Matthias Beyer
ddf811a589
This commit makes the logging functionality types from libimagrt public, so the libimagruby implementation can re-use the ImagLogger type.
115 lines
3.7 KiB
Rust
115 lines
3.7 KiB
Rust
//
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// imag - the personal information management suite for the commandline
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// Copyright (C) 2015, 2016 Matthias Beyer <mail@beyermatthias.de> and contributors
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; version
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// 2.1 of the License.
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//
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// This library 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 GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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//
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use std::io::Write;
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use std::io::stderr;
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use log::{Log, LogLevel, LogRecord, LogMetadata};
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use ansi_term::Style;
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use ansi_term::Colour;
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use ansi_term::ANSIString;
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pub struct ImagLogger {
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prefix: String,
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lvl: LogLevel,
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color_enabled: bool,
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}
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impl ImagLogger {
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pub fn new(lvl: LogLevel) -> ImagLogger {
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ImagLogger {
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prefix: "[imag]".to_owned(),
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lvl: lvl,
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color_enabled: true
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}
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}
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pub fn with_prefix(mut self, pref: String) -> ImagLogger {
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self.prefix = pref;
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self
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}
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pub fn with_color(mut self, b: bool) -> ImagLogger {
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self.color_enabled = b;
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self
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}
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fn style_or_not(&self, c: Style, s: String) -> ANSIString {
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if self.color_enabled {
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c.paint(s)
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} else {
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ANSIString::from(s)
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}
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}
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fn color_or_not(&self, c: Colour, s: String) -> ANSIString {
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if self.color_enabled {
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c.paint(s)
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} else {
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ANSIString::from(s)
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}
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}
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}
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impl Log for ImagLogger {
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fn enabled(&self, metadata: &LogMetadata) -> bool {
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metadata.level() <= self.lvl
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}
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fn log(&self, record: &LogRecord) {
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use ansi_term::Colour::Red;
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use ansi_term::Colour::Yellow;
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use ansi_term::Colour::Cyan;
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if self.enabled(record.metadata()) {
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// TODO: This is just simple logging. Maybe we can enhance this lateron
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let loc = record.location();
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match record.metadata().level() {
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LogLevel::Debug => {
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let lvl = self.color_or_not(Cyan, format!("{}", record.level()));
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let file = self.color_or_not(Cyan, format!("{}", loc.file()));
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let ln = self.color_or_not(Cyan, format!("{}", loc.line()));
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let args = self.color_or_not(Cyan, format!("{}", record.args()));
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writeln!(stderr(), "{}[{: <5}][{}][{: >5}]: {}", self.prefix, lvl, file, ln, args).ok();
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},
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LogLevel::Warn | LogLevel::Error => {
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let lvl = self.style_or_not(Red.blink(), format!("{}", record.level()));
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let args = self.color_or_not(Red, format!("{}", record.args()));
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writeln!(stderr(), "{}[{: <5}]: {}", self.prefix, lvl, args).ok();
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},
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LogLevel::Info => {
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let lvl = self.color_or_not(Yellow, format!("{}", record.level()));
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let args = self.color_or_not(Yellow, format!("{}", record.args()));
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writeln!(stderr(), "{}[{: <5}]: {}", self.prefix, lvl, args).ok();
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},
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_ => {
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writeln!(stderr(), "{}[{: <5}]: {}", self.prefix, record.level(), record.args()).ok();
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},
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}
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}
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}
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}
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