From 32e0b49a4c4b1608e5c573ce5379d0512d3dc952 Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Sun, 26 Jan 2020 03:10:34 +0000
Subject: project: --srcinfo support: initial integration.

---
 project/srcdist/manifest.in | 15 +++++++++++++++
 project/srcdist/srcinfo.in  | 27 +++++++++++++++++++++++++++
 project/srcgen.mk           | 38 +++++++++++++++++++++++++++++++++-----
 3 files changed, 75 insertions(+), 5 deletions(-)
 create mode 100644 project/srcdist/manifest.in
 create mode 100644 project/srcdist/srcinfo.in

diff --git a/project/srcdist/manifest.in b/project/srcdist/manifest.in
new file mode 100644
index 0000000..f6581aa
--- /dev/null
+++ b/project/srcdist/manifest.in
@@ -0,0 +1,15 @@
+  /
+ /  GREETINGS.
+|
+|   The source tree immediately containing this MANIFEST file is comprised of:
+|
+|   a) upstream source files in preferred, unmodified form;
+|   b) downstream build system files; and
+|   c) downstream overlay and extension files.
+|
+|   The following documents identify the origin of each of the source files by
+|   both its sha-256 signature and origin:
+|
+|   MANIFEST.rawball provides a list of upstream source files.
+|   MANIFEST.overlay provides a list of downstream overlay and extension files.
+|
diff --git a/project/srcdist/srcinfo.in b/project/srcdist/srcinfo.in
new file mode 100644
index 0000000..96b9331
--- /dev/null
+++ b/project/srcdist/srcinfo.in
@@ -0,0 +1,27 @@
+  /
+ /  GREETINGS.
+|
+|   This copy of @program@ was built from a source tree comprised of:
+|
+|   a) upstream source files in preferred, unmodified form;
+|   b) downstream build system files; and
+|   c) downstream overlay and extension files.
+|
+|   The above source tree contains manifest documents which help identify
+|   each source file by both its sha-256 signature and origin. See the
+|   top-level MANIFEST file for additional information.
+|
+|   The author(s) of one or more downstream files prefer, but do not require,
+|   that the complete corresponding source be shipped along with any package
+|   containing the program in binary form.
+|
+|   The complete corresponding source of the program may also be downloaded at:
+|
+|   https://@srcsite@/srchash/\$SRCHASH/@package@-@pkgver@.tar.xz
+|   https://@srcsite@/srchash/\$SRCHASH/@package@-@pkgver@.tar.xz.asc
+|
+|   SRCHASH: @srcball_sha256@
+|   PGPRKEY: @pgprkey@
+|   PGPSKEY: @pgpskey@
+|
+
diff --git a/project/srcgen.mk b/project/srcgen.mk
index d1ab778..3f73ec5 100644
--- a/project/srcgen.mk
+++ b/project/srcgen.mk
@@ -30,6 +30,16 @@ BIN_SUBST_RULES         = \
 			-e 's!@am_AUTOM4TE@!$(AM_AUTOM4TE)!g'             \
 			-e 's!@datadir@!$(DATADIR)!g'
 
+SRCINFO_SUBST_RULES     = \
+			-e 's!@program@!$(PROGRAM)!g'                     \
+			-e 's!@srcsite@!$(SRCSITE)!g'                     \
+			-e 's!@package@!$(PACKAGE)!g'                     \
+			-e 's,@pgprkey@,$(PGPRKEY),g'                     \
+			-e 's,@pgpskey@,$(PGPSKEY),g'                     \
+			-e 's!@pkgver@!$(AUTOMAKE_VER)!g'                 \
+			-e 's!@srcball_sha256@!$(SRCBALL_SHA256)!g'
+
+
 LIB_GEN_SRCS            = lib/Automake/Config.pm
 LIB_CONFIGURE_INPUT     = Generated via variable substitution from $(subst $(SOURCE_DIR)/lib/Automake/,,$<).
 LIB_SUBST_RULES         = \
@@ -44,11 +54,29 @@ ALL_GEN_SRCS            = $(M4_GEN_SRCS) $(BIN_GEN_SRCS) $(LIB_GEN_SRCS) $(MAN_G
 m4/amversion.m4: $(SOURCE_DIR)/m4/amversion.in tree.tag
 	sed $(M4_SUBST_RULES) $< > $@
 
-bin/aclocal-$(AUTOMAKE_VER):   $(SOURCE_DIR)/bin/aclocal.in tree.tag
-	sed $(BIN_SUBST_RULES) $< > $@ && chmod +x $@
-
-bin/automake-$(AUTOMAKE_VER):   $(SOURCE_DIR)/bin/automake.in tree.tag
-	sed $(BIN_SUBST_RULES) $< > $@ && chmod +x $@
+bin/aclocal-$(AUTOMAKE_VER): PROGRAM=aclocal
+bin/aclocal-$(AUTOMAKE_VER): $(SOURCE_DIR)/bin/aclocal.in tree.tag
+	sed -e '/$$PACKAGE) $$VERSION/,$$d' $(BIN_SUBST_RULES) \
+		$< > $@.tmp                                     \
+	&& sed $(SRCINFO_SUBST_RULES)                            \
+		$(SRCINFO) >> $@.tmp                              \
+	&& sed -e '/$$PACKAGE) $$VERSION/p'                        \
+		-e '1,/$$PACKAGE) $$VERSION/d' $(BIN_SUBST_RULES)   \
+		$< >> $@.tmp                                         \
+	&& chmod +x $@.tmp                                            \
+	&& mv $@.tmp $@
+
+bin/automake-$(AUTOMAKE_VER): PROGRAM=automake
+bin/automake-$(AUTOMAKE_VER): $(SOURCE_DIR)/bin/automake.in tree.tag
+	sed -e '/$$PACKAGE) $$VERSION/,$$d' $(BIN_SUBST_RULES) \
+		$< > $@.tmp                                     \
+	&& sed $(SRCINFO_SUBST_RULES)                            \
+		$(SRCINFO) >> $@.tmp                              \
+	&& sed -e '/$$PACKAGE) $$VERSION/p'                        \
+		-e '1,/$$PACKAGE) $$VERSION/d' $(BIN_SUBST_RULES)   \
+		$< >> $@.tmp                                         \
+	&& chmod +x $@.tmp                                            \
+	&& mv $@.tmp $@
 
 lib/Automake/Config.pm: $(SOURCE_DIR)/lib/Automake/Config.in tree.tag
 	sed $(LIB_SUBST_RULES) $< > $@
-- 
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