unclog 0.7.3

unclog allows you to build your changelog from a collection of independent files. This helps prevent annoying and unnecessary merge conflicts when collaborating on shared codebases.
Documentation 
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//! Errors that can be produced by unclog.

use std::path::PathBuf;
use thiserror::Error;

/// All error variants that can be produced by unclog.
#[derive(Debug, Error)]
pub enum Error {
    #[error("I/O error relating to {0}: {1}")]
    Io(PathBuf, std::io::Error),
    #[error("failed to execute subprocess {0}: {1}")]
    Subprocess(String, std::io::Error),
    #[error("expected path to be a directory: {0}")]
    ExpectedDir(String),
    #[error("unexpected release directory name prefix: \"{0}\"")]
    UnexpectedReleaseDirPrefix(String),
    #[error("cannot obtain (or invalid) last component of path: \"{0}\"")]
    CannotObtainName(String),
    #[error("cannot extract version")]
    CannotExtractVersion(String),
    #[error("directory already exists: {0}")]
    DirExists(String),
    #[error("file already exists: {0}")]
    FileExists(String),
    #[error("invalid semantic version")]
    InvalidSemanticVersion(#[from] semver::Error),
    #[error("expected entry ID to start with a number, but got: \"{0}\"")]
    InvalidEntryId(String),
    #[error("failed to parse entry ID as a number")]
    InvalidEntryNumber(#[from] std::num::ParseIntError),
    #[error("no unreleased entries yet")]
    NoUnreleasedEntries,
    #[error("non-UTF8 characters in string")]
    NonUtf8String(#[from] std::string::FromUtf8Error),
    #[error("non-zero process exit code when executing {0}: {1}")]
    NonZeroExitCode(String, i32),
    #[error("failed to parse JSON: {0}")]
    JsonParsingFailed(#[from] serde_json::Error),
    #[error("no such cargo package: {0}")]
    NoSuchCargoPackage(String),
    #[error("failed to get relative package path: {0}")]
    StripPrefixError(#[from] std::path::StripPrefixError),
    #[error("unrecognized project type: {0}")]
    UnrecognizedProjectType(String),
    #[error("cannot autodetect project type in path: {0}")]
    CannotAutodetectProjectType(PathBuf),
    #[error("invalid bullet style - can only be \"*\" or \"-\"")]
    InvalidBulletStyle,
    #[error("failed to parse TOML file \"{0}\": {1}")]
    TomlParse(String, toml::de::Error),
    #[error("failed to serialize TOML: {0}")]
    TomlSerialize(toml::ser::Error),
    #[error("failed to parse URL: {0}")]
    FailedToParseUrl(#[from] url::ParseError),
    #[error("missing issue number (--issue-no) or pull request (--pull-request)")]
    MissingIssueNoOrPullRequest,
    #[error("please specify either an issue number (--issue-no) or a pull request (--pull-request), but not both")]
    EitherIssueNoOrPullRequest,
    #[error("the URL is missing its host: {0}")]
    UrlMissingHost(String),
    #[error("not a GitHub project: {0}")]
    NotGitHubProject(String),
    #[error("GitHub project is missing its path: {0}")]
    GitHubProjectMissingPath(String),
    #[error("GitHub project URLs must include both the org/user ID and project ID: {0}")]
    InvalidGitHubProjectPath(String),
    #[error("configuration is missing a project URL (needed for automatic entry generation)")]
    MissingProjectUrl,
    #[error("error loading Handlebars template: {0}")]
    HandlebarsTemplateLoad(String),
    #[error("error rendering Handlebars template: {0}")]
    HandlebarsTemplateRender(String),
    #[error("git error: {0}")]
    Git(#[from] git2::Error),
    #[error("configuration file already exists: {0}")]
    ConfigurationFileAlreadyExists(String),
    #[error("no parent folder for path: {0}")]
    NoParentFolder(String),
    #[error("invalid URL in Git repository for remote \"{0}\": {1}")]
    InvalidGitRemoteUrl(String, String),
    #[error("invalid URL: {0}")]
    InvalidUrl(String),
    #[error("component \"{0}\" is not defined in changelog config.toml file")]
    ComponentNotDefined(String),
    #[error("CLI error: {0}")]
    CommandLine(String),
}