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Android Library Finder

License: MIT License

Ruby 100.00%

alfi android-library tool android

alfi's Introduction

alfi

Android Library Finder

Search through thousands of android libraries that can help you scale your projects elegantly

Usage

Search for something

alfi picasso

Search for something by repository

alfi picasso --repository maven

This will search picasso only on maven, you can also define multiple repositories like:

alfi picasso -r mavencentral -r jcenter

This will search picasso on mavenCentral and jCenter

Final step: Copy the library you want to your build.gradle and sync it

Installation

Install it via terminal:

$ gem install alfi

Contributing

Fork it ( https://github.com/cesarferreira/alfi/fork )
Create your feature branch (git checkout -b my-new-feature)
Commit your changes (git commit -am 'Add some feature')
Push to the branch (git push origin my-new-feature)
Create a new Pull Request

Thanks

To @joaquimadraz for the ruby pro-tips

alfi's People

Contributors

Stargazers

Watchers

alfi's Issues

Fails to install with ruby 2.4.0

This is what I get:

➜  ~ gem install alfi
Building native extensions.  This could take a while...
ERROR:  Error installing alfi:
	ERROR: Failed to build gem native extension.

    current directory: /Users/dino/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/json-1.8.3/ext/json/ext/generator
/Users/dino/.rbenv/versions/2.4.0/bin/ruby -r ./siteconf20170110-22634-1h2aq5u.rb extconf.rb
creating Makefile

current directory: /Users/dino/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/json-1.8.3/ext/json/ext/generator
make "DESTDIR=" clean

