var doc: advertise current DEFAULT_PAGER and DEFAULT_EDITOR settings

Document the default pager and editor chosen at compile time in the
git-var(1) manpage so users curious about what command _this_ copy of
git will fall back to when EDITOR, VISUAL, and PAGER are unset can
find the answer quickly.

In builds leaving those settings uncustomized, this patch makes the
manpage continue to say "usually vi" and "usually less" so the
formatted documentation is usable for a wide audience including users
of custom builds that change those settings.  If you would like your
copy of the docs to be less noncommittal, you will need to set
DEFAULT_PAGER=less and DEFAULT_EDITOR=vi explicitly.

Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/Documentation/Makefile b/Documentation/Makefile
index d40e211f22dbe6c102a102041ac9f0779c7cb837..9fee0b9261d938933c61317a51c3d5d9687ed098 100644 (file)
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -124,6 +124,16 @@ SHELL_PATH ?= $(SHELL)
 # Shell quote;
 SHELL_PATH_SQ = $(subst ','\'',$(SHELL_PATH))
 
+ifdef DEFAULT_PAGER
+DEFAULT_PAGER_SQ = $(subst ','\'',$(DEFAULT_PAGER))
+ASCIIDOC_EXTRA += -a 'git-default-pager=$(DEFAULT_PAGER_SQ)'
+endif
+
+ifdef DEFAULT_EDITOR
+DEFAULT_EDITOR_SQ = $(subst ','\'',$(DEFAULT_EDITOR))
+ASCIIDOC_EXTRA += -a 'git-default-editor=$(DEFAULT_EDITOR_SQ)'
+endif
+
 #
 # Please note that there is a minor bug in asciidoc.
 # The version after 6.0.3 _will_ include the patch found here:

diff --git a/Documentation/git-var.txt b/Documentation/git-var.txt
index beef9e285d21c0bbcce03dcc15dba5729dc72c78..988a3234f435ccd55d20f9d0e48c146b55691167 100644 (file)
--- a/Documentation/git-var.txt
+++ b/Documentation/git-var.txt
@@ -45,6 +45,9 @@ GIT_EDITOR::
     environment variable, then `core.editor` configuration, then
     `$VISUAL`, then `$EDITOR`, and then the default chosen at compile
     time, which is usually 'vi'.
+ifdef::git-default-editor[]
+    The build you are using chose '{git-default-editor}' as the default.
+endif::git-default-editor[]
 
 GIT_PAGER::
     Text viewer for use by git commands (e.g., 'less').  The value
@@ -52,6 +55,9 @@ GIT_PAGER::
     is the `$GIT_PAGER` environment variable, then `core.pager`
     configuration, then `$PAGER`, and then the default chosen at
     compile time (usually 'less').
+ifdef::git-default-pager[]
+    The build you are using chose '{git-default-pager}' as the default.
+endif::git-default-pager[]
 
 Diagnostics
 -----------

diff --git a/Makefile b/Makefile
index a782409306df85985e1f465eab4bd3cd7fa2cc83..394ac085466c1ae25a4405c1cfb5fc7f71f9a104 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -2191,6 +2191,8 @@ $(XDIFF_LIB): $(XDIFF_OBJS)
 $(VCSSVN_LIB): $(VCSSVN_OBJS)
        $(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $(VCSSVN_OBJS)
 
+export DEFAULT_EDITOR DEFAULT_PAGER
+
 doc:
        $(MAKE) -C Documentation all