Move mindependency and latestdependency common dependencies to a file (Azure#16365)

* move mindependency and latestdependency common pieces to eng/dependency_tools.txt

Author: scbedd

eng/dependency_tools.txt

@@ -0,0 +1 @@
+../../../tools/azure-sdk-tools

eng/tox/tox.ini

@@ -21,20 +21,19 @@ deps =
   -rdev_requirements.txt
   {[tools]deps}
 
-
+[dependencytools]
+deps =
+    -r ../../../eng/dependency_tools.txt
 
 [packaging]
 pkgs = 
     wheel==0.34.2
     packaging==20.4
 
-
 [testenv]
 ignore_args=--ignore=.tox --ignore=build --ignore=.eggs
 default_pytest_params = --junitxml={toxinidir}/test-junit-{envname}.xml --verbose --durations=10 --ignore=azure {[testenv]ignore_args}
 parallel_show_output =True
-pre-deps =
-  {[packaging]pkgs}
 skip_install = true
 skipsdist = true
 usedevelop = false
@@ -179,8 +178,6 @@ commands =
 
 
 [testenv:devtest]
-pre-deps =
-  {[packaging]pkgs}
 deps = {[base]deps}
 changedir = {toxinidir}
 commands = 
@@ -203,10 +200,11 @@ commands =
 
 
 [testenv:latestdependency]
-pre-deps =
-  {[packaging]pkgs}
-deps = {[tools]deps}
-changedir = {toxinidir}
+deps = 
+  {[dependencytools]deps}
+  {[tools]deps}
+changedir = 
+  {toxinidir}
 passenv = *
 setenv =
   DEPENDENCY_TYPE=Latest
@@ -215,12 +213,11 @@ commands =
 
 
 [testenv:mindependency]
-pre-deps =
-  {[packaging]pkgs}
 deps = 
   azure-mgmt-keyvault<7.0.0
   azure-mgmt-resource<15.0.0
   azure-mgmt-storage<15.0.0
+  {[dependencytools]deps}
   {[tools]deps}
 changedir = {toxinidir}
 passenv = *

scripts/devops_tasks/tox_harness.py

@@ -36,7 +36,7 @@
 DEFAULT_TOX_INI_LOCATION = os.path.join(root_dir, "eng/tox/tox.ini")
 IGNORED_TOX_INIS = ["azure-cosmos"]
 test_tools_path = os.path.join(root_dir, "eng", "test_tools.txt")
-
+dependency_tools_path = os.path.join(root_dir, "eng", "dependency_tools.txt")
 
 class ToxWorkItem:
     def __init__(self, target_package_path, tox_env, options_array):
@@ -376,6 +376,7 @@ def prep_and_run_tox(targeted_packages, parsed_args, options_array=[]):
         if in_ci():
             replace_dev_reqs(destination_dev_req, package_dir)
             replace_dev_reqs(test_tools_path, package_dir)
+            replace_dev_reqs(dependency_tools_path, package_dir)
             os.environ["TOX_PARALLEL_NO_SPINNER"] = "1"
 
         inject_custom_reqs(