current directory: /Users/dino/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/json-1.8.3/ext/json/ext/generator
make "DESTDIR="
compiling generator.c
generator.c:861:25: error: use of undeclared identifier 'rb_cFixnum'
    } else if (klass == rb_cFixnum) {
                        ^
generator.c:863:25: error: use of undeclared identifier 'rb_cBignum'
    } else if (klass == rb_cBignum) {
                        ^
generator.c:975:5: warning: division by zero is undefined [-Wdivision-by-zero]
    rb_scan_args(argc, argv, "01", &opts);
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2143:9: note: expanded from macro 'rb_scan_args'
        rb_scan_args0(argc,argvp,fmt,\
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2329:8: note: expanded from macro 'rb_scan_args0'
                     rb_scan_args_verify(fmt, varc), vars)
                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2201:11: note: expanded from macro 'rb_scan_args_verify'
        verify = rb_scan_args_verify_count(fmt, varc); \
                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
note: (skipping 4 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2167:6: note: expanded from macro 'rb_scan_args_count_hash'
     rb_scan_args_count_block(fmt, ofs, varc, vari) : \
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2162:6: note: expanded from macro 'rb_scan_args_count_block'
     rb_scan_args_count_end(fmt, ofs, varc, vari) : \
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2158:12: note: expanded from macro 'rb_scan_args_count_end'
    ((vari)/(!fmt[ofs] || rb_scan_args_bad_format(fmt)))
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
generator.c:975:5: warning: division by zero is undefined [-Wdivision-by-zero]
    rb_scan_args(argc, argv, "01", &opts);
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2143:9: note: expanded from macro 'rb_scan_args'
        rb_scan_args0(argc,argvp,fmt,\
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2329:8: note: expanded from macro 'rb_scan_args0'
                     rb_scan_args_verify(fmt, varc), vars)
                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2201:11: note: expanded from macro 'rb_scan_args_verify'
        verify = rb_scan_args_verify_count(fmt, varc); \
                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
note: (skipping 4 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2167:6: note: expanded from macro 'rb_scan_args_count_hash'
     rb_scan_args_count_block(fmt, ofs, varc, vari) : \
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2163:6: note: expanded from macro 'rb_scan_args_count_block'
     rb_scan_args_count_end(fmt, ofs+1, varc, vari+1))
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2158:12: note: expanded from macro 'rb_scan_args_count_end'
    ((vari)/(!fmt[ofs] || rb_scan_args_bad_format(fmt)))
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
generator.c:975:5: warning: division by zero is undefined [-Wdivision-by-zero]
    rb_scan_args(argc, argv, "01", &opts);
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2143:9: note: expanded from macro 'rb_scan_args'
        rb_scan_args0(argc,argvp,fmt,\
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2329:8: note: expanded from macro 'rb_scan_args0'
                     rb_scan_args_verify(fmt, varc), vars)
                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2201:11: note: expanded from macro 'rb_scan_args_verify'
        verify = rb_scan_args_verify_count(fmt, varc); \
                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
note: (skipping 4 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2168:6: note: expanded from macro 'rb_scan_args_count_hash'
     rb_scan_args_count_block(fmt, ofs+1, varc, vari+1))
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2162:6: note: expanded from macro 'rb_scan_args_count_block'
     rb_scan_args_count_end(fmt, ofs, varc, vari) : \
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2158:12: note: expanded from macro 'rb_scan_args_count_end'
    ((vari)/(!fmt[ofs] || rb_scan_args_bad_format(fmt)))
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
generator.c:975:5: warning: division by zero is undefined [-Wdivision-by-zero]
    rb_scan_args(argc, argv, "01", &opts);
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2143:9: note: expanded from macro 'rb_scan_args'
        rb_scan_args0(argc,argvp,fmt,\
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2329:8: note: expanded from macro 'rb_scan_args0'
                     rb_scan_args_verify(fmt, varc), vars)
                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2201:11: note: expanded from macro 'rb_scan_args_verify'
        verify = rb_scan_args_verify_count(fmt, varc); \
                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
note: (skipping 4 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2167:6: note: expanded from macro 'rb_scan_args_count_hash'
     rb_scan_args_count_block(fmt, ofs, varc, vari) : \
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2162:6: note: expanded from macro 'rb_scan_args_count_block'
     rb_scan_args_count_end(fmt, ofs, varc, vari) : \
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2158:12: note: expanded from macro 'rb_scan_args_count_end'
    ((vari)/(!fmt[ofs] || rb_scan_args_bad_format(fmt)))
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
generator.c:975:5: warning: division by zero is undefined [-Wdivision-by-zero]
    rb_scan_args(argc, argv, "01", &opts);
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2143:9: note: expanded from macro 'rb_scan_args'
        rb_scan_args0(argc,argvp,fmt,\
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2329:8: note: expanded from macro 'rb_scan_args0'
                     rb_scan_args_verify(fmt, varc), vars)
                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2201:11: note: expanded from macro 'rb_scan_args_verify'
        verify = rb_scan_args_verify_count(fmt, varc); \
                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
note: (skipping 4 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2167:6: note: expanded from macro 'rb_scan_args_count_hash'
     rb_scan_args_count_block(fmt, ofs, varc, vari) : \
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2162:6: note: expanded from macro 'rb_scan_args_count_block'
     rb_scan_args_count_end(fmt, ofs, varc, vari) : \
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2158:12: note: expanded from macro 'rb_scan_args_count_end'
    ((vari)/(!fmt[ofs] || rb_scan_args_bad_format(fmt)))
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
generator.c:975:5: warning: division by zero is undefined [-Wdivision-by-zero]
    rb_scan_args(argc, argv, "01", &opts);
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2143:9: note: expanded from macro 'rb_scan_args'
        rb_scan_args0(argc,argvp,fmt,\
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2329:8: note: expanded from macro 'rb_scan_args0'
                     rb_scan_args_verify(fmt, varc), vars)
                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2201:11: note: expanded from macro 'rb_scan_args_verify'
        verify = rb_scan_args_verify_count(fmt, varc); \
                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
note: (skipping 5 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2167:6: note: expanded from macro 'rb_scan_args_count_hash'
     rb_scan_args_count_block(fmt, ofs, varc, vari) : \
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2162:6: note: expanded from macro 'rb_scan_args_count_block'
     rb_scan_args_count_end(fmt, ofs, varc, vari) : \
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/dino/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2158:12: note: expanded from macro 'rb_scan_args_count_end'
    ((vari)/(!fmt[ofs] || rb_scan_args_bad_format(fmt)))
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
6 warnings and 2 errors generated.
make: *** [generator.o] Error 1

make failed, exit code 2

Gem files will remain installed in /Users/dino/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/json-1.8.3 for inspection.
Results logged to /Users/dino/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/extensions/x86_64-darwin-16/2.4.0-static/json-1.8.3/gem_make.out

Maybe you just need to bump the version of the json gem you are using?

Can't install in MacOS Sierra

sudo gem install alfi
ERROR: While executing gem ... (Errno::EPERM)
Operation not permitted - /usr/bin/bundle

ruby --version
ruby 2.0.0p648 (2015-12-16 revision 53162) [universal.x86_64-darwin16]

Gradle Kotlin-DSL has double quotes and parenthesis

Can you add an option --format=[kotlin|groovy] to generate the dependency information compatible with build.gradle for groovy and build.gradle.kts for kotlin?

Ideally calling with no format argument should use the previous value

--format=kotlin would be like this:

dependencies {
  implementation("com.squareup.picaso:picaso:2.5.2")
}

Support google() for search some library like androidX ?

Thanks for great work.

SSLError when searching

After installing the gem successfully..

