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01/05: guix graph: 'guix graph --path' correctly handles multiple output


From: guix-commits
Subject: 01/05: guix graph: 'guix graph --path' correctly handles multiple outputs.
Date: Sun, 15 Jan 2023 18:09:43 -0500 (EST)

civodul pushed a commit to branch master
in repository guix.

commit a4a35e123b7caac76271c9267ca19ae82ec1d028
Author: Ludovic Court├Ęs <ludo@gnu.org>
AuthorDate: Fri Jan 13 23:31:16 2023 +0100

    guix graph: 'guix graph --path' correctly handles multiple outputs.
    
    Previously, "guix graph -t references --path guix guile" would fail
    with:
    
      error: '--path' option requires exactly two nodes (given 2)
    
    This is because '_' in the 'match' clause wouldn't match the
    placeholder and would instead be interested as a variable name, thereby
    meaning NODES is expected to have two lists with the same tail.
    
    * guix/scripts/graph.scm (guix-graph): Rename '_' in 'mlet' to '_g' so
    that the literal '_' used in 'match' below matches.
---
 guix/scripts/graph.scm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/guix/scripts/graph.scm b/guix/scripts/graph.scm
index 2f102180c9..b31cc0014d 100644
--- a/guix/scripts/graph.scm
+++ b/guix/scripts/graph.scm
@@ -598,7 +598,7 @@ Emit a representation of the dependency graph of 
PACKAGE...\n"))
 
         (run-with-store store
           ;; XXX: Since grafting can trigger unsolicited builds, disable it.
-          (mlet %store-monad ((_     (set-grafting #f))
+          (mlet %store-monad ((_g    (set-grafting #f))
                               (nodes (mapm %store-monad
                                            (node-type-convert type)
                                            (reverse items))))



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