scratch/package-vc-fixes 8956d833b3 12/14: Fix generation of documentation for source packages

[Philip Kaludercic]

branch: scratch/package-vc-fixes
commit 8956d833b3b5652d0e0360ba0692d9c326bd1eb1
Author: Philip Kaludercic <philipk@posteo.net>
Commit: Philip Kaludercic <philipk@posteo.net>

    Fix generation of documentation for source packages
    
    * lisp/emacs-lisp/package-vc.el (package-vc--build-documentation):
    Call "makeinfo" before "install-info"
---
 lisp/emacs-lisp/package-vc.el | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/lisp/emacs-lisp/package-vc.el b/lisp/emacs-lisp/package-vc.el
index 5d6d649dbc..f8948905ea 100644
--- a/lisp/emacs-lisp/package-vc.el
+++ b/lisp/emacs-lisp/package-vc.el
@@ -359,7 +359,11 @@ asynchronously."
   "Build documentation for package PKG-DESC from documentation source in FILE.
 FILE can be an Org file, indicated by its \".org\" extension,
 otherwise it's assumed to be an Info file."
-  (let ((pkg-dir (package-desc-dir pkg-desc)))
+  (let* ((pkg-name (package-desc-name pkg-desc))
+         (pkg-dir (package-desc-dir pkg-desc))
+         (output (file-name-concat
+                  (format "%s.info" pkg-name)
+                  pkg-dir)))
     (when (string-match-p "\\.org\\'" file)
       (require 'ox)
       (require 'ox-texinfo)
@@ -367,8 +371,10 @@ otherwise it's assumed to be an Info file."
         (insert-file-contents file)
         (setq file (make-temp-file "ox-texinfo-"))
         (org-export-to-file 'texinfo file)))
+    (call-process "makeinfo" nil nil nil
+                  "--no-split" file "-o" output)
     (call-process "install-info" nil nil nil
-                  file pkg-dir)))
+                  output pkg-dir)))
 
 (defun package-vc--unpack-1 (pkg-desc pkg-dir)
   "Prepare PKG-DESC that is already checked-out in PKG-DIR.