50 lines
1.7 KiB
Rust
50 lines
1.7 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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//! Functions to be used for clap::Arg::validator()
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//! to validate arguments
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use std::path::PathBuf;
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use boolinator::Boolinator;
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pub fn is_existing_path(s: String) -> Result<(), String> {
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PathBuf::from(s.clone()).exists().as_result((), format!("Not a File or Directory: {}", s))
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}
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pub fn is_file(s: String) -> Result<(), String> {
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PathBuf::from(s.clone()).is_file().as_result((), format!("Not a File: {}", s))
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}
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pub fn is_directory(s: String) -> Result<(), String> {
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PathBuf::from(s.clone()).is_dir().as_result((), format!("Not a Directory: {}", s))
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}
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pub fn is_integer(s: String) -> Result<(), String> {
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use std::str::FromStr;
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let i : Result<i64, _> = FromStr::from_str(&s);
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i.map(|_| ()).map_err(|_| format!("Not an integer: {}", s))
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}
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pub fn is_url(s: String) -> Result<(), String> {
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use url::Url;
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Url::parse(&s).map(|_| ()).map_err(|_| format!("Not a URL: {}", s))
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}
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