bug#26987: [PATCH 2/2] build: pull: Fix compilation list construction.

[Mathieu Othacehe <m.othacehe@gmail.com>]

* guix/build/pull.scm (depends-on-guile-ssh?): Remove.
(all-scheme-files): Use "scheme-modules" to detect all loadable
modules in given directory and rebuild a file list from those modules.
---
 guix/build/pull.scm | 31 ++++++++-----------------------
 1 file changed, 8 insertions(+), 23 deletions(-)

diff --git a/guix/build/pull.scm b/guix/build/pull.scm
index d2e0404b1..e6ec71a54 100644
--- a/guix/build/pull.scm
+++ b/guix/build/pull.scm
@@ -1,6 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2013, 2014, 2016, 2017 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2015 Taylan Ulrich Bayırlı/Kammer <taylanbayirli@gmail.com>
+;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -36,26 +37,14 @@
 ;;;
 ;;; Code:
 
-(define (depends-on-guile-ssh? file)
-  "Return true if FILE is a Scheme source file that depends, directly or
-indirectly, on Guile-SSH."
-  (find (match-lambda
-          (('ssh _ ...) #t)
-          (_ #f))
-        (source-module-closure file #:select? (const #t))))
-
 (define (all-scheme-files directory)
   "Return a sorted list of Scheme files found in DIRECTORY."
-  ;; Load guix/ modules before gnu/ modules to get somewhat steadier
-  ;; progress reporting.
-  (sort (filter (cut string-suffix? ".scm" <>)
-                (find-files directory "\\.scm"))
-        (let ((guix (string-append directory "/guix"))
-              (gnu  (string-append directory "/gnu")))
-          (lambda (a b)
-            (or (and (string-prefix? guix a)
-                     (string-prefix? gnu  b))
-                (string<? a b))))))
+  (let ((modules (map module-name
+		      ((@@ (guix discovery) scheme-modules) directory))))
+    (map (lambda (module)
+           (string-append directory "/"
+                          (module-name->file-name module)))
+        modules)))
 
 (cond-expand
   (guile-2.2 (use-modules (language tree-il optimize)
@@ -145,11 +134,7 @@ containing the source code.  Write any debugging output to DEBUG-PORT."
     ;; Compile the .scm files.  Load all the files before compiling them to
     ;; work around <http://bugs.gnu.org/15602> (FIXME).
     ;; Filter out files depending on Guile-SSH when Guile-SSH is missing.
-    (let* ((files (remove (if (false-if-exception
-                               (resolve-interface '(ssh session)))
-                              (const #f)
-                              depends-on-guile-ssh?)
-                          (all-scheme-files out)))
+    (let* ((files (all-scheme-files out))
            (total (length files)))
       (let loop ((files files)
                  (completed 0))
-- 
2.13.0