59 lines
1.2 KiB
Bash
Executable File
59 lines
1.2 KiB
Bash
Executable File
#!/bin/sh -e
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if [ -f "$__object/parameter/file" ]
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then
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file="$( cat "$__object/parameter/file" )"
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else
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file="/$__object_id"
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fi
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script="$( cat "$__object/parameter/script" )"
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if [ "$script" = '-' ]
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then
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script="$( cat "$__object/stdin" )"
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fi
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# since stdin is not available in explorer, we pull file from target with explorer
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file_from_target="$__object/explorer/file"
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sed_cmd='sed'
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if [ -f "$__object/parameter/regexp-extended" ]
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then
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sed_cmd="$sed_cmd -E"
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fi
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# do sed dry run, diff result and if no change, then there's nothing to do
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# also redirect diff's output to stderr for debugging purposes
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if echo "$script" | "$sed_cmd" -f - "$file_from_target" | diff -u "$file_from_target" - >&2
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then
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exit 0
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fi
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# we can't use -i, because it's not posix, so we fly with tempfile and cp
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# and we use cp because we want to preserve destination file's attributes
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# shellcheck disable=SC2016
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echo 'tmp="$__object/tempfile"'
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echo "$sed_cmd -f - '$file' > \"\$tmp\" << EOF"
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echo "$script"
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echo 'EOF'
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echo "cp \"\$tmp\" '$file'"
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# shellcheck disable=SC2016
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echo 'rm -f "$tmp"'
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echo 'change' >> "$__messages_out"
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if [ -f "$__object/parameter/onchange" ]
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then
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cat "$__object/parameter/onchange"
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fi
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