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dffram: make volare optional #179

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dffram: make volare optional #179

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7 changes: 4 additions & 3 deletions dffram.py
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Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,6 @@
try:
import click
import yaml
import volare
except ImportError:
print(
"You need to install dependencies: pip3 install --user --upgrade --no-cache-dir -r ./requirements.txt"
Expand Down Expand Up @@ -146,7 +145,6 @@ def prep(local_pdk_root):
global pdk_klayout_dir, pdk_magic_dir, pdk_openlane_dir
pdk_root = os.path.abspath(local_pdk_root)
pdk_path = os.path.join(pdk_root, pdk)
volare.enable(pdk_root=local_pdk_root, pdk=pdk_family, version=pdk_version)

pdk_tech_dir = os.path.join(pdk_path, "libs.tech")
pdk_ref_dir = os.path.join(pdk_path, "libs.ref")
Expand Down Expand Up @@ -477,7 +475,7 @@ def openlane_harden(
"-p",
"--pdk-root",
required=False,
default="./pdks",
default=os.getenv('PDK_ROOT', './pdks'),
help="Optionally override the used PDK root",
)
@click.option("-O", "--output-dir", default="./build", help="Output directory.")
Expand Down Expand Up @@ -690,6 +688,9 @@ def flow(
def i(ext=""):
return f"{build_folder}/{design}{ext}"

if not os.getenv('PDK_ROOT'):
import volare
volare.enable(pdk_root=local_pdk_root, pdk=pdk_family, version=pdk_version)
prep(pdk_root)

start = time.time()
Expand Down