From b396e8273f2ed50a5a944c9f01ac791c2edd36ff Mon Sep 17 00:00:00 2001
From: Dennis Gilmore <dennis@ausil.us>
Date: Apr 27 2017 15:30:54 +0000
Subject: Merge #608 `Add exact Requires to depsolving log`


---

diff --git a/pungi/gather.py b/pungi/gather.py
index 20cc33d..46f7873 100644
--- a/pungi/gather.py
+++ b/pungi/gather.py
@@ -99,6 +99,31 @@ class MyConfigParser(ConfigParser.ConfigParser):
         return optionstr
 
 
+FLAGS = {
+    'EQ': '=',
+    'GE': '>=',
+    'LE': '<=',
+    'GT': '>',
+    'LT': '<',
+}
+
+
+class Req(object):
+    """A wrapper for a tuple representing a Requires tag.
+
+    Only useful for formatting the value into a human readable string.
+    """
+    def __init__(self, req):
+        self.r, self.f, self.v = req
+
+    def __str__(self):
+        if self.f and self.v:
+            flag = FLAGS.get(self.f, '??')
+            version = '%s:%s-%s' % self.v
+            return '%s %s %s' % (self.r, flag, version)
+        return self.r
+
+
 class PungiBase(object):
     """The base Pungi class.  Set up config items and logging here"""
 
@@ -636,7 +661,8 @@ class Pungi(PungiBase):
 
                 for dep in deps:
                     if dep not in added:
-                        msg = 'Added %s.%s (repo: %s) for %s.%s' % (dep.name, dep.arch, dep.repoid, po.name, po.arch)
+                        msg = 'Added %s.%s (repo: %s) for %s.%s (Requires: %s)' % (
+                            dep.name, dep.arch, dep.repoid, po.name, po.arch, Req(req))
                         self.add_package(dep, msg)
                         added.add(dep)
 
diff --git a/pungi/gather_dnf.py b/pungi/gather_dnf.py
index fb11b63..dbf5491 100644
--- a/pungi/gather_dnf.py
+++ b/pungi/gather_dnf.py
@@ -259,7 +259,7 @@ class Gather(GatherBase):
                 return [i for i in multilib_pkgs if i.sourcerpm == match.sourcerpm]
         return [match]
 
-    def _add_packages(self, packages, pulled_by=None, reason=None):
+    def _add_packages(self, packages, pulled_by=None, req=None, reason=None):
         added = set()
         for i in packages:
             assert i is not None
@@ -268,6 +268,8 @@ class Gather(GatherBase):
                 pb = ""
                 if pulled_by:
                     pb = " (pulled by %s, repo: %s)" % (pulled_by, pulled_by.repo.id)
+                if req:
+                    pb += " (Requires: %s)" % req
                 if reason:
                     pb += " (%s)" % reason
                 self.logger.debug("Added package %s%s" % (i, pb))
@@ -279,8 +281,11 @@ class Gather(GatherBase):
         self.result_binary_packages.update(added)
 
     def _get_package_deps(self, pkg):
-        """
-        Return all direct (1st level) deps for a package.
+        """Return all direct (1st level) deps for a package.
+
+        The return value is a set of tuples (pkg, reldep). Each package is
+        tagged with the particular reldep that pulled it in. Requires_pre and
+        _post are not distinguished.
         """
         assert pkg is not None
         result = set()
@@ -295,7 +300,7 @@ class Gather(GatherBase):
         for req in requires:
             deps = self.finished_get_package_deps_reqs.setdefault(str(req), set())
             if deps:
-                result.update(deps)
+                result.update((dep, req) for dep in deps)
                 continue
 
             # TODO: need query also debuginfo
@@ -303,7 +308,7 @@ class Gather(GatherBase):
             if deps:
                 deps = self._get_best_package(deps, req=req)
                 self.finished_get_package_deps_reqs[str(req)].update(deps)
-                result.update(deps)
+                result.update((dep, req) for dep in deps)
 
         return result
 
@@ -434,9 +439,9 @@ class Gather(GatherBase):
 
             if pkg not in self.finished_add_binary_package_deps:
                 deps = self._get_package_deps(pkg)
-                for i in deps:
+                for i, req in deps:
                     if i not in self.result_binary_packages:
-                        self._add_packages([i], pulled_by=pkg, reason='binary-dep')
+                        self._add_packages([i], pulled_by=pkg, req=req, reason='binary-dep')
                         added.add(i)
                 self.finished_add_binary_package_deps[pkg] = deps
 
@@ -492,10 +497,10 @@ class Gather(GatherBase):
                 deps = self.finished_add_source_package_deps[pkg]
             except KeyError:
                 deps = self._get_package_deps(pkg)
-                self.finished_add_source_package_deps[pkg] = deps
-                for i in deps:
+                self.finished_add_source_package_deps[pkg] = set(dep for (dep, req) in deps)
+                for i, req in deps:
                     if i not in self.result_binary_packages:
-                        self._add_packages([i], pulled_by=pkg, reason='source-dep')
+                        self._add_packages([i], pulled_by=pkg, req=req, reason='source-dep')
                         added.add(i)
                         self._set_flag(pkg, PkgFlag.self_hosting)