1*4882a593Smuzhiyun#!/usr/bin/env bash 2*4882a593Smuzhiyun 3*4882a593Smuzhiyun# This script is used to generate a gconv-modules file that takes into 4*4882a593Smuzhiyun# account only the gconv modules installed by Buildroot. It receives 5*4882a593Smuzhiyun# on its standard input the original complete gconv-modules file from 6*4882a593Smuzhiyun# the toolchain, and as arguments the list of gconv modules that were 7*4882a593Smuzhiyun# actually installed, and writes on its standard output the new 8*4882a593Smuzhiyun# gconv-modules file. 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun# The format of gconv-modules is precisely documented in the 11*4882a593Smuzhiyun# file itself. It consists of two different directives: 12*4882a593Smuzhiyun# module FROMSET TOSET FILENAME COST 13*4882a593Smuzhiyun# alias ALIAS REALNAME 14*4882a593Smuzhiyun# and that's what this script parses and generates. 15*4882a593Smuzhiyun# 16*4882a593Smuzhiyun# There are two kinds of 'module' directives: 17*4882a593Smuzhiyun# - the first defines conversion of a charset to/from INTERNAL representation 18*4882a593Smuzhiyun# - the second defines conversion of a charset to/from another charset 19*4882a593Smuzhiyun# we handle each with slightly different code, since the second never has 20*4882a593Smuzhiyun# associated aliases. 21*4882a593Smuzhiyun 22*4882a593Smuzhiyungawk -v files="${1}" ' 23*4882a593Smuzhiyun$1 == "alias" { 24*4882a593Smuzhiyun aliases[$3] = aliases[$3] " " $2; 25*4882a593Smuzhiyun} 26*4882a593Smuzhiyun$1 == "module" && $2 != "INTERNAL" && $3 == "INTERNAL" { 27*4882a593Smuzhiyun file2internals[$4] = file2internals[$4] " " $2; 28*4882a593Smuzhiyun mod2cost[$2] = $5; 29*4882a593Smuzhiyun} 30*4882a593Smuzhiyun$1 == "module" && $2 != "INTERNAL" && $3 != "INTERNAL" { 31*4882a593Smuzhiyun file2cset[$4] = file2cset[$4] " " $2 ":" $3; 32*4882a593Smuzhiyun mod2cost[$2] = $5; 33*4882a593Smuzhiyun} 34*4882a593Smuzhiyun 35*4882a593SmuzhiyunEND { 36*4882a593Smuzhiyun nb_files = split(files, all_files); 37*4882a593Smuzhiyun for(f = 1; f <= nb_files; f++) { 38*4882a593Smuzhiyun file = all_files[f]; 39*4882a593Smuzhiyun printf("# Modules and aliases for: %s\n", file); 40*4882a593Smuzhiyun nb_mods = split(file2internals[file], mods); 41*4882a593Smuzhiyun for(i = 1; i <= nb_mods; i++) { 42*4882a593Smuzhiyun nb_aliases = split(aliases[mods[i]], mod_aliases); 43*4882a593Smuzhiyun for(j = 1; j <= nb_aliases; j++) { 44*4882a593Smuzhiyun printf("alias\t%s\t%s\n", mod_aliases[j], mods[i]); 45*4882a593Smuzhiyun } 46*4882a593Smuzhiyun printf("module\t%s\t%s\t%s\t%d\n", mods[i], "INTERNAL", file, mod2cost[mods[i]]); 47*4882a593Smuzhiyun printf("module\t%s\t%s\t%s\t%d\n", "INTERNAL", mods[i], file, mod2cost[mods[i]]); 48*4882a593Smuzhiyun printf("\n" ); 49*4882a593Smuzhiyun } 50*4882a593Smuzhiyun printf("%s", nb_mods != 0 ? "\n" : ""); 51*4882a593Smuzhiyun nb_csets = split(file2cset[file], csets); 52*4882a593Smuzhiyun for(i = 1; i <= nb_csets; i++) { 53*4882a593Smuzhiyun split(csets[i], cs, ":"); 54*4882a593Smuzhiyun printf("module\t%s\t%s\t%s\t%d\n", cs[1], cs[2], file, mod2cost[cs[1]]); 55*4882a593Smuzhiyun } 56*4882a593Smuzhiyun printf("%s", nb_csets != 0 ? "\n\n" : ""); 57*4882a593Smuzhiyun } 58*4882a593Smuzhiyun} 59*4882a593Smuzhiyun' 60