Logcatf 
A Command line tool for format Android Logcat.
Use like this.
$ adb logcat -v time | logcatf --colorOutput:
Examples
# show time, pid and message formatted.
$ adb logcat -v time | logcatf "%t %4i %m"
# output to csv format.
$ adb logcat -v threadtime | logcatf --to-csv > logcat.csv
# get screencap on Exception
$ adb logcat -v time | logcatf -o "MY_APP.*Error" -c "adb shell screencap -p /sdcard/a.png"Install
You can get binary from github release page.
or, use go get:
$ go get github.com/ujiro99/logcatfBasic Usage
$ adb logcat -v time | logcatf "%t, %m"Available Format:
| format | long ver. |
|---|---|
| %t | %time |
| %a | %tag |
| %p | %priority |
| %i | %pid |
| %I | %tid |
| %m | %message |
Other Flags:
| Flag | description |
|---|---|
| %a | left-align |
| %8a | min-width 8, right-align |
| %-8a | min-width 8, left-align |
| %8.8a | width 8, right-align |
Default Format:
"%t %p %a: %m"
Options
execute commands
You can execute other commands when a keyword matched to Logcat.
-o, --on=ON regex to trigger a COMMAND.
-c, --command=COMMAND COMMAND will be executed on regex matched.
- In COMMAND, you can use parsed logcat value using keyword same as format or environment variables.
ex) -o "MY_APP.*Error" -c "echo %m > error.log"
-o "MY_APP.*Error" -c "echo \${message} > error.log" # linux, mac
-o "MY_APP.*Error" -c "echo %message% > error.log" # Windows- Command's stdout is redirected to stderr of logcatf.
- You can use multiple -o / -c pairs.
Output CSV
output to CSV format.
--to-csv output to CSV format. double-quote will be escaped.
--encode=ENCODE output character encode. { utf-8 | shift-jis | euc-jp | iso-2022-jp }
- if use on Windows, encode will be used shift-jis.
Color
specify output Color.
--color enable ANSI color. ( defalult = false )
--color-v=COLOR - color for verbose.
--color-d=COLOR - color for debug.
--color-i=COLOR - color for information.
--color-w=COLOR - color for warning.
--color-e=COLOR - color for error.
--color-f=COLOR - color for fatal.
- This function uses mitchellh/colorstring.
- In format string, you can use color tags.
ex) $ adb logcat | logcatf "%t [invert] %a [reset] [_white_] %m" --color --color-i "cyan"Available Color Tags:
| Foreground | Background | ||
|---|---|---|---|
| black | dark_gray | _black_ | _dark_gray_ |
| red | light_red | _red_ | _light_red_ |
| green | light_green | _green_ | _light_green_ |
| yellow | light_yellow | _yellow_ | _light_yellow_ |
| blue | light_blue | _blue_ | _light_blue_ |
| magenta | light_magenta | _magenta_ | _light_magenta_ |
| cyan | light_cyan | _cyan_ | _light_cyan_ |
| white | light_gray | _white_ | _light_gray_ |
| default | _default_ |
| Attributes | |
|---|---|
| bold | blink_slow |
| dim | blink_fast |
| underline | invert |
| Reset |
|---|
| reset |
| reset_bold |
Contribution
- Fork (https://github.com/ujiro99/logcatf/fork)
- Create a feature branch
- Commit your changes
- Rebase your local changes against the master branch
- Run test suite with the
go test ./...command and confirm that it passes - Run
gofmt -s - Create a new Pull Request