-
Notifications
You must be signed in to change notification settings - Fork 11
/
sor
executable file
·91 lines (83 loc) · 1.84 KB
/
sor
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
#!/bin/bash
# Copyright 2019 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
short_usage() {
echo 'Usage: sor SNIPPET...'
}
help() {
short_usage
cat <<EOF
For each line from standard input, evaluate the specified SNIPPETs under Bash
with the line as the argument. Print the line if any snippet exits with
status 0.
-0, --null separate input and output filenames by null
--help display this help and exit
EOF
}
ask_for_help() {
echo "Try 'sor --help' for more information."
}
read_filename() {
local null_terminate=$1
local target_var=$2
if [ $null_terminate = true ]; then
IFS= read -r -d '' $target_var
else
read $target_var
fi
}
print_filename() {
local null_terminate=$1
local filename="$2"
if [ $null_terminate = true ]; then
printf '%s\0' "$filename"
else
echo "$filename"
fi
}
if ! temp=$(getopt -s bash -n sor -o 0 -l null,help -- "$@"); then
ask_for_help >&2
exit 1
fi
eval set -- "$temp"
unset temp
null_terminate=false
while true; do
case "$1" in
--help)
help
exit 0
;;
-0|--null)
shift
null_terminate=true
;;
--)
shift
break
;;
*)
echo >&2 'Internal error; please report.'
exit 1
;;
esac
done
while read_filename $null_terminate file; do
for test in "$@"; do
if eval "$test \"$file\""; then
print_filename $null_terminate "$file"
continue 2
fi
done
done