scripts/update-nsis-functions.sh

   1 #!/bin/bash
   2 #
   3 # Author:  Enrico Tröger
   4 # License: GPL v2 or later
   5 #
   6 # Updates the `functions` and `variables` entries in data/filetypes.nsis.
   7
   8 set -e
   9
  10 TOKENS_CPP_FILE="/tmp/nsis_tokens.cpp"
  11 TOKENS_CPP_URL="https://raw.githubusercontent.com/kichik/nsis/master/Source/tokens.cpp"
  12 BUILD_CPP_FILE="/tmp/nsis_build.cpp"
  13 BUILD_CPP_URL="https://raw.githubusercontent.com/kichik/nsis/master/Source/build.cpp"
  14 DATA_FILE=data/filedefs/filetypes.nsis
  15
  16 [ -f "${DATA_FILE}" ]
  17
  18 # download tokens.cpp and build.cpp from NSIS
  19 wget --quiet --output-document="${TOKENS_CPP_FILE}" "${TOKENS_CPP_URL}"
  20 wget --quiet --output-document="${BUILD_CPP_FILE}" "${BUILD_CPP_URL}"
  21
  22 normalize() {
  23    # sort, remove line breaks, convert to lower case and remove leading and trailing whitespace
  24    sort | tr '[:upper:][:space:]' '[:lower:] ' | sed 's/^[[:blank:]]*//;s/[[:blank:]]*$//'
  25 }
  26
  27 # extract function names (then sort the result, conver to lowercase and replace new lines by spaces)
  28 functions=$(
  29     sed --silent --regexp-extended 's/^\{TOK_.*,_T\("(.*)"\),[0-9]+,.*$/\1/p' "${TOKENS_CPP_FILE}" | \
  30     normalize
  31 )
  32
  33 # extract variable names (then sort the result, conver to lowercase and replace new lines by spaces)
  34 variables=$(
  35     sed --silent --regexp-extended \
  36         --expression 's/^[ ]*m_ShellConstants.add\(_T\("(.*)"\),.*,.*\);.*$/\1/p' \
  37         --expression 's/^[ ]*m_UserVarNames.add\(_T\("(.*)"\),.*\);.*$/\1/p' "${BUILD_CPP_FILE}" | \
  38     normalize
  39 )
  40
  41 # hardcode a few more, as found in the documentation ("4.2.2 Other Writable Variables")
  42 variables_extra='{nsisdir} 0 1 2 3 4 5 6 7 8 9 r0 r1 r2 r3 r4 r5 r6 r7 r8 r9 \\n \\r \\t $'
  43 variables="${variables_extra} ${variables}"
  44 # prefix each element with a dollar sign
  45 variables="$(echo "$variables" | sed 's/[^ ]*/$&/g')"
  46
  47 rm "${TOKENS_CPP_FILE}" "${BUILD_CPP_FILE}"
  48
  49 sed --expression "s/^functions=.*$/functions=$functions/" \
  50     --expression "s/^variables=.*$/variables=$variables/" \
  51     --in-place "${DATA_FILE}"