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authorLudovic Courtès <ludovic.courtes@inria.fr>2021-09-17 10:13:15 +0200
committerLudovic Courtès <ludo@gnu.org>2021-09-21 15:15:52 +0200
commit5b32ad4f6f555d305659cee825879df075b06331 (patch)
tree41006f22dae8547c5b7a159e52bce284a438f533 /guix/scripts
parentbe32889902abc29c14f3ea9a4f52da1bf9a0383a (diff)
graph: Add '--max-depth'.
* guix/graph.scm (export-graph): Add #:max-depth and honor it, adding 'depths' argument to 'loop'. * guix/scripts/graph.scm (%options, show-help): Add '--max-depth'. (%default-options): Add 'max-depth'. (guix-graph): Pass #:max-depth to 'export-graph'. * tests/graph.scm ("package DAG, limited depth"): New test. * doc/guix.texi (Invoking guix graph): Document it.
Diffstat (limited to 'guix/scripts')
-rw-r--r--guix/scripts/graph.scm11
1 files changed, 10 insertions, 1 deletions
diff --git a/guix/scripts/graph.scm b/guix/scripts/graph.scm
index 66de824ef4..439fae0b52 100644
--- a/guix/scripts/graph.scm
+++ b/guix/scripts/graph.scm
@@ -500,6 +500,10 @@ package modules, while attempting to retain user package modules."
(lambda (opt name arg result)
(alist-cons 'backend (lookup-backend arg)
result)))
+ (option '(#\M "max-depth") #t #f
+ (lambda (opt name arg result)
+ (alist-cons 'max-depth (string->number* arg)
+ result)))
(option '("list-backends") #f #f
(lambda (opt name arg result)
(list-backends)
@@ -538,6 +542,8 @@ Emit a representation of the dependency graph of PACKAGE...\n"))
(display (G_ "
--list-types list the available graph types"))
(display (G_ "
+ --max-depth=DEPTH limit to nodes within distance DEPTH"))
+ (display (G_ "
--path display the shortest path between the given nodes"))
(display (G_ "
-e, --expression=EXPR consider the package EXPR evaluates to"))
@@ -559,6 +565,7 @@ Emit a representation of the dependency graph of PACKAGE...\n"))
(define %default-options
`((node-type . ,%package-node-type)
(backend . ,%graphviz-backend)
+ (max-depth . +inf.0)
(system . ,(%current-system))))
@@ -582,6 +589,7 @@ Emit a representation of the dependency graph of PACKAGE...\n"))
(with-store store
(let* ((transform (options->transformation opts))
+ (max-depth (assoc-ref opts 'max-depth))
(items (filter-map (match-lambda
(('argument . (? store-path? item))
item)
@@ -613,7 +621,8 @@ nodes (given ~a)~%")
(export-graph (concatenate nodes)
(current-output-port)
#:node-type type
- #:backend backend)))
+ #:backend backend
+ #:max-depth max-depth)))
#:system (assq-ref opts 'system)))))
#t)