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//! A [`cargo` subcommand](https://github.com/rust-lang/cargo/wiki/Third-party-cargo-subcommands) for checking and applying
//! updates to installed executables
//!
//! # Library doc
//!
//! This library is used by `cargo-update` itself for all its function and is therefore contains all necessary functions.
//!
//! ## Data flow
//!
//! ```text
//! Options::parse()
//! |> installed_main_repo_packages()
//! |> intersect_packages()
//! |> get_index_path()
//! |> MainRepoPackage::pull_version()
//! ```
//!
//! # Executable manpage
//!
//! ## SYNOPSIS
//!
//! [`cargo install-update`](https://github.com/nabijaczleweli/cargo-update) [OPTIONS] [PACKAGE...]
//!
//! ## DESCRIPTION
//!
//! Cargo subcommand for checking and applying updates to installed executables.
//!
//! This was mostly built out of a frustration with periodically checking for
//! updates for my cargo-installed executables, which was long and boring.
//!
//! Only updates packages from the main repository.
//!
//! See
//! [cargo-install-update-config(1)](https://cdn.rawgit.com/nabijaczleweli/cargo-update/man/cargo-install-update-config.1.html)
//! for further configuring updates.
//!
//! Exit values and possible errors:
//!
//! ```text
//! -1 - cargo subprocess was terminated by a signal (Linux-only)
//! 1 - option parsing error
//! X - bubbled-up cargo install exit value
//! ```
//!
//! ## OPTIONS
//!
//! -a --all
//!
//! ```text
//! Update all currently installed executables.
//!
//! Exclusive with list of packages. Required if list of packages not given.
//! ```
//!
//! [PACKAGE...]
//!
//! ```text
//! List of packages to update.
//!
//! Exclusive with --all. Required if --all not given.
//! ```
//!
//! -l --list
//!
//! ```text
//! Don't update any packages, just list them.
//! ```
//!
//! -f --force
//!
//! ```text
//! Update all packages, regardless of whether they need to be version-wise.
//! ```
//!
//! -i --allow-no-update
//!
//! ```text
//! Allow to fresh install packages passed as PACKAGE argument.
//!
//! This is useful, for example, in pairing with cargo-install-update-config(1).
//!
//! Off by default.
//! ```
//!
//! -g --git
//!
//! ```text
//! Also update git-originating packages.
//!
//! Off by default, because it's expensive.
//! ```
//!
//! -c --cargo-dir <CARGO_DIR>
//!
//! ```text
//! Set the directory containing cargo metadata.
//!
//! Required. Default: "$CARGO_HOME", then "$HOME/.cargo", otherwise manual.
//! ```
//!
//! -t --TEMP-dir <TEMP_DIR>
//!
//! ```text
//! Set the directory in which to clone git repositories.
//!
//! Adjoined with "cargo-update" as last segment.
//!
//! Required. Default: system temp, otherwise manual.
//! ```
//!
//! ## EXAMPLES
//!
//! `cargo install-update -a`
//!
//! ```text
//! Update all installed packages.
//!
//! Example output:
//! Updating registry `https://github.com/rust-lang/crates.io-index`
//!
//! Package Installed Latest Needs update
//! checksums v0.5.0 v0.5.2 Yes
//! treesize v0.2.0 v0.2.1 Yes
//! cargo-count v0.2.2 v0.2.2 No
//! cargo-graph v0.3.0 v0.3.0 No
//! cargo-outdated v0.2.0 v0.2.0 No
//! identicon v0.1.1 v0.1.1 No
//! racer v1.2.10 v1.2.10 No
//! rustfmt v0.6.2 v0.6.2 No
//!
//! Updating checksums
//! Updating registry `https://github.com/rust-lang/crates.io-index`
//! Downloading checksums v0.5.2
//! [...]
//! Compiling checksums v0.5.2
//! Finished release [optimized] target(s) in 95.2 secs
//! Replacing D:\Users\nabijaczleweli\.cargo\bin\checksums.exe
//!
//! Updating treesize
//! Updating registry `https://github.com/rust-lang/crates.io-index`
//! Downloading treesize v0.2.1
//! [...]
//! Compiling treesize v0.2.1
//! Finished release [optimized] target(s) in 76.77 secs
//! Replacing D:\Users\nabijaczleweli\.cargo\bin\treesize.exe
//!
//! Updated 2 packages.
//! ```
//!
//! `cargo install-update` *racer treesize cargo-cln*
//!
//! ```text
//! Only consider racer, treesize and cargo-cln for updates.
//! Since cargo-cln is not installed, it'll be ignored.
//!
//! Example output:
//! Updating registry `https://github.com/rust-lang/crates.io-index`
//!
//! Package Installed Latest Needs update
//! treesize v0.2.0 v0.2.1 Yes
//! racer v1.2.10 v1.2.10 No
//!
//! Updating treesize
//! Updating registry `https://github.com/rust-lang/crates.io-index`
//! Downloading treesize v0.2.1
//! [...]
//! Compiling treesize v0.2.1
//! Finished release [optimized] target(s) in 76.77 secs
//! Replacing D:\Users\nabijaczleweli\.cargo\bin\treesize.exe
//!
