Try to determine registry name in CompatHelper workflow

Author: mtfishman

.github/workflows/CompatHelper.yml

@@ -8,19 +8,19 @@ on:
         default: "1"
         required: false
         type: string
-      local-registry-names:
-        description: 'Names of registries besides General to use. Specified by providing the name of the registries
-                      as a newline (\n) seperated list. Should correspond to the registry URLs listed in `local-registry-urls`.'
-        default: ""
-        required: false
-        type: string
       local-registry-urls:
         description: 'URLs of registries besides General to use. Specified by providing the url (https/ssh) to the Github
                       repositories as a newline (\n) seperated list. Should correspond to the registry names listed in
                       `local-registry-names`.'
         default: ""
         required: false
         type: string
+      local-registry-names:
+        description: 'Names of registries besides General to use. Specified by providing the name of the registries
+                      as a newline (\n) seperated list. Should correspond to the registry URLs listed in `local-registry-urls`.'
+        default: ""
+        required: false
+        type: string
 
 jobs:
   CompatHelper:
@@ -60,12 +60,17 @@ jobs:
               url = "https://github.com/JuliaRegistries/General.git",
             )
           ]
-          if !isempty("${{ inputs.local-registry-names }}") && !isempty("${{ inputs.local-registry-urls }}")
-            registry_names = split("${{ inputs.local-registry-names }}", "\n") .|> string
+          if !isempty("${{ inputs.local-registry-urls }}")
             registry_urls = split("${{ inputs.local-registry-urls }}", "\n") .|> string
-            for (registry_name, registry_url) in zip(registry_names, registry_urls)
-              (isempty(registry_name) || isempty(registry_url)) && continue
-              push!(registries, Pkg.RegistrySpec(; name=registry_name, url=registry_url))
+            registry_names = if !isempty("${{ inputs.local-registry-names }}")
+              split("${{ inputs.local-registry-names }}", "\n") .|> string
+            else
+              # Guess the registry name from the last part of the repository URL.
+              map(registry_url -> first(split(last(split(registry_url, '/')), '.')), registry_urls)
+            end
+            for (registry_url, registry_name) in zip(registry_urls, registry_names)
+              isempty(registry_url) && continue
+              push!(registries, Pkg.RegistrySpec(; url=registry_url, name=registry_name))
             end
           end
           CompatHelper.main(; registries, bump_version=true)

README.md

@@ -181,10 +181,13 @@ The CompatHelper workflow is designed to periodically check dependencies for bre
 releases, and if so make PRs to bump the compat versions. By default this workflow
 checks the Julia [General registry](https://github.com/JuliaRegistries/General)
 for breaking releases of dependencies, but you can add other registries
-by specifying the registry names in the `local-registry-names` option
-and the registry repository URLs in the `local-registy-urls` option.
-Both should be strings with registries seperated by a newline character (`\n`).
-Here is an example workflow:
+by specifying the registry URLs with the `local-registy-urls` option,
+which should be strings with registry URLs seperated by a newline character (`\n`).
+Registry names will be guess from the URLs, for example if a registry URL
+is "https://github.com/ITensor/ITensorRegistry.git" we will guess that the
+registry name is "ITensorRegistry". If that is not the case for one or more registry,
+you will need to specify all of the registry names as well using the `local-registry-names`
+in the same format. Here is an example workflow:
 
 ```yaml
 name: "CompatHelper"
@@ -202,6 +205,5 @@ jobs:
     name: "CompatHelper"
     uses: "ITensor/ITensorActions/.github/workflows/CompatHelper.yml@main"
     with:
-      local-registry-names: "ITensorRegistry"
       local-registry-urls: "https://github.com/ITensor/ITensorRegistry.git"
 ```