Add structopt dependency in version 0.3.7

This patch series replaces argparse with structopt in the argument
handling code. As a first step, we need structopt as a dependency.

Import subrepo structopt/:structopt at efbdda4753592e27bc430fb01f7b9650b2f3174d
Import subrepo bitflags/:bitflags at 30668016aca6bd3b02c766e8347e0b4080d4c296
Import subrepo clap/:clap at 784524f7eb193e35f81082cc69454c8c21b948f7
Import subrepo heck/:heck at 093d56fbf001e1506e56dbfa38631d99b1066df1
Import subrepo proc-macro-error/:proc-macro-error at 6c4cfe79a622c5de8ae68557993542be46eacae2
Import subrepo proc-macro2/:proc-macro2 at d5d48eddca4566e5438e8a2cbed4a74e049544de
Import subrepo quote/:quote at 727436c6c137b20f0f34dde5d8fda2679b9747ad
Import subrepo rustversion/:rustversion at 0c5663313516263059ce9059ef81fc7a1cf655ca
Import subrepo syn-mid/:syn-mid at 5d3d85414a9e6674e1857ec22a87b96e04a6851a
Import subrepo syn/:syn at e87c27e87f6f4ef8919d0372bdb056d53ef0d8f3
Import subrepo textwrap/:textwrap at abcd618beae3f74841032aa5b53c1086b0a57ca2
Import subrepo unicode-segmentation/:unicode-segmentation at 637c9874c4fe0c205ff27787faf150a40295c6c3
Import subrepo unicode-width/:unicode-width at 3033826f8bf05e82724140a981d5941e48fce393
Import subrepo unicode-xid/:unicode-xid at 4baae9fffb156ba229665b972a9cd5991787ceb7

1 files changed, 193 insertions, 0 deletions

diff --git a/structopt/tests/nested-subcommands.rs b/structopt/tests/nested-subcommands.rs
new file mode 100644
index 0000000..1fbd166
--- /dev/null
+++ b/structopt/tests/nested-subcommands.rs
@@ -0,0 +1,193 @@
+// Copyright 2018 Guillaume Pinot (@TeXitoi) <texitoi@texitoi.eu>
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use structopt::StructOpt;
+
+#[derive(StructOpt, PartialEq, Debug)]
+struct Opt {
+    #[structopt(short, long)]
+    force: bool,
+    #[structopt(short, long, parse(from_occurrences))]
+    verbose: u64,
+    #[structopt(subcommand)]
+    cmd: Sub,
+}
+
+#[derive(StructOpt, PartialEq, Debug)]
+enum Sub {
+    Fetch {},
+    Add {},
+}
+
+#[derive(StructOpt, PartialEq, Debug)]
+struct Opt2 {
+    #[structopt(short, long)]
+    force: bool,
+    #[structopt(short, long, parse(from_occurrences))]
+    verbose: u64,
+    #[structopt(subcommand)]
+    cmd: Option<Sub>,
+}
+
+#[test]
+fn test_no_cmd() {
+    let result = Opt::clap().get_matches_from_safe(&["test"]);
+    assert!(result.is_err());
+
+    assert_eq!(
+        Opt2 {
+            force: false,
+            verbose: 0,
+            cmd: None
+        },
+        Opt2::from_clap(&Opt2::clap().get_matches_from(&["test"]))
+    );
+}
+
+#[test]
+fn test_fetch() {
+    assert_eq!(
+        Opt {
+            force: false,
+            verbose: 3,
+            cmd: Sub::Fetch {}
+        },
+        Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-vvv", "fetch"]))
+    );
+    assert_eq!(
+        Opt {
+            force: true,
+            verbose: 0,
+            cmd: Sub::Fetch {}
+        },
+        Opt::from_clap(&Opt::clap().get_matches_from(&["test", "--force", "fetch"]))
+    );
+}
+
+#[test]
+fn test_add() {
+    assert_eq!(
+        Opt {
+            force: false,
+            verbose: 0,
+            cmd: Sub::Add {}
+        },
+        Opt::from_clap(&Opt::clap().get_matches_from(&["test", "add"]))
+    );
+    assert_eq!(
+        Opt {
+            force: false,
+            verbose: 2,
+            cmd: Sub::Add {}
+        },
+        Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-vv", "add"]))
+    );
+}
+
+#[test]
+fn test_badinput() {
+    let result = Opt::clap().get_matches_from_safe(&["test", "badcmd"]);
+    assert!(result.is_err());
+    let result = Opt::clap().get_matches_from_safe(&["test", "add", "--verbose"]);
+    assert!(result.is_err());
+    let result = Opt::clap().get_matches_from_safe(&["test", "--badopt", "add"]);
+    assert!(result.is_err());
+    let result = Opt::clap().get_matches_from_safe(&["test", "add", "--badopt"]);
+    assert!(result.is_err());
+}
+
+#[derive(StructOpt, PartialEq, Debug)]
+struct Opt3 {
+    #[structopt(short, long)]
+    all: bool,
+    #[structopt(subcommand)]
+    cmd: Sub2,
+}
+
+#[derive(StructOpt, PartialEq, Debug)]
+enum Sub2 {
+    Foo {
+        file: String,
+        #[structopt(subcommand)]
+        cmd: Sub3,
+    },
+    Bar {},
+}
+
+#[derive(StructOpt, PartialEq, Debug)]
+enum Sub3 {
+    Baz {},
+    Quux {},
+}
+
+#[test]
+fn test_subsubcommand() {
+    assert_eq!(
+        Opt3 {
+            all: true,
+            cmd: Sub2::Foo {
+                file: "lib.rs".to_string(),
+                cmd: Sub3::Quux {}
+            }
+        },
+        Opt3::from_clap(
+            &Opt3::clap().get_matches_from(&["test", "--all", "foo", "lib.rs", "quux"])
+        )
+    );
+}
+
+#[derive(StructOpt, PartialEq, Debug)]
+enum SubSubCmdWithOption {
+    Remote {
+        #[structopt(subcommand)]
+        cmd: Option<Remote>,
+    },
+    Stash {
+        #[structopt(subcommand)]
+        cmd: Stash,
+    },
+}
+#[derive(StructOpt, PartialEq, Debug)]
+enum Remote {
+    Add { name: String, url: String },
+    Remove { name: String },
+}
+
+#[derive(StructOpt, PartialEq, Debug)]
+enum Stash {
+    Save,
+    Pop,
+}
+
+#[test]
+fn sub_sub_cmd_with_option() {
+    fn make(args: &[&str]) -> Option<SubSubCmdWithOption> {
+        SubSubCmdWithOption::clap()
+            .get_matches_from_safe(args)
+            .ok()
+            .map(|m| SubSubCmdWithOption::from_clap(&m))
+    }
+    assert_eq!(
+        Some(SubSubCmdWithOption::Remote { cmd: None }),
+        make(&["", "remote"])
+    );
+    assert_eq!(
+        Some(SubSubCmdWithOption::Remote {
+            cmd: Some(Remote::Add {
+                name: "origin".into(),
+                url: "http".into()
+            })
+        }),
+        make(&["", "remote", "add", "origin", "http"])
+    );
+    assert_eq!(
+        Some(SubSubCmdWithOption::Stash { cmd: Stash::Save }),
+        make(&["", "stash", "save"])
+    );
+    assert_eq!(None, make(&["", "stash"]));
+}