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annotate scripts/install.sh @ 1572:da1bf31ed322 draft

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Tweak the "ignoring return value" fortify workaround for readlinkat. We zero the buffer and if the link read fails that's left alone, so it's ok for the symlink not to be there. Unfortunately, typecasting the return value to (void) doesn't shut up gcc, and having an if(); with the semicolon on the same line doesn't shut up llvm. (The semicolon on a new line would, but C does not have significant whitespace and I'm not going to humor llvm if it plans to start.) So far, empty curly brackets consistently get the warning to shut up.
author Rob Landley <rob@landley.net>
date Mon, 24 Nov 2014 17:23:23 -0600
parents 1c15ba60aa64
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/bin/bash
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2
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3 # Grab default values for $CFLAGS and such.
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4
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5 source ./configure
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6
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7 # Parse command line arguments.
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8
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9 [ -z "$PREFIX" ] && PREFIX="."
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10
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11 LONG_PATH=""
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12 while [ ! -z "$1" ]
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13 do
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14 # Create symlinks instead of hardlinks?
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15
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16 [ "$1" == "--symlink" ] && LINK_TYPE="-s"
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17
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18 # Uninstall?
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19
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20 [ "$1" == "--uninstall" ] && UNINSTALL=1
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21
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22 # Delete destination command if it exists?
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23
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24 [ "$1" == "--force" ] && DO_FORCE="-f"
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25
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26 # Use {,usr}/{bin,sbin} paths instead of all files in one directory?
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27
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28 if [ "$1" == "--long" ]
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29 then
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30 LONG_PATH="bin/"
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31 fi
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32
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33 shift
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34 done
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35
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36 echo "Compile instlist..."
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37
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38 $DEBUG $HOSTCC -I . scripts/install.c -o generated/instlist || exit 1
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39 COMMANDS="$(generated/instlist $LONG_PATH)"
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40
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41 echo "Install commands..."
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42
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43 # Copy toybox itself
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44
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45 if [ -z "$UNINSTALL" ]
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46 then
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47 mkdir -p ${PREFIX}/${LONG_PATH} || exit 1
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48 cp toybox ${PREFIX}/${LONG_PATH} || exit 1
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49 else
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50 rm "${PREFIX}/${LONG_PATH}/toybox" 2>/dev/null
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51 rmdir "${PREFIX}/${LONG_PATH}" 2>/dev/null
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52 fi
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53 cd "${PREFIX}"
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54
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55 # Make links to toybox
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56
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57 for i in $COMMANDS
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58 do
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59 # Figure out target of link
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60
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61 if [ -z "$LONG_PATH" ]
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62 then
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63 DOTPATH=""
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64 else
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65 # Create subdirectory for command to go in (if necessary)
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66
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67 DOTPATH="$(echo $i | sed 's@\(.*/\).*@\1@')"
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68 if [ -z "$UNINSTALL" ]
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69 then
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70 mkdir -p "$DOTPATH" || exit 1
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71 else
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72 rmdir "$DOTPATH" 2>/dev/null
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73 fi
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74
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75 if [ -z "$LINK_TYPE" ]
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76 then
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77 dotpath="bin/"
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78 else
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79 if [ "$DOTPATH" != "$LONG_PATH" ]
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80 then
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81 DOTPATH="$(echo $DOTPATH | sed -e 's@[^/]*/@../@g')"$LONG_PATH
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82 else
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83 DOTPATH=""
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84 fi
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85 fi
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86 fi
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87
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88 # Create link
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89 [ -z "$UNINSTALL" ] &&
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90 ln $DO_FORCE $LINK_TYPE ${DOTPATH}toybox $i ||
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91 rm $i 2>/dev/null
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92 done