Update cache every run. Add /compiled and /logs. Make key sensitive to matrix. (#71)

Co-authored-by: Rik Huijzer <github@huijzer.xyz>
Co-authored-by: Sascha Mann <git@mail.saschamann.eu>

handle_caches.jl

@@ -0,0 +1,45 @@
+using Pkg, Dates
+function handle_caches()
+    repo = ARGS[1]
+    func = ARGS[2]
+    restore_key = get(ARGS, 3, "")
+
+    if func == "list"
+        println("Listing existing caches")
+        run(`gh cache list --limit 100 --repo $repo`)
+    elseif func == "rm"
+        caches = String[]
+        for _ in 1:5 # limit to avoid accidental rate limiting
+            hits = split(strip(read(`gh cache list --limit 100 --repo $repo`, String)), keepempty=false)
+            search_again = length(hits) == 100
+            filter!(contains(restore_key), hits)
+            isempty(hits) && break
+            # We can delete everything that matches the restore key because the new cache is saved later.
+            for c in hits
+                try
+                    run(`gh cache delete $(split(c)[1]) --repo $repo`)
+                catch e
+                    @error e
+                end
+            end
+            append!(caches, hits)
+            search_again || break
+        end
+        if isempty(caches)
+            println("No existing caches found for restore key `$restore_key`")
+        else
+            println("$(length(caches)) existing caches deleted that match restore key `$restore_key`:")
+            println.(caches)
+        end
+    else
+        throw(ArgumentError("Unexpected second argument: $func"))
+    end
+end
+
+try
+    # do a gc with the standard 7-day delay
+    Pkg.gc()
+    handle_caches()
+catch e
+    @error "An error occurred while managing existing caches" e
+end