- Moving the building to a separate build dir

- Adding a script for building various awks

Makefile

@@ -1,15 +1,19 @@
+bashes = build/bin/bash1 build/bin/bash2 build/bin/bash3 build/bin/bash4
+awks = build/bin/bwk build/bin/gawk3 build/bin/gawk4 build/bin/mawk build/bin/nawk build/bin/oawk
 
 evalbot: hda
 
 
-initramfs.cpio.gz: bash1.14.7 bash2.05b bash3.2 bash4.2
-	./generate-initramfs
+initramfs.cpio.gz: $(bashes) $(awks) initramfs
 	{ cd initramfs && pax -x sv4cpio -w .; } | gzip -9 > initramfs.cpio.gz
 
-bzImage:
+initramfs: generate-initramfs
+	./generate-initramfs
+
+build/bzImage:
 	./build-linux http://www.kernel.org/pub/linux/kernel/v3.0/linux-3.5.4.tar.bz2
 
-hda: initramfs.cpio.gz bzImage
+hda: initramfs.cpio.gz build/bzImage
 	qemu-img create -f qcow2 hda.tmp 1M
 	./savestate hda.tmp _sh
 	./savestate hda.tmp _4
@@ -20,14 +24,27 @@ hda: initramfs.cpio.gz bzImage
 	mv hda.tmp hda
 
 clean: 
-	rm -rf bash-*/ linux-*/
-	rm -f initramfs.cpio.gz hda hda.tmp fifo *~ bash1.14.7 bash2.05b bash3.2 bash4.2 bzImage
-
-bash1.14.7:  
-	./build-bash 1.14.7
-bash2.05b:
-	./build-bash 2.05b
-bash3.2:
-	./build-bash 3.2
-bash4.2:
-	./build-bash 4.2
+	rm -rf build/ initramfs/
+	rm -f initramfs.cpio.gz hda hda.tmp fifo *~
+
+build/bin/bash1:
+	./build-bash 1.14.7 bash1
+build/bin/bash2:
+	./build-bash 2.05b bash2
+build/bin/bash3:
+	./build-bash 3.2 bash3
+build/bin/bash4:
+	./build-bash 4.2 bash4
+
+build/bin/bwk:
+	./build-awk bwk
+build/bin/gawk3:
+	./build-awk gawk 3.1.8 gawk3
+build/bin/gawk4:
+	./build-awk gawk 4.0.1 gawk4
+build/bin/mawk:
+	./build-awk mawk
+build/bin/nawk:
+	./build-awk nawk
+build/bin/oawk:
+	./build-awk oawk

build-awk

@@ -0,0 +1,50 @@
+#!/bin/bash
+
+awk=$1 version=$2 bin_name=${3:-$1$2}
+
+mkdir -p build/bin &&
+cd build &&
+case $awk in
+    bwk)
+        wget -c -O bwk.tar.gz http://plan9.bell-labs.com/cm/cs/who/bwk/awk.tar.gz &&
+        mkdir -p bwk &&
+        cd bwk &&
+        gzip -cd ../bwk.tar.gz | pax -r &&
+        make CFLAGS=-D_POSIX_C_SOURCE=200112L &&
+        cp a.out ../bin/bwk
+    ;;
+    oawk)
+        wget -c -O heirloom-070715.tar.bz2 http://sourceforge.net/projects/heirloom/files/heirloom/070715/heirloom-070715.tar.bz2/download &&
+        bzip2 -cd heirloom-070715.tar.bz2 | pax -r &&
+        cd heirloom-070715 &&
+        make {libcommon,libuxre,oawk}/Makefile
+        make -C libcommon &&
+        make -C libuxre &&
+        make -C oawk &&
+        cp oawk/awk ../bin/oawk
+    ;;
+    nawk)
+        wget -c -O nawk.tar.gz http://www.cs.princeton.edu/~bwk/btl.mirror/awk.tar.gz &&
+        mkdir -p nawk &&
+        cd nawk &&
+        gzip -cd ../nawk.tar.gz | pax -r &&
+        make &&
+        cp a.out ../bin/nawk
+    ;;
+    gawk)
+        wget -c -O "gawk-$version.tar.gz" "http://ftp.gnu.org/gnu/gawk/gawk-$version.tar.gz" &&
+        gzip -cd "gawk-$version.tar.gz" | pax -r &&
+        cd "gawk-$version" &&
+        ./configure &&
+        make &&
+        cp gawk "../bin/$bin_name"
+    ;;
+    mawk)
+        wget -c -O mawk.tar.gz http://invisible-island.net/datafiles/release/mawk.tar.gz &&
+        gzip -cd mawk.tar.gz | pax -rs '|^[^/]*|mawk|' &&
+        cd mawk &&
+        ./configure &&
+        make &&
+        cp mawk ../bin/mawk
+    ;;
+esac

build-bash

@@ -1,8 +1,10 @@
 #!/bin/bash
 
-version=$1
+version=$1 bin_name=${2:-bash$version}
 
-wget -nc "http://ftp.gnu.org/gnu/bash/bash-$version.tar.gz" &&
+mkdir -p build/bin &&
+cd build &&
+wget -c -O "bash-$version.tar.gz" "http://ftp.gnu.org/gnu/bash/bash-$version.tar.gz" &&
 gzip -cd "bash-$version.tar.gz" | pax -r || exit
 
