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2017-08-24Revert "graph: Provide access to the package record in the emit functions."Ludovic Courtès
This reverts commit 5d7e8543659874682b618bba799ba7cd6ffce554, which broke 'tests/graph.scm' and broke node types not related to <package> objects, such as '%reference-node-type'.
2017-08-01graph: Provide access to the package record in the emit functions.Roel Janssen
* guix/graph.scm (export-graph): Pass the node to the emit functions, instead of the node's label.
2017-05-11graph: Add Cypher backend.Roel Janssen
* guix/graph.scm (%cypher-backend): New variable. * doc/guix.texi: Add documentation for the Cypher backend of 'guix graph'.
2016-12-14graph: Add d3js backend.Ricardo Wurmus
* d3.v3.js, graph.js: New files. * Makefile.am (EXTRA_DIST): List them. * guix/graph.scm (%d3js-backend): New variable. (emit-d3js-prologue, emit-d3js-epilogue, emit-d3js-node, emit-d3js-edge): New procedures. (%graph-backends): Add %d3js-backend.
2016-12-14graph: Add "list-backend" and "backend" options.Ricardo Wurmus
* guix/graph.scm (%graph-backends): New variable. * guix/scripts/graph.scm (lookup-backend, list-backends): New procedures. (%options): Add options for "backend" and "list-backends". (show-help): Add help texts for "backend" and "list-backend" options. (%default-options): Add "backend" default. (guix-graph): Pass backend argument to "export-graph". * doc/guix.texi (Invoking guix graph): Document the new options.
2016-12-14graph: Backend must have name and description.Ricardo Wurmus
* guix/graph.scm (<graph-backend>): Add fields "name" and "description". (%graphviz-backend): Provide values for name and description. (export-graph): Ignore name and description when matching backends. (graph-backend-name, graph-backend-description): New procedures. * tests/graph.scm (make-recording-backend): Initialize name and description fields of test graph-backend.
2016-05-24graph: Add 'node-reachable-count'.Ludovic Courtès
* guix/graph.scm (node-reachable-count): New procedure. * tests/graph.scm ("node-reachable-count"): New test.
2016-05-24graph: Expose 'traverse/depth-first'.Ludovic Courtès
* guix/graph.scm (traverse/depth-first): New procedure, based on code formerly in 'node-transitive-edges'. (node-transitive-edges): Rewrite in terms of it.
2016-05-21graph: Allow store file names for 'derivation' and 'references' graphs.Ludovic Courtès
* guix/scripts/graph.scm (%derivation-node-type)[convert]: Add 'derivation-path?' and catch-all clauses. (%reference-node-type)[convert]: Add 'store-path?' and catch-all clauses. (assert-package, nodes-from-package): New procedures. (%package-node-type, %bag-node-type,%bag-with-origins-node-type) (%bag-emerged-node-type): Add 'convert' field (guix-graph): Rename 'packages' to 'items' and allow 'store-path?' arguments. * guix/graph.scm (<node-type>)[convert]: Adjust comment. * doc/guix.texi (Invoking guix graph): Document it.
2016-04-02graph: Edges are colored based on their source node.Ludovic Courtès
* guix/graph.scm (%colors): New variable. (pop-color): New procedure. (emit-edge): Use it.
2015-11-21graph: Add procedures to query a node's edges.Ludovic Courtès
* guix/graph.scm (%node-edges, node-edges, node-back-edges) (node-transitive-edges): New procedures. * tests/graph.scm ("node-edges") ("node-transitive-edges + node-back-edges"): New tests.
2015-11-21Add (guix graph).Ludovic Courtès
* guix/scripts/graph.scm (<node-type>, <graph-backend>, emit-prologue) (emit-epilogue, emit-node, emit-edge, %graphviz-backend, export-graph): Move to... * guix/graph.scm: ... here. New file. * guix/scripts/system.scm, tests/graph.scm: Use it. * Makefile.am (MODULES): Add it.