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use crate::configuration::Configuration;
use std::fmt::Write;
use std::fs;
use std::io::{Error, Result};
use std::path::PathBuf;
pub fn status(configuration: &Configuration) -> Result<String> {
let mut status_message = String::new();
status_message.push_str("# Configuration\n");
status_message.push_str("\n## Directories\n");
// Main Configuration Locations
status_message.push_str(&get_directory_stats(
"Configuration",
&configuration.config_directory,
)?);
status_message.push_str(&get_directory_stats("Data", &configuration.data_directory)?);
status_message.push_str(&get_directory_stats(
"Output",
&configuration.output_directory,
)?);
status_message.push_str("\n## Blog Settings\n");
writeln!(
&mut status_message,
"Number of posts to keep: {}",
configuration.max_posts
)
.map_err(|_| Error::other("Unable to write status"))?;
Ok(status_message)
}
fn get_directory_stats(label: &str, directory: &PathBuf) -> Result<String> {
let mut status_message = String::new();
write!(&mut status_message, "{}: {}. ", label, directory.display())
.map_err(|_| Error::other("Unable to write status"))?;
if directory.exists() {
status_message.push_str("Exists ");
if fs::read_dir(directory).is_ok() {
status_message.push_str("and is readable.\n");
} else {
status_message.push_str("but is not readable.\n");
}
} else {
status_message.push_str("Does not exist.\n");
}
Ok(status_message)
}
#[cfg(test)]
mod tests {
use std::fs::{metadata, set_permissions};
use std::path::PathBuf;
#[cfg(unix)]
use std::os::unix::fs::PermissionsExt;
#[cfg(windows)]
use std::os::windows::fs::PermissionsExt;
use test_utilities::*;
use super::*;
#[test]
fn get_directory_stats_detects_nonexistent_directories() {
let test_dir = PathBuf::from("/krillinnoooootravez");
if let Ok(output) = get_directory_stats("krillin", &test_dir) {
assert!(output.contains("Does not exist."));
} else {
panic!("Could not get stats for directory that doesn't exist.");
}
}
#[test]
fn get_directory_detects_writability() {
let test_dir = setup_test_dir();
if let Ok(output) = get_directory_stats("yajirobe", &test_dir) {
assert!(output.contains("Exists"));
assert!(output.contains("is readable"));
} else {
panic!("Could not get stats for directory that doesn't exist.");
}
cleanup_test_dir(&test_dir);
}
#[test]
fn get_directory_detects_lack_of_writability() {
let test_dir = setup_test_dir();
let metadata = metadata(&test_dir).expect("Could not fetch metadata for test dir");
let mut permissions = metadata.permissions();
#[cfg(unix)]
{
permissions.set_mode(0o311);
}
set_permissions(&test_dir, permissions.clone())
.expect("Could not set read permissions on dir");
if let Ok(output) = get_directory_stats("roshi", &test_dir) {
assert!(output.contains("Exists"));
assert!(output.contains("is not readable"));
} else {
panic!("Could not get stats for directory that doesn't exist.");
}
#[cfg(unix)]
{
permissions.set_mode(0o755);
}
set_permissions(&test_dir, permissions).expect("Could not reset permissions on dir");
cleanup_test_dir(&test_dir);
}
}
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