From ae0a9d9f95d4c7fd19fcadcd0a2b628716003d6a Mon Sep 17 00:00:00 2001
From: Dan Winship <danw@gnome.org>
Date: Fri, 29 Feb 2008 12:45:08 -0500
Subject: [PATCH] implement file dependencies for installs

removes are trickier because there are no backlinks from the files array
the properties array, so there's currently no way to efficiently determine
what packages are affected by the removal of a particular file
---
 razor.c |   32 ++++++++++++++++++++++++++------
 1 files changed, 26 insertions(+), 6 deletions(-)

diff --git a/razor.c b/razor.c
index 97c88b2..d7cace6 100644
--- a/razor.c
+++ b/razor.c
@@ -1785,8 +1785,9 @@ provider_satisfies_requirement(struct razor_property *provider,
 }
 
 static int
-find_provider(struct razor_set *set, struct razor_property *requirement,
-	      const char *requirement_strings)
+find_property_provider(struct razor_set *set,
+		       struct razor_property *requirement,
+		       const char *requirement_strings)
 {
 	struct razor_property *props = set->properties.data;
 	int p, hi, lo, cmp;
@@ -1842,6 +1843,29 @@ find_provider(struct razor_set *set, struct razor_property *requirement,
 	return -1;
 }
 
+static int
+find_file_provider(struct razor_set *set, const char *filename)
+{
+	struct razor_entry *entry;
+
+	entry = find_entry(set, set->files.data, filename);
+	if (entry)
+		return list_first(&entry->packages, &set->package_pool)->data;
+	else
+		return -1;
+}
+
+static int
+find_provider(struct razor_set *set, struct razor_property *requirement,
+	      const char *requirement_strings)
+{
+	const char *name = &requirement_strings[requirement->name];
+	if (*name == '/')
+		return find_file_provider(set, name);
+	else
+		return find_property_provider(set, requirement, requirement_strings);
+}
+
 static void
 gather_new_requires(struct razor_set *system, struct razor_set *upstream,
 		    struct razor_package *pkg, struct array *new_requires)
@@ -1894,10 +1918,6 @@ razor_transaction_satisfy_installs(struct razor_transaction *trans,
 
 		new_end = new_requires.data + new_requires.size;
 		for (new = new_requires.data; new < new_end; new++) {
-			/* FIXME */
-			if (pool[props[*new].name] == '/')
-				continue;
-
 			provider = find_provider(trans->upstream,
 						 &props[*new], pool);
 			already = find_transaction_package(package_array,
-- 
1.7.1