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1 #!/bin/sh |
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2 # Convenience script for fetching auxiliary files that are omitted from |
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3 # the version control repository of this package. |
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4 |
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5 # Copyright (C) 2003-2022 Free Software Foundation, Inc. |
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6 # |
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7 # This program is free software: you can redistribute it and/or modify |
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8 # it under the terms of the GNU General Public License as published by |
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9 # the Free Software Foundation, either version 3 of the License, or |
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10 # (at your option) any later version. |
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11 # |
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12 # This program is distributed in the hope that it will be useful, |
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 # GNU General Public License for more details. |
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16 # |
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17 # You should have received a copy of the GNU General Public License |
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18 # along with this program. If not, see <https://www.gnu.org/licenses/>. |
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19 |
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20 # Originally written by Paul Eggert. The canonical version of this |
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21 # script is maintained as top/autopull.sh in gnulib. However, to be |
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22 # useful to your package, you should place a copy of it under version |
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23 # control in the top-level directory of your package. The intent is |
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24 # that all customization can be done with a bootstrap.conf file also |
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25 # maintained in your version control; gnulib comes with a template |
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26 # build-aux/bootstrap.conf to get you started. |
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27 # |
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28 # Alternatively, you can use an autopull.sh script that is specific |
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29 # to your package. |
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30 |
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31 scriptversion=2022-07-24.15; # UTC |
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32 |
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33 me="$0" |
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34 medir=`dirname "$me"` |
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35 |
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36 # Read the function library and the configuration. |
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37 . "$medir"/bootstrap-funclib.sh |
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38 |
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39 # Ensure that CDPATH is not set. Otherwise, the output from cd |
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40 # would cause trouble in at least one use below. |
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41 (unset CDPATH) >/dev/null 2>&1 && unset CDPATH |
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42 |
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43 usage() { |
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44 cat <<EOF |
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45 Usage: $me [OPTION]... |
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46 Bootstrap this package from the checked-out sources. |
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47 |
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48 Optional environment variables: |
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49 GNULIB_SRCDIR Specifies the local directory where gnulib |
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50 sources reside. Use this if you already |
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51 have gnulib sources on your machine, and |
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52 you want to use these sources. |
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53 GNULIB_REFDIR Specifies the local directory where a gnulib |
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54 repository (with a .git subdirectory) resides. |
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55 Use this if you already have gnulib sources |
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56 and history on your machine, and do not want |
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57 to waste your bandwidth downloading them again. |
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58 GNULIB_URL Cloneable URL of the gnulib repository. |
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59 |
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60 Options: |
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61 --bootstrap-sync if this bootstrap script is not identical to |
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62 the version in the local gnulib sources, |
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63 update this script, and then restart it with |
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64 /bin/sh or the shell \$CONFIG_SHELL |
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65 --no-bootstrap-sync do not check whether bootstrap is out of sync |
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66 --force attempt to bootstrap even if the sources seem |
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67 not to have been checked out |
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68 --no-git do not use git to update gnulib. Requires that |
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69 \$GNULIB_SRCDIR or the --gnulib-srcdir option |
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70 points to a gnulib repository with the correct |
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71 revision |
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72 --skip-po do not download po files |
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73 EOF |
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74 bootstrap_print_option_usage_hook |
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75 cat <<EOF |
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76 If the file bootstrap.conf exists in the same directory as this script, its |
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77 contents are read as shell variables to configure the bootstrap. |
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78 |
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79 For build prerequisites, environment variables like \$AUTOCONF and \$AMTAR |
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80 are honored. |
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81 |
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82 Gnulib sources can be fetched in various ways: |
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83 |
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84 * If the environment variable GNULIB_SRCDIR is set (either as an |
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85 environment variable or via the --gnulib-srcdir option), then sources |
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86 are fetched from that local directory. If it is a git repository and |
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87 the configuration variable GNULIB_REVISION is set in bootstrap.conf, |
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88 then that revision is checked out. |
