首页 \ 问答 \ 如何在不使用ruby的情况下列出init.d脚本的文件(How can I list files for an init.d script without ruby)

如何在不使用ruby的情况下列出init.d脚本的文件(How can I list files for an init.d script without ruby)

我需要将使用ruby的init.d脚本转换为不使用ruby。 我可以使用Perl或Python或其他东西,但我不能使用红宝石。 我的主要问题是搞清楚如何动态地获取目录中的* .jar文件列表,并用':'分隔它们。 剩下的我可以用bash脚本轻松完成。

以下是我正在使用的Ruby代码:

#!/usr/local/bin/ruby

require 'fileutils'

HOME = '/usr/local/myproject'
JAVA_HOME = '/usr/java/jdk'
JARS = Dir.glob(File.join(HOME, 'lib', '*.jar')).join(':')
PID_FILE = '/var/run/myproject.pid'
OUT_FILE = File.join(HOME, "stdout")
ERR_FILE = File.join(HOME, "stderr")

case ARGV.first
when 'start'
  exec "/usr/local/bin/jsvc -home #{JAVA_HOME} -cp #{JARS} -pidfile #{PID_FILE} -DHOME=#{HOME} -user me -outfile #{OUT_FILE} -errfile #{ERR_FILE} mypackage.MyProject"
when 'stop'
  exec "/usr/local/bin/jsvc -home #{JAVA_HOME} -cp #{JARS} -pidfile #{PID_FILE} -stop mypackage.MyProject"
end

I need to convert a init.d script that uses ruby to not use ruby. I can use perl or python or something else, but I can't use ruby. My main problem is figuring out how to dynamically get the list of *.jar files in a directory and separate them with ':'. The rest I could easily do with a bash script.

Here is the Ruby code I'm working with:

#!/usr/local/bin/ruby

require 'fileutils'

HOME = '/usr/local/myproject'
JAVA_HOME = '/usr/java/jdk'
JARS = Dir.glob(File.join(HOME, 'lib', '*.jar')).join(':')
PID_FILE = '/var/run/myproject.pid'
OUT_FILE = File.join(HOME, "stdout")
ERR_FILE = File.join(HOME, "stderr")

case ARGV.first
when 'start'
  exec "/usr/local/bin/jsvc -home #{JAVA_HOME} -cp #{JARS} -pidfile #{PID_FILE} -DHOME=#{HOME} -user me -outfile #{OUT_FILE} -errfile #{ERR_FILE} mypackage.MyProject"
when 'stop'
  exec "/usr/local/bin/jsvc -home #{JAVA_HOME} -cp #{JARS} -pidfile #{PID_FILE} -stop mypackage.MyProject"
end

原文:https://stackoverflow.com/questions/3112367
更新时间:2023-03-30 06:03

最满意答案

如果您采用以下RecyclerView.Adapter实现,您会注意到一些事情。 包含数据的Liststatic这意味着它不会在方向更改时重置。 我们正在向EditText添加一个TextWatcher ,以允许我们在修改它们时更新它们,并且我们通过向视图添加标记来跟踪位置。 请注意,这是我的特殊方法,有很多方法可以解决这个问题。

演示

在此处输入图像描述

适配器

public class SampleAdapter extends RecyclerView.Adapter{
    private static List<String> mEditTextValues = new ArrayList<>();

    public SampleAdapter(){
        //Mocking content for the editText
        for(int i=1;i<=10;i++){
            mEditTextValues.add("I'm editText number "+i);
        }
        notifyDataSetChanged();
    }
    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        return new CustomViewHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.edittext,parent,false));
    }
    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
        CustomViewHolder viewHolder = ((CustomViewHolder)holder);
        viewHolder.mEditText.setTag(position);
        viewHolder.mEditText.setText(mEditTextValues.get(position));
    }
    @Override
    public int getItemCount() {
        return mEditTextValues.size();
    }

    public class CustomViewHolder extends RecyclerView.ViewHolder{
        private EditText mEditText;
        public CustomViewHolder(View itemView) {
            super(itemView);
            mEditText = (EditText)itemView.findViewById(R.id.editText);
            mEditText.addTextChangedListener(new TextWatcher() {
                public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {}
                public void afterTextChanged(Editable editable) {}
                public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
                    if(mEditText.getTag()!=null){
                        mEditTextValues.set((int)mEditText.getTag(),charSequence.toString());
                    }
                }
            });
        }
    }
}

(gif可能看起来像是重置了,因为它处于循环中, 它不是


If you take for example the following RecyclerView.Adapter implementation, you'll notice a few things. The List containing the data is static meaning it will not be reset on orientation changes. We are adding a TextWatcher to the EditText to allow us to update the values when they are modified, and also we are keeping track of the position by adding a tag to the view. Note that this is my particular approach, there are many ways of solving this.

Demo

enter image description here

Adapter

public class SampleAdapter extends RecyclerView.Adapter{
    private static List<String> mEditTextValues = new ArrayList<>();

    public SampleAdapter(){
        //Mocking content for the editText
        for(int i=1;i<=10;i++){
            mEditTextValues.add("I'm editText number "+i);
        }
        notifyDataSetChanged();
    }
    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        return new CustomViewHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.edittext,parent,false));
    }
    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
        CustomViewHolder viewHolder = ((CustomViewHolder)holder);
        viewHolder.mEditText.setTag(position);
        viewHolder.mEditText.setText(mEditTextValues.get(position));
    }
    @Override
    public int getItemCount() {
        return mEditTextValues.size();
    }

    public class CustomViewHolder extends RecyclerView.ViewHolder{
        private EditText mEditText;
        public CustomViewHolder(View itemView) {
            super(itemView);
            mEditText = (EditText)itemView.findViewById(R.id.editText);
            mEditText.addTextChangedListener(new TextWatcher() {
                public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {}
                public void afterTextChanged(Editable editable) {}
                public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
                    if(mEditText.getTag()!=null){
                        mEditTextValues.set((int)mEditText.getTag(),charSequence.toString());
                    }
                }
            });
        }
    }
}

(gif may look like it's being reset, since it's in a loop, it's not)

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