如何在 ubuntu 19.10 上安装 TortoiseHg

Question

从 Ubuntu 19.04 更新到 Ubuntu 19.10 后，我只是尝试安装 TortoiseHg，我得到了以下信息：

sudo apt install tortoisehg 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package tortoisehg is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'tortoisehg' has no installation candidate

目前是否有任何安装 TortoiseHg 的选项，除了我自己从源代码构建它？

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关于安装 TortoiseHg可能重复的评论：需要更高的 Mercurial 版本- 它不能解决问题。

目前我正在使用 mercurial 版本4.8.2，这是 19.10 中最新可用的版本，而没有添加 mercurial-ppa。

当我尝试添加 mercurial-ppa 时，出现以下错误：

sudo add-apt-repository ppa:mercurial-ppa/releases
 See https://launchpad.net/~mercurial-ppa
 More info: https://launchpad.net/~mercurial-ppa/+archive/ubuntu/releases
Press [ENTER] to continue or Ctrl-c to cancel adding it.

Ign:1 http://ppa.launchpad.net/mercurial-ppa/releases/ubuntu eoan InRelease
Err:2 http://ppa.launchpad.net/mercurial-ppa/releases/ubuntu eoan Release                                                                
  404  Not Found [IP: 91.189.95.83 80]
Hit:3 http://security.ubuntu.com/ubuntu eoan-security InRelease                                                                                                                                        
Hit:4 http://nl.archive.ubuntu.com/ubuntu eoan InRelease                                                                                                                                               
Hit:5 http://nl.archive.ubuntu.com/ubuntu eoan-updates InRelease                                                                                                   
Hit:6 https://repo.skype.com/deb stable InRelease                                                                          
Hit:7 http://nl.archive.ubuntu.com/ubuntu eoan-backports InRelease                                                         
Ign:8 http://dl.google.com/linux/chrome/deb stable InRelease                                         
Ign:9 http://dl.google.com/linux/earth/deb stable InRelease
Hit:10 http://dl.google.com/linux/chrome/deb stable Release
Hit:11 http://dl.google.com/linux/earth/deb stable Release
Hit:12 https://dl.winehq.org/wine-builds/ubuntu eoan InRelease
Reading package lists... Done
E: The repository 'http://ppa.launchpad.net/mercurial-ppa/releases/ubuntu eoan Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

Answer 1

用于基于 Debian 的操作系统的 TortoiseHg 的最新版本是 4.8.1-0.1（根据Debian 搜索结果）。Ubuntu 的存档池中提供了相同的版本（可以通过搜索 Ubuntu Packages * 找到），并且仍然可以在 Eoan Ermine (19.10) 中满足依赖项，无需任何额外工作。

要安装运行：

wget http://ftp.us.debian.org/debian/pool/main/t/tortoisehg/tortoisehg_4.8.1-0.1_all.deb
sudo apt install ./tortoisehg_4.8.1-0.1_all.deb

^{*感谢N0rbert的提醒，包括链接。}