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89 |
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90 * Otherwise, if this package is in a git repository with a 'gnulib' |
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91 submodule configured, then that submodule is initialized and updated |
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92 and sources are fetched from there. If GNULIB_REFDIR is set (either |
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93 as an environment variable or via the --gnulib-refdir option) and is |
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94 a git repository, then it is used as a reference. |
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95 |
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96 * Otherwise, if the 'gnulib' directory does not exist, Gnulib sources |
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97 are cloned into that directory using git from \$GNULIB_URL, defaulting |
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98 to $default_gnulib_url. |
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99 If the configuration variable GNULIB_REVISION is set in bootstrap.conf, |
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100 then that revision is checked out. |
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101 |
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102 * Otherwise, the existing Gnulib sources in the 'gnulib' directory are |
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103 used. If it is a git repository and the configuration variable |
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104 GNULIB_REVISION is set in bootstrap.conf, then that revision is |
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105 checked out. |
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106 |
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107 If you maintain a package and want to pin a particular revision of the |
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108 Gnulib sources that has been tested with your package, then there are |
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109 two possible approaches: either configure a 'gnulib' submodule with the |
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110 appropriate revision, or set GNULIB_REVISION (and if necessary |
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111 GNULIB_URL) in bootstrap.conf. |
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112 |
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113 Running without arguments will suffice in most cases. |
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114 EOF |
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115 } |
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116 |
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117 # Parse options. |
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118 |
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119 # Use git to update gnulib sources |
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120 use_git=true |
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121 |
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122 for option |
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123 do |
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124 case $option in |
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125 --help) |
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126 usage |
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127 exit;; |
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128 --version) |
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129 set -e |
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130 echo "autopull.sh $scriptversion" |
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131 echo "$copyright" |
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132 exit 0 |
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133 ;; |
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134 --skip-po) |
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135 SKIP_PO=t;; |
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136 --force) |
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137 checkout_only_file=;; |
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138 --bootstrap-sync) |
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139 bootstrap_sync=true;; |
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140 --no-bootstrap-sync) |
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141 bootstrap_sync=false;; |
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142 --no-git) |
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143 use_git=false;; |
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144 *) |
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145 bootstrap_option_hook $option || die "$option: unknown option";; |
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146 esac |
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147 done |
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148 |
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149 $use_git || test -n "$GNULIB_SRCDIR" \ |
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150 || die "Error: --no-git requires \$GNULIB_SRCDIR environment variable or --gnulib-srcdir option" |
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151 test -z "$GNULIB_SRCDIR" || test -d "$GNULIB_SRCDIR" \ |
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152 || die "Error: \$GNULIB_SRCDIR environment variable or --gnulib-srcdir option is specified, but does not denote a directory" |
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153 |
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154 if test -n "$checkout_only_file" && test ! -r "$checkout_only_file"; then |
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155 die "Running this script from a non-checked-out distribution is risky." |
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156 fi |
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157 |
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158 check_build_prerequisites $use_git |
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159 |
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160 if $use_gnulib || $bootstrap_sync; then |
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161 prepare_GNULIB_SRCDIR |
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162 if $bootstrap_sync; then |
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163 upgrade_bootstrap |
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164 fi |
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165 fi |
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166 |
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167 # Find sha1sum, named gsha1sum on MacPorts, shasum on Mac OS X 10.6. |
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168 # Also find the compatible sha1 utility on the BSDs |
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169 if test x"$SKIP_PO" = x; then |
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170 find_tool SHA1SUM sha1sum gsha1sum shasum sha1 |
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171 fi |
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172 |
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173 # See if we can use gnulib's git-merge-changelog merge driver. |
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174 if $use_git && test -d .git && check_exists git; then |
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175 if git config merge.merge-changelog.driver >/dev/null ; then |
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176 : |
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177 elif check_exists git-merge-changelog; then |
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178 echo "$0: initializing git-merge-changelog driver" |
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179 git config merge.merge-changelog.name 'GNU-style ChangeLog merge driver' |
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180 git config merge.merge-changelog.driver 'git-merge-changelog %O %A %B' |
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181 else |
