pmtest: resolve path to scriptlet shell

In order to support a variety of values for the --with-scriptlet-shell
configure flag, pmtest has to be aware of what kind of path was passed,
be it an absolute path or a fragment for a path lookup. For absolute
paths, leave the path alone. For fragments, search the PATH environment
var for the resolved path to the binary. In both cases, join the
resultant path to the root directory defined for the test, not a
pre-determined bin directory.

Fixes FS#31552.

With-contribution-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Allan McRae <allan@archlinux.org>

Makefile.am

@@ -28,6 +28,7 @@ check-local: test-pacman test-pacsort test-vercmp test-parseopts
 test-pacman: test/pacman src/pacman
 	LC_ALL=C $(PYTHON) $(top_srcdir)/test/pacman/pactest.py --debug=1 \
 		--test $(top_srcdir)/test/pacman/tests/*.py \
+		--scriptlet-shell $(SCRIPTLET_SHELL) \
 		-p $(top_builddir)/src/pacman/pacman
 
 test-pacsort: test/util src/util

test/pacman/pactest.py

@@ -3,6 +3,7 @@
 #  pactest : run automated testing on the pacman binary
 #
 #  Copyright (c) 2006 by Aurelien Foret <orelien@chez.com>
+#  Copyright (c) 2006-2013 Pacman Development Team <pacman-dev@archlinux.org>
 #
 #  This program is free software; you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by
@@ -81,6 +82,9 @@ def create_parser():
     parser.add_option("--manual-confirm", action = "store_true",
                       dest = "manualconfirm", default = False,
                       help = "do not use --noconfirm for pacman calls")
+    parser.add_option("--scriptlet-shell", type = "string",
+                      dest = "scriptletshell", default = "sh",
+                      help = "specify shell used for install scriptlets")
     return parser
 
 
@@ -99,6 +103,7 @@ def create_parser():
     env.pacman["gdb"] = opts.gdb
     env.pacman["valgrind"] = opts.valgrind
     env.pacman["manual-confirm"] = opts.manualconfirm
+    env.pacman["scriptlet-shell"] = opts.scriptletshell
 
     if opts.testcases is None or len(opts.testcases) == 0:
         print "no tests defined, nothing to do"

test/pacman/pmenv.py

@@ -66,7 +66,7 @@ def run(self):
             print t.description
             print "----------"*8
 
-            t.generate()
+            t.generate(self.pacman)
 
             t.run(self.pacman)
 

test/pacman/pmtest.py

@@ -1,6 +1,7 @@
 #! /usr/bin/python2
 #
 #  Copyright (c) 2006 by Aurelien Foret <orelien@chez.com>
+#  Copyright (c) 2006-2012 Pacman Development Team <pacman-dev@archlinux.org>
 #
 #  This program is free software; you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by
@@ -102,7 +103,18 @@ def load(self):
         else:
             raise IOError("file %s does not exist!" % self.name)
 
-    def generate(self):
+    def resolve_binary(self, binary):
+        if os.path.isabs(binary):
+            return binary
+
+        for path in os.environ["PATH"].split(':'):
+            resolved = os.path.join(path, binary)
+            if os.path.exists(resolved):
+                return resolved
+
+        return binary
+
+    def generate(self, pacman):
         print "==> Generating test environment"
 
         # Cleanup leftover files from a previous test session
@@ -120,13 +132,18 @@ def generate(self):
         etcdir = os.path.join(self.root, os.path.dirname(util.PACCONF))
         bindir = os.path.join(self.root, "bin")
         sbindir = os.path.join(self.root, "sbin")
-        sys_dirs = [dbdir, cachedir, syncdir, tmpdir, logdir, etcdir, bindir, sbindir]
+        scriptlet_shell = self.resolve_binary(pacman["scriptlet-shell"])
+        shelldir = os.path.join(self.root, os.path.dirname(scriptlet_shell)[1:])
+        sys_dirs = [dbdir, cachedir, syncdir, tmpdir, logdir, etcdir, bindir,
+                    sbindir, shelldir]
         for sys_dir in sys_dirs:
             if not os.path.isdir(sys_dir):
                 vprint("\t%s" % sys_dir[len(self.root)+1:])
                 os.makedirs(sys_dir, 0755)
         # Only the dynamically linked binary is needed for fakechroot
         shutil.copy("/bin/sh", bindir)
+        if scriptlet_shell != "/bin/sh":
+            shutil.copy("/bin/sh", os.path.join(self.root, scriptlet_shell[1:]))
         shutil.copy(os.path.join(util.SELFPATH, "ldconfig.stub"),
             os.path.join(sbindir, "ldconfig"))
         ld_so_conf = open(os.path.join(etcdir, "ld.so.conf"), "w")