Add projucer.eclass

This eclass provides functions to resave Projucer projects.

eclass/projucer.eclass

@@ -0,0 +1,73 @@
+# Copyright 2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+# @ECLASS: projucer.eclass
+# @MAINTAINER:
+# Ryan Fox <flewkey@2a03.party>
+# @AUTHOR:
+# Ryan Fox <flewkey@2a03.party>
+# @BLURB: Resave Projucer projects
+# @DESCRIPTION:
+# Provides a function to resave Projucer projects, and automatically sets the
+# paths for JUCE and it's modules.
+
+# @ECLASS-VARIABLE: JUCE_VERSION
+# @REQUIRED
+# @DEFAULT_UNSET
+# @DESCRIPTION:
+# Choose a specific version of JUCE to use. A project may only build with older
+# versions of JUCE.
+#
+# Example:
+# @CODE
+# JUCE_VERSION=6.0.4
+# @CODE
+
+# @ECLASS-VARIABLE: PROJUCER_VERSION
+# @DESCRIPTION:
+# Choose a specific version of JUCE to use. A project may only build with older
+# versions of JUCE.
+: ${PROJUCER_VERSION="${JUCE_VERSION}"}
+
+# @ECLASS-VARIABLE: JUCE_PATH
+# @DESCRIPTION:
+# The path to JUCE
+: ${JUCE_PATH:="/opt/juce-${JUCE_VERSION}"}
+
+# @ECLASS-VARIABLE: JUCE_MODULES_PATH
+# @DESCRIPTION:
+# The path to JUCE modules
+: ${JUCE_MODULES_PATH:="${JUCE_PATH}/modules"}
+
+# @ECLASS-VARIABLE: PROJUCER
+# @DESCRIPTION:
+# Provided in case someone wants to use a different binary
+: ${PROJUCER:="/opt/juce-${PROJUCER_VERSION}/Projucer"}
+
+# @ECLASS-VARIABLE: PROJUCER_CONF
+# @INTERNAL
+# @DESCRIPTION:
+# Config file affected by the eclass. Projucer itself doesn't care
+: ${PROJUCER_CONF:="${HOME}/.config/Projucer/Projucer.settings"}
+
+# @FUNCTION: _projucer_update_paths
+# @USAGE: <project>
+# @INTERNAL
+# @DESCRIPTION:
+# Sets the proper paths in the project and Projucer
+_projucer_update_paths() {
+	# Update project
+	sed -i "s/path=\".*\"\/>/path=\"${JUCE_MODULES_PATH//\//\\/}\"\/>/g" "${1}"
+	# Generate config (This is fine since ebuilds have a temporary homedir)
+	${PROJUCER} --help > /dev/null
+	sed -i "s/<PROJECT_DEFAULT_SETTINGS\/>/<PROJECT_DEFAULT_SETTINGS jucePath=\"${JUCE_PATH//\//\\/}\" defaultJuceModulePath=\"${JUCE_MODULES_PATH//\//\\/}\"\/>/g" "${PROJUCER_CONF}"
+}
+
+# @FUNCTION: projucer_resave
+# @USAGE: <project>
+# @DESCRIPTION:
+# Resave all project files and resources
+projucer_resave() {
+	_projucer_update_paths "${1}"
+	${PROJUCER} --resave "${1}"
+}