[PATCH] doc: set actual revdate for manpages

From: Felipe Contreras <felipe.contreras@gmail.com>
Date: Apr 13, 2023, 07:47 UTC
Message-ID: <20230413074722.71260-1-felipe.contreras@gmail.com>

manpages expect the date of the last revision, if that is not found DocBook Stylesheets go through a series of hacks to generate one with the format `%d/%d/%Y` which is not ideal.

In addition to this format not being standard, different tools generate dates with different formats.

There's no need for any confusion if we specify the revision date, so let's do so.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
---

This patch requires [1] to actually work, and has a simple conflict with [2], so it's written on top of both.

[1] https://lore.kernel.org/git/20230323221523.52472-1-felipe.contreras@gmail.com/ [2] https://lore.kernel.org/git/20230408001829.11031-1-felipe.contreras@gmail.com/

 Documentation/Makefile | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Documentation/Makefile b/Documentation/Makefile
index 3133ea3182..b629176d7d 100644
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -144,13 +144,16 @@ man5dir = $(mandir)/man5
 man7dir = $(mandir)/man7
 # DESTDIR =
 
+GIT_DATE := $(shell git show --quiet --pretty='%as')
+
 ASCIIDOC = asciidoc
 ASCIIDOC_EXTRA =
 ASCIIDOC_HTML = xhtml11
 ASCIIDOC_DOCBOOK = docbook
 ASCIIDOC_CONF = -f asciidoc.conf
 ASCIIDOC_COMMON = $(ASCIIDOC) $(ASCIIDOC_EXTRA) $(ASCIIDOC_CONF) \
-		-amanmanual='Git Manual' -amansource='Git $(GIT_VERSION)'
+		-amanmanual='Git Manual' -amansource='Git $(GIT_VERSION)' \
+		-arevdate='$(GIT_DATE)'
 ASCIIDOC_DEPS = asciidoc.conf GIT-ASCIIDOCFLAGS
 TXT_TO_HTML = $(ASCIIDOC_COMMON) -b $(ASCIIDOC_HTML)
 TXT_TO_XML = $(ASCIIDOC_COMMON) -b $(ASCIIDOC_DOCBOOK)

-- 
2.40.0+fc1