# Generation

## Using scripts independently

Most of the scripts in this directory can be used independently to do file updates across all modules.
They are also used and tested by `merge_repository.sh`.

## Merge repository into the monorepo

Built by running [merge_repository.sh](merge_repository.sh).

The script creates a new Git repository in `monorepo/google-cloud-java` by merging
the repositories in the input.
After running the script locally, you can `cd` into the generated repository and build the project.

```shell
cd monorepo/google-cloud-java
mvn test -T C1 -B
```

### Input

The file `repos.txt` lists all the split repos to include in the aggregation into the monorepo.

### Output

See: [bootstrap_output](https://github.com/googleapis/google-cloud-java/tree/bootstrap_output) branch.

### Diffs

The workflow also generates a diff between the current `main` branch and the generated aggregation of modules from split repos.
See: `boostrap_outout_diff_{event}` branches.

#!/bin/bash
# This script should run as a part of new-library generation process.
# This script introduces release-please annotations if they don't exist in the readme file

for module in $(find . -mindepth 2 -maxdepth 2 -name pom.xml | sort | xargs dirname); do

  if [[ "${module}" = *java-core ]] || [[ "${module}" = *java-shared-dependencies ]]; then
    continue
  fi

  readme_file="${module}/README.md"

  if [ -e ${readme_file} ] && ! [[ $(grep "x-version-update-start" ${readme_file}) ]]; then

    artifactId_line=$(grep --max-count=1 'artifactId' "${readme_file}")

    prefix="  <artifactId>"
    suffix="</artifactId>"
    string=${artifactId_line}
    new_string=${string#"$prefix"}
    artifactId=${new_string%"$suffix"}

    echo "Handling ${artifactId}"

    line_number=$(grep -n -m 1 "<dependency>" ${readme_file} | sed 's/\([0-9]*\).*/\1/')
    start_line=${line_number}-2
    line_number_end=$(grep -n -m 1 "Scala" ${readme_file} | sed 's/\([0-9]*\).*/\1/')
    end_line=${line_number_end}+4

    start_line_append="<!-- {x-version-update-start:${artifactId}:released} -->"

    printf '%s\n' H ${start_line}i "${start_line_append}" . w | ed -s ${readme_file}
    printf '%s\n' H ${end_line}i "<!-- {x-version-update-end} -->" . w | ed -s ${readme_file}

  fi

done