Core modules reorganization.

Isolate all modules used by luarocks.loader in a
luarocks.core.* namespace. Core modules can only require
other core modules, and they only use require() at the
top-level chunk. In other words, after luarocks.loader
is setup, package.path can be altered at will and it
should not affect the ability of luarocks.loader to run,
and the luarocks.loader modules should not interfere
with modules loaded later.

This was motivated by @robooo's GSoC work on porting
the LuaRocks test suite to Lua using Busted. Busted itself
runs using luarocks.loader, and we need to ensure that
the modules loaded by the tests do not conflict with
the ones used by luarocks.loader.

A circular dependency between luarocks.manif and
luarocks.search was removed by creating a separate
luarocks.manif.writer module.

Also, luarocks-admin commands were moved to a
luarocks.admin.* namespace.

2 files changed, 6 insertions, 6 deletions

diff --git a/src/bin/luarocks b/src/bin/luarocks
index be6c2b81..21f17da9 100755
--- a/src/bin/luarocks
+++ b/src/bin/luarocks
@@ -1,7 +1,7 @@
 #!/usr/bin/env lua
 
 -- this should be loaded first.
-local cfg = require("luarocks.cfg")
+local cfg = require("luarocks.core.cfg")
 
 local loader = require("luarocks.loader")
 local command_line = require("luarocks.command_line")
diff --git a/src/bin/luarocks-admin b/src/bin/luarocks-admin
index 2890d1f1..660c0a70 100755
--- a/src/bin/luarocks-admin
+++ b/src/bin/luarocks-admin
@@ -1,7 +1,7 @@
 #!/usr/bin/env lua
 
 -- this should be loaded first.
-local cfg = require("luarocks.cfg")
+local cfg = require("luarocks.core.cfg")
 
 local loader = require("luarocks.loader")
 local command_line = require("luarocks.command_line")
@@ -10,10 +10,10 @@ program_description = "LuaRocks repository administration interface"
 
 commands = {
    help = "luarocks.help",
-   make_manifest = "luarocks.make_manifest",
-   add = "luarocks.add",
-   remove = "luarocks.admin_remove",
-   refresh_cache = "luarocks.refresh_cache",
+   make_manifest = "luarocks.admin.make_manifest",
+   add = "luarocks.admin.add",
+   remove = "luarocks.admin.remove",
+   refresh_cache = "luarocks.admin.refresh_cache",
 }
 
 command_line.run_command(...)