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#!/usr/bin/make -rRf
# Usage: pacman-make-keyring V=$(date -u +%Y%m%d)
# Copyright 2014, 2016 Luke Shumaker <lukeshu@sbcglobal.net>.
#
# This is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This software is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public
# License along with this manual; if not, see
# <http://www.gnu.org/licenses/>.
ifeq ($(origin V),undefined)
$(info Usage: pacman-make-keyring V=$$(date -u +%Y%m%d))
$(error You must set V= on the command line)
endif
bin := $(patsubst %/,%,$(dir $(lastword $(MAKEFILE_LIST))))
yamldir := $(shell ruby -e "load '$(bin)/common.rb'; print cfg['yamldir']")
cachedir := $(shell ruby -e "load '$(bin)/common.rb'; print cfg['keyring_cachedir']")
outputdir = $(cachedir)/$(KEYRING_NAME)-keyring-$(V)
KEYRING_NAME = parabola
all: $(KEYRING_NAME)-keyring-$(V).tar.gz
.PHONY: all
export SHELL = /bin/bash -o pipefail
.PHONY: FORCE
.SECONDARY:
.DELETE_ON_ERROR:
dirs = \
$(outputdir) \
$(cachedir) \
$(cachedir)/gpghome \
$(cachedir)/keys/trusted \
$(cachedir)/keys/secondary \
$(cachedir)/keys/revoked
$(dirs):
mkdir -p $@
$(cachedir)/var.%: FORCE | $(cachedir)
@$(file >$(@D)/tmp.$(@F),$($*))
@sed -i 's|^|#|' $(@D)/tmp.$(@F)
@if cmp -s $(@D)/tmp.$(@F) $@; then \
rm -f $(@D)/tmp.$(@F) || :; \
else \
mv -f $(@D)/tmp.$(@F) $@; \
fi
-include $(wildcard $(cachedir)/var.*)
$(cachedir)/txt.%: $(cachedir)/var.%
sed 's|^#||' < $< > $@
var=$(cachedir)/var.
keyring-files = \
$(outputdir)/Makefile \
$(outputdir)/${KEYRING_NAME}.gpg \
$(outputdir)/${KEYRING_NAME}-trusted \
$(outputdir)/${KEYRING_NAME}-revoked
$(KEYRING_NAME)-keyring-$(V).tar.gz: %.tar.gz: $(keyring-files)
bsdtar --format=ustar -cf - -C $(cachedir) $(addprefix $*/,$(notdir $^)) | gzip -9 > $@
define Makefile.in
V=@V@
prefix = /usr/local
PREFIX = $$(prefix)
install:
install -dm755 $$(DESTDIR)$$(PREFIX)/share/pacman/keyrings/
install -m0644 @KEYRING_NAME@{.gpg,-trusted,-revoked} $$(DESTDIR)$$(PREFIX)/share/pacman/keyrings/
uninstall:
rm -f $$(DESTDIR)$$(PREFIX)/share/pacman/keyrings/@KEYRING_NAME@{.gpg,-trusted,-revoked}
rmdir -p --ignore-fail-on-non-empty $$(DESTDIR)$$(PREFIX)/share/pacman/keyrings/
.PHONY: install uninstall
endef
$(outputdir)/Makefile: $(cachedir)/txt.Makefile.in $(var)V $(var)KEYRING_NAME | $(outputdir)
sed $(foreach v,$(patsubst $(var)%,%,$(filter $(var)%,$^)), -e 's|@$v@|$($v)|' ) < $< > $@
users := $(sort $(shell find $(yamldir))) $(var)users
# Assemble the list of .asc files needed to generate the keyring
$(cachedir)/deps.mk: ${users} $(var)outputdir $(var)cachedir $(var)KEYRING_NAME| $(cachedir)
{ \
echo $(outputdir)/${KEYRING_NAME}.gpg: $$($(bin)/pgp-list-keyids | sed -r 's|(\S+) .*|$$(cachedir)/keys/\1.asc|') && \
echo $(cachedir)/stamp.ownertrust: $$($(bin)/pgp-list-keyids | sed -rn 's|^(trusted/\S+) .*|$$(cachedir)/keys/\1.asc|p') && \
$(bin)/pgp-list-keyids | sed -rn 's|^trusted/(\S+) (.*)|keyid.\1 = \2|p' && \
$(bin)/uid-map | sed 's|.*|trusted:&\nsecondary:&\nrevoked:&|' | sed -r 's|(.*):(.*):(.*)|$$(cachedir)/keys/\1/\3.asc: $$(yamldir)/\2.yml|' && \
