This repository computes various graph metrics for npm dependencies.
git clone https://github.com/anvaka/npmrank.git
cd npmrank
npm install
Download the npm graph from npm:
./01_get_graph.sh
This will download graph from skimdb and save it to data folder. As of
September 2016 this data is about 500MB. Convert it to ngraph.graph format
for further analysis:
node --max-old-space-size=4096 convertToGraph.js
You are ready to analyze the graph.
node --max-old-space-size=4096 computeStats.js ./data/dependenciesGraph.out.graph 100 > sample/dependencies.md
node --max-old-space-size=4096 computeStats.js ./data/devDependencies.out.graph 100 > sample/devdependencies.md
node --max-old-space-size=4096 computeStats.js ./data/allDependencies.out.graph 100 > sample/alldependencies.md
These commands analyze and print top 100 entries for the following metrics:
- Indegree - most dependent upon packages. Demo
- Outdegree - packages with highest number of dependencies. Demo
- Pagerank - rough estimate of package importance, based on number of dependents/dependencies. Demo
- Hubs and Authorities - alternative importance classification, also based on number of edges. Demo
The following line will compute number of unique packages, that depend on packages created and maintained by a given user (in this case it's @thlorenz):
node --max-old-space-size=4096 ./countAuthorDeps.js thlorenz
You can also count total dependents for a given search query. E.g. this will count number of packages that depend on either underscore or lodash:
node --max-old-space-size=4096 countTotalDeps.js "^(lodash|underscore)$"
NOTE: Total dependents means all transitive dependents as well (i.e. dependents of dependents, and so on).
To count which versions depend on your package you can use countVersions.js
utility:
node --max-old-space-size=4096 countVersions.js jquery
To get list of packages grouped by version pass --print-names argument:
node --max-old-space-size=4096 countVersions.js ngraph.graph --print-names
To further narrow down this list and print only those deps that could receive a certain semver range, pass --semver argument. E.g.:
node --max-old-space-size=4096 countVersions.js lodash --semver='3.9.x'
node --max-old-space-size=4096 soundsLike.js packageName [maxDistance=3]
Where
packageName [required] - name that you are investigating
maxDistance [optional, defaults to 2] - Levenshtein distance threshold. Smaller
values yield better matches.
Examples:
# will find `digraph, mongraph, graph, egraph, ...`
node soundsLike.js ngraph
# this will narrow down results to edit distance 1
# `graph, egraph, ...`:
node soundsLike.js ngraph 1Discover relevant and popular packages quickly: http://anvaka.github.io/npmrank/online/ Select a keyword and get packages sorted by their pagerank value.
Daily metrics dump with all graphs is available here.
MIT