安裝java運行環境

Loongnix官方倉庫里面的openjdk是1.8.0_212版本, 已經測試通過

$ sudo yum install -y java-latest-openjdk
$ java -version
# openjdk version "1.8.0_212"

下載程序包

官網下載地址:
https://www.jetbrains.com/pycharm/download/other.html

本文撰寫時使用的是Linux2020.2.3版本tar.gz格式壓縮包

解壓程序包并運行

$ tar -zxvf pycharm-community-2020.2.3.tar.gz
$ cd pycharm-community-2020.2.3
$ ./bin/pycharm.sh

手動啟動正常, 沒有報錯

添加快捷方式到xfce4的程序菜單中

$ vim ~/.local/share/applications/jetbrains-pycharm-ce.desktop

編輯內容如下:

[Desktop Entry]
Version=1.0
Type=Application
Name=Pycharm Community Edition
Icon=/home/lpwm/Apps/pycharm-community-2020.2.3/bin/pycharm.png
Exec="/home/lpwm/Apps/pycharm-community-2020.2.3/bin/pycharm.sh" %f
Comment=人生苦短,我用Python
Categories=Development;IDE;
Terminal=false
StartupWMClass=jetbrains-pycharm-ce

解決Terminal無法啟動問題

在PyCharm中打開Terminal面板遇到了錯誤：

查看了下~/.cache/JetBrains/PyCharmCE2020.2/log/idea.log日志

Suppressed: java.io.IOException: Native library (home/lpwm/Apps/pycharm-community-2020.2.3/lib/pty4j-native/linux/x86_64/libpty.so) not found in resource path (/home/lpwm/Apps/pycharm-community-2020.2.3/lib/bootstrap.jar:/home/lpwm/Apps/pycharm-community-2020.2.3/lib/extensions.jar:/home/lpwm/Apps/pycharm-community-2020.2.3/lib/util.jar:/home/lpwm/Apps/pycharm-community-2020.2.3/lib/jdom.jar:/home/lpwm/Apps/pycharm-community-2020.2.3/lib/log4j.jar:/home/lpwm/Apps/pycharm-community-2020.2.3/lib/trove4j.jar:/home/lpwm/Apps/pycharm-community-2020.2.3/lib/jna.jar)

調用lib/pty4j-native/linux/x86_64/libpty.so的時候出現了問題，關鍵是我這是MIPS64架構，看來還得動手解決了，參考stackoverflow上的這個問題進行解決：https://stackoverflow.com/questions/62850986/pycharm-terminal-not-working-on-raspbian-os

主要過程就是從JetBrains官方的git倉庫中克隆pty4j代碼，在本地使用gcc編譯libpty.so動態鏈接文件（類似于Windows 中的DLL文件），最后用編譯的so文件替換之前的x86_64架構適用的文件

$ sudo yum install -y git
$ git clone https://github.com/JetBrains/pty4j.git
$ cd pty4j/native
$ gcc -fPIC -c *.c
$ gcc -shared -o libpty.so *.o
$ rm /home/lpwm/Apps/pycharm-community-2020.2.3/lib/pty4j-native/linux/x86_64/libpty.so
$ cp libpty.so /home/lpwm/Apps/pycharm-community-2020.2.3/lib/pty4j-native/linux/x86_64/

搞定后重啟一下PyCharm，再開Terminal面板就正常了

解決External file changes sync may be slow問題

跟上面的問題類似，PyCharm官方對非x86平臺的支持并不完美，還是需要手工編譯相關的依賴，這里需要手工編譯一個叫fsnotifier的應用，官方文檔：https://confluence.jetbrains.com/display/IDEADEV/Compiling+File+Watcher

按照官方文檔上說的流程進行編譯，結果不出意外的悲劇了，報錯

[lpwm@sugon fix]$ sh make.sh 
*** Compiling platform-specific version (fsnotifier-mips64)...
main.c: 在函數‘report_event'中:
main.c:436:16: 警告：initialization discards ‘const' qualifier from pointer target type
  char* copy = path, *p;
        ^

不過倒是生成了fsnotifier-mips64二進制文件,貌似沒影響吧,繼續后面的操作

$ cp fsnotifier-mips64 ~/Apps/pycharm-community-2020.2.3/bin/

重新啟動PyCharm, 點擊菜單欄中的Help-Edit Custom Properties,提示創建idea.properties配置文件,寫入下面內容

idea.filewatcher.executable.path = fsnotifier-mips64

重啟PyCharm, 歐耶!沒有提示了!

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