diff options
author | Matthias Beyer <matthias.beyer@atos.net> | 2021-03-05 16:16:06 +0100 |
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committer | Matthias Beyer <mail@beyermatthias.de> | 2021-03-07 21:50:29 +0100 |
commit | 61fb91fe4a4e0302b97aff777e68a98d15989da0 (patch) | |
tree | a887366e10e36c0ed03aaf6b18d9c3968d588686 /src/commands/util.rs | |
parent | 407379afeced6fd3185d054bacd097f4c126ebe3 (diff) |
Move display_data() helper to commands::util
Signed-off-by: Matthias Beyer <matthias.beyer@atos.net>
Diffstat (limited to 'src/commands/util.rs')
-rw-r--r-- | src/commands/util.rs | 52 |
1 files changed, 51 insertions, 1 deletions
diff --git a/src/commands/util.rs b/src/commands/util.rs index 1660c5d..3b63c1d 100644 --- a/src/commands/util.rs +++ b/src/commands/util.rs @@ -8,13 +8,16 @@ // SPDX-License-Identifier: EPL-2.0 // +use std::io::Write; +use std::fmt::Display; use std::path::Path; -use anyhow::Error; use anyhow::Context; +use anyhow::Error; use anyhow::Result; use anyhow::anyhow; use clap::ArgMatches; +use itertools::Itertools; use log::{error, info, trace}; use regex::Regex; use tokio_stream::StreamExt; @@ -159,3 +162,50 @@ pub fn mk_header(vec: Vec<&str>) -> Vec<ascii_table::Column> { .collect() } +/// Display the passed data as nice ascii table, +/// or, if stdout is a pipe, print it nicely parseable +pub fn display_data<D: Display>( + headers: Vec<ascii_table::Column>, + data: Vec<Vec<D>>, + csv: bool, +) -> Result<()> { + if csv { + use csv::WriterBuilder; + let mut wtr = WriterBuilder::new().from_writer(vec![]); + for record in data.into_iter() { + let r: Vec<String> = record.into_iter().map(|e| e.to_string()).collect(); + + wtr.write_record(&r)?; + } + + let out = std::io::stdout(); + let mut lock = out.lock(); + + wtr.into_inner() + .map_err(Error::from) + .and_then(|t| String::from_utf8(t).map_err(Error::from)) + .and_then(|text| writeln!(lock, "{}", text).map_err(Error::from)) + } else if atty::is(atty::Stream::Stdout) { + let mut ascii_table = ascii_table::AsciiTable { + columns: Default::default(), + max_width: terminal_size::terminal_size() + .map(|tpl| tpl.0 .0 as usize) // an ugly interface indeed! + .unwrap_or(80), + }; + + headers.into_iter().enumerate().for_each(|(i, c)| { + ascii_table.columns.insert(i, c); + }); + + ascii_table.print(data); + Ok(()) + } else { + let out = std::io::stdout(); + let mut lock = out.lock(); + for list in data { + writeln!(lock, "{}", list.iter().map(|d| d.to_string()).join(" "))?; + } + Ok(()) + } +} + |