Codefresh中Shell for循环语法错误排查求助

问题1：数组定义触发/bin/sh: syntax error: bad substitution #

错误代码 #

steps:
  arti_lib_deploy:
    stage: build image
    type: freestyle
    title: "Deploy Libs to Artifactory"
    image: 'hub.artifactory.gcp.xxxx/curlimages/curl:latest'
    commands:
      - LIB_FOLDERS=["lib1","lib2"]
      - >
        for LIB_FOLDER in "${LIB_FOLDERS[@]}"; do
         echo "FolderName- ${LIB_FOLDER}"
         curl -X GET -kv https://xxxx.service.test/entitlements/effPermissions?permissionId= "${LIB_FOLDER}"
        done

错误日志 #

Executing command: LIB_FOLDERS=["lib1","lib2"]
[2023-08-06T10:54:14.700Z] ------------------------------
Executing command: for LIB_FOLDER in "${LIB_FOLDERS[@]}"; do
echo "FolderName-${LIB_FOLDER }"
done

[2023-08-06T10:54:14.701Z] /bin/sh: syntax error: bad substitution
...

原因 #

1. Codefresh Freestyle步骤默认使用/bin/sh执行命令，而sh不支持Bash专属的数组展开语法${LIB_FOLDERS[@]}。
2. 数组定义写法不符合规范，正确的Bash数组定义应为LIB_FOLDERS=("lib1" "lib2")（元素间用空格分隔，无逗号）。

问题2：空格分隔字符串触发/bin/sh: syntax error: unexpected end of file (expecting "done") #

错误代码 #

commands:
   - LIB_FOLDERS="lib1 lib2"
   - for LIB_FOLDER in $LIB_FOLDERS;
     do
      echo "FolderName- $LIB_FOLDER"
     done

错误日志 #

Executing command: LIB_FOLDERS="lib1 lib2"
------------------------------
/bin/sh: syntax error: unexpected end of file (expecting "done")
...

原因 #

Codefresh的commands列表中每一项都是独立执行的命令。拆分后的for循环第一行for LIB_FOLDER in $LIB_FOLDERS;会被sh判定为不完整命令，后续的do和done属于单独命令行，无法形成闭合的循环结构，因此报错。

修复方案 #

方案1：使用sh兼容的单命令循环（推荐） #

将变量定义和循环逻辑合并为一个完整的Shell命令，用>保持格式可读性：

steps:
  arti_lib_deploy:
    stage: build image
    type: freestyle
    title: "Deploy Libs to Artifactory"
    image: 'hub.artifactory.gcp.xxxx/curlimages/curl:latest'
    commands:
      - >
        LIB_FOLDERS="lib1 lib2" &&
        for LIB_FOLDER in $LIB_FOLDERS; do
          echo "FolderName- ${LIB_FOLDER}"
          curl -X GET -kv "https://xxxx.service.test/entitlements/effPermissions?permissionId=${LIB_FOLDER}"
        done

注意：curl的URL需将变量嵌入引号内，避免空格或特殊字符引发参数拆分问题。

方案2：指定使用Bash执行 #

若需使用Bash数组特性，可通过bash -c包裹脚本内容：

steps:
  arti_lib_deploy:
    stage: build image
    type: freestyle
    title: "Deploy Libs to Artifactory"
    image: 'hub.artifactory.gcp.xxxx/curlimages/curl:latest'
    commands:
      - >
        bash -c '
          LIB_FOLDERS=("lib1" "lib2")
          for LIB_FOLDER in "${LIB_FOLDERS[@]}"; do
            echo "FolderName- ${LIB_FOLDER}"
            curl -X GET -kv "https://xxxx.service.test/entitlements/effPermissions?permissionId=${LIB_FOLDER}"
          done
        '

注意：使用bash -c时，内部脚本需用单引号包裹，避免YAML与Shell的变量解析冲突。

内容的提问来源于stack exchange，提问作者Shabar