remove uuid (#101)

* remove uuid

* Address CI issues

* More fixes

* use rmtree to remove dir

* ignore errors

* remove new attribute from function

* revert tmp dir change

* remove unused import

Author: JehandadKhan

cget/package.py

@@ -1,4 +1,4 @@
-import base64, copy, argparse, six
+import base64, copy, argparse, six, hashlib
 
 def encode_url(url):
     x = six.b(url[url.find('://')+3:])
@@ -30,6 +30,18 @@ def get_src_dir(self):
         if self.url.startswith('file://'):
             return self.url[7:] # Remove "file://"
         raise TypeError()
+    def get_hash(self):
+        str2hash = lambda x : hashlib.sha256(x.encode('utf-8')).hexdigest()
+        name_h = self.name if self.name is not None else 'NoneName'
+        name_h = str2hash(name_h)
+        url_h = self.url if self.url is not None else 'NoneURL'
+        url_h = str2hash(url_h)
+        fname_h = self.fname if self.fname is not None else 'NoneFName'
+        fname_h = str2hash(fname_h)
+        recipe_h = self.recipe if self.recipe is not None else 'NoneRecipe'
+        recipe_h = str2hash(recipe_h)
+        total_h = name_h + url_h + fname_h + recipe_h
+        return hashlib.sha256(total_h.encode('utf-8')).hexdigest()
 
 
 def fname_to_pkg(fname):

cget/prefix.py

@@ -1,4 +1,4 @@
-import os, shutil, shlex, six, inspect, click, contextlib, uuid, sys, functools
+import os, shutil, shlex, six, inspect, click, contextlib, sys, functools
 
 from cget.builder import Builder
 from cget.package import fname_to_pkg
@@ -312,7 +312,7 @@ def install(self, pb, test=False, test_all=False, generator=None, update=False,
             self.write_parent(pb, track=track)
             if update: self.remove(pb)
             else: return "Package {} already installed".format(pb.to_name())
-        with self.create_builder(uuid.uuid4().hex, tmp=True) as builder:
+        with self.create_builder(pb.pkg_src.get_hash(), tmp=True) as builder:
             # Fetch package
             src_dir = builder.fetch(pb.pkg_src.url, pb.hash, (pb.cmake != None), insecure=insecure)
             # Install any dependencies first