From da17dd286c9cbf861188a10db9f0ee9b071d1769 Mon Sep 17 00:00:00 2001
From: Victor Lin <13424970+victorlin@users.noreply.github.com>
Date: Wed, 17 Jan 2024 12:17:48 -0800
Subject: [PATCH] Add cache for Micromamba installation

This endpoint sometimes fails to resolve, so caching should help. Cache
the entire ~/.local/bin folder to keep things simple.
---
 .github/workflows/ci.yaml | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index c92c449..47778d2 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -38,10 +38,21 @@ jobs:
     name: build and test (os=${{ matrix.os }})
     runs-on: ${{ matrix.os }}
     steps:
+      - name: Cache ~/.local/bin
+        id: cache-local-bin
+        uses: actions/cache@v4
+        with:
+          path: ~/.local/bin
+          # Cache should be valid for a maximum of 7 days.
+          # <https://docs.github.com/en/actions/using-workflows/caching-dependencies-to-speed-up-workflows#usage-limits-and-eviction-policy>
+          key: ${{ runner.os }}-local-bin
+
       - name: Install Micromamba
-        run: |
-          curl -fsSL --proto 'https=' https://micro.mamba.pm/install.sh | bash
-          echo ~/.local/bin >> "$GITHUB_PATH"
+        if: steps.cache-local-bin.outputs.cache-hit != 'true'
+        run: curl -fsSL --proto 'https=' https://micro.mamba.pm/install.sh | bash
+
+      - name: Add ~/.local/bin to path
+        run: echo ~/.local/bin >> "$GITHUB_PATH"
 
       - uses: actions/checkout@v3