Develop Reference

Install Git in Pydroid 3 terminal

I'm using Pydroid3 and would like to use Git in the Pydroid Terminal.
In my Termux terminal I was able to install Git as described here: Python and Git on Android
The git command is now only recognized in the Termux Terminal but not in Pydroid :(. Installation of Git with apt-get in the Pydroid Terminal is not possible.
Has anybody managed to install Git for Pydroid?

This is working for me; you might need to tweak the curl or configure commands if things fail. I haven't looked into ssh for now, only https.
# enter dev folder
cd $HOME
# set a prefix variable for convenience
export PREFIX="$(readlink -f "$PKG_CONFIG_PATH"/../..)"
# if you want git-remote-https, first build and install curl
curl -LO https://curl.se/download/curl-7.77.0.tar.bz2
tar -jxvf curl-7.77.0.tar.bz2
cd curl-7.77.0
./configure --prefix="$PREFIX" --disable-static --with-openssl --with-ca-path=/system/etc/security/cacerts --with-ca-bundle="$SSL_CERT_FILE"
make -j8 install
cd ..
# download and enter git sources
curl -LO https://www.kernel.org/pub/software/scm/git/git-2.32.0.tar.gz
tar -zxvf git-2.32.0.tar.gz
cd git-2.32.0
# reconfigure git for platform
./configure --prefix="$PREFIX" --without-tcltk --disable-pthreads LDFLAGS="-lssl -lcrypto -lz"
# if you didn't install curl, download autoconf's install script since there is no coreutils on android
# curl "http://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=blob_plain;f=build-aux/install-sh;hb=HEAD" -o install
# otherwise copy curl's install script in
cp ../curl-*/install-sh install
# build and install git
make -j8 install INSTALL="sh $(pwd)/install"

Stock Android OS downloading [AOSP] and sync issue

I have started my AOSP download with lot of hiccups.
I followed the google official site instructions.
$ mkdir ~/aosp/bin
$ PATH=~/aosp/bin:$PATH
$ curl https://storage.googleapis.com/git-repo-downloads/repo > ~/aosp/bin/repo
$ chmod a+x ~/aosp/bin/repo
$ mkdir zero
$ cd zero
$ git config --global user.name "Your Name"
$ git config --global user.email "you#example.com
$ repo init -u https://android.googlesource.com/platform/manifest -b android-4.4.2_r1
$ repo sync -j2 -f
As of now my .repo folder is 40GB and sync is still on its been 2 days. Please can anybody help me, all I need is KitKat OS.
Also could anyone enlighten me about project-object and project directories in repo directory.
Thanks in advance

When you do:
repo sync -j2 -f
You are synchronizing everything, which is huge. Give this a try:
repo sync -j8 -c
This will only synch the initialized manifest, which is not as big. When you don't specify a manifest name with -m option, if falls to look for default.xml, which as I can see in https://android.googlesource.com/platform/manifest/+/refs/heads/android-4.4.2_r1 that's the manifest file for the branch you want.
Also -j specifies the threads used, nowadays you can give -j8 at least a try.
With -f you force the download, this does not affect on the size of what you download, nor the speed. You can drop it if desired.
Hope it helps!

After a week's struggle completed the repo sync of KITKAT OS from google. even though you select only a particular OS, It will go upto 58 GB. Out of that 58 GB your KITKAT OS will be only of 9.5 GB. Rest is your .repo in your WORKING DIRECTORY. After sync is complete you will find your OS source in your WORKING DIRECTORY along side .repo.
STEPS:
$ mkdir ~/bin
$ PATH=~/bin:$PATH
$ curl https://storage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
$ chmod a+x ~/bin/repo
$ mkdir WORKING_DIRECTORY
$ cd WORKING_DIRECTORY
$ git config --global user.name "Your Name"
$ git config --global user.email "you#example.com"
$ repo init -u https://android.googlesource.com/platform/manifest -b OS version
check with google's "source code tags and build" page to select your OS version.
$ repo sync -j18 -c
flags that can be used with repo sync
sync-j - The value for this will be the number of threads to use when syncing the system. Parallelization helps get the job done quicker, but could also get the computer or the network stuck. Using 4 threads is what commonly used for syncing.
sync-c - syncing only the current branch/tag from git. This will checkout for each project only the current branch/tag that we specify for it, and not any other branches that exists on the repository. This will help save some space and bandwidth (and also time), but if you’ll need to switch between branches on a specific project later on - you’ll need to fetch it manually.
it took 8 days for me to get this done as my internet speed is slow (100kbps).
Thank you #Olaia for all the help. hope this helps for anyone out there.

How to get list of currently working commands in Cygwin?

Currently working with the linphone-android integration. I have installed some packages during installation of Cygwin.
When I try some of the commands like ls, rm, cd, wget, tar and etc.. are working fine. But few commands like shell, clean are not working. It gives error command not found.
So, my question is,
Is there any way to get list of working commands for Cygwin?
Is there any way to install packages for these commands rather than installing them manually?

In my opinion the most elegant solution is to use the compgen command:
compgen -c lists all the available commands
compgen -a lists all the available aliases
You can also try a more brute approach:
Get all the paths from cygwin using echo $PATH and then for each folder execute ls -h <folder_name>

For installing a package the best way is to install first the equavalent of apt-get: apt-cyg from https://github.com/transcode-open/apt-cyg and put it in /usr/local/bin:
wget raw.github.com/transcode-open/apt-cyg/master/apt-cyg<br>
chmod +x apt-cyg<br>
mv apt-cyg /usr/local/bin<br>
You can also try running the setup executable used to install cygwin setup.exe -q -n -N -d -R c:\cygwin -s http://mirror_site_to_use -l c:\local_package_folder for a local package or setup.exe -q -P package_name to let the setup download the package

How to run BASH script in my Android?

