Hacer eso en funciones separadas que no comparten lógica o variables juntas es más difícil ya que necesitarías almacenar valores en variables globales o trucos similares.

Debido a eso, ahora se recomienda en su lugar usar el `lifespan` como se explicó arriba.

## Detalles Técnicos

Doing that in separated functions that don't share logic or variables together is more difficult as you would need to store values in global variables or similar tricks.

Because of that, it's now recommended to instead use the `lifespan` as explained above.

## Technical Details { #technical-details }

#       $1=upgrade : indicates an upgrade
#
#   On RedHat,
#       $1=1       : indicates an new install
#       $1=2       : indicates an upgrade



# Sets the default values for fess variables used in this script
FESS_USER="${packaging.fess.user}"
FESS_GROUP="${packaging.fess.group}"
FESS_USER_HOME="${packaging.fess.var.dir}"

# Source the default env file
FESS_ENV_FILE="${packaging.env.file}"

   * doesn't work: Because nullness analyses typically infer the nullness of local variables,
   * there's no way to assign a {@code @Nullable T} to a field {@code T foo;} and instruct the
   * analysis that that means "plain {@code T}" rather than the inferred type {@code @Nullable T}.
   * (And even if annotations on local variables were permitted as an optional hint, no annotation

    //                                                                        Assist Logic
    //                                                                        ============

    /**
     * Registers environment variables for rendering.
     *
     * @param data the render data to populate
     */
    protected void registerEnvItems(final RenderData data) {
        RenderDataUtil.register(data, "envItems", getEnvItems());
    }

# ==============================================================================
# Run any CI script and env configuration to bisect a failing target in some
# build configuration. You must set the following variables to control this
# script:
#
#   TF_BISECT_GOOD: Last known good commit (e.g. commit from the last passing job)
#   TF_BISECT_BAD: First bad commit (e.g. commit from the first failing job)

#
#   On RedHat,
#       $1=0         : indicates a removal
#       $1=1         : indicates an upgrade



# Sets the default values for fess variables used in this script
FESS_USER="${packaging.fess.user}"
FESS_GROUP="${packaging.fess.group}"

# Source the default env file
FESS_ENV_FILE="${packaging.env.file}"
if [ -f "$FESS_ENV_FILE" ]; then
    . "$FESS_ENV_FILE"

When building, the CGO_CFLAGS, CGO_CPPFLAGS, CGO_CXXFLAGS, CGO_FFLAGS and
CGO_LDFLAGS environment variables are added to the flags derived from
these directives. Package-specific flags should be set using the
directives, not the environment variables, so that builds work in
unmodified environments. Flags obtained from environment variables
are not subject to the security limitations described above.

# 
# Usage:
#   ./update_wrapper_and_create_pr.sh [wrapper_version]
#
# Arguments:
#   wrapper_version - The Gradle version to update the wrapper to
# 
# Environment variables:
#   DEFAULT_BRANCH  - The default branch to create the pull request on (e.g. "master"/"release")
#   GITHUB_TOKEN    - GitHub bot token

        IS_UPGRADE=true
    ;;

    *)
        echo "post remove script called with unknown argument \`$1'" >&2
        exit 1
    ;;
esac

# Sets the default values for fess variables used in this script
FESS_USER="${packaging.fess.user}"
FESS_GROUP="${packaging.fess.group}"
PID_DIR="${packaging.fess.pid.dir}"

# Source the default env file
if [ "$SOURCE_ENV_FILE" = "true" ]; then