小编ℝap*_*ink的帖子

使用git-subtree,运行时计算的差异git subtree split数量随着时间的推移而增加,达到可以进行拆分的值需要很长时间.

修复它的一种方法是git rm路径,提交它然后再git subtree add返回.

是否有更简单/更简洁的方法来重置子树？

是否可以使用fmt.Sprintf()相同的值替换格式化字符串中的所有变量？

就像是:

val := "foo"
s := fmt.Sprintf("%v in %v is %v", val)

哪会回来

"foo in foo is foo"

我正在使用git标签在我的go程序中注入版本,例如Makefile:

VERSION = $(shell git describe --always --dirty)

github_pki: main.go
    CGO_ENABLED=0 GOOS=linux \
      go build -a \
          -ldflags="-X main.version=$(VERSION)" \
        -installsuffix cgo -o $@ $<

在哪里version定义main.go为:

var version = "undefined"

这很好用make,但不是在使用go get或时go build.有没有办法在ldflags不使用外部构建系统(即使用go build/ go get)的情况下完成这项工作？

在python中(在Linux系统上),我正在启动一个使用os.system()和检索返回代码的命令.如果返回代码不同于0,我想使用相同的返回代码退出程序.所以我写道:

ret = os.system(cmd)
if ret != 0:
   print "exit with status %s" % ret
   sys.exit(ret)

当返回代码低于256时,它工作正常,但是当它大于255时,使用的退出代码是0.如何使sys.exit()接受大于255的代码？

编辑:限制实际为255

实际上,ret变量接收256,但sys.exit()未能使用它,因此程序返回0.当我cmd手动启动时,我看到它返回1而不是256.

我正在使用博主制作播客.它工作得很好,但我发现自己复制/粘贴很多东西,当两个或三个变量和一个模板能很好地完成工作时.

大多数帖子看起来像这样:

Étude de Exode 6.14-7.13.
<br />
<audio controls>
  <source src="file.mp3" type="audio/mpeg">
  <embed height="50" width="100" src="file.mp3">
</audio>

<biblia:bible layout="minimal" resource="lsg" width="400" height="600" historyButtons="false" navigationBox="false" resourcePicker="false" shareButton="false" textSizeButton="false" startingReference="Ex6.14-7.13"></biblia:bible>

三件事改变的地方:

• 顶部的文字(示例中的"É​​tudedeExode 6.14-7.13.")
• 声音文件的链接(实际上data:post.link,但我似乎无法在expr:src那里使用)
• 传递给biblia:bible标签的引用(这里是'Ex6.14-7.13')

有没有办法可以为我的博客文章使用模板和变量,而不是每次都手动复制和更改内容？

我正在尝试使用bibleontology和dbpedia语义数据库的请求:

PREFIX bibleontology: <http://bibleontology.com/resource/>
PREFIX dbo: <http://dbpedia.org/ontology/>

SELECT ?art ?abstract WHERE { 
bibleontology:Ezra owl:sameAs ?art .
?art dbo:abstract ?abstract .
}

这种请求既不适用于bibleontology SPARQL端点,也不适用于dbpedia SPARQL端点.请求的各个部分在每个SPARQL端点上都能正常工作.

是否可以通过这种方式加入数据库？

Travis CI使用RVM提供Ruby,但它似乎不包含标题:

$ find /home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/zlib.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/dl.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/syck.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/socket.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/dbm.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/pty.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/strscan.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/io
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/io/console.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/io/wait.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/io/nonblock.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/iconv.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/iso_8859_14.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/gb2312.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/iso_8859_16.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/windows_1251.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/euc_jp.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/iso_8859_4.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/iso_8859_1.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/trans
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/trans/japanese_euc.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/trans/emoji_sjis_softbank.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/trans/single_byte.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/trans/emoji_sjis_docomo.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/trans/utf8_mac.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/trans/gbk.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/trans/emoji.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/trans/japanese_sjis.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/trans/big5.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/trans/transdb.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/trans/japanese.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/trans/gb18030.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/trans/utf_16_32.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/trans/korean.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/trans/escape.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/trans/emoji_iso2022_kddi.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/trans/chinese.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/trans/iso2022.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/trans/emoji_sjis_kddi.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/encdb.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/utf_16le.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/gbk.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/iso_8859_8.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/euc_tw.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/koi8_r.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/iso_8859_9.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/utf_32le.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/big5.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/shift_jis.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/cp949.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/gb18030.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/koi8_u.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/iso_8859_7.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/utf_32be.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/euc_kr.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/iso_8859_15.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/iso_8859_10.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/iso_8859_3.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/utf_16be.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/emacs_mule.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/iso_8859_2.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/iso_8859_6.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/iso_8859_13.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/iso_8859_5.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/enc/iso_8859_11.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/json
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/json/ext
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/json/ext/generator.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/json/ext/parser.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/curses.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/fiber.so
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/racc
/home/vagrant/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/i686-linux/racc/cparse.so …

如何定位文件中第n个字符所在的行？

例如，我如何知道字符 5347 位于给定文件中的位置？

我有一个电子书,其中包含如下代码:

Some text (<a id="aref"></a>Some more text) that continues

我需要锚来引用索引中文本的这一部分.但是,标签允许换行,所以我经常最后会换行(.

有没有办法防止这些换行符(在(不是一个选项之前放置锚点).

我在 consul-template 中使用以下模板：

{{ range services }}
  {{ $server_name := .Name | replaceAll "_" "." }}
  {{ range .Tags }}
    {{ if . | regexMatch "server_name=" }}
      # found matching server_name in {{ . }}
      {{ $server_name := . | regexReplaceAll ".*=" "" }}
    {{ end }}
  {{ end }}
  # server_name = {{ $server_name }}
        acl host_{{ .Name }} hdr(host) -i {{ $server_name }}
        use_backend {{ .Name }}_backend if host_{{ .Name }}
{{ end }}

产生

  # found matching …

我正在尝试检查文件中是否有Python中的setuid位.

stat doc提到了一个S_ISUID函数,但它只适用于os.chmod(),而不是实际读取setuid位.它也列出了S_IMODE,但我不知道如何解释它.

如何轻松检查文件是否设置为setuid根位？

我有一个类似于Emulate github service hooks wih curl 的需求，但我也在我的 webhook 中使用了一个秘密，但它无法正常工作。

这是我作为接收后挂钩所做的：

#!/bin/bash

while read oldrev newrev refname; do
  tmpfile=$(mktemp --suffix=.json)

  cat << EOF > $tmpfile
  {
    "ref": "${refname}"
  }
EOF

  sig=$(cat "${tmpfile}" | openssl dgst -sha1 -hmac "${WEBHOOK_SECRET}" | awk '{print "X-Hub-Signature: sha1="$2}')

  curl -X POST -H "Content-Type: application/json" -H "${sig}" --data-urlencode "payload@${tmpfile}" http://webhook:9000/hooks/r10k

  rm -f "${tmpfile}"
done

webhook（与 github 一起使用）抱怨签名错误。

我究竟做错了什么？