Migrate the usage of CommonJS specific code and imports to ESM. Roughly
summarised this:
- Changes all require() calls to import statement or expressions.
- Changes usage of module.exports to export statements.
- Replaces require.resolve with import.meta.resolve.
- Replaces conditional imports with conditional subpath imports.
- Replaces module === require.main with import.meta.main.
- Adds the full filename with extention to all relative imports.
- Changes all usage of __dirname and __filename to their import.meta
equivalents.
- Sets "type": "module" in package.json files.
- Removes usage of "use strict".
- Adds .ts an an alias of .js for the webpack build.
Due to differences in how require and import resolves files the plugin
entrypoints will have to include the filename and extension after this
migration in order to work.
The a and A felt lonely being the only letters included. Add the other
letters in the ASCII character set as there was no good reason to leave
them out.
The logic for turning a key back into the labelles that defined it would
not account for the labels values possibly including a comma or equal
sign, which in turn broke the logic for handling these metrics.
Fix by properly parsing the keys.
Move all functions and classes currently available through lib/name and
libName to be under a single flat namespace in lib. This make
reorganising the lib namespace much simpler as the location of symbols
can move without breaking the consumers of lib.
The multi-entrypoint design was already problematic for the web plugin
system which couldn't effectively use it due to how webpack's shared
module system is awkward to set up with multiple entrypoints per package.
Move common functionality between labeled collectors out of
ValueCollector and into a new LabeledCollector class, and use this as
the basis for implementing a Histogram collector.
Split up codebase into the packages @clsterio/lib, @clusterio/master,
@clusterio/slave, and @clusterio/ctl using lerna to manage them. This
will allow deployment to use only the parts needed reducing install
size, and better separate the code into shared library, master, slave
and control.
Add an implementation of a Prometheus client. This is because the
prom-client implementation seems to have missunderstood how Prometheus
is supposed to work and doesn't allow updating collectors via
asynchronous callback.
Hornwitser