vim-patch.sh: Add support for sociomatic/git-hub

scripts/vim-patch.sh

@@ -198,9 +198,28 @@ get_vim_patch() {
   echo "  for more information."
 }
 
+hub_pr() {
+  hub pull-request -m "$1"
+}
+
+git_hub_pr() {
+  git hub pull new -m "$1"
+}
+
 submit_pr() {
   require_executable git
-  require_executable hub
+  local push_first
+  push_first=1
+  local submit_fn
+  if check_executable hub; then
+    submit_fn="hub_pr"
+  elif check_executable git-hub; then
+    push_first=0
+    submit_fn="git_hub_pr"
+  else
+    >&2 echo "${BASENAME}: 'hub' or 'git-hub' not found in PATH or not executable."
+    exit 1
+  fi
 
   cd "${NEOVIM_SOURCE_DIR}"
   local checked_out_branch
@@ -223,14 +242,17 @@ submit_pr() {
   local pr_message
   pr_message="$(printf '[RFC] vim-patch:%s\n\n%s\n' "${pr_title#,}" "${pr_body}")"
 
-  echo "Pushing to 'origin/${checked_out_branch}'."
-  output="$(git push origin "${checked_out_branch}" 2>&1)" &&
-    echo "✔ ${output}" ||
-    (echo "✘ ${output}"; git reset --soft HEAD^1; false)
+  if [[ $push_first -ne 0 ]]; then
+    echo "Pushing to 'origin/${checked_out_branch}'."
+    output="$(git push origin "${checked_out_branch}" 2>&1)" &&
+      echo "✔ ${output}" ||
+      (echo "✘ ${output}"; git reset --soft HEAD^1; false)
+
+    echo
+  fi
 
-  echo
   echo "Creating pull request."
-  output="$(hub pull-request -F - 2>&1 <<< "${pr_message}")" &&
+  output="$(${submit_fn} "${pr_message}" 2>&1)" &&
     echo "✔ ${output}" ||
     (echo "✘ ${output}"; false)