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检查Makefile中现有的conda环境

conda anaconda makefile python

Lukasz Tracewski · 技术社区 · 5 年前

我正在Makefile中创建conda环境。但是,如果这个环境已经创建,我想跳过这一步。如何检查以下各项:

此环境是否已激活?可选。我认为,如果env被激活两次不会有什么伤害。

CONDA_ENV_NAME := myname

ifeq (,$(shell which conda))
    HAS_CONDA=False
else
    HAS_CONDA=True
    CONDA_ACTIVATE=source $$(conda info --base)/etc/profile.d/conda.sh ; conda activate ; conda activate
endif

environment:
ifeq (True,$(HAS_CONDA))
    @echo ">>> Detected conda, creating conda environment."
    ## Here I'd like to check if this environment already exists
    conda env create -f environment.yml -n $(CONDA_ENV_NAME)
    ## ... and if the env should be activated (optional)
    $(CONDA_ACTIVATE) $(CONDA_ENV_NAME)
else
    @echo ">>> Install conda first."
endif

0 回复 | 直到 5 年前

Lukasz Tracewski 5 年前

我用以下方法解决了这个问题:

ifeq (,$(shell which conda))
    HAS_CONDA=False
else
    HAS_CONDA=True
    ENV_DIR=$(shell conda info --base)
    MY_ENV_DIR=$(ENV_DIR)/envs/$(CONDA_ENV_NAME)
    CONDA_ACTIVATE=source $$(conda info --base)/etc/profile.d/conda.sh ; conda activate ; conda activate
endif

environment:
ifeq (True,$(HAS_CONDA))
ifneq ("$(wildcard $(MY_ENV_DIR))","") # check if the directory is there
    @echo ">>> Found $(CONDA_ENV_NAME) environment in $(MY_ENV_DIR). Skipping installation..."
else
    @echo ">>> Detected conda, but $(CONDA_ENV_NAME) is missing in $(ENV_DIR). Installing ..."
    conda env create -f environment.yml -n $(CONDA_ENV_NAME)
endif
else
    @echo ">>> Install conda first."
    exit
endif

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