From 56a0770ecb5faad915b75dc1184ce8c9f69b9ad2 Mon Sep 17 00:00:00 2001
From: raj_mathe <raj.dahya@math.uni-leipzig.de>
Date: Sun, 9 May 2021 20:15:23 +0200
Subject: [PATCH] master > master: codego -> antlr.jar nicht synchronisieren

---
 codego/.gitignore |  1 -
 codego/run.sh     | 24 ++++++++++++++++++++----
 2 files changed, 20 insertions(+), 5 deletions(-)

diff --git a/codego/.gitignore b/codego/.gitignore
index 38df4b3..b6b0712 100644
--- a/codego/.gitignore
+++ b/codego/.gitignore
@@ -20,6 +20,5 @@
 !/go.sum
 
 ## Für Erzeugung von Grammatiken:
-!/grammars/antlr.jar
 !/grammars/README.md
 !/grammars/*.g4
diff --git a/codego/run.sh b/codego/run.sh
index 5247e2f..44ac650 100755
--- a/codego/run.sh
+++ b/codego/run.sh
@@ -8,10 +8,25 @@
 # HILFSMETHODEN
 ################################
 
+export NULL="/dev/null"
+export ANTLR_VESION="4.7";
+
 function call_go() {
     go $@;
 }
 
+function get_antlr() {
+    local url="http://www.antlr.org/download/antlr-${ANTLR_VESION}-complete.jar";
+    ( wget $url ) >> $NULL 2> $NULL || (echo -e "[\033[91;1mERROR\033[0m] konnte \033[1;2mwget $url\033[0m nicht ausführen." && exit 1);
+    while read fname; do
+        if ! [ "$fname" == "" ] && [ -f "$fname" ]; then
+            echo -e "\033[92;1mANTLR\033[1m-${ANTLR_VESION}\033[0m wurde heruntergeladen und in \033[1mcodego/grammars\033[0m kopiert.";
+            mv "$fname" "grammars/antlr.jar"
+            break
+        fi
+    done <<< "$( ls antlr*.jar )"
+}
+
 function check_requirements() {
     [ -f "go.sum" ] && rm "go.sum";
     call_go get "$( cat requirements )";
@@ -20,14 +35,15 @@ function check_requirements() {
 function precompile_grammars() {
     local fname;
     local name;
-    pushd grammars >> /dev/null;
+    ! [ -f "grammars/antlr.jar" ] && get_antlr; # <- lädt antl.jar herunter, wenn fehlt
+    pushd grammars >> $NULL;
         while read fname; do
             ( [ "$fname" == "" ] || ! [ -f "$fname" ] ) && continue;
             name="$( echo "$fname" | sed -E "s/^(.*)\.g4$/\1/g" )";
-            echo -e "\033[92;1mANTLR4\033[0m präkompiliert Grammatik \033[1m${fname}\033[0m";
+            echo -e "\033[92;1mANTLR\033[0m präkompiliert Grammatik \033[1m${fname}\033[0m";
             java -jar antlr.jar -Dlanguage=Go "$fname" -o "$name";
-        done <<< "$( ls *.g4 2> /dev/null )"
-    popd >> /dev/null
+        done <<< "$( ls *.g4 2> $NULL )"
+    popd >> $NULL;
 }
 
 function compile_programme() {