Set user home when running in docker

Dockerfile

@@ -4,8 +4,6 @@ RUN apt-get update \
  && apt-get install -y libreoffice-writer \
  && rm -rf /var/lib/apt/lists/*
 
-COPY setlist /setlist
-
 RUN mkdir /home/user \
  && chmod 777 /home/user
 
@@ -16,4 +14,6 @@ RUN mkdir /repertoire
 
 WORKDIR /repertoire
 
+COPY setlist /setlist
+
 ENTRYPOINT [ "/setlist" ]

internal/config/config.go

@@ -0,0 +1,11 @@
+package config
+
+import "os"
+
+func RunningInContainer() bool {
+	return os.Getenv("OS_ENV") == "container"
+}
+
+func UserHome() string {
+	return os.Getenv("HOME")
+}

internal/html/pdf/convert.go

@@ -7,6 +7,7 @@ import (
 
 	"github.com/chromedp/cdproto/page"
 	"github.com/chromedp/chromedp"
+	"github.com/laenzlinger/setlist/internal/config"
 )
 
 func HTMLToPDF(in, out string) error {
@@ -16,7 +17,7 @@ func HTMLToPDF(in, out string) error {
 	}
 	url := fmt.Sprintf("file://%s/%s", wd, in)
 	opts := []chromedp.ExecAllocatorOption{}
-	if os.Getenv("OS_ENV") == "container" {
+	if config.RunningInContainer() {
 		// when running inside a container, we don't use sandbox
 		opts = append(opts, chromedp.NoSandbox)
 	}

internal/sheet/sheet.go

@@ -12,6 +12,7 @@ import (
 	"sort"
 	"strings"
 
+	"github.com/laenzlinger/setlist/internal/config"
 	"github.com/laenzlinger/setlist/internal/gig"
 	convert "github.com/laenzlinger/setlist/internal/html/pdf"
 	tmpl "github.com/laenzlinger/setlist/internal/html/template"
@@ -111,8 +112,12 @@ func (s *Sheet) verifySheetPdf() error {
 func (s *Sheet) generateFromSource() error {
 	log.Printf("generate from source for `%s`", s.song)
 	buf := bytes.NewBuffer([]byte{})
-	//nolint:gosec // FIXME validate input
-	cmd := exec.Command("libreoffice", "--headless", "--convert-to", "pdf", "--outdir", s.sourceDir(), s.sourceName())
+	args := []string{"--headless", "--convert-to", "pdf", "--outdir", s.sourceDir(), s.sourceName()}
+	if config.RunningInContainer() {
+		args = append(args, fmt.Sprintf("-env:UserInstallation=file:///%s", config.UserHome()))
+	}
+
+	cmd := exec.Command("libreoffice", args...)
 	cmd.Stdout = buf
 	cmd.Stderr = buf
 	err := cmd.Run()