//! Updated 1 package.
//! ```
//!
//! `cargo install-update -al`
//!
//! ```text
//! List all installed packages, don't update any.
//!
//! Example output:
//! Updating registry `https://github.com/rust-lang/crates.io-index`
//!
//! Package Installed Latest Needs update
//! checksums v0.5.0 v0.5.2 Yes
//! treesize v0.2.0 v0.2.1 Yes
//! cargo-count v0.2.2 v0.2.2 No
//! cargo-graph v0.3.0 v0.3.0 No
//! cargo-outdated v0.2.0 v0.2.0 No
//! identicon v0.1.1 v0.1.1 No
//! racer v1.2.10 v1.2.10 No
//! rustfmt v0.6.2 v0.6.2 No
//! ```
//!
//! `cargo install-update -af`
//!
//! ```text
//! Update all installed packages.
//! Example output:
//! Updating registry `https://github.com/rust-lang/crates.io-index`
//!
//! Package Installed Latest Needs update
//! treesize v0.2.0 v0.2.1 Yes
//! racer v1.2.10 v1.2.10 No
//!
//! Updating racer
//! Updating registry `https://github.com/rust-lang/crates.io-index`
//! Downloading racer v1.2.10
//! [...]
//! Compiling racer v1.2.10
//! Finished release [optimized] target(s) in 51.43 secs
//! Replacing D:\Users\nabijaczleweli\.cargo\bin\racer.exe
//!
//! Updating clippy
//! Updating registry `https://github.com/rust-lang/crates.io-index`
//! Downloading clippy v0.0.99
//! [...]
//! Compiling clippy v0.0.99
//! [...]
//! error: failed to compile `clippy v0.0.99`
//!
//! Updating treesize
//! Updating registry `https://github.com/rust-lang/crates.io-index`
//! Downloading treesize v0.2.1
//! [...]
//! Compiling treesize v0.2.1
//! Finished release [optimized] target(s) in 76.77 secs
//! Replacing D:\Users\nabijaczleweli\.cargo\bin\treesize.exe
//!
//! Updating clippy_lints
//! Updating registry `https://github.com/rust-lang/crates.io-index`
//! error: specified package has no binaries
//!
//! Updated 2 packages.
//! Failed to update clippy, clippy_lints.
//! ```
//!
//! `cargo install-update -i checksums rustfmt treesize`
//!
//! ```text
//! Install specified packages, their installation status notwithstanding
//!
//! Example output:
//! Updating registry `https://github.com/rust-lang/crates.io-index`
//!
//! Package Installed Latest Needs update
//! checksums v0.5.2 Yes
//! treesize v0.2.0 v0.2.1 Yes
//! rustfmt v0.6.2 v0.6.2 No
//!
//! Installing checksums
//! Updating registry `https://github.com/rust-lang/crates.io-index`
//! Downloading checksums v0.5.2
//! [...]
//! Compiling checksums v0.5.2
//! Finished release [optimized] target(s) in 95.2 secs
//! Replacing D:\Users\nabijaczleweli\.cargo\bin\checksums.exe
//!
//! Updating treesize
//! Updating registry `https://github.com/rust-lang/crates.io-index`
//! Downloading treesize v0.2.1
//! [...]
//! Compiling treesize v0.2.1
//! Finished release [optimized] target(s) in 76.77 secs
//! Replacing D:\Users\nabijaczleweli\.cargo\bin\treesize.exe
//!
//! Updated 2 packages.
//! ```
//!
//! `cargo install-update -ag`
//!
//! ```text
//! Update all installed packages, including ones from git.
//!
//! Example output:
//! Updating registry `https://github.com/rust-lang/crates.io-index`
//!
//! Package Installed Latest Needs update
//! checksums v0.5.0 v0.5.2 Yes
//! cargo-count v0.2.2 v0.2.2 No
//!
//! Updating checksums
//! Updating registry `https://github.com/rust-lang/crates.io-index`
//! Downloading checksums v0.5.2
//! [...]
//! Compiling checksums v0.5.2
//! Finished release [optimized] target(s) in 95.2 secs
//! Replacing D:\Users\nabijaczleweli\.cargo\bin\checksums.exe
//!
//! Updated 1 package.
//!
//! Package Installed Latest Needs update
//! alacritty eb231b3 5f78857 Yes
//! chattium-oxide-client 108a7b9 108a7b9 No
//!
//! Updating alacritty from https://github.com/jwilm/alacritty
//! Updating git repository `https://github.com/jwilm/alacritty`
//! Installing alacritty v0.1.0 (https://github.com/jwilm/alacritty#5f788574)
//! [...]
//! Compiling alacritty v0.1.0
//! Finished release [optimized] target(s) in 127.6 secs
//! Replacing D:\Users\nabijaczleweli\.cargo\bin\alacritty.exe
//!
//! Updated 1 package.
//! ```
extern crate serde_derive;
extern crate lazy_static;
extern crate array_tool;
extern crate semver;
extern crate regex;
extern crate git2;
extern crate clap;
extern crate toml;
extern crate json;
extern crate url;
pub use ;