Bitrise - how to set iOS Build Number and Version from Git Tag

Question

Brand new to Bitrise and CI. My goal is to trigger build and release to App Store Connect when I tag a build in my repo. I have the triggering working as expected. What I want to know is if it’s possible to extract a version and build number from the BITRISE_GIT_TAG env var. I want to tag a commit on GH with DEV v1.0.3-22 and then run a workflow with Set Xcode Project Build Number step where I set the Build Number to 22 and Version Number to 1.0.3. This mirrors our CI/CD processes on our backend.

How could I go about doing this?

Answer 1

The way I ended up handling this was to add a custom script step with the code below. It seems a bit hacky but has been working reliably.

#!/usr/bin/env bash
# fail if any commands fails
set -e
# make pipelines' return status equal the last command to exit with a non-zero status, or zero if all commands exit successfully
set -o pipefail
# debug log
set -x

# write your script here
tag="$BITRISE_GIT_TAG"
app_version="0.0.0"
build_number="1"

if [ ! -z  "$tag" ] ; then 
    echo $tag

    pattern='[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}'


    if [[ $tag =~ $pattern ]]; then 
        app_version=${BASH_REMATCH[0]}
    else echo 'App Version not found'; 
    fi

    build_number=${tag##*-}

    envman add --key app_build_number --value "$build_number"
    envman add --key app_version --value "$app_version"
fi