7 files changed, 11 insertions, 9 deletions

diff --git a/src/luarocks/build.lua b/src/luarocks/build.lua
index 997929a8..98d5dd61 100644
--- a/src/luarocks/build.lua
+++ b/src/luarocks/build.lua
@@ -170,6 +170,7 @@ function build_rockspec(rockspec_file, need_to_fetch, minimal_mode)
          build.type = "builtin"
       end
 
+      local build_type
       ok, build_type = pcall(require, "luarocks.build." .. build.type)
       if not ok or not type(build_type) == "table" then
          return nil, "Failed initializing build back-end for build type '"..build.type.."'"
diff --git a/src/luarocks/fetch.lua b/src/luarocks/fetch.lua
index 407d72c5..5e1f870d 100644
--- a/src/luarocks/fetch.lua
+++ b/src/luarocks/fetch.lua
@@ -285,7 +285,7 @@ function fetch_sources(rockspec, extract, dest_dir)
    assert(type(dest_dir) == "string" or not dest_dir)
 
    local protocol = rockspec.source.protocol
-   local proto
+   local ok, proto
    if protocol == "http" or protocol == "https" or protocol == "ftp" or protocol == "file" then
       proto = require("luarocks.fetch")
    else
diff --git a/src/luarocks/make_manifest.lua b/src/luarocks/make_manifest.lua
index bec1b704..4701a45a 100644
--- a/src/luarocks/make_manifest.lua
+++ b/src/luarocks/make_manifest.lua
@@ -24,7 +24,7 @@ function run(repo)
   
    print("Making manifest for "..repo)
    
-   ok, err = manif.make_manifest(repo)
+   local ok, err = manif.make_manifest(repo)
    if ok then
       print("Generating index.html for "..repo)
       index.make_index(repo)
diff --git a/src/luarocks/pack.lua b/src/luarocks/pack.lua
index 2fa12d9b..800a855e 100644
--- a/src/luarocks/pack.lua
+++ b/src/luarocks/pack.lua
@@ -113,6 +113,7 @@ local function pack_binary_rock(name, version)
    local temp_dir = fs.make_temp_dir("pack")
    fs.copy_contents(prefix, temp_dir)
 
+   local is_binary = false
    if rock_manifest.lib then
       copy_back_files(name, version, rock_manifest.lib, cfg.deploy_lib_dir, dir.path(temp_dir, "lib"))
       is_binary = true
diff --git a/src/luarocks/path.lua b/src/luarocks/path.lua
index 8c5aa0da..4718378e 100644
--- a/src/luarocks/path.lua
+++ b/src/luarocks/path.lua
@@ -269,6 +269,6 @@ function versioned_name(file, prefix, name, version)
    assert(type(version) == "string")
 
    local rest = file:gsub("^"..prefix.."/*", "")
-   name_version = (name.."_"..version):gsub("%-", "_"):gsub("%.", "_")
+   local name_version = (name.."_"..version):gsub("%-", "_"):gsub("%.", "_")
    return dir.path(prefix, name_version.."-"..rest)
 end
diff --git a/src/luarocks/search.lua b/src/luarocks/search.lua
index 0ba9ff43..da69eaff 100644
--- a/src/luarocks/search.lua
+++ b/src/luarocks/search.lua
@@ -37,7 +37,7 @@ local function query_arch_as_table(query)
       query.arch = accept
    elseif format == "string" then
       local accept = {}
-      for a in string.gmatch(query.arch, "[%w_-]+") do
+      for a in query.arch:gmatch("[%w_-]+") do
          accept[a] = true
       end
       query.arch = accept
diff --git a/src/luarocks/util.lua b/src/luarocks/util.lua
index f48bfe1f..ab6ad34f 100644
--- a/src/luarocks/util.lua
+++ b/src/luarocks/util.lua
@@ -273,15 +273,15 @@ function show_table(t, name, indent)
          local info = debug.getinfo(o, "S")
          -- info.name is nil because o is not a calling level
          if info.what == "C" then
-            return string.format("%q", so .. ", C function")
+            return ("%q"):format(so .. ", C function")
          else 
             -- the information is defined through lines
-            return string.format("%q", so .. ", defined in (" .. info.linedefined .. "-" .. info.lastlinedefined .. ")" .. info.source)
+            return ("%q"):format(so .. ", defined in (" .. info.linedefined .. "-" .. info.lastlinedefined .. ")" .. info.source)
          end
       elseif type(o) == "number" then
          return so
       else
-         return string.format("%q", so)
+         return ("%q"):format(so)
       end
    end
    
@@ -307,8 +307,8 @@ function show_table(t, name, indent)
                cart = cart .. " = {\n"
                for k, v in pairs(value) do
                   k = basicSerialize(k)
-                  local fname = string.format("%s[%s]", name, k)
-                  field = string.format("[%s]", k)
+                  local fname = ("%s[%s]"):format(name, k)
+                  field = ("[%s]"):format(k)
                   -- three spaces between levels
                   addtocart(v, fname, indent .. "   ", saved, field)
                end