1 files changed, 52 insertions, 0 deletions
diff --git a/bin/mermaid-cli-in-ci b/bin/mermaid-cli-in-ci
new file mode 100755
index 0000000..07700fa
--- /dev/null
+++ b/bin/mermaid-cli-in-ci
@@ -0,0 +1,52 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+set -x
+
+# Bump this to "clear" the cache.
+# Actually, it just causes us to ignore previous cached results.
+cache_clear_token=2023-11-09c
+
+cache_dir="cache/$CI_JOB_IMAGE,$cache_clear_token,puppeteer"
+local_dir="$HOME/.cache/puppeteer"
+
+if test -d "$cache_dir"; then
+    mkdir -p "$local_dir"/.
+    cp -a "$cache_dir"/. "$local_dir"/.
+fi
+
+./bin/via-yarn-install-in-ci mmdc https://github.com/mermaid-js/mermaid-cli \
+    bba0240ad87f6fbf44d8a24941e37f4bc2c8bf30
+
+(
+    cd "$local_dir"
+    find . -printf '%y %p %l\n'  | sort
+    find . -type f | sort | xargs sha256sum --
+) >puppeteer-cache-got-listings
+
+# Empirically, the mermaid-cli locked install produced a very old
+# chromium today.  So I suspect it's not fetching "latest", but a controlled
+# version.  Nevertheless, we should check that what we got is actually
+# the same and hasn't been changed by Google (or something on the way).
+
+# Doing this now isn't ideal, because I don't actually know if
+# the mermaid-cli *install* process runs anything from here.
+# But I don't think it runs the main chrome binary, since at one point
+# in our tests we got as far as this and then the chrome binary
+# failed with due to a missing OS shared library.
+
+# This expected output listing shouldn't be in bin/ but the best way
+# to fix that would be to rename the whole bin directory to maint.
+diff -u bin/puppeteer-cache-expect-listings puppeteer-cache-got-listings 
+
+if ! test -d "$cache_dir"; then
+    mkdir -p "$cache_dir"
+    cp -a "$local_dir"/. "$cache_dir"/.
+fi
+
+# This is the easiest way to get the shared libraries that chromium
+# depends on.  Obviously, using the Debian package's dependencies
+# is totally wrong, but it works in practice, and we don't have a proper
+# dependency list from the binaries from the ad-hoc downloads.
+apt-get install -y chromium