1#!/usr/local/bin/bash
2
3# Build a standalone toybox command
4
5if [ -z "$1" ]
6then
7  echo "usage: single.sh command..." >&2
8  exit 1
9fi
10
11# Add trailing / to PREFIX when it's set but hasn't got one
12[ "$PREFIX" == "${PREFIX%/}" ] && PREFIX="${PREFIX:+$PREFIX/}"
13
14# Harvest TOYBOX_* symbols from .config
15if [ ! -e .config ]
16then
17  echo "Need .config for toybox global settings. Run defconfig/menuconfig." >&2
18  exit 1
19fi
20
21# Force dependencies to rebuild headers if we build multiplexer after this.
22touch -c .config
23
24export KCONFIG_CONFIG=.singleconfig
25for i in "$@"
26do
27  echo -n "$i:"
28  TOYFILE="$(egrep -l "TOY[(]($i)[ ,]" toys/*/*.c)"
29
30  if [ -z "$TOYFILE" ]
31  then
32    echo "Unknown command '$i'" >&2
33    exit 1
34  fi
35
36  make allnoconfig > /dev/null || exit 1
37
38  DEPENDS=
39  MPDEL=
40  if [ "$i" == sh ]
41  then
42    DEPENDS="$(gsed -n 's/USE_\([^(]*\)(NEWTOY([^,]*,.*TOYFLAG_MAYFORK.*/\1/p' toys/*/*.c)"
43  else
44    MPDEL='s/CONFIG_TOYBOX=y/# CONFIG_TOYBOX is not set/;t'
45  fi
46
47  # Enable stuff this command depends on
48  DEPENDS="$({ echo $DEPENDS; gsed -n "/^config *$i"'$/,/^$/{s/^[ \t]*depends on //;T;s/[!][A-Z0-9_]*//g;s/ *&& */|/g;p}' $TOYFILE; sed -n 's/CONFIG_\(TOYBOX_[^=]*\)=y/\1/p' .config;}| xargs | tr ' ' '|')"
49  NAME=$(echo $i | tr a-z- A-Z_)
50  gsed -ri -e "$MPDEL" \
51    -e "s/# (CONFIG_($NAME|${NAME}_.*${DEPENDS:+|$DEPENDS})) is not set/\1=y/" \
52    "$KCONFIG_CONFIG" || exit 1 #&& grep "CONFIG_TOYBOX_" .config >> "$KCONFIG_CONFIG" || exit 1
53
54  export OUTNAME="$PREFIX$i"
55  rm -f "$OUTNAME" &&
56  scripts/make.sh || exit 1
57done
58