Makefile的配方与此文档重定向 [英] Makefile recipe with a here-document redirection

问题描述

有谁知道如何使用此文档的重定向上的配方？

Does anyone know how to use a here-document redirection on a recipe?

test:
  sh <<EOF
  echo I Need This
  echo To Work
  ls
  EOF

我找不到任何解决方案试图常用的方法反斜杠（基本上与命令在一行结束）。

I can't find any solution trying the usual backslash method (which basically ends with a command in a single line).

理由：

我必须通过另一个命令一组多行的食谱，我要代理（例如，SH，码头工人）。

I have a set of multi-line recipes that I want to proxy through another command (e.g., sh, docker).

onelinerecipe := echo l1
define twolinerecipe :=
echo l1
echo l2
endef
define threelinerecipe :=
echo l1
echo l2
echo l3
endef

# sh as proxy command and proof of concept
proxy := sh

test1:
  $(proxy) <<EOF
  $(onelinerecipe)
  EOF

test2:
  $(proxy) <<EOF
  $(twolinerecipe)
  EOF

test3:
  $(proxy) <<EOF
  $(threelinerecipe)
  EOF

我很想避开解决办法：多行转换成宏单行

The solution I would love to avoid: transform multiline macros into single lines.

define threelinerecipe :=
echo l1;
echo l2;
echo l3
endef

test3:
  $(proxy) <<< "$(strip $(threelinerecipe))"

这工作（我用了gmake 4.0和bash作为化妆的shell），但它需要改变我的食谱和我有很多。
地带删除新行，从宏观，那么一切都写在一行。

This works (I use gmake 4.0 and bash as make's shell) but it requires changing my recipes and I have a lot. Strip removes the newlines, from the macro, then everything is written in a single line.

我的最终目标是：代理：=泊坞窗运行...

推荐答案

使用该行的 .ONESHELL： 某处在您的Makefile将发送的所有配方行到一个shell调用，你会发现你原来的Makefile按预期工作。

Using the line .ONESHELL: somewhere in your Makefile will send all recipe lines to a single shell invocation, you should find your original Makefile works as expected.

这篇关于Makefile的配方与此文档重定向的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！