Files
pixa/internal/app/app.go
T
sneak 11da311b8e
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Build the image pipeline in pixad's fx graph (closes #313)
The new package internal/providers builds the cache, the fetcher, the
processor, the image service, the session manager and the encrypted URL
generator from the config. providers.Option gives them to pixad's fx
graph, and handlers.New receives them built. The server tests build the
same graph, with only the fetcher's dial function replaced. database.New
opens the database, so these parts can read it while fx builds them; the
cache's stop hook still runs before the database's.

Each setting's default is declared in internal/config, and
internal/providers works out the default cache_max_bytes. The cache's
MaxBytes is the one value for the disk cache limit, and 0 turns the disk
cache off. The fetcher and the processor take explicit values.

Model: opus-5-5
2026-10-26 10:57:49 +00:00

76 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/providers"
"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 },
),
providers.Option,
fx.Invoke(
func(log *logger.Logger) { log.Identify() },
func(*server.Server) {},
),
).Run()
}