build: add nix crate and update main.rs
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@@ -46,6 +46,8 @@ use is_terminal::IsTerminal;
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extern crate term;
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use nix::unistd;
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lazy_static! {
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static ref FORMAT_BOX_CHARS_NO_BORDER_LINE_SEPARATOR: TableFormat = format::FormatBuilder::new()
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.column_separator('│')
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@@ -517,8 +519,8 @@ fn mode_diff(cmd: &mut Command, args: Args, ids: &mut Vec<i64>, tags: &mut Vec<S
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let compression_engine_b = compression::get_engine(compression_type_b).expect("Unable to get compression engine");
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let (fd_a_read, fd_a_write) = nix::unistd::pipe().unwrap();
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let (fd_b_read, fd_b_write) = nix::unistd::pipe().unwrap();
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let (fd_a_read, fd_a_write) = unistd::pipe().unwrap();
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let (fd_b_read, fd_b_write) = unistd::pipe().unwrap();
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let mut child = std::process::Command::new("diff")
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.arg("-u")
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