 configure_opts=()
@@ -96,4 +98,4 @@ fi
 
 ./configure "${configure_opts[@]}" &&
 make &&
-cp bash "../bash$version"
+cp bash "../bin/$bin_name"

build-linux

@@ -4,6 +4,8 @@ if [[ $1 != *.bz2 ]]; then
     printf 'No url or filename to a linux bzip2ed tarball provided.\n' >&2
     exit 1
 fi
+mkdir -p build/ &&
+cd build || exit
 
 kernel=$1
 if [[ ! -f $kernel ]]; then # assuming url
@@ -13,7 +15,7 @@ fi
 
 bzip2 -cd "$kernel" | pax -r &&
 dir=${kernel##*/} dir=${dir%.tar.bz2} &&
-cp kernel.config "$dir/.config" &&
+cp ../kernel.config "$dir/.config" &&
 cd "$dir" &&
 make silentoldconfig &&
 make &&

generate-initramfs

@@ -1,9 +1,6 @@
 #!/bin/bash
 
-#cp() { echo cp "$@"; }
-#mkdir() { echo mkdir "$@"; }
-#ln() { echo ln "$@"; }
-#chmod() { echo chmod "$@"; }
+PATH=$PWD/build/bin:$PATH
 
 declare -A commands='(
 
@@ -184,11 +181,9 @@ declare -A commands='(
     ## Other useful commands (non-POSIX)
     [bzip2]="a block-sorting file compressor, v1.0.6"
     [dash]="command interpreter (shell)"
-    [gawk]="pattern scanning and processing language"
     [getent]="get entries from administrative database"
     [gzip]="compress or expand files"
     [hostname]="show or set the system'\''s host name"
-    [mawk]="pattern scanning and text processing language"
     [mknod]="make block or character special files"
     [mktemp]="create a temporary file or directory"
     [mount]="mount a filesystem"
@@ -198,8 +193,19 @@ declare -A commands='(
     [strace]="trace system calls and signals"
     [tac]="concatenate and print files in reverse"
     [umount]="unmount file systems"
-)'
 
+    ## Built with build-bash and build-awk
+    [bash1]="GNU Bourne-Again SHell 1.x"
+    [bash2]="GNU Bourne-Again SHell 2.x"
+    [bash3]="GNU Bourne-Again SHell 3.x"
+    [bash4]="GNU Bourne-Again SHell 4.x"
+    [bwk]="pattern-directed scanning and processing language"
+    [gawk3]="pattern scanning and processing language"
+    [gawk4]="pattern scanning and processing language"
+    [mawk]="pattern scanning and text processing language"
+    [nawk]="pattern-directed scanning and processing language"
+    [oawk]="pattern scanning and processing language"
+)'
 
 mkdir -p initramfs/{bin,dev,etc,lib,root,usr/share}
 
@@ -348,24 +354,29 @@ esac
 printf "(shell exited with %d)\n" "$?"
 printf o > /proc/sysrq-trigger
 EOF
-chmod +x initramfs/init
+chmod 750 initramfs/init
 
-# Shells
 shopt -s nullglob
-f=(bash1.*); (( ${#f[@]} )) && cp "${f[-1]}" "initramfs/bin/bash1" && ln -sf bash1 initramfs/bin/bash
-f=(bash2.*); (( ${#f[@]} )) && cp "${f[-1]}" "initramfs/bin/bash2" && ln -sf bash2 initramfs/bin/bash
-f=(bash3.*); (( ${#f[@]} )) && cp "${f[-1]}" "initramfs/bin/bash3" && ln -sf bash3 initramfs/bin/bash
-f=(bash4.*); (( ${#f[@]} )) && cp "${f[-1]}" "initramfs/bin/bash4" && ln -sf bash4 initramfs/bin/bash
-
-for shell in dash ksh bash{4..1}; do
-    [[ -e initramfs/bin/$shell ]] || continue
-    ln -sf "$shell" initramfs/bin/sh
+# decide on a /bin/bash
+bashes=( initramfs/bin/bash[1-4] )
+ln -sf "${bashes[-1]##*/}" initramfs/bin/bash || exit
+
+
+# decide on a /bin/sh
+for shell in initramfs/bin/{dash,ksh,bash}; do
+    [[ -e $shell ]] || continue
+    ln -sf "${shell##*/}" initramfs/bin/sh
     break
 done
 
-# awk
-for awk in gawk mawk; do
+[[ -e initramfs/bin/sh ]] || exit
+
+# awk symlinks
+awks=( initramfs/bin/gawk?* )
+ln -s "${awks[-1]##*/}" initramfs/bin/gawk || exit
+
+for awk in nawk mawk gawk oawk bwk; do
     [[ -e initramfs/bin/$awk ]] || continue;
-    ln -sf "$awk" initramfs/bin/awk
+    ln -s "$awk" initramfs/bin/awk
     break
 done