Since IDEA 14 (2014), IDEA and other contemporaneous JebBrains IDEs don't store sensitive info in `datasources.xml` and it makes sense to version control to share project data sources among the team. `dataSources.local.xml` is user-specific: contain usernames and could be sensitive from a security perspective, albeit passwords could be externalized to e.g. Mac Keychain.
References: https://intellij-support.jetbrains.com/hc/en-us/articles/
206544839, https://youtrack.jetbrains.com/issue/IDEA-127105
# Sensitive or high-churn files:
.idea/**/dataSources/
.idea/**/dataSources.ids
-.idea/**/dataSources.xml
.idea/**/dataSources.local.xml
.idea/**/sqlDataSources.xml
.idea/**/dynamic.xml