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Diffstat (limited to 'pkgtools/pkgtasks/files/postremove.subr')
| -rw-r--r-- | pkgtools/pkgtasks/files/postremove.subr | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/pkgtools/pkgtasks/files/postremove.subr b/pkgtools/pkgtasks/files/postremove.subr new file mode 100644 index 00000000000..87a84ed3b08 --- /dev/null +++ b/pkgtools/pkgtasks/files/postremove.subr @@ -0,0 +1,137 @@ +# 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 +# postremove.subr -- post-removal actions for packages +# +# SYNOPSIS +# task_postremove <datafile> +# +# DESCRIPTION +# The task_postremove function performs actions that SHOULD occur +# AFTER deleting the package files: +# +# o Unregister shells from the system shells database. +# o Update fonts databases. +# o Rebuild the system run-time library search path database. +# o Update OCaml module run-time library search path database. +# o Remove empty directories. +# o Remove unused users. +# o Remove unused groups. +# +# 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_postremove__="yes" + +task_load directories +task_load files +task_load fonts +task_load groups +task_load info_files +task_load ocaml_findlib +task_load shells +task_load shlibs +task_load sort +task_load taskfunc +task_load users + +task_postremove() +{ + [ $# -gt 0 ] || return 127 + local datafile="$1"; shift + + [ -f "$datafile" ] || return 1 + + local post_actions= + # Remove shells from the system shells database. + post_actions="task_shells" + # Update font databases. + post_actions="$post_actions task_fonts" + # Rebuild the system run-time library search path database. + post_actions="$post_actions task_shlibs" + # Update OCaml module run-time library search path database. + post_actions="$post_actions task_ocaml_findlib" + # Remove empty directories. + post_actions="$post_actions task_directories" + # Remove unused users. + post_actions="$post_actions task_users" + # Remove unused groups. + post_actions="$post_actions task_groups" + # Run generic package tasks. + post_actions="$post_actions task_function" + + # Seed checks with actions from preremove, in order. + local post_checks="task_info_files task_files" + + local result=0 + local stage="preinstall" + + local post_fn silent + for post_fn in $post_actions; do + case $post_fn in + task_directories|\ + task_groups|\ + task_shells|\ + task_users) + # These tasks should be verbose since they touch + # system files and directories. + silent= ;; + *) silent="-s" ;; + esac + case $post_fn in + task_directories) + # Reverse-sort data lines for this task. + task_sort -r < $datafile | $post_fn $silent remove $stage ;; + *) $post_fn $silent remove $stage < $datafile ;; + esac + [ $? -eq 0 ] || result=1 + post_checks="$post_checks $post_fn" + done + + # Run all checks after all post-removal actions have completed + # and write messages to standard output for any checks that don't + # pass. + # + for post_fn in $post_checks; do + case $post_fn in + task_directories) + # Reverse-sort data lines for this task. + task_sort -r < $datafile | $post_fn check-remove $stage ;; + *) $post_fn check-remove $stage < $datafile ;; + esac + done + + return $result +} |