1 | #!/bin/sh |
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2 | # |
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3 | # install - install a program, script, or datafile |
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4 | # This comes from X11R5 (mit/util/scripts/install.sh). |
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5 | # |
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6 | # Copyright 1991 by the Massachusetts Institute of Technology |
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7 | # |
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8 | # Permission to use, copy, modify, distribute, and sell this software and its |
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9 | # documentation for any purpose is hereby granted without fee, provided that |
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10 | # the above copyright notice appear in all copies and that both that |
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11 | # copyright notice and this permission notice appear in supporting |
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12 | # documentation, and that the name of M.I.T. not be used in advertising or |
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13 | # publicity pertaining to distribution of the software without specific, |
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14 | # written prior permission. M.I.T. makes no representations about the |
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15 | # suitability of this software for any purpose. It is provided "as is" |
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16 | # without express or implied warranty. |
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17 | # |
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18 | # Calling this script install-sh is preferred over install.sh, to prevent |
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19 | # `make' implicit rules from creating a file called install from it |
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20 | # when there is no Makefile. |
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21 | # |
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22 | # This script is compatible with the BSD install script, but was written |
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23 | # from scratch. It can only install one file at a time, a restriction |
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24 | # shared with many OS's install programs. |
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25 | |
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26 | |
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27 | # set DOITPROG to echo to test this script |
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28 | |
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29 | # Don't use :- since 4.3BSD and earlier shells don't like it. |
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30 | doit="${DOITPROG-}" |
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31 | |
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32 | |
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33 | # put in absolute paths if you don't have them in your path; or use env. vars. |
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34 | |
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35 | mvprog="${MVPROG-mv}" |
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36 | cpprog="${CPPROG-cp}" |
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37 | chmodprog="${CHMODPROG-chmod}" |
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38 | chownprog="${CHOWNPROG-chown}" |
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39 | chgrpprog="${CHGRPPROG-chgrp}" |
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40 | stripprog="${STRIPPROG-strip}" |
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41 | rmprog="${RMPROG-rm}" |
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42 | mkdirprog="${MKDIRPROG-mkdir}" |
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43 | |
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44 | transformbasename="" |
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45 | transform_arg="" |
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46 | instcmd="$mvprog" |
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47 | chmodcmd="$chmodprog 0755" |
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48 | chowncmd="" |
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49 | chgrpcmd="" |
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50 | stripcmd="" |
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51 | rmcmd="$rmprog -f" |
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52 | mvcmd="$mvprog" |
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53 | src="" |
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54 | dst="" |
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55 | dir_arg="" |
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56 | |
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57 | while [ x"$1" != x ]; do |
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58 | case "$1" in |
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59 | -c) instcmd=$cpprog |
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60 | shift |
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61 | continue;; |
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62 | |
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63 | -d) dir_arg=true |
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64 | shift |
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65 | continue;; |
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66 | |
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67 | -m) chmodcmd="$chmodprog $2" |
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68 | shift |
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69 | shift |
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70 | continue;; |
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71 | |
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72 | -o) chowncmd="$chownprog $2" |
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73 | shift |
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74 | shift |
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75 | continue;; |
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76 | |
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77 | -g) chgrpcmd="$chgrpprog $2" |
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78 | shift |
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79 | shift |
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80 | continue;; |
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81 | |
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82 | -s) stripcmd=$stripprog |
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83 | shift |
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84 | continue;; |
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85 | |
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86 | -t=*) transformarg=`echo $1 | sed 's/-t=//'` |
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87 | shift |
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88 | continue;; |
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89 | |
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90 | -b=*) transformbasename=`echo $1 | sed 's/-b=//'` |
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91 | shift |
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92 | continue;; |
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93 | |
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94 | *) if [ x"$src" = x ] |
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95 | then |
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96 | src=$1 |
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97 | else |
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98 | # this colon is to work around a 386BSD /bin/sh bug |
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99 | : |
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100 | dst=$1 |
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101 | fi |
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102 | shift |
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103 | continue;; |
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104 | esac |
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105 | done |
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106 | |
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107 | if [ x"$src" = x ] |
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108 | then |
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109 | echo "install: no input file specified" >&2 |
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110 | exit 1 |
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111 | else |
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112 | true |
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113 | fi |
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114 | |
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115 | if [ x"$dir_arg" != x ]; then |
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116 | dst=$src |
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117 | src="" |
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118 | |
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119 | if [ -d "$dst" ]; then |
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120 | instcmd=: |
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121 | chmodcmd="" |
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122 | else |
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123 | instcmd=$mkdirprog |
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124 | fi |
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125 | else |
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126 | |
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127 | # Waiting for this to be detected by the "$instcmd $src $dsttmp" command |
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128 | # might cause directories to be created, which would be especially bad |
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129 | # if $src (and thus $dsttmp) contains '*'. |
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130 | |
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131 | if [ -f "$src" -o -d "$src" ] |
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132 | then |
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133 | true |
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134 | else |
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135 | echo "install: $src does not exist" >&2 |
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136 | exit 1 |
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137 | fi |
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138 | |
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139 | if [ x"$dst" = x ] |
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140 | then |
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141 | echo "install: no destination specified" >&2 |
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142 | exit 1 |
