ngspice builds

Author: danchitnis

Docker/Dockerfile

@@ -1,5 +1,8 @@
 FROM ubuntu:latest
 
+# Default version is master
+ENV VERSION=master  
+
 RUN apt-get update && apt-get install -y \
   build-essential \
   cmake \
@@ -30,7 +33,8 @@ RUN chmod +x /run.sh
 ENTRYPOINT ["/run.sh"]
 
 ## run this command in WSL2:
-## docker run -it -v $(realpath .):/mnt ngspice:emcc
+## docker run -it -e VERSION=next -v $(realpath .):/mnt ngspice:emcc
+
 
 
 

Docker/help.txt

@@ -1,4 +1,4 @@
 docker build --no-cache -t eecircuit .
 # mkdir build
-docker run -t -v $(realpath .):/mnt eecircuit
+docker run -it -e VERSION=next -v $(realpath .):/mnt ngspice:emcc
 node ./inject.js

Docker/run.sh

@@ -1,6 +1,8 @@
 #!/bin/bash
 echo Entryponit script is Running...
 
+echo Installing emscripten...
+
 NGSPICE_HOME="https://github.com/danchitnis/ngspice-sf-mirror"
 #NGSPICE_HOME="https://git.code.sf.net/p/ngspice/ngspice"
 
@@ -13,15 +15,65 @@ cd emsdk
 ./emsdk activate latest
 source ./emsdk_env.sh
 
+echo emscripten is installed
+
+############################################
+
 echo -e "\n"
-echo -e "installing ngspice...\n"
+echo cloning ngspice repository...
 
 cd /opt
-
 git clone $NGSPICE_HOME ngspice-ngspice
-
 cd ngspice-ngspice
 
+############################################
+
+echo -e "\n"
+echo determining the latest release version and branch...
+
+# Step 1: Find the latest tag with the version format "ngspice-X.Y"
+latest_tag=$(git tag | grep -E '^ngspice-[0-9]+\.[0-9]+$' | sort -V | tail -n 1)
+if [ -z "$latest_tag" ]; then
+  echo "No ngspice tags found."
+  exit 1
+fi
+latest_version=${latest_tag#ngspice-}  # Extract version number (e.g., 44.2)
+echo "Latest tag: $latest_tag (version $latest_version)"
+
+# Step 2: Find the branch with a higher version than the latest tag.
+# We assume branch names are in the form "pre-master-X" or "pre-master-X.Y"
+# Extract the version number, sort them, and then pick the first branch with a version > latest_version.
+branch_version=$(git branch -r | \
+  grep -Eo 'pre-master-[0-9]+(\.[0-9]+)?' | \
+  sed -E 's/.*pre-master-([0-9]+(\.[0-9]+)?)/\1/' | \
+  sort -V | \
+  awk -v latest="$latest_version" '{ if ($1+0 > latest+0) { print $1; exit } }')
+
+if [ -n "$branch_version" ]; then
+  echo "Branch with higher version: pre-master-$branch_version"
+else
+  echo "No branch found with a version higher than $latest_version"
+  exit 1
+fi
+
+############################################
+
+echo -e "\n"
+echo "Running build requested is: $VERSION"
+
+if [ "$VERSION" == "next" ]; then
+  echo "Checking out the branch pre-master-$branch_version"
+  git checkout pre-master-$branch_version
+else
+  echo "Checking out the master branch for version $latest_version"
+fi
+
+############################################
+
+echo -e "\n"
+echo "Applying patches..."
+
+
 #https://www.cyberciti.biz/faq/how-to-use-sed-to-find-and-replace-text-in-files-in-linux-unix-shell/
 #https://sourceforge.net/p/ngspice/patches/99/
 sed -i 's/-Wno-unused-but-set-variable/-Wno-unused-const-variable/g' ./configure.ac
@@ -30,6 +82,11 @@ sed -i 's|#include "ngspice/ngspice.h"|#include <emscripten.h>\n\n#include "ngsp
 sed -i 's|freewl = wlist = getcommand(string);|emscripten_sleep(100);\n\n\t\tfreewl = wlist = getcommand(string);|g' ./src/frontend/control.c
 
 
+############################################
+
+echo -e "\n"
+echo "Building ngspice..."
+
 ./autogen.sh
 mkdir release
 cd release
@@ -46,13 +103,19 @@ emmake make -j
 
 wait
 
+############################################
 
+echo -e "\n"
+echo "Copying the build artifacts..."
 
 cd src
 mv spice.mjs spice.js
 mkdir -p /mnt/build
 \cp spice.js spice.wasm /mnt/build
 
+echo "Build artifacts are copied to /mnt/build"
+
+############################################
 
 echo -e "\n"
 echo -e "This script is ended\n"