Add license and basic documentation

LICENSE:
Add GPL-3.0 license.

{{archiso,configs}/*,.editorconfig,.gitlab-ci.yml}:
Add SPDX license identifier.

Makefile:
Add SPDX license identifier.
Install the `run_archiso.sh` script as global executable `run_archiso`.
Use -D and -t flags to install to install files more generically (without a previous call to install the directory).

README.rst:
Add README outlining the project's scope, how to build images from the profiles and how to test.

AUTHORS.rst:
Add list of all direct contributors to the repository.

CONTRIBUTING.rst:
Add basic contribution guidelines, explaining the linter and the license in use.

Closes #7
Closes #3

1 files changed, 7 insertions, 4 deletions

diff --git a/Makefile b/Makefile
index 3ee8a6a..a274282 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,6 @@
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
 INSTALL_FILES=$(wildcard archiso/initcpio/install/*)
 HOOKS_FILES=$(wildcard archiso/initcpio/hooks/*)
 SCRIPT_FILES=$(wildcard archiso/initcpio/script/*)
@@ -6,7 +9,7 @@ INSTALL_DIR=$(DESTDIR)/usr/lib/initcpio/install
 HOOKS_DIR=$(DESTDIR)/usr/lib/initcpio/hooks
 SCRIPT_DIR=$(DESTDIR)/usr/lib/initcpio
 
-DOC_FILES=$(wildcard docs/*)
+DOC_FILES=$(wildcard docs/*) $(wildcard *.rst)
 
 DOC_DIR=$(DESTDIR)/usr/share/doc/archiso
 
@@ -25,7 +28,8 @@ check:
 install: install-program install-initcpio install-examples install-doc
 
 install-program:
-	install -D -m 755 archiso/mkarchiso $(DESTDIR)/usr/bin/mkarchiso
+	install -vDm 755 archiso/mkarchiso -t "$(DESTDIR)/usr/bin/"
+	install -vDm 755 scripts/run_archiso.sh "$(DESTDIR)/usr/bin/run_archiso"
 
 install-initcpio:
 	install -d $(SCRIPT_DIR) $(HOOKS_DIR) $(INSTALL_DIR)
@@ -38,7 +42,6 @@ install-examples:
 	cp -a --no-preserve=ownership configs $(DESTDIR)/usr/share/archiso/
 
 install-doc:
-	install -d $(DOC_DIR)
-	install -m 644 -t $(DOC_DIR) $(DOC_FILES)
+	install -vDm 644 $(DOC_FILES) -t $(DOC_DIR)
 
 .PHONY: check install install-program install-initcpio install-examples install-doc