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, 162 insertions, 0 deletions

diff --git a/structopt/tests/flags.rs b/structopt/tests/flags.rs
new file mode 100644
index 0000000..39a5dc3
--- /dev/null
+++ b/structopt/tests/flags.rs
@@ -0,0 +1,162 @@
+// 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;
+
+#[test]
+fn unique_flag() {
+    #[derive(StructOpt, PartialEq, Debug)]
+    struct Opt {
+        #[structopt(short, long)]
+        alice: bool,
+    }
+
+    assert_eq!(
+        Opt { alice: false },
+        Opt::from_clap(&Opt::clap().get_matches_from(&["test"]))
+    );
+    assert_eq!(
+        Opt { alice: true },
+        Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a"]))
+    );
+    assert_eq!(
+        Opt { alice: true },
+        Opt::from_clap(&Opt::clap().get_matches_from(&["test", "--alice"]))
+    );
+    assert!(Opt::clap().get_matches_from_safe(&["test", "-i"]).is_err());
+    assert!(Opt::clap()
+        .get_matches_from_safe(&["test", "-a", "foo"])
+        .is_err());
+    assert!(Opt::clap()
+        .get_matches_from_safe(&["test", "-a", "-a"])
+        .is_err());
+    assert!(Opt::clap()
+        .get_matches_from_safe(&["test", "-a", "--alice"])
+        .is_err());
+}
+
+#[test]
+fn multiple_flag() {
+    #[derive(StructOpt, PartialEq, Debug)]
+    struct Opt {
+        #[structopt(short, long, parse(from_occurrences))]
+        alice: u64,
+        #[structopt(short, long, parse(from_occurrences))]
+        bob: u8,
+    }
+
+    assert_eq!(
+        Opt { alice: 0, bob: 0 },
+        Opt::from_clap(&Opt::clap().get_matches_from(&["test"]))
+    );
+    assert_eq!(
+        Opt { alice: 1, bob: 0 },
+        Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a"]))
+    );
+    assert_eq!(
+        Opt { alice: 2, bob: 0 },
+        Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a", "-a"]))
+    );
+    assert_eq!(
+        Opt { alice: 2, bob: 2 },
+        Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a", "--alice", "-bb"]))
+    );
+    assert_eq!(
+        Opt { alice: 3, bob: 1 },
+        Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-aaa", "--bob"]))
+    );
+    assert!(Opt::clap().get_matches_from_safe(&["test", "-i"]).is_err());
+    assert!(Opt::clap()
+        .get_matches_from_safe(&["test", "-a", "foo"])
+        .is_err());
+}
+
+fn parse_from_flag(b: bool) -> std::sync::atomic::AtomicBool {
+    std::sync::atomic::AtomicBool::new(b)
+}
+
+#[test]
+fn non_bool_flags() {
+    #[derive(StructOpt, Debug)]
+    struct Opt {
+        #[structopt(short, long, parse(from_flag = parse_from_flag))]
+        alice: std::sync::atomic::AtomicBool,
+        #[structopt(short, long, parse(from_flag))]
+        bob: std::sync::atomic::AtomicBool,
+    }
+
+    let falsey = Opt::from_clap(&Opt::clap().get_matches_from(&["test"]));
+    assert!(!falsey.alice.load(std::sync::atomic::Ordering::Relaxed));
+    assert!(!falsey.bob.load(std::sync::atomic::Ordering::Relaxed));
+
+    let alice = Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a"]));
+    assert!(alice.alice.load(std::sync::atomic::Ordering::Relaxed));
+    assert!(!alice.bob.load(std::sync::atomic::Ordering::Relaxed));
+
+    let bob = Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-b"]));
+    assert!(!bob.alice.load(std::sync::atomic::Ordering::Relaxed));
+    assert!(bob.bob.load(std::sync::atomic::Ordering::Relaxed));
+
+    let both = Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-b", "-a"]));
+    assert!(both.alice.load(std::sync::atomic::Ordering::Relaxed));
+    assert!(both.bob.load(std::sync::atomic::Ordering::Relaxed));
+}
+
+#[test]
+fn combined_flags() {
+    #[derive(StructOpt, PartialEq, Debug)]
+    struct Opt {
+        #[structopt(short, long)]
+        alice: bool,
+        #[structopt(short, long, parse(from_occurrences))]
+        bob: u64,
+    }
+
+    assert_eq!(
+        Opt {
+            alice: false,
+            bob: 0
+        },
+        Opt::from_clap(&Opt::clap().get_matches_from(&["test"]))
+    );
+    assert_eq!(
+        Opt {
+            alice: true,
+            bob: 0
+        },
+        Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a"]))
+    );
+    assert_eq!(
+        Opt {
+            alice: true,
+            bob: 0
+        },
+        Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a"]))
+    );
+    assert_eq!(
+        Opt {
+            alice: false,
+            bob: 1
+        },
+        Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-b"]))
+    );
+    assert_eq!(
+        Opt {
+            alice: true,
+            bob: 1
+        },
+        Opt::from_clap(&Opt::clap().get_matches_from(&["test", "--alice", "--bob"]))
+    );
+    assert_eq!(
+        Opt {
+            alice: true,
+            bob: 4
+        },
+        Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-bb", "-a", "-bb"]))
+    );
+}