kc3-lang/SDL/build-scripts/updaterev.sh

• Show log

  Commit

• Hash : 2dc788cb
  Author :
  Date : 2022-10-20T19:54:24
  

  build: Expand version info in SDL_REVISION and SDL_GetRevision()
  
  Instead of using a URL and git sha1, this uses `git describe` to
  describe the version relative to the nearest previous git tag, which
  gives a better indication of whether this is a release, a prerelease,
  a slightly patched prerelease, or a long way after the last release
  during active development.
  
  This serves two purposes: it makes those APIs more informative, and it
  also puts this information into the binary in a form that is easy to
  screen-scrape using strings(1). For instance, if the bundled version of
  SDL in a game has this, we can see at a glance what version it is.
  
  It's also shorter than using the web address of the origin git
  repository and the full git commit sha1.
  
  Also write the computed version into a file ./VERSION in `make dist`
  tarballs, so that when we build from a tarball on a system that doesn't
  have git available, we still get the version details.
  
  For the Perforce code path in showrev.sh, output the version number
  followed by the Perforce revision, in a format reminiscent of
  `git describe` (with p instead of g to indicate Perforce).
  
  For the code path with no VCS available at all, put a suffix on the
  version number to indicate that this is just a guess (we can't know
  whether this SDL version is actually a git snapshot or has been
  patched locally or similar).
  
  Resolves: https://github.com/libsdl-org/SDL/issues/6418
  Signed-off-by: Simon McVittie <smcv@collabora.com>
  

Download

• build-scripts/updaterev.sh

• #!/bin/sh
  #
  # Generate a header file with the current source revision
  
  outdir=`pwd`
  cd `dirname $0`
  srcdir=..
  header=$outdir/include/SDL_revision.h
  dist=
  vendor=
  
  while [ "$#" -gt 0 ]; do
      case "$1" in
          (--dist)
              dist=yes
              shift
              ;;
          (--vendor)
              vendor="$2"
              shift 2
              ;;
          (*)
              echo "$0: Unknown option: $1" >&2
              exit 2
              ;;
      esac
  done
  
  rev=`sh showrev.sh 2>/dev/null`
  if [ "$rev" != "" ]; then
      if [ -n "$dist" ]; then
          echo "$rev" > "$outdir/VERSION"
      fi
      echo "/* Generated by updaterev.sh, do not edit */" >"$header.new"
      if [ -n "$vendor" ]; then
          echo "#define SDL_VENDOR_INFO \"$vendor\"" >>"$header.new"
      fi
      echo "#ifdef SDL_VENDOR_INFO" >>"$header.new"
      echo "#define SDL_REVISION \"SDL-$rev (\" SDL_VENDOR_INFO \")\"" >>"$header.new"
      echo "#else" >>"$header.new"
      echo "#define SDL_REVISION \"SDL-$rev\"" >>"$header.new"
      echo "#endif" >>"$header.new"
      echo "#define SDL_REVISION_NUMBER 0" >>"$header.new"
      if diff $header $header.new >/dev/null 2>&1; then
          rm "$header.new"
      else
          mv "$header.new" "$header"
      fi
  fi
  

Download