LLM-Labs-Local/ansible/roles/transformerlab/tasks/main.yml

- name: Bootstrap TransformerLab release files
  shell: |
    set -euo pipefail
    cd "{{ courseware_transformerlab_home }}"
    curl -L "https://github.com/transformerlab/transformerlab-app/archive/refs/tags/{{ courseware_transformerlab_version }}.tar.gz" -o transformerlab.tar.gz
    tar -xzf transformerlab.tar.gz
    rm -f transformerlab.tar.gz
    rm -rf src
    mv "transformerlab-app-{{ courseware_transformerlab_version_dir }}/api" src
    echo "{{ courseware_transformerlab_version }}" > src/LATEST_VERSION
    curl -L "https://github.com/transformerlab/transformerlab-app/releases/download/{{ courseware_transformerlab_version }}/transformerlab_web.tar.gz" -o transformerlab_web.tar.gz
    rm -rf webapp
    mkdir -p webapp
    tar -xzf transformerlab_web.tar.gz -C webapp
    rm -f transformerlab_web.tar.gz
  args:
    executable: /bin/bash
    creates: "{{ courseware_transformerlab_home }}/src/install.sh"

- name: Add TransformerLab Miniforge Python path for space-safe bootstrap
  replace:
    path: "{{ courseware_transformerlab_home }}/src/install.sh"
    regexp: 'CONDA_BIN=\$\{MINIFORGE_ROOT\}/bin/conda\n'
    replace: |
      CONDA_BIN=${MINIFORGE_ROOT}/bin/conda
      CONDA_PYTHON_BIN=${MINIFORGE_ROOT}/bin/python
  when: "' ' in courseware_transformerlab_home"

- name: Inject space-safe TransformerLab conda runner
  blockinfile:
    path: "{{ courseware_transformerlab_home }}/src/install.sh"
    insertbefore: '^check_conda\(\) \{$'
    marker: '# {mark} courseware conda runner'
    block: |
      conda_direct_exec_works() {
        "${CONDA_BIN}" --version >/dev/null 2>&1
      }

      run_conda() {
        if conda_direct_exec_works; then
          "${CONDA_BIN}" "$@"
        else
          "${CONDA_PYTHON_BIN}" "${CONDA_BIN}" "$@"
        fi
      }
  when: "' ' in courseware_transformerlab_home"

- name: Rewrite TransformerLab installer to use the space-safe conda runner
  replace:
    path: "{{ courseware_transformerlab_home }}/src/install.sh"
    regexp: 'eval "\$\(\$\{CONDA_BIN\} shell\.bash hook\)"'
    replace: 'eval "$(run_conda shell.bash hook)"'
  when: "' ' in courseware_transformerlab_home"

- name: Rewrite TransformerLab doctor output to use the space-safe conda runner
  replace:
    path: "{{ courseware_transformerlab_home }}/src/install.sh"
    regexp: '\$\(\$\{CONDA_BIN\} --version\)'
    replace: '$(run_conda --version)'
  when: "' ' in courseware_transformerlab_home"

- name: Install TransformerLab
  shell: |
    set -euo pipefail
    ./src/install.sh 2>&1 | tee "{{ courseware_logs_dir }}/transformerlab_install.log"
    touch "{{ courseware_transformerlab_home }}/.courseware-managed"
  args:
    executable: /bin/bash
    chdir: "{{ courseware_transformerlab_home }}"
    creates: "{{ courseware_transformerlab_home }}/miniforge3/bin/conda"

- name: Rewrite TransformerLab Miniforge entrypoints to a space-safe shebang path
  shell: |
    set -euo pipefail
    actual_prefix="{{ courseware_transformerlab_home }}/miniforge3/bin/"
    safe_prefix="{{ ansible_env.HOME }}/.transformerlab/miniforge3/bin/"

    find "{{ courseware_transformerlab_home }}/miniforge3/bin" -maxdepth 1 -type f -print0 |
      while IFS= read -r -d '' file; do
        first_line=$(head -n 1 "$file" || true)
        case "$first_line" in
          "#!${actual_prefix}"*)
            suffix=${first_line#\#!}
            suffix=${suffix#"${actual_prefix}"}
            replacement="#!${safe_prefix}${suffix}"
            tmp_file=$(mktemp)
            {
              printf '%s\n' "$replacement"
              tail -n +2 "$file"
            } >"$tmp_file"
            chmod --reference="$file" "$tmp_file"
            mv "$tmp_file" "$file"
            ;;
        esac
      done
  args:
    executable: /bin/bash
  when: "' ' in courseware_transformerlab_home"

- name: Install TransformerLab multiuser dependencies
  shell: |
    set -euo pipefail
    ./src/install.sh multiuser_setup 2>&1 | tee "{{ courseware_logs_dir }}/transformerlab_multiuser_setup.log"
    touch "{{ courseware_transformerlab_home }}/.courseware-managed"
  args:
    executable: /bin/bash
    chdir: "{{ courseware_transformerlab_home }}"
    creates: "{{ courseware_transformerlab_home }}/envs/general-uv/bin/python"

- name: Check TransformerLab general uv environment
  stat:
    path: "{{ courseware_transformerlab_home }}/envs/general-uv/bin/python"
  register: courseware_transformerlab_general_uv

- name: Retry TransformerLab multiuser setup after source refresh
  shell: |
    set -euo pipefail
    ./src/install.sh multiuser_setup 2>&1 | tee "{{ courseware_logs_dir }}/transformerlab_multiuser_setup_retry.log"
  args:
    executable: /bin/bash
    chdir: "{{ courseware_transformerlab_home }}"
  when: not courseware_transformerlab_general_uv.stat.exists

- name: Recheck TransformerLab general uv environment
  stat:
    path: "{{ courseware_transformerlab_home }}/envs/general-uv/bin/python"
  register: courseware_transformerlab_general_uv

- name: Mark TransformerLab multiuser setup complete
  file:
    path: "{{ courseware_transformerlab_home }}/.multiuser_setup_complete"
    state: touch
    mode: "0644"
  when: courseware_transformerlab_general_uv.stat.exists

- name: Fail if TransformerLab general uv environment is missing
  fail:
    msg: "TransformerLab multiuser setup completed without creating {{ courseware_transformerlab_home }}/envs/general-uv/bin/python."
  when: not courseware_transformerlab_general_uv.stat.exists