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97 lines
3.4 KiB
Markdown
97 lines
3.4 KiB
Markdown
PID Cat REPL
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============
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A fork of [JakeWharton/pidcat][5], which is itself an update to Jeff Sharkey's
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excellent [logcat color script][1]. Both filter `adb logcat` down to the log
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entries for a specific application package; this fork adds an interactive,
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full-screen filter UI on top, turning `pidcat` into more of a REPL than a
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one-shot stream.
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During application development you often want to only display log messages
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coming from your app. Unfortunately, because the process ID changes every time
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you deploy to the phone it becomes a challenge to grep for the right thing.
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This script solves that problem by filtering by application package. Supply the
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target package as the sole argument to the python script and enjoy a more
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convenient development process.
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pidcat com.oprah.bees.android
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If you just want the original, non-interactive `pidcat`, use the upstream
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[JakeWharton/pidcat][5] project or pass `--plain` here, see [Interactive
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mode](#interactive-mode) below.
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Here is an example of the output when running for the Google Plus app:
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Interactive mode
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-----------------
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When both stdin and stdout are a terminal, `pidcat` opens a full-screen filter
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UI instead of streaming: logs render above a bottom prompt line, and whatever
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you type live-filters the scrollback to lines containing every typed word,
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case-insensitively.
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* `Backspace` edits the query, `Ctrl-U` clears it.
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* `Ctrl-L` forces a redraw; the view also tracks terminal resizes.
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* `Ctrl-C` or `Ctrl-D` quits and restores your scrollback.
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Pass `--plain` to get the original streaming output instead, e.g. for
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`pidcat --plain com.oprah.bees.android | grep Foo`. Piped input or output
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(`adb logcat | pidcat com.oprah.bees.android`, `pidcat ... | less`) always
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uses plain streaming, since there is no terminal to draw the UI on.
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Install
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-------
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This fork isn't packaged anywhere; download `pidcat.py` from this repo and
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place it on your PATH.
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The Homebrew and AUR packages below install the upstream, non-interactive
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`pidcat` instead:
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* OS X: Use [Homebrew][2].
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brew install pidcat
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If you need to install the latest development version
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brew unlink pidcat
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brew install --HEAD pidcat
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* Arch Linux : Install the package called `pidcat-git` from the [AUR][4].
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Make sure that `adb` from the [Android SDK][3] is on your PATH. This script will
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not work unless this is that case. That means, when you type `adb` and press
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enter into your terminal something actually happens.
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To include `adb` and other android tools on your path:
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export PATH=$PATH:<path to Android SDK>/platform-tools
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export PATH=$PATH:<path to Android SDK>/tools
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Include these lines in your `.bashrc` or `.zshrc`.
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*Note:* `<path to Android SDK>` should be absolute and not relative.
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`pidcat` requires at least version 8.30 of `coreutils`. Ubuntu 20.04 LTS already ships
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with it, for 18.04 and below, `coreutils` can be upgraded from the `focal` repo by running
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the following:
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```shell
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sudo add-apt-repository 'deb http://archive.ubuntu.com/ubuntu focal main restricted universe multiverse'
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sudo apt-get update
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sudo apt-get -t focal install coreutils
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```
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[1]: http://jsharkey.org/blog/2009/04/22/modifying-the-android-logcat-stream-for-full-color-debugging/
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[2]: http://brew.sh
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[3]: http://developer.android.com/sdk/
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[4]: https://aur.archlinux.org/packages/pidcat-git/
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[5]: https://github.com/JakeWharton/pidcat
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