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Diffstat (limited to 'pkgtools/pkgtasks/files/preinstall.subr')
| -rw-r--r-- | pkgtools/pkgtasks/files/preinstall.subr | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/pkgtools/pkgtasks/files/preinstall.subr b/pkgtools/pkgtasks/files/preinstall.subr new file mode 100644 index 00000000000..8989761eec4 --- /dev/null +++ b/pkgtools/pkgtasks/files/preinstall.subr @@ -0,0 +1,104 @@ +# Copyright (c) 2017 The NetBSD Foundation, Inc. +# All rights reserved. +# +# This code is derived from software contributed to The NetBSD Foundation +# by Johnny C. Lam. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS +# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED +# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS +# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. +# +# NAME +# preinstall.subr -- pre-installation actions for packages +# +# SYNOPSIS +# task_preinstall <datafile> +# +# DESCRIPTION +# The task_preinstall function performs actions that MUST occur +# successfully BEFORE the package files are installed into their +# final location for the installation to be successful: +# +# o Ensure that all required groups and users exist. +# o Create required directories. +# +# The datafile contains lines of the form: +# +# # <keyword>: <arg> ... +# +# These lines are used as input to the various script functions. +# +# RETURN VALUES +# Returns 0 on success, and >0 if an error occurs. +# + +__task_preinstall__="yes" + +task_load directories +task_load groups +task_load sort +task_load taskfunc +task_load users + +task_preinstall() +{ + [ $# -gt 0 ] || return 127 + local datafile="$1"; shift + + [ -f "$datafile" ] || return 1 + + local stage="preinstall" + + # Require necessary groups and users before actions that may + # set permissions. + # + task_groups add $stage < $datafile + if task_groups check-add $stage < $datafile; then + : "groups exist" + else + # Fatal error: groups are missing. + return 1 + fi + + task_users add $stage < $datafile + if task_users check-add $stage < $datafile; then + : "users exist" + else + # Fatal error: users are missing. + return 1 + fi + + # Create directories so that pre-existing directories can be + # correctly identified. Sort the entries prior to creation to + # create path components in order. Any errors in creating + # directories are non-fatal. + # + task_sort < $datafile | task_directories add $stage + + # Run the generic package tasks. + if task_function add $stage < $datafile; then + : "success" + else + # Fatal error: failures in generic package tasks. + return 1 + fi + + return 0 +} |