解决警告“..LF will be replaced by CRLF the next time Git touches it“

在windows下执行git add . 时出现很多类似如下的警告

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warning: in the working copy of 'Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_ll_pka.c', LF will be replaced by CRLF the next time Git touches it
warning: in the working copy of 'Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_ll_pwr.c', LF will be replaced by CRLF the next time Git touches it
warning: in the working copy of 'Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_ll_rcc.c', LF will be replaced by CRLF the next time Git touches it
warning: in the working copy of 'Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_ll_rng.c', LF will be replaced by CRLF the next time Git touches it
warning: in the working copy of 'Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_ll_rtc.c', LF will be replaced by CRLF the next time Git touches it
warning: in the working copy of 'Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_ll_sdmmc.c', LF will be replaced by CRLF the next time Git touches it
warning: in the working copy of 'Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_ll_spi.c', LF will be replaced by CRLF the next time Git touches it
warning: in the working copy of 'Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_ll_swpmi.c', LF will be replaced by CRLF the next time Git touches it
warning: in the working copy of 'Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_ll_tim.c', LF will be replaced by CRLF the next time Git touches it
warning: in the working copy of 'Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_ll_usart.c', LF will be replaced by CRLF the next time Git touches it
warning: in the working copy of 'Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_ll_usb.c', LF will be replaced by CRLF the next time Git touches it
warning: in the working copy of 'Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_ll_utils.c', LF will be replaced by CRLF the next time Git touches it

警告含义是当前工作区里的文件都是"LF"结尾, 但现在Git配置的是core.autocrlf = true

所以下次GIt检出或者重写这些文件时, 会自动把LF转换成CRLF

然后git出现大量的提醒, 就是将来会执行这些转换.

为了不影响代码, 进行如下配置

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git config --global core.autocrlf false
git config --global core.safecrlf warn

然后统一项目使用 LF 行尾

在项目根目录执行

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git rm --cached -r . # 清空index
git reset --hard  # 重新checkout所有文件

然后重新执行

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git status
git add .

warning会全部消失

另外一种方式就是在项目根目录建立.gitattributes文件, 在其中添加

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* text=auto eol=lf