app.go RawHistoryFolder

1// SPDX-License-Identifier: AGPL-3.0-or-later
2
3// Package app is the composition root and the command line of ermite: it
4// parses the CLI, reads the environment, builds the adapters and wires them to
5// the use cases. cmd/ermite is only its entry point.
6package app
7
8import (
9	"runtime/debug"
10)
11
12// Run executes the ermite command line with args, the command-line arguments
13// without the program name. It returns the error of the command, which the
14// caller prints once.
15func Run(args []string) error {
16	root := newRootCmd()
17	if args == nil {
18		args = []string{}
19	}
20	root.SetArgs(args)
21	return root.Execute()
22}
23
24// ExitCode is the process exit status for the error Run returned.
25func ExitCode(err error) int {
26	if err == nil {
27		return 0
28	}
29	return 1
30}
31
32// stamped is the release version set at link time by the image build
33// (-ldflags "-X bnema.dev/ermite/internal/app.stamped=v0.1.0"). Empty for a
34// plain go build, which then reports the module version recorded by the Go
35// toolchain.
36var stamped string
37
38// buildVersion is the version stamped into the binary: the link-time version
39// when set, else the module version of the build.
40func buildVersion() string {
41	if stamped != "" {
42		return stamped
43	}
44	info, ok := debug.ReadBuildInfo()
45	if !ok || info.Main.Version == "" {
46		return "(devel)"
47	}
48	return info.Main.Version
49}
50
51func version() string { return "ermite " + buildVersion() }