From 3c631ee3315344d77e4f64c13c32d5b43f381c38 Mon Sep 17 00:00:00 2001
From: Kyle Meyer <kyle@kyleam.com>
Date: Wed, 18 Nov 2020 00:16:12 -0500
Subject: km/magit-patch-create-series: Move an error closer to its origin

---
 lisp/km-magit.el | 72 ++++++++++++++++++++++++++++----------------------------
 1 file changed, 36 insertions(+), 36 deletions(-)

diff --git a/lisp/km-magit.el b/lisp/km-magit.el
index 0943fe8..3828812 100644
--- a/lisp/km-magit.el
+++ b/lisp/km-magit.el
@@ -879,42 +879,42 @@ appending [M/N] to each entry."
   (setq args (seq-remove
               (lambda (a) (string-match-p "\\`--base=" a))
               args))
-  (if-let ((current (magit-get-current-branch))
-           (upstream (magit-get-upstream-branch current)))
-      (let ((patch-branch (concat "patches/" current)))
-        (if (not (magit-local-branch-p patch-branch))
-            (magit-branch-and-checkout patch-branch current)
-          (magit-update-ref (concat "refs/heads/" patch-branch)
-                            (concat "reset: moving back to " current)
-                            current)
-          (magit-branch-checkout patch-branch))
-        (apply #'magit-run-git "format-patch"
-               upstream (concat "--base=" upstream) args)
-        (let* ((patches (or (seq-filter
-                             (lambda (f) (string-match-p "\\.patch\\'" f))
-                             (magit-untracked-files))
-                            (error "There should be patches")))
-               (cover (seq-find
-                       (lambda (f)
-                         (string-match-p
-                          (rx string-start
-                              (zero-or-one "v" (one-or-more digit) "-")
-                              (one-or-more "0"))
-                          f))
-                       patches)))
-          (magit-call-git "add" patches)
-          (magit-run-git "commit" "-mpatches")
-          (when cover
-            (with-temp-buffer
-              (insert-file-contents cover)
-              (km/magit-tweak-patch-series-summary)
-              (write-region nil nil cover))
-            (magit-call-git "commit" "-mtweak cover" "--" cover))
-          (when cover
-            (find-file-other-window cover)
-            (re-search-forward (rx "Subject: [PATCH" (zero-or-more not-newline) "] "))
-            (setq buffer-read-only nil))))
-    (user-error "No upstream branch")))
+  (let* ((current (magit-get-current-branch))
+         (upstream (or (magit-get-upstream-branch current)
+                       (user-error "No upstream branch")))
+         (patch-branch (concat "patches/" current)))
+    (if (not (magit-local-branch-p patch-branch))
+        (magit-branch-and-checkout patch-branch current)
+      (magit-update-ref (concat "refs/heads/" patch-branch)
+                        (concat "reset: moving back to " current)
+                        current)
+      (magit-branch-checkout patch-branch))
+    (apply #'magit-run-git "format-patch"
+           upstream (concat "--base=" upstream) args)
+    (let* ((patches (or (seq-filter
+                         (lambda (f) (string-match-p "\\.patch\\'" f))
+                         (magit-untracked-files))
+                        (error "There should be patches")))
+           (cover (seq-find
+                   (lambda (f)
+                     (string-match-p
+                      (rx string-start
+                          (zero-or-one "v" (one-or-more digit) "-")
+                          (one-or-more "0"))
+                      f))
+                   patches)))
+      (magit-call-git "add" patches)
+      (magit-run-git "commit" "-mpatches")
+      (when cover
+        (with-temp-buffer
+          (insert-file-contents cover)
+          (km/magit-tweak-patch-series-summary)
+          (write-region nil nil cover))
+        (magit-call-git "commit" "-mtweak cover" "--" cover))
+      (when cover
+        (find-file-other-window cover)
+        (re-search-forward (rx "Subject: [PATCH" (zero-or-more not-newline) "] "))
+        (setq buffer-read-only nil)))))
 
 
 ;;; Copy functions
-- 
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