Pass http proxy settings through to bazel runners (#3246)

Required in order for environments that cannot otherwise egress to run
Xcode project generation without setting `--repo_env=HTTPS_PROXY=...`
etc in a bazelrc.

Signed-off-by: Aaron Sky <[email protected]>

Author: aaronsky

xcodeproj/internal/templates/bazel_build.sh

@@ -69,6 +69,12 @@ readonly allowed_vars=(
   "BUILD_WORKSPACE_DIRECTORY"
   "DEVELOPER_DIR"
   "HOME"
+  "HTTP_PROXY"
+  "http_proxy"
+  "HTTPS_PROXY"
+  "https_proxy"
+  "NO_PROXY"
+  "no_proxy"
   "SSH_AUTH_SOCK"
   "TERM"
   "USER"

xcodeproj/internal/templates/runner.sh

@@ -204,6 +204,12 @@ fi
 readonly allowed_vars=(
   "BUILD_WORKSPACE_DIRECTORY"
   "HOME"
+  "HTTP_PROXY"
+  "http_proxy"
+  "HTTPS_PROXY"
+  "https_proxy"
+  "NO_PROXY"
+  "no_proxy"
   "SSH_AUTH_SOCK"
   "TERM"
   "USER"