From 01686a20050a2ff4e9559a92558682183a9a09ef Mon Sep 17 00:00:00 2001
From: Harald Pretl <harald@pretl.eu>
Date: Thu, 26 Jun 2025 21:21:06 +0200
Subject: [PATCH] Switch from `volare` to `ciel`

---
 .gitignore                 |  2 +-
 Makefile                   | 22 +++++++++++-----------
 docs/source/basic_setup.md |  2 +-
 requirements.txt           |  2 +-
 4 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/.gitignore b/.gitignore
index 648df3b9..a46b5394 100644
--- a/.gitignore
+++ b/.gitignore
@@ -29,4 +29,4 @@ gf180mcuD
 skywater-pdk/
 sky130_fd_bd_sram/
 docker/openram-ubuntu.log
-volare/
+ciel/
diff --git a/Makefile b/Makefile
index db28296e..802ac68d 100644
--- a/Makefile
+++ b/Makefile
@@ -18,11 +18,11 @@ SRAM_LIB_GIT_COMMIT ?= dd64256961317205343a3fd446908b42bafba388
 SKY130_PDK ?= $(PDK_ROOT)/sky130A
 GF180_PDK ?= $(PDK_ROOT)/gf180mcuD
 
-# Volare SKY130 PDK
-SKY130_VOLARE = e8294524e5f67c533c5d0c3afa0bcc5b2a5fa066 # 2022.07.29
+# Ciel SKY130 PDK
+SKY130_CIEL = e8294524e5f67c533c5d0c3afa0bcc5b2a5fa066 # 2022.07.29
 
-# Volare GF180 PDK
-GF180_VOLARE = cd1748bb197f9b7af62a54507de6624e30363943 # 2023.12.04
+# Ciel GF180 PDK
+GF180_CIEL = cd1748bb197f9b7af62a54507de6624e30363943 # 2023.12.04
 
 # Skywater PDK
 SKY130_PDKS_DIR ?= $(PDK_ROOT)/skywater-pdk
@@ -58,7 +58,7 @@ INSTALL_BASE_DIRS := gds_lib mag_lib sp_lib lvs_lib calibre_lvs_lib klayout_lvs_
 INSTALL_BASE := $(OPENRAM_HOME)/../technology/sky130
 INSTALL_DIRS := $(addprefix $(INSTALL_BASE)/,$(INSTALL_BASE_DIRS))
 
-# If conda is installed, we will use volare from there
+# If conda is installed, we will use ciel from there
 CONDA_DIR := $(wildcard $(TOP_DIR)/miniconda)
 
 check-pdk-root:
@@ -102,23 +102,23 @@ sky130-install: $(SRAM_LIB_DIR)
 .PHONY: sky130-install
 
 sky130-pdk: $(SKY130_PDKS_DIR)
-	@echo "Installing SKY130 via volare..."
+	@echo "Installing SKY130 via ciel..."
 ifeq ($(CONDA_DIR),)
-	volare enable --pdk sky130 $(SKY130_VOLARE)
+	ciel enable --pdk sky130 $(SKY130_CIEL)
 else
 	source $(TOP_DIR)/miniconda/bin/activate && \
-		volare enable --pdk sky130 $(SKY130_VOLARE) && \
+		ciel enable --pdk sky130 $(SKY130_CIEL) && \
 		conda deactivate
 endif
 .PHONY: sky130-pdk
 
 gf180mcu-pdk:
-	@echo "Installing GF180 via volare..."
+	@echo "Installing GF180 via ciel..."
 ifeq ($(CONDA_DIR),)
-	volare enable --pdk gf180mcu $(GF180_VOLARE)
+	ciel enable --pdk gf180mcu $(GF180_CIEL)
 else
 	source $(TOP_DIR)/miniconda/bin/activate && \
-		volare enable --pdk gf180mcu $(GF180_VOLARE) && \
+		ciel enable --pdk gf180mcu $(GF180_CIEL) && \
 		conda deactivate
 endif
 .PHONY: gf180mcu-pdk
diff --git a/docs/source/basic_setup.md b/docs/source/basic_setup.md
index 42e3117f..e184754b 100644
--- a/docs/source/basic_setup.md
+++ b/docs/source/basic_setup.md
@@ -122,7 +122,7 @@ cd $HOME/OpenRAM
 make sky130-pdk
 ```
 
-This will use volare to get the PDK.
+This will use ciel to get the PDK.
 
 > **Note**: If you don't have Magic installed, you need to install and activate
 > the conda environment before running this command. You can run:
diff --git a/requirements.txt b/requirements.txt
index 5dd98a90..06ff17c6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,4 +4,4 @@ scipy>=1.3.3
 numpy>=1.17.4
 python-subunit>=1.4.0
 unittest2>=1.1.0
-volare>=0.15.2
+ciel>=2.0.0