reduce number of opts for functions, and allow links with .git at the end

eatit.lua

@@ -37,11 +37,12 @@ local function logwrite(string)
   end
 end
 
-local function clonegit(pluginlink)
-    logwrite('downloading ' .. pluginlink)
+-- get the requested git repos
+local function clonegit(i)
+    logwrite('downloading ' .. plugins[i][1])
 
     -- construct the git cmd
-    local cmd = 'git -C ' .. opts.dl.dir .. ' clone ' .. pluginlink
+    local cmd = 'git -C ' .. opts.dl.dir .. ' clone ' .. plugins[i][1]
 
     -- run the command and get the result for logging
     local run = io.popen(cmd)
@@ -51,15 +52,16 @@ local function clonegit(pluginlink)
     run:close()
 end
 
-local function checkupdates(i, pluginfile, pluginlink)
+-- check for updates
+local function checkupdates(i)
   local plugdir = opts.dl.dir .. '/' ..
-    string.match(pluginlink, '/([^/]+)$')
+    string.match(plugins[i][1], '/([^/]+)$'):gsub('.git', '')
 
-  local localhashcmd = 'cd ' .. plugdir ..
-    '; git log -1 --format=format:"%H"'
+  local localhashcmd = 'git -C ' .. plugdir .. ' log -1 --format=format:"%H"'
 
-  local remotehashcmd = 'cd ' .. plugdir ..
-    '; git log -n 1 $(git branch -r | head -1 | cut -d " " -f 3)' ..
+  local remotehashcmd = 'git -C ' .. plugdir ..
+    ' log -n 1 $(git -C ' .. plugdir ..
+    ' branch -r | head -1 | cut -d " " -f 3)' ..
     ' | head -1 | cut -d " " -f 2'
 
   local a = io.popen(localhashcmd)
@@ -71,10 +73,9 @@ local function checkupdates(i, pluginfile, pluginlink)
   a:close()
 
   if localhash ~= remotehash then
-    logwrite(plugins[i]['file'] .. ' is updating.')
-    clonegit(pluginlink)
+    return true
   else
-    logwrite(plugins[i]['file'] .. ' is up to date!')
+    return false
   end
 end
 
@@ -97,7 +98,7 @@ local function startinstall()
 
     -- get the file's dir
     local pluginfile = opts.dl.dir .. '/' ..
-      string.match(plugins[i][1], '/([^/]+)$') ..
+      string.match(plugins[i][1], '/([^/]+)$'):gsub('.git', '') ..
       '/' .. plugins[i]['file']
 
     -- get the dest dir
@@ -106,9 +107,15 @@ local function startinstall()
       '/' .. plugins[i]['file']
 
     if fileexists(pluginfile) then
-      checkupdates(i, pluginfile, plugins[i][1])
+      -- if we need to update, update
+      if checkupdates(i) then
+        logwrite(plugins[i]['file'] .. ' is updating.')
+        clonegit(i)
+      else
+        logwrite(plugins[i]['file'] .. ' is up to date!')
+      end
     else
-      clonegit(plugins[i][1])
+      clonegit(i)
     end
 
     -- copy the file contents over to the desired location