C:\DevKit>chcp 1252
Active code page: 1252

C:\DevKit>gem install alfi
Fetching: json-2.0.4.gem (100%)
Temporarily enhancing PATH to include DevKit...
Building native extensions.  This could take a while...
Successfully installed json-2.0.4
Fetching: alfi-0.5.0.gem (100%)
Successfully installed alfi-0.5.0
Parsing documentation for json-2.0.4
Installing ri documentation for json-2.0.4
Parsing documentation for alfi-0.5.0
Installing ri documentation for alfi-0.5.0
Done installing documentation for json, alfi after 6 seconds
2 gems installed

Then I tried to search for any library.. this error shows??

C:\DevKit>alfi picasso
Searching...
C:/Ruby22/lib/ruby/2.2.0/net/http.rb:923:in `connect': SSL_connect returned=1 errno=0 state=error: certificate verify failed (OpenSSL::SSL::SSLError)
        from C:/Ruby22/lib/ruby/2.2.0/net/http.rb:923:in `block in connect'
        from C:/Ruby22/lib/ruby/2.2.0/timeout.rb:73:in `timeout'
        from C:/Ruby22/lib/ruby/2.2.0/net/http.rb:923:in `connect'
        from C:/Ruby22/lib/ruby/2.2.0/net/http.rb:863:in `do_start'
        from C:/Ruby22/lib/ruby/2.2.0/net/http.rb:852:in `start'
        from C:/Ruby22/lib/ruby/2.2.0/net/http.rb:1375:in `request'
        from C:/Ruby22/lib/ruby/gems/2.2.0/gems/alfi-0.5.0/lib/alfi/providers/bintray.rb:40:in `call'
        from C:/Ruby22/lib/ruby/gems/2.2.0/gems/alfi-0.5.0/lib/alfi/search.rb:16:in `block in call'
        from C:/Ruby22/lib/ruby/gems/2.2.0/gems/alfi-0.5.0/lib/alfi/search.rb:16:in `each'
        from C:/Ruby22/lib/ruby/gems/2.2.0/gems/alfi-0.5.0/lib/alfi/search.rb:16:in `call'
        from C:/Ruby22/lib/ruby/gems/2.2.0/gems/alfi-0.5.0/lib/alfi/cli.rb:24:in `call'
        from C:/Ruby22/lib/ruby/gems/2.2.0/gems/alfi-0.5.0/bin/alfi:5:in `<top (required)>'
        from C:/Ruby22/bin/alfi:23:in `load'
        from C:/Ruby22/bin/alfi:23:in `<main>'

Error installing alfi using ruby 2.5.0

$ gem install alfi
Building native extensions. This could take a while...
ERROR: Error installing alfi:
ERROR: Failed to build gem native extension.

current directory: /usr/local/lib/ruby/gems/2.5.0/gems/json-2.0.4/ext/json/ext/generator

/usr/local/opt/ruby/bin/ruby -r ./siteconf20180225-2421-jxjrmi.rb extconf.rb
creating Makefile

current directory: /usr/local/lib/ruby/gems/2.5.0/gems/json-2.0.4/ext/json/ext/generator
make "DESTDIR=" clean
xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun

current directory: /usr/local/lib/ruby/gems/2.5.0/gems/json-2.0.4/ext/json/ext/generator
make "DESTDIR="
xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun

make failed, exit code 1

Gem files will remain installed in /usr/local/lib/ruby/gems/2.5.0/gems/json-2.0.4 for inspection.
Results logged to /usr/local/lib/ruby/gems/2.5.0/extensions/x86_64-darwin-16/2.5.0/json-2.0.4/gem_make.out

shall we add Google's Maven Repository ?

repository is here : https://dl.google.com/dl/android/maven2/index.html

gem install alfi error

Hi ：
$ sudo gem install alfi
Building native extensions. This could take a while...
ERROR: Error installing alfi:
ERROR: Failed to build gem native extension.

    /usr/bin/ruby1.9.1 extconf.rb

/usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in require': cannot load such file -- mkmf (LoadError) from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in require'
from extconf.rb:1:in `

Gem files will remain installed in /var/lib/gems/1.9.1/gems/json-2.0.3 for inspection.

how can i search from https://maven.google.com

Can't install on Mac OSX El Capitain

Hi,

Mac OSX does not allow anymore to install anything in /usr/bin/ so we wan't install Alfi anymore :(

[ ~ ] sudo gem install alfi
ERROR: While executing gem ... (Errno::EPERM)
Operation not permitted - /usr/bin/alfi

Could you release a new version which installs the binary into /usr/local/bin/ ?

