Script to check whether `psalm-baseline.xml` improved/worsened over time

check-source-baseline-size.sh

#!/usr/bin/env bash

export TARGET_REF=${TARGET_REF:-HEAD}

git show "$TARGET_REF:psalm-baseline.xml" | xmllint --xpath 'count(//file[not(starts-with(@src, "test"))]/*/code)' -

NR % 2 == 0 causes half the lines to be skipped, causing roughly half the number of issues to be output.

Removing that part gives the correct result:

git show "$TARGET_REF:psalm-baseline.xml" | xmllint --xpath '//file[not(starts-with(@src, "test"))]//@occurrences' - | awk -F\" '{ print $2 }' | awk '{s+=$1} END {print s}'

- git show "$TARGET_REF:psalm-baseline.xml" | xmllint --xpath '//file[not(starts-with(@src, "test"))]//@occurrences' - | awk -F\" 'NR % 2 == 0 { print $2 }' | awk '{s+=$1} END {print s}'
+ git show "$TARGET_REF:psalm-baseline.xml" | xmllint --xpath '//file[not(starts-with(@src, "test"))]//@occurrences' - | awk -F\" '{ print $2 }' | awk '{s+=$1} END {print s}'

Thanks @annervisser: applied your suggestion :)

@Ocramius Another update to support the new format without occurrences= attribute:

- git show "$TARGET_REF:psalm-baseline.xml" | xmllint --xpath '//file[not(starts-with(@src, "test"))]//@occurrences' - | awk -F\" '{ print $2 }' | awk '{s+=$1} END {print s}'
+ git show "$TARGET_REF:psalm-baseline.xml" | xmllint --xpath 'count(//file[not(starts-with(@src, "test"))]/*/code)' -

Applied, thanks @annervisser!

I've made a GitHub action which uses this to get the score for a pull request compared to its base branch. This allows you to comment it on the PR or use it on other subsequent actions.

https://github.com/annervisser/psalm-baseline-progress-action