Refactors allpaths to print an adjacency list from "from" to "to", instead of
just the nodes. This allows other tools like modgraphviz to print the subgraph.
For example, the following command:
cd $GOPATH/src/cloud.google.com/go && \
go mod graph | \
digraph allpaths cloud.google.com/go golang.org/x/text@v0.3.2 | \
modgraphviz | \
dot -Tpng -o graph.png
Generates the following graph.png: https://user-images.githubusercontent.com/3584893/60481727-df0a8680-9c4b-11e9-8df9-c581d599edd1.png
Also splits out the allpaths tests into their own test, and adds many test
cases.
This is a breaking change. The previous behavior returned vertices; now it
returns edges. If you relied on the previous behavior, use:
my-application | digraph allpaths <from> <to> | digraph nodes
Change-Id: I2eb7c377f5fe1e1e90c5b74eaa78d5211192bb2a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/184337
Reviewed-by: Alan Donovan <adonovan@google.com>
- Move verbose usage docs to godoc, replace usage with terse description of
usage and commands.
- Add copyrights.
- Update usage to more canonical function format instead of const format.
Change-Id: I30d072f391bbf9911798e90efb85cd5351d99205
Reviewed-on: https://go-review.googlesource.com/c/tools/+/184177
Run-TryBot: Alan Donovan <adonovan@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
Also switch usage printing to using stderr always, as is common for Go
tools.
Change-Id: I240da4344fe6b51a418c0d4b0b7d7e7d5614c1d7
Reviewed-on: https://go-review.googlesource.com/129776
Reviewed-by: Alan Donovan <adonovan@google.com>
Such messages are more informative when the error occurs deep within a script.
Also: add tool name to digraph's usage messages.
LGTM=gri
R=gri
CC=golang-codereviews
https://golang.org/cl/173380043
Rewrite performed with this command:
sed -i '' 's_code.google.com/p/go\._golang.org/x/_g' \
$(grep -lr 'code.google.com/p/go.' *)
LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/170920043
Example: show the transitive closure of imports of the digraph tool itself:
% go list -f '{{.ImportPath}}{{.Imports}}' ... | tr '[]' ' ' |
digraph forward code.google.com/p/go.tools/cmd/digraph
+ basic test.
LGTM=gri
R=gri, sameer
CC=golang-codereviews
https://golang.org/cl/161760043
