Copy maint/via-cargo-install-in-ci from arti.git

From arti.git#80ab4331642c8690aca9facd91d8022b23bcd189

1 files changed, 20 insertions, 0 deletions

diff --git a/bin/via-cargo-install-in-ci b/bin/via-cargo-install-in-ci
new file mode 100755
index 0000000..c104ff9
--- /dev/null
+++ b/bin/via-cargo-install-in-ci
@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+# Bump this to "clear" the cache.
+# Actually, it just causes us to ignore previous cached results.
+cache_clear_token=2023-09-11
+
+cache_dir=cache/"$CI_JOB_IMAGE","$cache_clear_token"
+
+mkdir -p "$cache_dir"
+
+for cmd in "$@"; do
+    cache="$cache_dir/$cmd"
+
+    if cp "$cache" "$CARGO_HOME"/bin/; then continue; fi
+
+    cargo install --locked "$cmd"
+    cp -v "$CARGO_HOME/bin/$cmd" "$cache"
+done