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dependency-tree analysis: direct and transitive

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Change the script to generate two files.  One including direct
dependencies, the other including direct and transitive dependencies.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
This commit is contained in:
Valentin Rothberg
2019-07-12 11:35:48 +02:00
parent 9ae3e7c1ec
commit 25d63f009d
2 changed files with 14 additions and 5 deletions
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10
dependencies/analyses/README.md vendored
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@ -71,15 +71,17 @@ Running the script can help identify sources of bloat and reveal potential candi
Use the `dependency-tree.sh` script to figure out which package includes which packages.
The output of the script has the format `package: dependency_1, dependency_2, ...`.
Each line is followed by a blank line to make it easier to read.
Note that the list of dependencies includes only the direct dependencies and not all transitive dependencies.
The transitive dependencies of a given package can be examined by running `go list -f '{{ .Name }}: {{ join .Deps ", " }}' $PACKAGE` or by browsing through the output of `dependency-tree.sh`.
The script generates two files:
- `direct-tree.txt` - listing direct dependencies
- `transitive-tree.txt` - listing direct and transitive dependencies
Running such a dependency-tree analysis may look as follows:
```
[libpod]$ ./dependencies/analyses/dependency-tree.sh github.com/containers/libpod > tree.txt
[libpod]$ grep "^github.com/containers/libpod/pkg/registries" tree.txt
[libpod]$ ./dependencies/analyses/dependency-tree.sh github.com/containers/libpod
[libpod]$ grep "^github.com/containers/libpod/pkg/registries" direct-tree.txt
github.com/containers/libpod/pkg/registries: github.com/containers/libpod/vendor/github.com/containers/image/pkg/sysregistriesv2, github.com/containers/libpod/vendor/github.com/containers/image/types, github.com/containers/libpod/pkg/rootless, github.com/containers/libpod/vendor/github.com/docker/distribution/reference, github.com/containers/libpod/vendor/github.com/pkg/errors, os, path/filepath, strings
```

9
dependencies/analyses/dependency-tree.sh vendored
View File

@ -10,4 +10,11 @@ DATA=$(go list $1/... \
| awk '{ printf "%s\n\n", $0 }' \
)
echo "$DATA"
echo "$DATA" > direct-tree.txt
DATA=$(go list $1/... \
| xargs -d '\n' go list -f '{{ .ImportPath }}: {{ join .Deps ", " }}' \
| awk '{ printf "%s\n\n", $0 }' \
)
echo "$DATA" > transitive-tree.txt