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143 | else |
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144 | true |
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145 | fi |
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146 | |
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147 | # If destination is a directory, append the input filename; if your system |
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148 | # does not like double slashes in filenames, you may need to add some logic |
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149 | |
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150 | if [ -d "$dst" ] |
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151 | then |
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152 | dst=$dst/`basename "$src"` |
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153 | else |
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154 | true |
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155 | fi |
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156 | fi |
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157 | |
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158 | ## this sed command emulates the dirname command |
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159 | dstdir=`echo "$dst" | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'` |
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160 | |
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161 | # Make sure that the destination directory exists. |
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162 | # this part is taken from Noah Friedman's mkinstalldirs script |
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163 | |
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164 | # Skip lots of stat calls in the usual case. |
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165 | if [ ! -d "$dstdir" ]; then |
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166 | defaultIFS=' |
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167 | ' |
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168 | IFS="${IFS-$defaultIFS}" |
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169 | |
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170 | oIFS=$IFS |
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171 | # Some sh's can't handle IFS=/ for some reason. |
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172 | IFS='%' |
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173 | set - `echo "$dstdir" | sed -e 's@/@%@g' -e 's@^%@/@'` |
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174 | IFS=$oIFS |
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175 | |
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176 | pathcomp='' |
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177 | |
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178 | while [ $# -ne 0 ] ; do |
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179 | pathcomp=$pathcomp$1 |
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180 | shift |
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181 | |
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182 | if [ ! -d "$pathcomp" ] ; |
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183 | then |
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184 | $mkdirprog "$pathcomp" |
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185 | else |
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186 | true |
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187 | fi |
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188 | |
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189 | pathcomp=$pathcomp/ |
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190 | done |
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191 | fi |
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192 | |
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193 | if [ x"$dir_arg" != x ] |
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194 | then |
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195 | $doit $instcmd "$dst" && |
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196 | |
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197 | if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dst"; else true ; fi && |
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198 | if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dst"; else true ; fi && |
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199 | if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dst"; else true ; fi && |
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200 | if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dst"; else true ; fi |
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201 | else |
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202 | |
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203 | # If we're going to rename the final executable, determine the name now. |
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204 | |
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205 | if [ x"$transformarg" = x ] |
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206 | then |
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207 | dstfile=`basename "$dst"` |
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208 | else |
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209 | dstfile=`basename "$dst" $transformbasename | |
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210 | sed $transformarg`$transformbasename |
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211 | fi |
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212 | |
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213 | # don't allow the sed command to completely eliminate the filename |
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214 | |
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215 | if [ x"$dstfile" = x ] |
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216 | then |
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217 | dstfile=`basename "$dst"` |
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218 | else |
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219 | true |
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220 | fi |
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221 | |
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222 | # Make a couple of temp file names in the proper directory. |
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223 | |
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224 | dsttmp=$dstdir/#inst.$$# |
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225 | rmtmp=$dstdir/#rm.$$# |
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226 | |
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227 | # Trap to clean up temp files at exit. |
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228 | |
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229 | trap 'status=$?; rm -f "$dsttmp" "$rmtmp" && exit $status' 0 |
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230 | trap '(exit $?); exit' 1 2 13 15 |
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231 | |
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232 | # Move or copy the file name to the temp name |
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233 | |
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234 | $doit $instcmd $src "$dsttmp" && |
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235 | |
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236 | # and set any options; do chmod last to preserve setuid bits |
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237 | |
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238 | # If any of these fail, we abort the whole thing. If we want to |
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239 | # ignore errors from any of these, just make sure not to ignore |
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240 | # errors from the above "$doit $instcmd $src $dsttmp" command. |
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241 | |
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242 | if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dsttmp";else true;fi && |
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243 | if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dsttmp";else true;fi && |
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244 | if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dsttmp";else true;fi && |
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245 | if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dsttmp";else true;fi && |
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246 | |
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247 | # Now remove or move any old file at destination location. We try this |
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248 | # two ways since rm can't unlink itself on some systems and the destination |
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249 | # file might be busy for other reasons. In this case, the final cleanup |
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250 | # might fail but the new file should still install successfully. |
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251 | |
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252 | { |
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253 | if [ -f "$dstdir/$dstfile" ] |
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254 | then |
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255 | $doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null || |
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256 | $doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null || |
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257 | { |
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258 | echo "install: cannot unlink or rename $dstdir/$dstfile" >&2 |
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259 | (exit 1); exit |
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260 | } |
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261 | else |
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262 | true |
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263 | fi |
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264 | } && |
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265 | |
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266 | # Now rename the file to the real destination. |
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267 | |
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268 | $doit $mvcmd "$dsttmp" "$dstdir/$dstfile" |
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269 | |
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270 | fi && |
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271 | |
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272 | # The final little trick to "correctly" pass the exit status to the exit trap. |
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273 | |
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274 | { |
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275 | (exit 0); exit |
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276 | } |
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