Update install-doc-quick (Re* What's cooking in git.git (Nov 2011, #02; Sun, 6))

[Junio C Hamano <gitster@pobox.com>]

Junio C Hamano <gitster@pobox.com> writes:

> Stefan Näwe <stefan.naewe@atlas-elektronik.com> writes:
>
>> This breaks the 'quick-install-{doc,html,man}' make targets, btw.
>
> Thanks. As the "push into kernel.org auto-rebuilds these branches"
> infrastructure is no longer available, I think we should remove these
> targets and description of them in the INSTALL file in the meantime.
>
> Anybody care to do a big removal patch?

Alternatively, we could keep it alive if people really want it, like this.

Stefan, care to apply it on top of 'maint' and try it out?

 Documentation/Makefile             |   23 +++++++++++++++-----
 Documentation/install-doc-quick.sh |   40 +++++++++++++++++++++--------------
 INSTALL                            |   29 ++-----------------------
 3 files changed, 44 insertions(+), 48 deletions(-)

diff --git a/Documentation/Makefile b/Documentation/Makefile
index 6346a75..5a340fd 100644
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -46,8 +46,8 @@ MANPAGE_XSL = manpage-normal.xsl
 XMLTO_EXTRA =
 INSTALL?=install
 RM ?= rm -f
-DOC_REF = origin/man
-HTML_REF = origin/html
+MAN_REPO = ../../git-manpages
+HTML_REPO = ../../git-htmldocs
 
 infodir?=$(prefix)/share/info
 MAKEINFO=makeinfo
@@ -327,12 +327,23 @@ $(patsubst %.txt,%.html,$(wildcard howto/*.txt)): %.html : %.txt
 install-webdoc : html
 	'$(SHELL_PATH_SQ)' ./install-webdoc.sh $(WEBDOC_DEST)
 
+# You must have a clone of git-htmldocs and git-manpages repositories
+# next to the git repository itself for the following to work.
+
 quick-install: quick-install-man
 
-quick-install-man:
-	'$(SHELL_PATH_SQ)' ./install-doc-quick.sh $(DOC_REF) $(DESTDIR)$(mandir)
+require-manrepo::
+	@if test ! -d $(MAN_REPO); \
+	then echo "git-manpages repository must exist at $(MAN_REPO)"; exit 1; fi
+
+quick-install-man: require-manrepo
+	'$(SHELL_PATH_SQ)' ./install-doc-quick.sh $(MAN_REPO) $(DESTDIR)$(mandir)
+
+require-htmlrepo::
+	@if test ! -d $(HTML_REPO); \
+	then echo "git-htmldocs repository must exist at $(HTML_REPO)"; exit 1; fi
 
-quick-install-html:
-	'$(SHELL_PATH_SQ)' ./install-doc-quick.sh $(HTML_REF) $(DESTDIR)$(htmldir)
+quick-install-html: require-htmlrepo
+	'$(SHELL_PATH_SQ)' ./install-doc-quick.sh $(HTML_REPO) $(DESTDIR)$(htmldir)
 
 .PHONY: FORCE
diff --git a/Documentation/install-doc-quick.sh b/Documentation/install-doc-quick.sh
index 35f4408..bbf0a21 100755
--- a/Documentation/install-doc-quick.sh
+++ b/Documentation/install-doc-quick.sh
@@ -1,29 +1,37 @@
 #!/bin/sh
-# This requires a branch named in $head
-# (usually 'man' or 'html', provided by the git.git repository)
-set -e
-head="$1"
-mandir="$2"
-SUBDIRECTORY_OK=t
-USAGE='<refname> <target directory>'
-. "$(git --exec-path)"/git-sh-setup
-cd_to_toplevel
+# This requires git-manpages and/or git-htmldocs repositories
 
-test -z "$mandir" && usage
-if ! git rev-parse --verify "$head^0" >/dev/null; then
-	echo >&2 "head: $head does not exist in the current repository"
-	usage
+repository=${1?repository}
+destdir=${2?destination}
+
+head=master GIT_DIR=
+for d in "$repository/.git" "$repository"
+do
+	if GIT_DIR="$d" git rev-parse refs/heads/master >/dev/null 2>&1
+	then
+		GIT_DIR="$d"
+		export GIT_DIR
+		break
+	fi
+done
+
+if test -z "$GIT_DIR"
+then
+	echo >&2 "Neither $repository nor $repository/.git is a repository"
+	exit 1
 fi
 
-GIT_INDEX_FILE=`pwd`/.quick-doc.index
-export GIT_INDEX_FILE
+GIT_WORK_TREE=$(pwd)
+GIT_INDEX_FILE=$(pwd)/.quick-doc.$$
+export GIT_INDEX_FILE GIT_WORK_TREE
 rm -f "$GIT_INDEX_FILE"
 trap 'rm -f "$GIT_INDEX_FILE"' 0
 
 git read-tree $head
 git checkout-index -a -f --prefix="$mandir"/
 
-if test -n "$GZ"; then
+if test -n "$GZ"
+then
 	git ls-tree -r --name-only $head |
 	xargs printf "$mandir/%s\n" |
 	xargs gzip -f
diff --git a/INSTALL b/INSTALL
index bbb9d4d..bf0d97e 100644
--- a/INSTALL
+++ b/INSTALL
@@ -139,34 +139,11 @@ Issues of note:
    uses some compatibility wrappers to work on AsciiDoc 8. If you have
    AsciiDoc 7, try "make ASCIIDOC7=YesPlease".
 
-   Alternatively, pre-formatted documentation is available in
-   "html" and "man" branches of the git repository itself.  For
-   example, you could:
-
-	$ mkdir manual && cd manual
-	$ git init
-	$ git fetch-pack git://git.kernel.org/pub/scm/git/git.git man html |
-	  while read a b
-	  do
-	    echo $a >.git/$b
-	  done
-	$ cp .git/refs/heads/man .git/refs/heads/master
-	$ git checkout
-
-   to checkout the pre-built man pages.  Also in this repository:
-
-	$ git checkout html
-
-   would instead give you a copy of what you see at:
-
-	http://www.kernel.org/pub/software/scm/git/docs/
-
    There are also "make quick-install-doc", "make quick-install-man"
    and "make quick-install-html" which install preformatted man pages
-   and html documentation.
-   This does not require asciidoc/xmlto, but it only works from within
-   a cloned checkout of git.git with these two extra branches, and will
-   not work for the maintainer for obvious chicken-and-egg reasons.
+   and html documentation. To use these build targets, you need to
+   clone two separate git-htmldocs and git-manpages repositories next
+   to the clone of git itself.
 
    It has been reported that docbook-xsl version 1.72 and 1.73 are
    buggy; 1.72 misformats manual pages for callouts, and 1.73 needs