Prometheus formatting support + refactor

.github/workflows/ci.yml

@@ -16,7 +16,7 @@ jobs:
     # https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions#jobsjob_idstrategymatrix
     strategy:
       matrix:
-        otp: [26, 27]
+        otp: [26, 27, 28]
         os: [ubuntu-latest]
 
     steps:
@@ -34,8 +34,5 @@ jobs:
       - name: DIALYZE
         run: make dialyze
 
-      - name: UNIT TEST
-        run: make eunit
-
       - name: INTEGRATION TEST
         run: make ct

LICENSE-APACHE2

@@ -187,7 +187,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright 2007-2023 Broadcom. All Rights Reserved. The term Broadcom refers to Broadcom Inc. and/or its subsidiaries.
+   Copyright 2007-2025 Broadcom. All Rights Reserved. The term Broadcom refers to Broadcom Inc. and/or its subsidiaries.
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.

Makefile

@@ -2,19 +2,18 @@ PROJECT = seshat
 PROJECT_DESCRIPTION = Metrics library built for RabbitMQ, with a Prometheus exposition format built-in
 PROJECT_VERSION = 0.6.1
 
+dep_cth_styledout = git https://github.com/rabbitmq/cth_styledout.git master
+TEST_DEPS = cth_styledout
+CT_OPTS = -ct_hooks cth_styledout
+
 define PROJECT_ENV
 [
 ]
 endef
 
 LOCAL_DEPS = sasl crypto
 
-# TEST_DEPS=eunit_formatters
-TEST_DEPS=eunit_formatters
-
 # PLT_APPS += eunit syntax_tools erts kernel stdlib common_test inets ssh ssl meck gen_batch_server inet_tcp_proxy
 
-PLT_APPS += eunit
 DIALYZER_OPTS += --src -r test
-EUNIT_OPTS = no_tty, {report, {eunit_progress, [colored, profile]}}
 include $(if $(ERLANG_MK_FILENAME),$(ERLANG_MK_FILENAME),erlang.mk)

README.md

@@ -46,9 +46,9 @@ counters:add(CountersRef, ?C_CARROTS_EATEN, 3),
 ```
 To inspect the counters on the system for a given group do:
 ```erlang
-Overview = seshat:overview(pets),
+Counters = seshat:counters(pets),
 ```
-Overview is a map of `#{Name => #{FieldName, Count}}`. E.g. for the above
+Counters is a map of `#{Name => #{FieldName, Count}}`. E.g. for the above
 it would look like:
 ```erlang 
 #{rabbit => #{carrots_eaten_total => 3, holes_dug_total => 0}}
@@ -66,12 +66,12 @@ There is also `seshat:format(Groups)` which for the above case will return:
       values => #{rabbit => 0}}}
 ```
 
-
 This format uses the counter `Name` as a unique value label for the metrics.
 This formatting is more suitable for e.g. prometheus export. The counter name
 doesn't have to be an atom. It can also be a list of two-tuples or
 a pre-formatted binary.
 
+`seshat:format/2` allows additional formatting options.
 
 ## Copyright and License