provision: Add venv dependencies for Centos 7.

scripts/lib/setup_venv.py

@@ -45,6 +45,27 @@ VENV_DEPENDENCIES = [
     "jq",                   # Used by scripts/lib/install-node to check yarn version
 ]
 
+YUM_VENV_DEPENDENCIES = [
+    "libffi-devel",
+    "freetype-devel",
+    "zlib-devel",
+    "libjpeg-turbo-devel",
+    "openldap-devel",
+    "libmemcached-devel",
+    "python34-devel",
+    "python-devel",
+    "python34-pip",
+    "python2-pip",
+    "python-virtualenv",
+    "python34-six",
+    "python-six",
+    "libxml2-devel",
+    "libxslt-devel",
+    "postgresql-libs",  # libpq-dev on apt
+    "openssl-devel",
+    "jq",
+]
+
 codename = parse_lsb_release()["DISTRIB_CODENAME"]
 
 if codename != "trusty":
@@ -60,6 +81,15 @@ THUMBOR_VENV_DEPENDENCIES = [
     "gifsicle",
 ]
 
+YUM_THUMBOR_VENV_DEPENDENCIES = [
+    "libcurl-devel",
+    "libjpeg-turbo-devel",
+    "zlib-devel",
+    "freetype-devel",
+    "libpng-devel",
+    "gifsicle",
+]
+
 def install_venv_deps(requirements_file):
     # type: (str) -> None
     pip_requirements = os.path.join(ZULIP_PATH, "requirements", "pip.txt")

tools/lib/provision.py

@@ -16,7 +16,8 @@ sys.path.append(ZULIP_PATH)
 from scripts.lib.zulip_tools import run, subprocess_text_output, OKBLUE, ENDC, WARNING, \
     get_dev_uuid_var_path, FAIL, parse_lsb_release, file_or_package_hash_updated
 from scripts.lib.setup_venv import (
-    setup_virtualenv, VENV_DEPENDENCIES, THUMBOR_VENV_DEPENDENCIES
+    setup_virtualenv, VENV_DEPENDENCIES, YUM_VENV_DEPENDENCIES,
+    THUMBOR_VENV_DEPENDENCIES, YUM_THUMBOR_VENV_DEPENDENCIES
 )
 from scripts.lib.node_cache import setup_node_modules, NODE_MODULES_CACHE_PATH
 
@@ -153,7 +154,7 @@ COMMON_YUM_DEPENDENCIES = COMMON_DEPENDENCIES + [
     "freetype-devel",
     "fontconfig-devel",
     "libstdc++"
-]
+] + YUM_VENV_DEPENDENCIES + YUM_THUMBOR_VENV_DEPENDENCIES
 
 APT_DEPENDENCIES = {
     "stretch": UBUNTU_COMMON_APT_DEPENDENCIES + [