projects.py: Add command modules

projects.py modules shows either all modules, or modules which have one of the
key-value pairs requested for filtering via the -F option.

Signed-off-by: Jan Lindemann <jan@janware.com>

scripts/projects.py

@@ -10,6 +10,7 @@ import sys
 import argparse
 import pwd
 import time
+import pathlib
 from os.path import isfile
 from os.path import isdir
 from os.path import expanduser
@@ -483,6 +484,38 @@ class Projects(object):
     def cmd_commands(self, args_):
         print(self.commands())
 
+    def cmd_modules(self, args_):
+        proj_root = self.projs_root
+        self.debug("proj_root = " + proj_root)
+        path = pathlib.Path(self.projs_root)
+
+        parser = argparse.ArgumentParser(description='Query existing janware packages')
+
+        parser.add_argument('-F', '--filter', nargs='?', default=None, help='Key-value pairs, seperated by commas, to be searched for in project.conf')
+        args = parser.parse_args(args_)
+        modules = [p.parents[1].name for p in path.glob('*/make/project.conf')]
+        self.debug("modules = ", modules)
+        out = []
+        filters = None if args.filter is None else [re.split("=", f) for f in re.split(",", args.filter)]
+        for m in modules:
+            if filters:
+                for f in filters:
+                    path = f[0].rsplit('.')
+                    if len(path) > 1:
+                        sec = path[0]
+                        key = path[1]
+                    else:
+                        sec = None
+                        key = path[0]
+                    val = self.get_value(m, sec, key)
+                    self.debug('Checking in {} if {}="{}", is "{}"'.format(m, f[0], f[1], val))
+                    if val and val == f[1]:
+                        out.append(m)
+                        break
+            else:
+                out.append(m)
+        print(' '.join(out))
+
     def cmd_build(self, args_):
 
         def read_deps(cur, prereq_type):