From 2b62ac660d258858f7a7795a113a7056d0d2c79d Mon Sep 17 00:00:00 2001
From: "Frédéric Pierret (fepitre)" <frederic.pierret@qubes-os.org>
Date: Sun, 4 Feb 2024 12:03:50 +0100
Subject: feat(mkarchroot): allow to specify file destination inside chroot

Co-authored-by: Christian Heusel <christian@heusel.eu>
---
 src/arch-nspawn.in | 19 +++++++++++--------
 src/mkarchroot.in  | 21 ++++++++++++---------
 2 files changed, 23 insertions(+), 17 deletions(-)

(limited to 'src')

diff --git a/src/arch-nspawn.in b/src/arch-nspawn.in
index a4504a1..bd99adc 100644
--- a/src/arch-nspawn.in
+++ b/src/arch-nspawn.in
@@ -22,12 +22,13 @@ usage() {
 	echo "A wrapper around systemd-nspawn. Provides support for pacman."
 	echo
 	echo ' options:'
-	echo '    -C <file>     Location of a pacman config file'
-	echo '    -M <file>     Location of a makepkg config file'
-	echo '    -c <dir>      Set pacman cache'
-	echo '    -f <file>     Copy file from the host to the chroot'
-	echo '    -s            Do not run setarch'
-	echo '    -h            This message'
+	echo '    -C <file>           Location of a pacman config file'
+	echo '    -M <file>           Location of a makepkg config file'
+	echo '    -c <dir>            Set pacman cache'
+	echo '    -f <src>[:<dst>]    Copy src file from the host to the chroot.'
+	echo '                        If dst file is not provided, it defaults to src'
+	echo '    -s                  Do not run setarch'
+	echo '    -h                  This message'
 	exit 1
 }
 
@@ -114,8 +115,10 @@ copy_hostconf () {
 
 	local file
 	for file in "${files[@]}"; do
-		mkdir -p "$(dirname "$working_dir$file")"
-		cp -T "$file" "$working_dir$file"
+		src="${file%%:*}"
+		dst="${file#*:}"
+		mkdir -p "$(dirname "$working_dir$dst")"
+		cp -T "$src" "$working_dir$dst"
 	done
 
 	sed -r "s|^#?\\s*CacheDir.+|CacheDir = ${cache_dirs[*]}|g" -i "$working_dir/etc/pacman.conf"
diff --git a/src/mkarchroot.in b/src/mkarchroot.in
index fc60b4e..06cf5d2 100644
--- a/src/mkarchroot.in
+++ b/src/mkarchroot.in
@@ -22,13 +22,14 @@ nspawn_args=()
 usage() {
 	echo "Usage: ${0##*/} [options] working-dir package-list..."
 	echo ' options:'
-	echo '    -U            Use pacman -U to install packages'
-	echo '    -C <file>     Location of a pacman config file'
-	echo '    -M <file>     Location of a makepkg config file'
-	echo '    -c <dir>      Set pacman cache'
-	echo '    -f <file>     Copy file from the host to the chroot'
-	echo '    -s            Do not run setarch'
-	echo '    -h            This message'
+	echo '    -U                  Use pacman -U to install packages'
+	echo '    -C <file>           Location of a pacman config file'
+	echo '    -M <file>           Location of a makepkg config file'
+	echo '    -c <dir>            Set pacman cache'
+	echo '    -f <src>[:<dst>]    Copy src file from the host to the chroot.'
+	echo '                        If dst file is not provided, it defaults to src'
+	echo '    -s                  Do not run setarch'
+	echo '    -h                  This message'
 	exit 1
 }
 
@@ -84,8 +85,10 @@ if is_btrfs "$working_dir"; then
 fi
 
 for file in "${files[@]}"; do
-	mkdir -p "$(dirname "$working_dir$file")"
-	cp "$file" "$working_dir$file"
+	src="${file%%:*}"
+	dst="${file#*:}"
+	mkdir -p "$(dirname "$working_dir$dst")"
+	cp "$src" "$working_dir$dst"
 done
 
 unshare --mount pacstrap -${umode}Mc ${pac_conf:+-C "$pac_conf"} "$working_dir" \
-- 
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