Files
pixa/internal/app/app.go
T
sneak 018c12a8d2
check / check (push) Waiting to run
Count hits, misses, fetches and transforms as Prometheus counters (closes #311)
The five counts the cache_stats table held are now Prometheus counters in
memory, as fields of the cache. NewCache makes them and registers them on
the registry it is given. pixad gives it Prometheus' default registry,
which /metrics serves; each test gives it a new one. The Increment methods
add to their cache's counters, so counting makes no database call.

cache_stats, Cache.Stats, Service.Stats, CacheStats and the pending counts
are gone, with their tests. The background goroutine now writes only access
times, and its names say so: StartPendingAccessTimeWrites,
StopPendingAccessTimeWrites and pendingaccesstimes.go. The two stop tests
whose write under way was a count now use access times.

Model: opus-5-5
2026-10-26 09:12:33 +00:00

74 lines
1.8 KiB
Go

// Package app reads the pixad command line and runs the server.
package app
import (
"fmt"
"os"
"os/signal"
"syscall"
"github.com/prometheus/client_golang/prometheus"
"github.com/spf13/cobra"
"go.uber.org/fx"
"sneak.berlin/go/pixa/internal/config"
"sneak.berlin/go/pixa/internal/database"
"sneak.berlin/go/pixa/internal/globals"
"sneak.berlin/go/pixa/internal/handlers"
"sneak.berlin/go/pixa/internal/healthcheck"
"sneak.berlin/go/pixa/internal/logger"
"sneak.berlin/go/pixa/internal/middleware"
"sneak.berlin/go/pixa/internal/server"
)
var configPath string //nolint:gochecknoglobals // cobra flag
// Run reads the command line and runs the server until it stops, with
// version as the version pixad logs and reports. It exits the process
// with status 1 when the command line is not valid.
func Run(version string) {
globals.Version = version
rootCmd := &cobra.Command{
Use: "pixad",
Short: "Pixa image caching proxy server",
Run: run,
}
rootCmd.Flags().StringVarP(&configPath, "config", "c", "", "path to config file")
err := rootCmd.Execute()
if err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
}
func run(_ *cobra.Command, _ []string) {
// Set config path in environment if specified via flag
if configPath != "" {
_ = os.Setenv("PIXA_CONFIG_PATH", configPath)
}
// A write to a closed stdout or stderr must not end the process.
signal.Ignore(syscall.SIGPIPE)
fx.New(
fx.Provide(
config.New,
database.New,
globals.New,
handlers.New,
logger.New,
server.New,
middleware.New,
healthcheck.New,
// The registry /metrics serves
func() prometheus.Registerer { return prometheus.DefaultRegisterer },
),
fx.Invoke(
func(log *logger.Logger) { log.Identify() },
func(*server.Server) {},
),
).Run()
}