From 3d961b9a1f129b1d1be98b4e50d6dafd7888097a Mon Sep 17 00:00:00 2001
From: Massimiliano Culpo <massimiliano.culpo@gmail.com>
Date: Tue, 27 Dec 2022 15:25:53 +0100
Subject: spack graph: rework to use Jinja templates and builders (#34637)

`spack graph` has been reworked to use:

- Jinja templates
- builder objects to construct the template context when DOT graphs are requested.

This allowed to add a new colored output for DOT graphs that highlights both
the dependency types and the nodes that are needed at runtime for a given spec.
---
 share/spack/spack-completion.bash    |  2 +-
 share/spack/templates/misc/graph.dot | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 34 insertions(+), 1 deletion(-)
 create mode 100644 share/spack/templates/misc/graph.dot

(limited to 'share')

diff --git a/share/spack/spack-completion.bash b/share/spack/spack-completion.bash
index 028ec16bee..83fb689028 100755
--- a/share/spack/spack-completion.bash
+++ b/share/spack/spack-completion.bash
@@ -1140,7 +1140,7 @@ _spack_gpg_publish() {
 _spack_graph() {
     if $list_options
     then
-        SPACK_COMPREPLY="-h --help -a --ascii -d --dot -s --static -i --installed --deptype"
+        SPACK_COMPREPLY="-h --help -a --ascii -d --dot -s --static -c --color -i --installed --deptype"
     else
         _all_packages
     fi
diff --git a/share/spack/templates/misc/graph.dot b/share/spack/templates/misc/graph.dot
new file mode 100644
index 0000000000..488aa6be1b
--- /dev/null
+++ b/share/spack/templates/misc/graph.dot
@@ -0,0 +1,33 @@
+digraph G {
+  labelloc = "b"
+  rankdir = "TB"
+  ranksep = "1"
+  edge[
+     penwidth=2
+  ]
+  node[
+     fontname=Monaco,
+     penwidth=4,
+     fontsize=24,
+     margin=.4,
+     shape=box,
+     fillcolor=lightblue,
+     style="rounded,filled"
+  ]
+
+{% for node, node_options in nodes %}
+{% if node_options %}
+  "{{ node }}" {{ node_options }}
+{% else %}
+  "{{ node }}"
+{% endif %}
+{% endfor %}
+{% for edge_parent, edge_child, edge_options in edges %}
+{% if edge_options %}
+  "{{ edge_parent }}" -> "{{ edge_child }}" {{ edge_options }}
+{% else %}
+  "{{ edge_parent }}" -> "{{ edge_child }}"
+{% endif %}
+{% endfor %}
+
+}
\ No newline at end of file
-- 
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