fix: install the latest conan through pip on macos

conan-io/conan-center-index#5197

.circleci/config.yml

@@ -249,7 +249,14 @@ jobs:
           command: |
             set -x
             brew bundle
+
+            mkdir -p .cache
+            python3 -m venv .cache/venv
+            source .cache/venv/bin/activate
+            pip3 install --upgrade -r requirements.txt
+
             conan profile new default --detect
+
           environment:
             HOMEBREW_NO_AUTO_UPDATE: 1
             CONAN_USER_HOME: '/Users/distiller/project/.cache'
@@ -269,7 +276,8 @@ jobs:
       - run:
           name: Run macOS << parameters.macos_arch >> build
           command: |
-            echo "DATA_FULL_DOMAIN=${DATA_FULL_DOMAIN}" >> .env
+            source .cache/venv/bin/activate
+            echo "DATA_FULL_DOMAIN=https://data.master.clades.nextstrain.org" >> .env
             make prod
           environment:
             CONAN_USER_HOME: '/Users/distiller/project/.cache'

.gitignore

@@ -30,3 +30,4 @@ paper/paper.pdf
 tmp
 build/
 *.bak
+Brewfile.lock.json

Brewfile

@@ -2,7 +2,6 @@ brew "autoconf"
 brew "automake"
 brew "ccache"
 brew "cmake"
-brew "conan"
 brew "coreutils"
 brew "cppcheck"
 brew "ghr"

docs/dev/developers-guide-cli.md

@@ -55,14 +55,19 @@ The easiest way to start the development is to use the included docker container
     💡 Quick install for macOS  (click to expand)
     </summary>
 
-    You need to install XCode command line tools. After that you can install remaining required dependencies using [Homebrew](https://brew.sh/) and pip
+    You need to install XCode command line tools. After that you can install remaining required dependencies using [Homebrew](https://brew.sh/) and pip (into a Python virtual environment)
 
     ```
     xcode-select --install
 
     cd nextclade
     brew bundle --file=Brewfile
 
+    mkdir -p .cache
+    python3 -m venv .cache/venv
+    source .cache/venv/bin/activate
+    pip3 install --upgrade -r requirements.txt
+
     ```
     </details>
     </p>