Question

我有一个 Make 文件, 如果它没有在最后一小时发生, 就可以执行任务。它是这样做的:


HOUR_FROM_NOW = $(shell perl -e  ($$s,$$m,$$h,$$d,$$M)=localtime(time()+3600); printf("%02d%02d%02d%02d
",$$M+1,$$d,$$h,$$m); )
NOW_FILE      = $(shell mkdir -p .make; touch .make/now; echo .make/now )

.PHONY: externals
externals: $(PROJECTS:%=.make/proj_%)
.make/proj_%: $(NOW_FILE)
     $(MAKE) -s $(*F)
     touch -t $(HOUR_FROM_NOW) $@

.PHONY: $(PROJECTS)
$(PROJECTS): 
     # do stuff, specifically, clone git-repo if not exists, else pull latest

那部分的功过功过功,我只得听到警告:

make: Warning: File `.make/proj  has modification time 3.5e+03 s in the future
make: Nothing to be done for `externals .
make: warning:  Clock skew detected.  Your build may be incomplete.

有人知道如何制止这些警告吗?

Answer 1

我所碰到的大多数触摸版本都可以做一些约会时间数学, 从而可以通过 < code>- date 选项直接设定文件的时间戳。

并且指定给 :\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\"\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\可以\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\


HOUR_AGO := .make/hour_ago
__UGLY := $(shell mkdir -p .make && touch --date= 1hour ago  $(HOUR_AGO))
# The preceding line will be executed once

.make/proj_%: .make/hour_ago | .make
    $(MAKE) -s $(*F)
    @touch $@

.make:
    mkdir -p $@

我使用非常相似的东西 定期刷新登录标记。
如果不是因为戴夫的回答 就不会想到它了

创建该目录的方法是指定该目录为",http://www.gnu.org/ software/ make/manual/make.html#prerequisite-Types" rel=“nofollown noreferrer” >单序-prequisite

Answer 2

我怀疑+3600是错的如果你删除它会怎么样?

Answer 3

我想和想, 然后愚蠢的显而易见的解决方案打我...

我使用实时时间, 与小时比较, 而不是设置未来 HOUR_ FROM_ NOW的时间戳...

HOUR_AGO      = $(shell perl -e  ($$s,$$m,$$h,$$d,$$M)=localtime(time()-3600); printf("%02d%02d%02d%02d
",$$M+1,$$d,$$h,$$m); )
HOUR_AGO_FILE      = $(shell mkdir -p .make; touch -t $(HOUR_AGO) .make/hour_ago; echo .make/hour_ago )

.PHONY: externals
externals: $(PROJECTS:%=.make/proj_%)
.make/proj_%: $(HOUR_AGO_FILE)
     $(MAKE) -s $(*F)
     @touch $@

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