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

5 files changed, 129 insertions, 0 deletions

diff --git a/syn-mid/ci/azure-clippy.yml b/syn-mid/ci/azure-clippy.yml
new file mode 100644
index 0000000..22165c6
--- /dev/null
+++ b/syn-mid/ci/azure-clippy.yml
@@ -0,0 +1,31 @@
+jobs:
+- job: ${{ parameters.name }}
+  displayName: Clippy
+  pool:
+    vmImage: ubuntu-16.04
+
+  steps:
+    - template: azure-install-rust.yml
+      parameters:
+        rust: ${{ parameters.rust }}
+
+    - script: |
+        set +e
+        if rustup component add clippy; then
+          set -e
+        else
+          set -e
+          target=`curl https://rust-lang.github.io/rustup-components-history/x86_64-unknown-linux-gnu/clippy`
+          echo "'clippy' is unavailable on the toolchain '${{ parameters.rust }}', use the toolchain 'nightly-$target' instead"
+          rustup toolchain install nightly-$target
+          rustup default nightly-$target
+          rustup component add clippy
+          rustup toolchain list
+          rustc -Vv
+          cargo -V
+        fi
+        cargo clippy --version
+      displayName: rustup component add clippy
+
+    - script: cargo clippy --all --all-features
+      displayName: cargo clippy --all-features
diff --git a/syn-mid/ci/azure-install-rust.yml b/syn-mid/ci/azure-install-rust.yml
new file mode 100644
index 0000000..6b008c6
--- /dev/null
+++ b/syn-mid/ci/azure-install-rust.yml
@@ -0,0 +1,33 @@
+steps:
+  # Linux and macOS.
+  - script: |
+      set -e
+      curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain none
+      export PATH=$PATH:$HOME/.cargo/bin
+      rustup toolchain install $RUSTUP_TOOLCHAIN
+      rustup default $RUSTUP_TOOLCHAIN
+      echo "##vso[task.setvariable variable=PATH;]$PATH:$HOME/.cargo/bin"
+    env:
+      RUSTUP_TOOLCHAIN: ${{ parameters.rust }}
+    displayName: Install rust (*nix)
+    condition: not(eq(variables['Agent.OS'], 'Windows_NT'))
+
+  # Windows.
+  - script: |
+      curl -sSf -o rustup-init.exe https://win.rustup.rs
+      rustup-init.exe -y --default-toolchain none
+      set PATH=%PATH%;%USERPROFILE%\.cargo\bin
+      rustup toolchain install %RUSTUP_TOOLCHAIN%
+      rustup default %RUSTUP_TOOLCHAIN%
+      echo "##vso[task.setvariable variable=PATH;]%PATH%;%USERPROFILE%\.cargo\bin"
+    env:
+      RUSTUP_TOOLCHAIN: ${{ parameters.rust }}
+    displayName: Install rust (windows)
+    condition: eq(variables['Agent.OS'], 'Windows_NT')
+
+  # All platforms.
+  - script: |
+        rustup toolchain list
+        rustc -Vv
+        cargo -V
+    displayName: Query rust and cargo versions
diff --git a/syn-mid/ci/azure-rustdoc.yml b/syn-mid/ci/azure-rustdoc.yml
new file mode 100644
index 0000000..99a43ff
--- /dev/null
+++ b/syn-mid/ci/azure-rustdoc.yml
@@ -0,0 +1,13 @@
+jobs:
+- job: ${{ parameters.name }}
+  displayName: Rustdoc
+  pool:
+    vmImage: ubuntu-16.04
+
+  steps:
+    - template: azure-install-rust.yml
+      parameters:
+        rust: ${{ parameters.rust }}
+
+    - script: RUSTDOCFLAGS=-Dwarnings cargo doc --no-deps --all --all-features
+      displayName: cargo doc --all-features
diff --git a/syn-mid/ci/azure-rustfmt.yml b/syn-mid/ci/azure-rustfmt.yml
new file mode 100644
index 0000000..0b20da3
--- /dev/null
+++ b/syn-mid/ci/azure-rustfmt.yml
@@ -0,0 +1,18 @@
+jobs:
+- job: ${{ parameters.name }}
+  displayName: Rustfmt
+  pool:
+    vmImage: ubuntu-16.04
+
+  steps:
+    - template: azure-install-rust.yml
+      parameters:
+        rust: ${{ parameters.rust }}
+
+    - script: |
+        rustup component add rustfmt
+        cargo fmt --version
+      displayName: rustup component add rustfmt
+
+    - script: cargo fmt --all -- --check
+      displayName: cargo fmt -- --check
diff --git a/syn-mid/ci/azure-test.yml b/syn-mid/ci/azure-test.yml
new file mode 100644
index 0000000..32a56ed
--- /dev/null
+++ b/syn-mid/ci/azure-test.yml
@@ -0,0 +1,34 @@
+parameters:
+  cmd: check
+
+jobs:
+- job: ${{ parameters.name }}
+  displayName: ${{ parameters.displayName }} ${{ parameters.rust }}
+  strategy:
+    matrix:
+      Linux:
+        vmImage: ubuntu-16.04
+
+      ${{ if parameters.cross }}:
+        MacOS:
+          vmImage: macOS-10.13
+        Windows:
+          vmImage: vs2017-win2016
+  pool:
+    vmImage: $(vmImage)
+
+  steps:
+    - template: azure-install-rust.yml
+      parameters:
+        rust: ${{ parameters.rust }}
+
+    - script: |
+        cargo ${{ parameters.cmd }}
+        cargo ${{ parameters.cmd }} --all-features
+      displayName: cargo ${{ parameters.cmd }}
+
+    - ${{ if eq(parameters.rust, 'nightly') }}:
+      - script: |
+          cargo update -Zminimal-versions
+          cargo check --all-features
+        displayName: cargo check -Zminimal-versions