如何为Snakemake中引入的各smk文件指定专属配置文件？

方法1：主文件加载多配置，通过命名空间传递 #

在主Snakefile中分别加载每个子规则对应的配置文件，将配置作为独立变量传递给子规则使用：

# workflow/Snakefile
# 加载各子规则的专属配置文件
config_0 = configfile("config/config_0.yaml")
config_1 = configfile("config/config_1.yaml")
config_2 = configfile("config/config_2.yaml")

# 引入子规则文件，直接使用已定义的配置变量
include: "rules/Snakefile_0.smk"
include: "rules/Snakefile_1.smk"
include: "rules/Snakefile_2.smk"

子规则文件（如Snakefile_0.smk）中直接调用对应变量：

# workflow/rules/Snakefile_0.smk
rule process_data_0:
    input:
        config_0["raw_data_path"]
    output:
        config_0["processed_data_path"]
    shell:
        "python scripts/process.py {input} {output}"

方法2：子规则文件自主加载专属配置 #

让每个子规则文件独立加载对应的配置文件，增强子模块的独立性：

# workflow/rules/Snakefile_0.smk
# 子规则文件内直接加载专属配置（注意路径相对位置）
config_0 = configfile("../config/config_0.yaml")

rule process_data_0:
    input:
        config_0["raw_data_path"]
    output:
        config_0["processed_data_path"]
    ...

方法3：主配置文件嵌套区分子规则配置 #

将所有子规则的配置整合到一个主配置文件中，用嵌套键区分不同子规则的配置项：

主配置文件config/config.yaml：

snakefile_0:
    raw_data_path: "data/raw/set0.fastq"
    processed_data_path: "data/processed/set0.bam"
snakefile_1:
    raw_data_path: "data/raw/set1.fastq"
    processed_data_path: "data/processed/set1.bam"
snakefile_2:
    raw_data_path: "data/raw/set2.fastq"
    processed_data_path: "data/processed/set2.bam"

主Snakefile加载主配置：

# workflow/Snakefile
configfile("config/config.yaml")

include: "rules/Snakefile_0.smk"
include: "rules/Snakefile_1.smk"
include: "rules/Snakefile_2.smk"

子规则文件调用对应嵌套配置：

# workflow/rules/Snakefile_0.smk
rule process_data_0:
    input:
        config["snakefile_0"]["raw_data_path"]
    output:
        config["snakefile_0"]["processed_data_path"]
    ...

内容的提问来源于stack exchange，提问作者Isin Altinkaya