My same BASH script is working in Fedora/CentOS.
But I am testing one Android eee pad transformer.
Where i have terminal access and i wrote a small test script. But its not working, how can i fix it? what am i doing wrong?
/data/data/berserker.android.apps.sshdroid/home $ cat test.sh
#!/bin/bash
var=`ifconfig -a`;
echo $var;
/data/data/berserker.android.apps.sshdroid/home $ chmod +x test.sh
/data/data/berserker.android.apps.sshdroid/home $ ./test.sh
sh: ./test.sh: not found
/data/data/berserker.android.apps.sshdroid/home $ uname -a
Linux localhost 2.6.36.3-00004-g069b8b5 #1 SMP PREEMPT Wed May 11 22:14:22 CST 2011 armv7l GNU/Linux
/data/data/berserker.android.apps.sshdroid/home $ bash ./test.sh
sh: bash: Permission denied
/data/data/berserker.android.apps.sshdroid/home $ ls -l /bin/bash
ls: /bin/bash: No such file or directory
/data/data/berserker.android.apps.sshdroid/home $ find / -name "bash"
find: /config: Permission denied
lots more.......
find: /proc/595/task/598/fd: Permission denied
......
find: /data: Permission denied
find: /root: Permission denied
Follow up:
This is my script now which works:
#!/bin/sh
echo "hello wassup, run me simply as './test.sh'";
or
#!/bin/bash
echo "hello wassup, run me using 'sh ./test.sh'";

in Android the shell is located in /system/bin/sh not /bin/sh like it is on most Unix-like systems. So even if you change #!/bin/bash to #!/bin/sh it will still not work. you'll have to use #!/system/bin/sh
Android is not a GNU/Linux distribution so you can't expect that all scripts that run on GNU/Linux to also work on Android.

May be it will work when calling interpreter with a script?
$ bash ./test.sh
I saw, that although it is specified #!/bin/bash error was posted by sh - may be it do wrong.
UPD
$ sh ./test.sh

Most Android devices don't have a bash interpreter installed. If you really need to run the script across Linux and Android, you could try using BusyBox but that will require rooting your device (and potentially voiding your warranty). Even then though, I don't know if the ifconfig utility is included in BusyBox.
I would strongly recommend using the Android SDK to write an app to do whatever your trying to accomplish.

As was stated, the Android OS (up to and including 4.0) does not include the BASH interpreter (just shell). While BusyBox is a great tool, I believe it's only a single executable that combines stripped-down-functionality-for-size versions of common UNIX utilities, but doesn't actually include the BASH interpreter.
For an Android compiled version of the BASH interpreter, refer to this Forum thread:
http://forum.xda-developers.com/showthread.php?t=537827

You can install Busybox, which provides you with many utilities such as awk, file, etc... and Terminal Emulator.
Create a shell file with #!/system/bin/sh as the first line (shebang)
Now place the completed script under /system/xbin or /system/bin and run it from the Terminal Emulator
The information is an excerpt from this article : HOW TO RUN SHELL SCRIPTS ON ANDROID DEVICES

repo: command not found?

I am new to git and repo. I am in window 7 so I use cygwin. I have installed git from cygwin setup. After that I try to repo with the following command in cygwin.
$ repo init-u git://android.git.kernel.org/platform/manifest.git
I get an error like these:
bash: repo: command not found
I think I need to setup cygwin for repo. What do I need next to get repo?

Case 1: Not installed google repo yet?
mkdir ~/bin
PATH=~/bin:$PATH
curl https://storage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
chmod a+x ~/bin/repo
Use the following checksums when required:
For version 1.25 it is
d06f33115aea44e583c8669375b35aad397176a411de3461897444d247b6c220
For version 1.26, it is 0cf5f52bcafb8e1d3ba0271b087312f6117b824af272bedd4ee969d52363a86b
Case 2: Already have google repo Installed, still wondering what went wrong ?
Add
PATH=~/bin:$PATH to the end of file ~/.bashrc
and then run
source ~/.bashrc

You still need to install repo. repo is a third party tool built on top of git. See:
http://source.android.com/source/downloading.html
for how to install

I have the same problem and I have to do:
$ PATH=~/bin:$PATH every time I repo sync but at least it works.

add line
export PATH=~/bin:$PATH in file ~/.bashrc

edit .bash_profile and uncomment these fields. (any text editor will do)
# Set PATH so it includes user's private bin if it exists
# if [ -d "${HOME}/bin" ] ; then
# PATH="${HOME}/bin:${PATH}"
# fi
Restart CYGWIN.

Check and see if you have both .profile & .bash_profile in the working directory.
If you do, it's possible that the export command in both is actually conflicting in your shell. Making the output look something like this in Windows...
PATH="C:/Windows/path/to/repo/Windows/path/to/repo:$PATH"
export PATH
That's what happened to my bash shell anyway. It is correct that the 2 files interact with Bash or Cygwin differently, however if you have redundant inputs, they will compile together...

This answer for android build system error
For Python 3
If you get a "/usr/bin/env 'python' no such file or directory" error message, use one of the following solutions:
If your Ubuntu 20.04.2 LTS is a newly installed (vs. upgraded) Linux version:
sudo ln -s /usr/bin/python3 /usr/bin/python
f using Git version 2.19 or greater, you can specify --partial-clone when performing repo init. This makes use of Git's partial clone capability to only download Git objects when needed, instead of downloading everything. Because using partial clones means that many operations must communicate with the server, use the following if you're a developer and you're using a network with low latency:
repo init -u https://android.googlesource.com/platform/manifest -b master --partial-clone --clone-filter=blob:limit=10M
you can see document in
Downloading the Source