scripts/Update-Pkg

   1 #!/usr/bin/env bash
   2 # --- T2-COPYRIGHT-NOTE-BEGIN ---
   3 # T2 SDE: scripts/Update-Pkg
   4 # Copyright (C) 2004 - 2023 The T2 SDE Project
   5 #
   6 # This Copyright note is generated by scripts/Create-CopyPatch,
   7 # more information can be found in the files COPYING and README.
   8 #
   9 # This program is free software; you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License version 2.
  11 # --- T2-COPYRIGHT-NOTE-END ---
  12
  13 # Extract packagename and version number from the script arguments.
  14 pkg="$1"; shift
  15 ver="$1"; shift
  16
  17 # The script also supports the package name and version separated by a '-',
  18 # '_' or '.'. In this case they have to be separated from each other.
  19 if [ -z "$ver" ]; then
  20     ver=${pkg/*-/}
  21     pkg=${pkg%-$ver}
  22     if [ "$ver" == "$pkg" ]; then
  23         ver=${pkg/*_/}
  24         pkg=${pkg%_$ver}
  25     fi
  26     if [ "$ver" == "$pkg" ]; then
  27         pkg=${pkg/.*/}
  28         ver=${ver#$pkg.}
  29     fi
  30     [ "$ver" == "$pkg" ] && unset ver
  31 fi
  32
  33 # Check if both package name and version have been extracted from the
  34 # commandline arguments. If not the script was called with invalid
  35 # arguments, show the usage.
  36 if [ -z "$pkg" -o -z "$ver" ]; then
  37         echo "Usage: $0 pkg ver, pkg-ver, pkg_ver or pkg.ver"
  38         echo ""
  39         echo "Updating a package to a new versions."
  40         echo ""
  41         echo "  pkg     Packagename to be updated"
  42         echo "  ver     New version number for the package"
  43         echo "          ver=refresh makes it just add checksums"
  44         echo ""
  45         echo "For detailed information on how to update packages"
  46         echo "to new versions, please have a look at the online"
  47         echo "T2 documentaion."
  48         exit
  49 fi
  50
  51 # Make sure any diff files from previous runs are removed.
  52 rm -f $$.diff
  53
  54 # Only package names in lowercase are supported. As an additional
  55 # service any package names supplied in capitols will be converted
  56 # to lowercase.
  57 pkg=`echo "$pkg" | tr A-Z a-z`
  58
  59 # Of course we can only update packages we know about.
  60 if [ -d package/*/$pkg ]; then
  61         if [ "$ver" != "refresh" ]; then
  62                 # The package exists so now update the package descriptor
  63                 # for the given package to the new version. Luckily we have
  64                 # a script for that too :-)
  65                 scripts/Create-PkgUpdPatch "$pkg" "$ver" | tee $$.diff
  66                 patch -p1 < $$.diff
  67                 rm -f $$.diff
  68         fi
  69
  70         # Step 2: Use the modified package descriptor to download
  71         # the package. Again, nothing more that calling an existing
  72         # script.
  73         scripts/Download $pkg || exit 1
  74
  75         # Third and final step is updating the checksum for the
  76         # new download.
  77         scripts/Create-CkSumPatch "$pkg" | patch -p0
  78 else
  79         # Oeps, the given package name does not exist.
  80         echo "ERROR: package $pkg doesn't exist"
  81         # As an extra service for the user a list possibilities is
  82         # presented with packages closely matching the given package
  83         # name.
  84         pkg=`echo "$pkg" | tr '\-_.' '***'`
  85         echo `echo package/*/*$pkg*/ | tr ' ' '\n' | grep -v '*' | cut -d'/' -f3`
  86 fi