From 0b3e4015fe1aed7310719d1ccb9a84c22512a9d1 Mon Sep 17 00:00:00 2001
From: Ian Kelling <iank@fsf.org>
Date: Tue, 8 Sep 2020 15:58:56 -0400
Subject: [PATCH] build nox emacs for remote servers

---
 emacs | 85 +++++++++++++++++++++++++++++++++++++++++------------------
 1 file changed, 59 insertions(+), 26 deletions(-)

diff --git a/emacs b/emacs
index 6acef0b..6b5ec5c 100755
--- a/emacs
+++ b/emacs
@@ -29,14 +29,16 @@ while [[ $1 == -* ]]; do
     -u) update=true; shift ;;
     -p) show_pkgs=true; shift ;;
     --) break ;;
+    *) echo "$0: error: bad arg: $1" >&2; exit 1 ;;
   esac
 done
 
-e() { echo "$*"; "$@"; }
 
 # Og = optmize, but keep gdb working
 export CFLAGS="-Og -g3"
 
+export DEBIAN_FRONTEND=noninteractive
+pupdate
 for x in {35..24}; do
   if apt-cache showsrc emacs$x 2>/dev/null |grep . &>/dev/null; then
     echo $x
@@ -71,22 +73,25 @@ fi
 pi ${pkgs[@]}
 
 #git repo
-dir=/a/opt/emacs-`distro-name`
-dir+=`debian-archive` ||: # we may not be on debian
+dir=/a/opt/emacs-$(distro-name)$(distro-num)
+
+# e/e because autofs failing to mount will make it so
+# you cant ls whatever directory it is in, so we
+# need an extra directory
+dirs=($dir $dir-nox/.iank/e/e)
 
 if [[ ! -e $dir ]]; then
-  e cp -ar /a/opt/emacs $dir
+  m cp -ar /a/opt/emacs $dir
   recompile=true
 fi
-e cd $dir
 
-rev=$(cat ~/.local/emacs-build-git-revision 2>/dev/null) ||:
-head=$(git rev-parse HEAD)
 
+m cd $dir
 
+rev=$(cat ~/.local/emacs-build-git-revision 2>/dev/null) ||:
+head=$(git rev-parse HEAD)
 
 if $recompile || [[ $rev != "$head" ]]; then
-
   case $(distro-name) in
     fedora )
       logq s yum-builddep -y emacs
@@ -106,24 +111,39 @@ if $recompile || [[ $rev != "$head" ]]; then
       logq p -y build-dep $latest_emacs
       ;;&
   esac
+fi
 
-
-
+nox=false
+for d in ${dirs[@]}; do
+  if [[ -d $d ]]; then
+    m cd $d
+  fi
+  if $nox; then
+    m mkdir -p ${d%/*}
+    m rsync --delete -ra $dir/ $d
+    mp=$HOME/.iank/e/e
+    if mountpoint $mp &>/dev/null; then
+      m sudo umount $mp
+    fi
+    m mkdir -p $mp
+    m sudo mount -o bind $d $mp
+    m sudo chown $USER:$USER $mp
+    m cd $mp
+  fi
   if $recompile; then
     # todo, consider when this should be uncommented
     #logq s make uninstall
-    find ~/.emacs.d/ -name '*.elc' -delete
+    m find ~/.emacs.d/ -name '*.elc' -delete
 
     # git version
     if [[ $1 ]]; then
-      e i clean -xxxfd
+      m i clean -xxxfd
     elif $update; then
-      e i fetch
-      e i clean -xxxffd
-      e i reset --hard origin/master
-      e i clean -xxxffd
+      m i fetch
+      m i clean -xxxffd
+      m i reset --hard origin/master
+      m i clean -xxxffd
     fi
-
     # autogen is usually only for the first build, assume it works
     logq ./autogen.sh all
     # I tried changing O2 to O3, don't know if it made it faster or slower so I went back to 02.
@@ -135,25 +155,38 @@ if $recompile || [[ $rev != "$head" ]]; then
     export CFLAGS='-g3 -Og'
     #CFLAGS='-std=gnu99 -g3 -O2' logq ./configure --enable-link-time-optimization
     # on ubuntu 12.04, the above fails, says my c compiler won't work, so intead, just use defaults
+  fi
+  if $nox; then
+    # mix of flags from arch and debians build flags
+    # note, youd think we could just run make again, but the
+    # build system isnt smart enough, we have to recompile
+    # from scratch.
+    logq ./configure --without-x --without-sound --without-gsettings --without-gconf
+    ln -s ~/.emacs.d .
+  else
     logq ./configure
+  fi
+  if $recompile; then
     logq make -j `nproc` bootstrap
   fi
 
-
-  # temporarily for testing multiple versions
   logq make -j `nproc`
-  logq sudo make install
+  if ! $nox; then
+    logq sudo make install
+    # make emacs always work for root
+    sudo /a/exe/lnf /usr/local/bin/emacs /usr/bin
 
-  # make emacs always work for root
-  sudo /a/exe/lnf /usr/local/bin/emacs /usr/bin
-
-  echo $head >~/.local/emacs-build-git-revision
-fi
+    echo $head >~/.local/emacs-build-git-revision
+  fi
+  nox=true
+done
 
 #git clone https://github.com/djcb/mu
-# note: master failed, i moved back to the commit before a bug https://github.com/djcb/mu/issues/1400
+# note: master failed on t8, i moved back to the commit before a bug
+# https://github.com/djcb/mu/issues/1400
 # from its HACKING file
 
+
 cd /a/opt/mu
 
 rev=$(cat ~/.local/mu-build-git-revision 2>/dev/null) ||:
-- 
2.30.2