feat: Rename script.sh to source.sh
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114
src/lib/source.sh
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114
src/lib/source.sh
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#! /usr/bin/env bash
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# script.sh - utilitary functions.
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# Copyright (c) 2022 ge <https://nixhacks.net/>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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validate_sources() {
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# Check sources array.
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#
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# Usage: validate_sources ARRAY
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# Allowed URI schemes: file, mysql postgres, sqlite
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# No required schemes.
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local array=("$@")
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local scheme=
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for uri in "${array[@]}"; do
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scheme="${uri%%:*}"
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case "$scheme" in
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file|mysql|postgres|sqlite) : ;; # do nothing, this is OK
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*) echo "Error: Unsupported URI scheme: $scheme" >&2; exit 1;;
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esac
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done
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}
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validate_targets() {
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# Check targets array and set local_target variable.
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#
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# Usage: validate_targets ARRAY
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# Allowed URI schemes: file, ftp, sftp, rsync, s3, swift, sj, dav, davs
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# Required schemes (one or more times): file
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local array=("$@")
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local scheme=
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local file_targets=()
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for uri in "${array[@]}"; do
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scheme="${uri%%:*}"
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case "$scheme" in
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file|ftp|sftp|rsync|s3|swift|sj|dav|davs)
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if [[ "$scheme" == file ]]; then
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file_targets+=("$uri")
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fi
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;;
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*) echo "Error: Unsupported URI scheme: $scheme" >&2; exit 1;;
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esac
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done
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if [ "${#file_targets[@]}" -eq 0 ]; then
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echo "Error: 'file' scheme is not set in targets." \
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"You must provide one or more targets with 'file' scheme." >&2
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exit 1
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else
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# Set local_target. This variable contains path to save local backups.
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# Files to additional targets will be coped from this directory.
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local_target="${file_targets[0]}"
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fi
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}
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source_script() {
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# Safely as possible source backup script.
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#
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# Usage: source_script SCRIPT
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local script="$1"
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if ! test -f "$script"; then
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echo "Error: No such file: $script" >&2; exit 1
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fi
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# Dry run script, check syntax. See set(1p)
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if ! bash -n "$script"; then
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echo Error: Please check your syntax >&2; exit 1
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fi
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# Source script
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. "$@"
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# Check required variables
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if [[ "$sources" ]]; then
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validate_sources "${sources[@]}"
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else
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echo Error: sources array is not set >&2; exit 1
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fi
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if [[ "$targets" ]]; then
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validate_targets "${targets[@]}"
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else
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echo Error: targets array is not set >&2; exit 1
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fi
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}
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is_function_set() {
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# Test function is set or not. Return exit code.
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# Useful with 'if' statement.
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#
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# Usage: is_function_set FUNCTION
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declare -F -- "$1" > /dev/null
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}
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@ -1,6 +1,6 @@
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#! /usr/bin/env bats
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# source_script() from lib/script.sh tests.
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# source_script() from lib/source.sh tests.
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# See: https://bats-core.readthedocs.io/en/latest/index.html
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setup() {
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@ -16,55 +16,55 @@ setup() {
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# ------------------------------ #
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@test "Bad script syntax" {
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. script.sh
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. source.sh
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run source_script $DIR/files/bad_syntax.plan
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assert_output --partial 'Error: Please check your syntax'
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}
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@test "Empty script" {
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. script.sh
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. source.sh
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run source_script $DIR/files/empty_script.plan
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assert_output --partial 'Error: sources array is not set'
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}
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@test "Empty sources array" {
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. script.sh
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. source.sh
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run source_script $DIR/files/empty_sources.plan
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assert_output --partial 'Error: sources array is not set'
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}
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@test "Empty targets array" {
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. script.sh
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. source.sh
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run source_script $DIR/files/empty_targets.plan
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assert_output --partial 'Error: targets array is not set'
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}
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@test "No targets with 'file' URI scheme" {
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. script.sh
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. source.sh
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run source_script $DIR/files/no_file_target.plan
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assert_output --partial "Error: 'file' scheme is not set in targets. You must provide one or more targets with 'file' scheme."
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}
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@test "Unsuported source scheme" {
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. script.sh
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. source.sh
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run source_script $DIR/files/unsupported_source_scheme.plan
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assert_output --partial 'Error: Unsupported URI scheme: mongo'
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}
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@test "Unsuported target scheme" {
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. script.sh
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. source.sh
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run source_script $DIR/files/unsupported_target_scheme.plan
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assert_output --partial 'Error: Unsupported URI scheme: scp'
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}
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@test "Set local target" {
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. script.sh
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. source.sh
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source_script $DIR/files/basic.plan
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[ "$local_target" == 'file:/var/backup' ]
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}
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@test "Set local target from multiple 'file' targets" {
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. script.sh
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. source.sh
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source_script $DIR/files/multiple_file_targets.plan
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[ "$local_target" == 'file:///home/backups' ]
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}
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