[chore] use our own logging implementation (#716)

* first commit

Signed-off-by: kim <grufwub@gmail.com>

* replace logging with our own log library

Signed-off-by: kim <grufwub@gmail.com>

* fix imports

Signed-off-by: kim <grufwub@gmail.com>

* fix log imports

Signed-off-by: kim <grufwub@gmail.com>

* add license text

Signed-off-by: kim <grufwub@gmail.com>

* fix package import cycle between config and log package

Signed-off-by: kim <grufwub@gmail.com>

* fix empty kv.Fields{} being passed to WithFields()

Signed-off-by: kim <grufwub@gmail.com>

* fix uses of log.WithFields() with whitespace issues and empty slices

Signed-off-by: kim <grufwub@gmail.com>

* *linter related grumbling*

Signed-off-by: kim <grufwub@gmail.com>

* gofmt the codebase! also fix more log.WithFields() formatting issues

Signed-off-by: kim <grufwub@gmail.com>

* update testrig code to match new changes

Signed-off-by: kim <grufwub@gmail.com>

* fix error wrapping in non fmt.Errorf function

Signed-off-by: kim <grufwub@gmail.com>

* add benchmarking of log.Caller() vs non-cached

Signed-off-by: kim <grufwub@gmail.com>

* fix syslog tests, add standard build tags to test runner to ensure consistency

Signed-off-by: kim <grufwub@gmail.com>

* make syslog tests more robust

Signed-off-by: kim <grufwub@gmail.com>

* fix caller depth arithmatic (is that how you spell it?)

Signed-off-by: kim <grufwub@gmail.com>

* update to use unkeyed fields in kv.Field{} instances

Signed-off-by: kim <grufwub@gmail.com>

* update go-kv library

Signed-off-by: kim <grufwub@gmail.com>

* update libraries list

Signed-off-by: kim <grufwub@gmail.com>

* fuck you linter get nerfed

Signed-off-by: kim <grufwub@gmail.com>

Co-authored-by: tobi <31960611+tsmethurst@users.noreply.github.com>

vendor/codeberg.org/gruf/go-logger/v2/LICENSE

@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) 2022 gruf
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

vendor/codeberg.org/gruf/go-logger/v2/level/levels.go

@@ -0,0 +1,49 @@
+package level
+
+// LEVEL defines a level of logging.
+type LEVEL uint8
+
+// Default levels of logging.
+const (
+	UNSET LEVEL = 0
+	PANIC LEVEL = 1
+	FATAL LEVEL = 50
+	ERROR LEVEL = 100
+	WARN  LEVEL = 150
+	INFO  LEVEL = 200
+	DEBUG LEVEL = 250
+	TRACE LEVEL = 254
+	ALL   LEVEL = ^LEVEL(0)
+)
+
+// CanLog returns whether an incoming log of 'lvl' can be logged against receiving level.
+func (loglvl LEVEL) CanLog(lvl LEVEL) bool {
+	return loglvl > lvl
+}
+
+// Levels defines a mapping of log LEVELs to formatted level strings.
+type Levels [int(ALL) + 1]string
+
+// Default returns the default set of log levels.
+func Default() Levels {
+	return Levels{
+		TRACE: "TRACE",
+		DEBUG: "DEBUG",
+		INFO:  "INFO",
+		WARN:  "WARN",
+		ERROR: "ERROR",
+		FATAL: "FATAL",
+		PANIC: "PANIC",
+
+		// we set these just so that
+		// it can be debugged when someone
+		// attempts to log with ALL/UNSET
+		ALL:   "{all}",
+		UNSET: "{unset}",
+	}
+}
+
+// Get fetches the level string for the provided value.
+func (l Levels) Get(lvl LEVEL) string {
+	return l[int(lvl)]
+}