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79 lines
2.6 KiB
Bash
Executable File
79 lines
2.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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# READ THIS BEFORE MAKING CHANGES:
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#
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# If you want to add a new pre-commit check, here are the rules:
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#
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# 1. Create a bash function for your check (see e.g. ui_lint below).
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# NOTE: Each function will be called in a sub-shell so you can freely
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# change directory without worrying about interference.
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# 2. Add the name of the function to the CHECKS variable.
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# 3. If no changes relevant to your new check are staged, then
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# do not output anything at all - this would be annoying noise.
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# In this case, call 'return 0' from your check function to return
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# early without blocking the commit.
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# 4. If any non-trivial check-specific thing has to be invoked,
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# then output '==> [check description]' as the first line of
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# output. Each sub-check should output '--> [subcheck description]'
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# after it has run, indicating success or failure.
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# 5. Call 'block [reason]' to block the commit. This ensures the last
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# line of output calls out that the commit was blocked - which may not
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# be obvious from random error messages generated in 4.
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#
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# At the moment, there are no automated tests for this hook, so please run it
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# locally to check you have not broken anything - breaking this will interfere
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# with other peoples' workflows significantly, so be sure, check everything twice.
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set -euo pipefail
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# Call block to block the commit with a message.
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block() {
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echo "$@"
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echo "Commit blocked - see errors above."
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exit 1
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}
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# Add all check functions to this space separated list.
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# They are executed in this order (see end of file).
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CHECKS="ui_lint backend_lint"
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# Run ui linter if changes in that dir detected.
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ui_lint() {
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local DIR=ui LINTER=node_modules/.bin/lint-staged
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# Silently succeed if no changes staged for $DIR
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if git diff --name-only --cached --exit-code -- $DIR/; then
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return 0
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fi
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# Silently succeed if the linter has not been installed.
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# We assume that if you're doing UI dev, you will have installed the linter
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# by running yarn.
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if [ ! -x $DIR/$LINTER ]; then
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return 0
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fi
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echo "==> Changes detected in $DIR/: Running linter..."
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# Run the linter from the UI dir.
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cd $DIR
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$LINTER || block "UI lint failed"
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}
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backend_lint() {
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# Silently succeed if no changes staged for Go code files.
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staged=$(git diff --name-only --cached --exit-code -- '*.go')
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ret=$?
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if [ $ret -eq 0 ]; then
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return 0
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fi
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# Only run fmtcheck on staged files
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./scripts/gofmtcheck.sh "${staged}" || block "Backend linting failed; run 'make fmt' to fix."
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}
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for CHECK in $CHECKS; do
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# Force each check into a subshell to avoid crosstalk.
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( $CHECK ) || exit $?
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done
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