From 89139428ab71bd93674bf637ada2f8e7817d1be2 Mon Sep 17 00:00:00 2001
From: Ajax <commial@gmail.com>
Date: Wed, 15 Mar 2017 16:44:58 +0100
Subject: [PATCH] Add 'dump' sub-action for `sibyl config`

---
 sibyl/actions/config.py | 28 ++++++++++++++++------------
 sibyl/config.py         | 16 ++++++++++++++++
 2 files changed, 32 insertions(+), 12 deletions(-)

diff --git a/sibyl/actions/config.py b/sibyl/actions/config.py
index 7c99477..c829279 100644
--- a/sibyl/actions/config.py
+++ b/sibyl/actions/config.py
@@ -25,22 +25,26 @@ class ActionConfig(Action):
 
     _name_ = "config"
     _desc_ = "Configuration management"
-    _args_ = [(("-V", "--value"), {"help": "Return the value of a specific option"}),
+    _args_ = [
+        (("-V", "--value"), {"help": "Return the value of a specific option"}),
+        (("-d", "--dump"), {"help": "Dump the current configuration",
+                            "action": "store_true"}),
     ]
 
     def run(self):
-        if not self.args.value:
-            self.show()
-            exit(0)
-
-        if self.args.value.endswith("_keys") and hasattr(config,
-                                                         self.args.value[:-5]):
-            val = getattr(config, self.args.value[:-5]).keys()
-        elif hasattr(config, self.args.value):
-            val = getattr(config, self.args.value)
+        if self.args.dump:
+            print "\n".join(config.dump())
+        elif self.args.value:
+            if self.args.value.endswith("_keys") and hasattr(config,
+                                                             self.args.value[:-5]):
+                val = getattr(config, self.args.value[:-5]).keys()
+            elif hasattr(config, self.args.value):
+                val = getattr(config, self.args.value)
+            else:
+                val = "ERROR"
+            print val
         else:
-            val = "ERROR"
-        print val
+            self.show()
 
     def show(self):
         # Configuration files
diff --git a/sibyl/config.py b/sibyl/config.py
index 416da23..4ee6bbe 100644
--- a/sibyl/config.py
+++ b/sibyl/config.py
@@ -71,6 +71,22 @@ def parse_files(self, files):
             for name in cparser.options("tests"):
                 self.config["tests"][name] = cparser.get("tests", name)
 
+    def dump(self):
+        """Dump the current configuration as a config file"""
+        out = []
+
+        # Find
+        out.append("[find]")
+        out.append("jit_engine = %s" % ",".join(self.config["jit_engine"]))
+
+        # Tests
+        out.append("")
+        out.append("[tests]")
+        for name, path in self.config["tests"].iteritems():
+            out.append("%s = %s" % (name, path))
+
+        return out
+
     @property
     def jit_engine(self):
         """Name of engine to use for jit"""