From 84c4c45d5b3b2c690d5be4f06004b96abfd15ab6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thorben=20G=C3=BCnther?= <admin@xenrox.net>
Date: Thu, 16 Feb 2023 13:06:21 +0100
Subject: [PATCH] version: Use linker flag

Embedding the version file is slightly annoying for packaging, because
the release tarball is not a git repository and so "go generate" would
fail. Instead a packager would have to manually create the version.txt
file.
With using a linker flag, the version string has a graceful fallback.
---
 .build.yml            | 1 -
 .gitignore            | 1 -
 docker/Dockerfile-dev | 2 +-
 main.go               | 4 +---
 4 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/.build.yml b/.build.yml
index 1e22572..698ed39 100644
--- a/.build.yml
+++ b/.build.yml
@@ -11,7 +11,6 @@ sources:
 tasks:
     - test: |
           cd ntfy-alertmanager
-          go generate ./...
           go test -v ./...
     - lint: |
           cd ntfy-alertmanager
diff --git a/.gitignore b/.gitignore
index 2b0be1e..6948ee2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1 @@
 /ntfy-alertmanager
-version.txt
diff --git a/docker/Dockerfile-dev b/docker/Dockerfile-dev
index fe5031e..5c340b2 100644
--- a/docker/Dockerfile-dev
+++ b/docker/Dockerfile-dev
@@ -3,7 +3,7 @@ WORKDIR /app
 
 COPY . .
 RUN apk add --no-cache git
-RUN go generate ./... && go build -o /app/ntfy-alertmanager
+RUN go build -ldflags="-X main.version=$(git describe --long)" -o /app/ntfy-alertmanager
 
 
 FROM alpine:latest
diff --git a/main.go b/main.go
index cd0500c..6958636 100644
--- a/main.go
+++ b/main.go
@@ -19,9 +19,7 @@ import (
 	"golang.org/x/text/language"
 )
 
-//go:generate sh -c "git describe --long > version.txt"
-//go:embed version.txt
-var version string
+var version = "dev"
 
 type receiver struct {
 	cfg    *config