78 lines
2.0 KiB
Bash
Executable File
78 lines
2.0 KiB
Bash
Executable File
#!/bin/sh -e
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#
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# 2020 Dennis Camera (dennis.camera at ssrq-sds-fds.ch)
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#
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# This file is part of cdist.
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#
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# cdist 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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# cdist 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 cdist. If not, see <http://www.gnu.org/licenses/>.
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#
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# Find aliases for a given user name and print the aliases (each one on a
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# separate line)
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aliases_file=$("${__type_explorer:?}/aliases_file")
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test -r "${aliases_file}" || exit 0
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: "${__object_id:?}" # assert __object_id is set, because it is used in AWK
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awk -F ':[ \t]*' '
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function print_aliases(aliases, matches) {
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# prints comma-separated aliases (one per line)
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split(aliases, matches, /,[ \t]*/)
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for (i in matches) {
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gsub(/^[ \t]*|[ \t]*$/, "", matches[i])
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print matches[i]
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}
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}
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/^#/ {
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# comment line (ignore)
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select = 0; cont = 0 # comments terminate alias lists and continuations
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next
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}
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{
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# is this line a continuation line?
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# (the prev. line ended in a backslash or the line starts with whitespace)
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is_cont = /^[ \t]/ || cont
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# detect if the line is a line to be continued (ends with a backslash)
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cont = ($0 ~ /\\$/)
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# if it is, we drop the backslash from the line and skip to next line
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# (the contents have been printed above if they should)
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if (cont) {
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sub(/[ \t]*\\$/, "", $0)
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next
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}
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}
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is_cont {
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# if in the alias list of the "target" user, we also print these aliases.
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if (select) print_aliases($0)
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next
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}
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$1 == ENVIRON["__object_id"] {
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# "target" user -> print alias list
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select = 1
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print_aliases($2)
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next
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}
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{
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# other user
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select = 0
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}
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' "${aliases_file}"
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