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182 echo "$0: consider installing git-merge-changelog from gnulib" |
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183 fi |
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184 fi |
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185 |
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186 # ----------------------------- Get translations. ----------------------------- |
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187 |
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188 download_po_files() { |
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189 subdir=$1 |
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190 domain=$2 |
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191 echo "$me: getting translations into $subdir for $domain..." |
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192 cmd=$(printf "$po_download_command_format" "$subdir" "$domain") |
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193 eval "$cmd" |
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194 } |
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195 |
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196 # Mirror .po files to $po_dir/.reference and copy only the new |
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197 # or modified ones into $po_dir. Also update $po_dir/LINGUAS. |
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198 # Note po files that exist locally only are left in $po_dir but will |
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199 # not be included in LINGUAS and hence will not be distributed. |
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200 update_po_files() { |
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201 # Directory containing primary .po files. |
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202 # Overwrite them only when we're sure a .po file is new. |
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203 po_dir=$1 |
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204 domain=$2 |
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205 |
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206 # Mirror *.po files into this dir. |
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207 # Usually contains *.s1 checksum files. |
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208 ref_po_dir="$po_dir/.reference" |
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209 |
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210 test -d $ref_po_dir || mkdir $ref_po_dir || return |
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211 download_po_files $ref_po_dir $domain \ |
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212 && ls "$ref_po_dir"/*.po 2>/dev/null | |
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213 sed 's|.*/||; s|\.po$||' > "$po_dir/LINGUAS" || return |
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214 |
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215 langs=$(cd $ref_po_dir && echo *.po | sed 's/\.po//g') |
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216 test "$langs" = '*' && langs=x |
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217 for po in $langs; do |
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218 case $po in x) continue;; esac |
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219 new_po="$ref_po_dir/$po.po" |
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220 cksum_file="$ref_po_dir/$po.s1" |
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221 if ! test -f "$cksum_file" || |
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222 ! test -f "$po_dir/$po.po" || |
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223 ! $SHA1SUM -c "$cksum_file" < "$new_po" > /dev/null 2>&1; then |
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224 echo "$me: updated $po_dir/$po.po..." |
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225 cp "$new_po" "$po_dir/$po.po" \ |
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226 && $SHA1SUM < "$new_po" > "$cksum_file" || return |
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227 fi |
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228 done |
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229 } |
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230 |
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231 case $SKIP_PO in |
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232 '') |
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233 if test -d po; then |
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234 update_po_files po $package || exit |
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235 fi |
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236 |
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237 if test -d runtime-po; then |
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238 update_po_files runtime-po $package-runtime || exit |
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239 fi;; |
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240 esac |
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241 |
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242 # ----------------------------------------------------------------------------- |
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243 |
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244 bootstrap_post_pull_hook \ |
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245 || die "bootstrap_post_pull_hook failed" |
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246 |
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247 # Don't proceed if there are uninitialized submodules. In particular, |
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248 # autogen.sh will remove dangling links, which might be links into |
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249 # uninitialized submodules. |
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250 # But it's OK if the 'gnulib' submodule is uninitialized, as long as |
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251 # GNULIB_SRCDIR is set. |
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252 if $use_git; then |
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253 # Uninitialized submodules are listed with an initial dash. |
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254 uninitialized=`git submodule | grep '^-' | awk '{ print $2 }'` |
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255 if test -n "$GNULIB_SRCDIR"; then |
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256 uninitialized=`echo "$uninitialized" | grep -v '^gnulib$'` |
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257 fi |
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258 if test -n "$uninitialized"; then |
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259 die "Some git submodules are not initialized: "`echo "$uninitialized" | tr '\n' ',' | sed -e 's|,$|.|'`" Either use option '--no-git', or run 'git submodule update --init' and bootstrap again." |
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260 fi |
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261 fi |
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262 |
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263 echo "$0: done. Now you can run './autogen.sh'." |
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264 |
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265 # ---------------------------------------------------------------------------- |
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266 |
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267 # Local Variables: |
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268 # eval: (add-hook 'before-save-hook 'time-stamp) |
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269 # time-stamp-start: "scriptversion=" |
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270 # time-stamp-format: "%:y-%02m-%02d.%02H" |
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271 # time-stamp-time-zone: "UTC0" |
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272 # time-stamp-end: "; # UTC" |
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273 # End: |
