#!/bin/sh
### autogen.sh - tool to help build Emacs from a repository checkout
-## Copyright (C) 2011-2015 Free Software Foundation, Inc.
+## Copyright (C) 2011-2016 Free Software Foundation, Inc.
## Author: Glenn Morris <rgm@gnu.org>
## Maintainer: emacs-devel@gnu.org
return 2
}
+do_autoconf=false
+test $# -eq 0 && do_autoconf=true
+do_git=false
+
+for arg; do
+ case $arg in
+ --help)
+ exec echo "$0: usage: $0 [all|autoconf|git]";;
+ all)
+ do_autoconf=true do_git=true;;
+ autoconf)
+ do_autoconf=true;;
+ git)
+ do_git=true;;
+ *)
+ echo >&2 "$0: $arg: unknown argument"; exit 1;;
+ esac
+done
+
-cat <<EOF
-Checking whether you have the necessary tools...
-(Read INSTALL.REPO for more details on building Emacs)
+# Generate Autoconf and Automake related files, if requested.
-EOF
+if $do_autoconf; then
-missing=
+ echo 'Checking whether you have the necessary tools...
+(Read INSTALL.REPO for more details on building Emacs)'
-for prog in $progs; do
+ missing=
+
+ for prog in $progs; do
sprog=`echo "$prog" | sed 's/-/_/g'`
eval ${sprog}_why=\""$stat"\"
fi
-done
+ done
-if [ x"$missing" != x ]; then
+ if [ x"$missing" != x ]; then
- cat <<EOF
-
-Building Emacs from the repository requires the following specialized programs:
-EOF
+ echo '
+Building Emacs from the repository requires the following specialized programs:'
for prog in $progs; do
sprog=`echo "$prog" | sed 's/-/_/g'`
done
- cat <<EOF
-
-Your system seems to be missing the following tool(s):
-EOF
+ echo '
+Your system seems to be missing the following tool(s):'
for prog in $missing; do
sprog=`echo "$prog" | sed 's/-/_/g'`
echo "$prog ($why)"
done
- cat <<EOF
-
+ echo '
If you think you have the required tools, please add them to your PATH
and re-run this script.
instead of this script.
-Please report any problems with this script to bug-gnu-emacs@gnu.org .
-EOF
+Please report any problems with this script to bug-gnu-emacs@gnu.org .'
exit 1
+ fi
+
+ echo 'Your system has the required tools.'
+ echo "Running 'autoreconf -fi -I m4' ..."
+
+
+ ## Let autoreconf figure out what, if anything, needs doing.
+ ## Use autoreconf's -f option in case autoreconf itself has changed.
+ autoreconf -fi -I m4 || exit $?
+
+ ## Create a timestamp, so that './autogen.sh; make' doesn't
+ ## cause 'make' to needlessly run 'autoheader'.
+ echo timestamp > src/stamp-h.in || exit
fi
-echo 'Your system has the required tools.'
-echo "Running 'autoreconf -fi -I m4' ..."
+# True if the Git setup was OK before autogen.sh was run.
-## Let autoreconf figure out what, if anything, needs doing.
-## Use autoreconf's -f option in case autoreconf itself has changed.
-autoreconf -fi -I m4 || exit $?
+git_was_ok=true
-## Create a timestamp, so that './autogen.sh; make' doesn't
-## cause 'make' to needlessly run 'autoheader'.
-echo timestamp > src/stamp-h.in || exit
+if $do_git; then
+ case `cp --help 2>/dev/null` in
+ *--backup*--verbose*)
+ cp_options='--backup=numbered --verbose';;
+ *)
+ cp_options='-f';;
+ esac
+fi
-## Install Git hooks, if using Git.
-if test -d .git/hooks; then
- tailored_hooks=
- sample_hooks=
- for hook in commit-msg pre-commit; do
- cmp build-aux/git-hooks/$hook .git/hooks/$hook >/dev/null 2>&1 ||
+# Like 'git config NAME VALUE' but verbose on change and exiting on failure.
+# Also, do not configure unless requested.
+
+git_config ()
+{
+ name=$1
+ value=$2
+
+ ovalue=`git config --get "$name"` && test "$ovalue" = "$value" || {
+ if $do_git; then
+ if $git_was_ok; then
+ echo 'Configuring local git repository...'
+ case $cp_options in
+ --backup=*)
+ cp $cp_options --force .git/config .git/config || exit;;
+ esac
+ fi
+ echo "git config $name '$value'"
+ git config "$name" "$value" || exit
+ fi
+ git_was_ok=false
+ }
+}
+
+## Configure Git, if requested.
+
+# Check hashes when transferring objects among repositories.
+
+git_config transfer.fsckObjects true
+
+
+# Configure 'git diff' hunk header format.
+
+git_config diff.elisp.xfuncname \
+ '^\(def[^[:space:]]+[[:space:]]+([^()[:space:]]+)'
+git_config 'diff.m4.xfuncname' '^((m4_)?define|A._DEFUN(_ONCE)?)\([^),]*'
+git_config 'diff.make.xfuncname' \
+ '^([$.[:alnum:]_].*:|[[:alnum:]_]+[[:space:]]*([*:+]?[:?]?|!?)=|define .*)'
+git_config 'diff.shell.xfuncname' \
+ '^([[:space:]]*[[:alpha:]_][[:alnum:]_]*[[:space:]]*\(\)|[[:alpha:]_][[:alnum:]_]*=)'
+git_config diff.texinfo.xfuncname \
+ '^@node[[:space:]]+([^,[:space:]][^,]+)'
+
+
+# Install Git hooks.
+
+tailored_hooks=
+sample_hooks=
+
+for hook in commit-msg pre-commit; do
+ cmp build-aux/git-hooks/$hook .git/hooks/$hook >/dev/null 2>&1 ||
tailored_hooks="$tailored_hooks $hook"
- done
- for hook in applypatch-msg pre-applypatch; do
- test ! -r .git/hooks/$hook.sample ||
- cmp .git/hooks/$hook.sample .git/hooks/$hook >/dev/null 2>&1 ||
+done
+for hook in applypatch-msg pre-applypatch; do
+ src=.git/hooks/$hook.sample
+ cmp "$src" .git/hooks/$hook >/dev/null 2>&1 ||
sample_hooks="$sample_hooks $hook"
- done
+done
- if test -n "$tailored_hooks$sample_hooks"; then
+if test -n "$tailored_hooks$sample_hooks"; then
+ if $do_git; then
echo "Installing git hooks..."
- case `cp --help 2>/dev/null` in
- *--backup*--verbose*)
- cp_options='--backup=numbered --verbose';;
- *)
- cp_options='-f';;
- esac
-
if test -n "$tailored_hooks"; then
for hook in $tailored_hooks; do
- cp $cp_options build-aux/git-hooks/$hook .git/hooks || exit
- chmod a-w .git/hooks/$hook || exit
+ dst=.git/hooks/$hook
+ cp $cp_options build-aux/git-hooks/$hook "$dst" || exit
+ chmod a-w "$dst" || exit
done
fi
chmod a-w .git/hooks/$hook || exit
done
fi
+ else
+ git_was_ok=false
fi
fi
-echo "You can now run './configure'."
+if test ! -f configure; then
+ echo "You can now run '$0 autoconf'."
+elif test -e .git && test $git_was_ok = false && test $do_git = false; then
+ echo "You can now run '$0 git'."
+elif test ! -f config.status ||
+ test -n "`find src/stamp-h.in -newer config.status`"; then
+ echo "You can now run './configure'."
+fi
exit 0