conf.sh: generalize {get,set}_conf_makepkg to {get,set}_var

3 files changed, 35 insertions, 40 deletions

diff --git a/src/chroot-tools/libremakepkg b/src/chroot-tools/libremakepkg
index f808070..fc6418c 100755
--- a/src/chroot-tools/libremakepkg
+++ b/src/chroot-tools/libremakepkg
@@ -219,12 +219,12 @@ main() {
 
 	# Load makepkg configuration ###########################################
 	# Note that all of these are globals
-	SRCDEST="$(get_conf_makepkg SRCDEST "$PWD")"
-	PKGDEST="$(get_conf_makepkg PKGDEST "$PWD")"
-	LOGDEST="$(get_conf_makepkg LOGDEST "$PWD")"
+	SRCDEST="$(get_var makepkg SRCDEST "$PWD")"
+	PKGDEST="$(get_var makepkg PKGDEST "$PWD")"
+	LOGDEST="$(get_var makepkg LOGDEST "$PWD")"
 	mkdir -p "$SRCDEST" "$PKGDEST" "$LOGDEST"
-	MAKEFLAGS="$(get_conf_makepkg MAKEFLAGS '')"
-	PACKAGER="$(get_conf_makepkg PACKAGER '')"
+	MAKEFLAGS="$(get_var makepkg MAKEFLAGS '')"
+	PACKAGER="$(get_var makepkg PACKAGER '')"
 
 	librechroot_flags=(
 		-r "$PWD:/startdir_host"
@@ -249,7 +249,7 @@ main() {
 
 	# Set target CARCH
 	# note that we waited until after locking/creating the chroot to do this
-	export CARCH="$(MAKEPKG_CONF=$copydir/etc/makepkg.conf get_conf_makepkg CARCH)"
+	export CARCH="$(MAKEPKG_CONF=$copydir/etc/makepkg.conf get_var makepkg CARCH)"
 
 	# Pre-build
 	msg 'Starting pre-build activities...'
diff --git a/src/lib/conf.sh b/src/lib/conf.sh
index c2904de..47a93c7 100644
--- a/src/lib/conf.sh
+++ b/src/lib/conf.sh
@@ -29,7 +29,7 @@ if [[ -z ${XDG_CACHE_HOME:-} ]]; then
 	export XDG_CACHE_HOME="${LIBREHOME}/.cache"
 fi
 
-# Generic functions ############################################################
+# Low-level generic functions ##################################################
 
 # Usage: list_files $slug
 # Lists the configuration files to be considered for $slug.
@@ -77,6 +77,8 @@ list_envvars() {
 	esac
 }
 
+# High-level generic functions #################################################
+
 # Usage: load_files $slug
 # Loads the configuration files for $slug in the proper order.
 load_files() {
@@ -130,24 +132,25 @@ check_vars() {
 	fi
 }
 
-# makepkg configuration ########################################################
-
-# Usage: get_conf_makepkg <var_name> <default_value>
+# Usage: get_var <slug> <var_name> <default_value>
 # Does not work with arrays
-get_conf_makepkg() (
+get_var() (
 	set +euE
-	local setting=$1
-	local default=$2
-	load_files makepkg
-	printf '%s\n' "${!setting:-${default}}"
+	local slug=$1
+	local setting=$2
+	local default=$3
+	load_files "$slug"
+	printf '%s' "${!setting:-${default}}"
 )
 
+# Usage: set_var <slug> <var_name> <value>
 # Does not work with arrays
-set_conf_makepkg() {
-	local key=$1
-	local val=$2
+set_var() {
+	local slug=$1
+	local key=$2
+	local val=$3
 	local file
-	for file in $(list_files makepkg|tac); do
+	for file in $(list_files "$slug"|tac); do
 		if [[ -w $file ]]; then
 			sed -i "/^\s*$key=/d" "$file"
 			printf '%s=%q\n' "$key" "$val" >> "$file"
diff --git a/src/lib/conf.sh.3.ronn b/src/lib/conf.sh.3.ronn
index a2bc862..82f6eed 100644
--- a/src/lib/conf.sh.3.ronn
+++ b/src/lib/conf.sh.3.ronn
@@ -59,10 +59,20 @@ The routines you will likely actually use are:
      aren't, it prints a message to configure them in the
      configuration files for <SLUG>, and returns with a non-zero
      status.
+   * `get_var` <SLUG> <VAR> <DEFAULT>:
+     If <VAR> is set in the configuration for <SLUG>, print it's
+     value, considering environmental variables.  If it is not set,
+     return <DEFAULT>.  This does NOT work for array variables.
+   * `set_var` <SLUG> <VAR> <VALUE>:
+     Set the variable <VAR> equal to <VALUE> in the configuration file
+     for <SLUG> of highest precedence that already exists, and is
+     writable.  If no files fit this description, the routine does
+     nothing and returns a non-zero exit status.  This does NOT work
+     for array variables.
 
-There are also two more routines that are used internally by
-the above.  You are unlikely to use them directly, but they might
-be useful for debugging.
+There are two more routines the above routines use internally that are
+used internally by .  You are unlikely to use them directly, but they
+might be useful for debugging, or at least describing behavior.
 
    * `list_files` <SLUG>:
      Lists (newline-separated) the configuration files that must be
@@ -75,24 +85,6 @@ be useful for debugging.
      <PACKAGER> environmental variable is set, the value in the
      configuration file is ignored.
 
-### MAKEPKG.CONF ROUTINES
-
-These two routines exist to get and set individual variables in
-`makepkg.conf`().  See the output of `list_files makepkg` for exactly
-what set of files that refers to.
-
-These routines do NOT work with array settings.
-
-   * `get_conf_makepkg` <VAR> <DEFAULT>:
-     If <VAR> is set, return it's value, considering environmental
-     variables.  If it is not set, return <DEFAULT>.  The printed
-     value is then trailed by a newline.
-   * `set_conf_makepkg` <VAR> <VALUE>:
-     Set the variable <VAR> equal to <VALUE> in the configuration file
-     of highest precedence that already exists, and is writable.  If
-     no files fit this description, the routine does nothing and
-     returns a non-zero exit status.
-
 ### PKGBUILD ROUTINES
 
 These two routines deal with loading `PKGBUILD`(5) files.