Thanks !

ssl error thrown when search

missing OptionParser

/Library/Ruby/Gems/2.0.0/gems/alfi-0.4.1/lib/alfi/cli.rb:34:in `create_options_parser': uninitialized constant Alfi::Cli::OptionParser (NameError)
    from /Library/Ruby/Gems/2.0.0/gems/alfi-0.4.1/lib/alfi/cli.rb:10:in `call'
    from /Library/Ruby/Gems/2.0.0/gems/alfi-0.4.1/bin/alfi:5:in `<top (required)>'
    from /usr/local/bin/alfi:23:in `load'
    from /usr/local/bin/alfi:23:in `<main>'

resolved by adding

require 'optparse'
include OptionParser::Arguable

to /Library/Ruby/Gems/2.0.0/gems/alfi-0.4.1/lib/alfi/cli.rb

Uninitialized constant Alfi::Providers::Base (NameError)

I have just installed alfi with rvm all do gem install alfi when I try to use it I receive an error:

$HOME/.rvm/gems/ruby-2.3.0/gems/alfi-0.4.3/lib/alfi/providers/bintray.rb:1:in `<top (required)>': uninitialized constant Alfi::Providers::Base (NameError)
    from $HOME/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from $HOME/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from $HOME/.rvm/gems/ruby-2.3.0/gems/alfi-0.4.3/lib/alfi.rb:10:in `block in <top (required)>'
    from $HOME/.rvm/gems/ruby-2.3.0/gems/alfi-0.4.3/lib/alfi.rb:10:in `each'
    from $HOME/.rvm/gems/ruby-2.3.0/gems/alfi-0.4.3/lib/alfi.rb:10:in `<top (required)>'
    from $HOME/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from $HOME/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from $HOME/.rvm/gems/ruby-2.3.0/gems/alfi-0.4.3/bin/alfi:3:in `<top (required)>'
    from $HOME/.rvm/gems/ruby-2.3.0/bin/alfi:23:in `load'
    from $HOME/.rvm/gems/ruby-2.3.0/bin/alfi:23:in `<main>'
    from $HOME/.rvm/gems/ruby-2.3.0/bin/ruby_executable_hooks:15:in `eval'
    from $HOME/.rvm/gems/ruby-2.3.0/bin/ruby_executable_hooks:15:in `<main>'

Could you tell me what am I doing wrong?

cannot install by gem

ERROR: Could not find a valid gem 'alfi' (>= 0), here is why:
Unable to download data from http://ruby.taobao.org/ - bad response Not Found 404 (http://ruby.taobao.org/specs.4.8.gz)

Crash when searching for hyphen or any other special character

~/Downloads [ alfi active-android ]
Searching...
/Library/Ruby/Gems/2.0.0/gems/alfi-0.3.2/lib/alfi.rb:35:in fetch_results': undefined method[]' for nil:NilClass (NoMethodError)
from /Library/Ruby/Gems/2.0.0/gems/alfi-0.3.2/lib/alfi.rb:98:in initialize' from /Library/Ruby/Gems/2.0.0/gems/alfi-0.3.2/bin/alfi:5:in<top (required)>'
from /usr/bin/alfi:23:in load' from /usr/bin/alfi:23:in

build fail in gem 2.3.0 of Mac Mojave

Building native extensions.  This could take a while...
ERROR:  Error installing alfi:
	ERROR: Failed to build gem native extension.

    current directory: /Library/Ruby/Gems/2.3.0/gems/json-2.0.4/ext/json/ext/generator
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/bin/ruby -r ./siteconf20190131-13583-1yv04yr.rb extconf.rb
creating Makefile

current directory: /Library/Ruby/Gems/2.3.0/gems/json-2.0.4/ext/json/ext/generator
make "DESTDIR=" clean

current directory: /Library/Ruby/Gems/2.3.0/gems/json-2.0.4/ext/json/ext/generator
make "DESTDIR="
compiling generator.c
In file included from generator.c:1:
In file included from ./../fbuffer/fbuffer.h:5:
In file included from /System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/include/ruby-2.3.0/ruby.h:33:
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/include/ruby-2.3.0/ruby/ruby.h:24:10: fatal error: 'ruby/config.h' file not found
#include "ruby/config.h"
         ^~~~~~~~~~~~~~~
1 error generated.
make: *** [generator.o] Error 1

make failed, exit code 2

Gem files will remain installed in /Library/Ruby/Gems/2.3.0/gems/json-2.0.4 for inspection.
Results logged to /Library/Ruby/Gems/2.3.0/extensions/universal-darwin-18/2.3.0/json-2.0.4/gem_make.out

how do I install Alfi