:; }> $@
-include $(cachedir)/deps.mk
# The remainder of file is mostly just a translation of the shell
# script `update-keys`.
#
# https://git.archlinux.org/archlinux-keyring.git/tree/update-keys
export LANG=C
KEYSERVER = hkp://pool.sks-keyservers.net
GPG = gpg --quiet --batch --no-tty --no-permission-warning --keyserver ${KEYSERVER} --homedir $(cachedir)/gpghome
define gpg-init
%echo Generating Parabola Keyring keychain master key...
Key-Type: RSA
Key-Length: 1024
Key-Usage: sign
Name-Real: Parabola Keyring Keychain Master Key
Name-Email: parabola-keyring@localhost
Expire-Date: 0
%no-protection
%commit
%echo Done
endef
$(cachedir)/stamp.gpg-init: $(cachedir)/txt.gpg-init $(var)GPG | $(cachedir)/gpghome
${GPG} --gen-key < $<
touch $@
# The appropriate ${uid}.yml file is added as a dependency to
# ${username}.yml by deps.mk
keyid=$(keyid.$(patsubst %.asc,%,$(notdir $@)))
# In 'update-keys', this is the 'master-keyids' loop
$(outputdir)/${KEYRING_NAME}-trusted: ${users} | $(outputdir)
$(bin)/pgp-list-keyids | sed -rn 's|^trusted/\S+ (\S+)|\1:4:|p' > $@
$(cachedir)/keys/trusted/%.asc : $(cachedir)/stamp.gpg-init | $(cachedir)/keys/trusted
${GPG} --recv-keys ${keyid} &>/dev/null
printf 'minimize\nquit\ny\n' | ${GPG} --command-fd 0 --edit-key ${keyid}
printf 'y\ny\n' | ${GPG} --command-fd 0 --lsign-key ${keyid} &>/dev/null
${GPG} --armor --no-emit-version --export ${keyid} > $@
$(cachedir)/stamp.ownertrust: $(outputdir)/${KEYRING_NAME}-trusted $(cachedir)/deps.mk
${GPG} --import-ownertrust < $< 2>/dev/null
touch $@
# In 'update-keys', this is the 'packager-keyids' loop
$(cachedir)/keys/secondary/%.asc: $(cachedir)/stamp.ownertrust | $(cachedir)/keys/secondary
${GPG} --recv-keys ${keyid} &>/dev/null
printf 'clean\nquit\ny\n' | ${GPG} --command-fd 0 --edit-key ${keyid}
${GPG} --list-keys --with-colons ${keyid} 2>/dev/null | grep -q '^pub:f:' # make sure it is trusted
${GPG} --armor --no-emit-version --export ${keyid} > $@
# In 'update-keys', this is the 'packager-revoked-keyids' loop
$(outputdir)/${KEYRING_NAME}-revoked: ${users} | $(outputdir)
$(bin)/pgp-list-keyids | sed -rn 's|^revoked/\S+ ||p' > $@
$(cachedir)/keys/revoked/%.asc : $(cachedir)/stamp.ownertrust | $(cachedir)/keys/revoked
${GPG} --recv-keys ${keyid} &>/dev/null
printf 'clean\nquit\ny\n' | ${GPG} --command-fd 0 --edit-key ${keyid}
! ${GPG} --list-keys --with-colons ${keyid} 2>/dev/null | grep -q '^pub:f:' # make sure it isn't trusted
${GPG} --armor --no-emit-version --export ${keyid} > $@
$(outputdir)/${KEYRING_NAME}.gpg: $(cachedir)/deps.mk | $(outputdir)
cat $(filter %.asc,$^) > $@
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