feat: add MAVEN_SETTINGS_PATH

README.md

@@ -6,6 +6,8 @@ Environment variables
 - `MAVEN_SETTINGS_BASE64` (preferred): base64-encoded contents of the `settings.xml`. If present, the entrypoint will decode it and write it to `~/.m2/settings.xml`.
 - `MAVEN_SETTINGS`: raw contents of the `settings.xml`. Used only if `MAVEN_SETTINGS_BASE64` is not set.
 
+- `MAVEN_SETTINGS_PATH`: path to the `settings.xml` inside the container (exported by the entrypoint). Typically `/home/ci/.m2/settings.xml` or `~/.m2/settings.xml` depending on the user; use this variable in scripts to locate the file reliably.
+
 Notes
 - The entrypoint will create `~/.m2` if it does not exist and set the `settings.xml` file to mode `644`.
 - Use `MAVEN_SETTINGS_BASE64` when your CI system has trouble preserving newlines or special characters in environment variables.

entrypoint.sh

@@ -6,6 +6,9 @@ set -euo pipefail
 # then exec the container command.
 
 M2_DIR="${HOME:-/root}/.m2"
+SETTINGS_FILE="$M2_DIR/settings.xml"
+# Export the path to the settings.xml so downstream processes can read it
+export MAVEN_SETTINGS_PATH="$SETTINGS_FILE"
 
 if [[ -n "${MAVEN_SETTINGS_BASE64:-}" ]]; then
   mkdir -p "$M2_DIR"