError(print_cmd, exitstatus, "stdout: %s\nstderr: %s" % (stdout, stderr))
         if " fuzz " in stdout and "Hunk " in stdout:
             # Drop patch fuzz info with header and footer to log file so
             # insane.bbclass can handle to throw error/warning