Replace reqwest with ureq

ureq has less dependencies, builds faster and builds statically out of
the box; we no longer need the reqwest feature nor require curl in
static builds.

The only drawback is that we now have to deal with proxies manually.

.github/workflows/release.yml

@@ -14,7 +14,6 @@ jobs:
         include:
           - os: ubuntu-latest
             target: x86_64-unknown-linux-musl
-            flags: --no-default-features
           - os: macOS-latest
             target: x86_64-apple-darwin
           - os: windows-latest
@@ -37,7 +36,7 @@ jobs:
         shell: bash
         id: build
         run: |
-            OUTDIR="$(cargo build --locked --target '${{ matrix.target }}' ${{ matrix.flags }} --release --message-format=json-render-diagnostics |
+            OUTDIR="$(cargo build --locked --target '${{ matrix.target }}' --release --message-format=json-render-diagnostics |
                 jq -r 'select(.out_dir) | select(.package_id | startswith("mdcat ")) | .out_dir')"
             echo "::set-output name=outdir::$OUTDIR"
       - name: Strip binary

.github/workflows/test.yml

@@ -66,7 +66,6 @@ jobs:
             os: ubuntu-latest
           - target: x86_64-unknown-linux-musl
             os: ubuntu-latest
-            flags: --no-default-features
           - target: x86_64-apple-darwin
             os: macOS-latest
           - target: x86_64-pc-windows-msvc
@@ -98,22 +97,22 @@ jobs:
         uses: actions-rs/cargo@v1
         with:
           command: build
-          args: --all-targets --locked --target ${{ matrix.target }} ${{ matrix.flags }}
+          args: --all-targets --locked --target ${{ matrix.target }}
       # Lint
       - name: Clippy
         uses: actions-rs/clippy-check@v1
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
-          args: --all-targets --locked --target ${{ matrix.target }} ${{ matrix.flags }}
+          args: --all-targets --locked --target ${{ matrix.target }}
           name: clippy-${{ matrix.rust}}-${{ matrix.target }}
       # Test
       - name: Test
         uses: actions-rs/cargo@v1
         with:
           command: test
-          args: --locked --target ${{ matrix.target }} ${{ matrix.flags }}
+          args: --locked --target ${{ matrix.target }}
       - name: Format sample
         uses: actions-rs/cargo@v1
         with:
           command: run
-          args: --target ${{ matrix.target }} ${{ matrix.flags }} -- sample/common-mark.md
+          args: --target ${{ matrix.target }} -- sample/common-mark.md

CHANGELOG.md

@@ -8,6 +8,16 @@ To publish a new release run `scripts/release` from the project directory.
 
 ## [Unreleased]
 
+### Changed
+- Replace `reqwest` with `ureq` to fetch images via HTTP/HTTPS (see [GH-169]);
+    the latter has considerably less dependencies and builds faster.
+    It also builds statically out of the box, hence the static musl builds no longer require `curl` to fetch images.
+
+### Removed
+- The `reqwest` cargo feature, see above and [GH-169].
+
+[GH-169]: https://github.com/lunaryorn/mdcat/pull/169
+
 ## [0.22.1] – 2020-10-17
 
 ### Fixed