mirror of
https://github.com/sheumann/hush.git
synced 2024-12-21 23:29:34 +00:00
100 lines
2.9 KiB
Bash
Executable File
100 lines
2.9 KiB
Bash
Executable File
#!/bin/sh
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test $# -ge 2 || { echo "Syntax: $0 SRCTREE OBJTREE"; exit 1; }
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# cd to objtree
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cd -- "$2" || { echo "Syntax: $0 SRCTREE OBJTREE"; exit 1; }
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srctree="$1"
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# (Re)generate include/applets.h
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src="$srctree/include/applets.src.h"
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dst="include/applets.h"
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s=`sed -n 's@^//applet:@@p' -- "$srctree"/*/*.c "$srctree"/*/*/*.c`
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echo "/* DO NOT EDIT. This file is generated from applets.src.h */" >"$dst.$$.tmp"
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# Why "IFS='' read -r REPLY"??
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# This atrocity is needed to read lines without mangling.
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# IFS='' prevents whitespace trimming,
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# -r suppresses backslash handling.
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while IFS='' read -r REPLY; do
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test x"$REPLY" = x"INSERT" && REPLY="$s"
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printf "%s\n" "$REPLY"
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done <"$src" >>"$dst.$$.tmp"
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if test -f "$dst" && cmp -s "$dst.$$.tmp" "$dst"; then
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rm -- "$dst.$$.tmp"
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else
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echo " GEN $dst"
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mv -- "$dst.$$.tmp" "$dst"
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fi
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# (Re)generate include/usage.h
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src="$srctree/include/usage.src.h"
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dst="include/usage.h"
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# We add line continuation backslash after each line,
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# and insert empty line before each line which doesn't start
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# with space or tab
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# (note: we need to use \\\\ because of ``)
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s=`sed -n -e 's@^//usage:\([ \t].*\)$@\1 \\\\@p' -e 's@^//usage:\([^ \t].*\)$@\n\1 \\\\@p' -- "$srctree"/*/*.c "$srctree"/*/*/*.c`
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echo "/* DO NOT EDIT. This file is generated from usage.src.h */" >"$dst.$$.tmp"
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# Why "IFS='' read -r REPLY"??
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# This atrocity is needed to read lines without mangling.
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# IFS='' prevents whitespace trimming,
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# -r suppresses backslash handling.
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while IFS='' read -r REPLY; do
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test x"$REPLY" = x"INSERT" && REPLY="$s"
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printf "%s\n" "$REPLY"
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done <"$src" >>"$dst.$$.tmp"
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if test -f "$dst" && cmp -s "$dst.$$.tmp" "$dst"; then
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rm -- "$dst.$$.tmp"
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else
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echo " GEN $dst"
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mv -- "$dst.$$.tmp" "$dst"
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fi
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# (Re)generate */Kbuild and */Config.in
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find -type d | while read -r d; do
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d="${d#./}"
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src="$srctree/$d/Kbuild.src"
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dst="$d/Kbuild"
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if test -f "$src"; then
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#echo " CHK $dst"
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s=`sed -n 's@^//kbuild:@@p' -- "$srctree/$d"/*.c`
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echo "# DO NOT EDIT. This file is generated from Kbuild.src" >"$dst.$$.tmp"
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while IFS='' read -r REPLY; do
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test x"$REPLY" = x"INSERT" && REPLY="$s"
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printf "%s\n" "$REPLY"
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done <"$src" >>"$dst.$$.tmp"
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if test -f "$dst" && cmp -s "$dst.$$.tmp" "$dst"; then
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rm -- "$dst.$$.tmp"
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else
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echo " GEN $dst"
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mv -- "$dst.$$.tmp" "$dst"
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fi
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fi
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src="$srctree/$d/Config.src"
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dst="$d/Config.in"
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if test -f "$src"; then
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#echo " CHK $dst"
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s=`sed -n 's@^//config:@@p' -- "$srctree/$d"/*.c`
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echo "# DO NOT EDIT. This file is generated from Config.src" >"$dst.$$.tmp"
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while IFS='' read -r REPLY; do
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test x"$REPLY" = x"INSERT" && REPLY="$s"
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printf "%s\n" "$REPLY"
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done <"$src" >>"$dst.$$.tmp"
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if test -f "$dst" && cmp -s "$dst.$$.tmp" "$dst"; then
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rm -- "$dst.$$.tmp"
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else
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echo " GEN $dst"
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mv -- "$dst.$$.tmp" "$dst"
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fi
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fi
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done
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# Last read failed. This is normal. Don't exit with its error code:
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exit 0
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