89 lines
2.1 KiB
Bash
89 lines
2.1 KiB
Bash
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#!/bin/bash
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# Selectively run tests for this repo, based on what has changed
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# in a commit. Runs short tests for the whole repo, and full tests
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# for changed directories.
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set -e
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prefix=cloud.google.com/go
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dryrun=false
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if [[ $1 == "-n" ]]; then
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dryrun=true
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shift
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fi
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if [[ $1 == "" ]]; then
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echo >&2 "usage: $0 [-n] COMMIT"
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exit 1
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fi
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# Files or directories that cause all tests to run if modified.
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declare -A run_all
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run_all=([.travis.yml]=1 [run-tests.sh]=1)
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function run {
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if $dryrun; then
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echo $*
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else
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(set -x; $*)
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fi
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}
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# Find all the packages that have changed in this commit.
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declare -A changed_packages
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for f in $(git diff-tree --no-commit-id --name-only -r $1); do
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if [[ ${run_all[$f]} == 1 ]]; then
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# This change requires a full test. Do it and exit.
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run go test -race -v $prefix/...
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exit
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fi
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# Map, e.g., "spanner/client.go" to "$prefix/spanner".
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d=$(dirname $f)
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if [[ $d == "." ]]; then
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pkg=$prefix
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else
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pkg=$prefix/$d
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fi
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changed_packages[$pkg]=1
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done
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echo "changed packages: ${!changed_packages[*]}"
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# Reports whether its argument, a package name, depends (recursively)
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# on a changed package.
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function depends_on_changed_package {
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# According to go list, a package does not depend on itself, so
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# we test that separately.
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if [[ ${changed_packages[$1]} == 1 ]]; then
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return 0
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fi
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for dep in $(go list -f '{{range .Deps}}{{.}} {{end}}' $1); do
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if [[ ${changed_packages[$dep]} == 1 ]]; then
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return 0
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fi
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done
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return 1
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}
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# Collect the packages into two separate lists. (It is faster go test a list of
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# packages than to individually go test each one.)
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shorts=
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fulls=
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for pkg in $(go list $prefix/...); do # for each package in the repo
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if depends_on_changed_package $pkg; then # if it depends on a changed package
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fulls="$fulls $pkg" # run the full test
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else # otherwise
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shorts="$shorts $pkg" # run the short test
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fi
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done
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run go test -race -v -short $shorts
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if [[ $fulls != "" ]]; then
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run go test -race -v $fulls
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fi
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