icyleaf/app-info

Teardown parser tool for mac, windows and mobile app (ipa, apk and aab file) and dSYM.zip file, analysis metedata like version, name, icon etc.

👋 Hi there, I'm icyleaf

A passionate learner and developer from Beijing.

• 🏢 I'm a freelancer
• 🌱 Currently learning Rust
• 💻 Connect with me on Telegram
• 👀 a slash guy on the weedend: console gamer/outdoorer/homebrewer.

adores reinventing the wheel!

app-info's Issues

/var/lib/gems/2.7.0/gems/app-info-2.5.4/lib/app_info.rb:30:in `parse': app_info.txt (AppInfo::NotFoundError)

sudo gem install app-info

终端执行 ruby app_info.rb

require 'app-info'

Description: 获取APP包信息

puts ARGV.to_s

Automatic detect file extsion and parse

apk = AppInfo.parse(ARGV[1])

属性文档： https://github.com/icyleaf/app_info/tree/master/spec/app_info

app_name = apk.name
app_version = apk.release_version
app_build_version = apk.build_version
app_size = apk.size(true)
app_identifier = apk.bundle_id
app_os = apk.os

app_info = "#{app_name},#{app_version},#{app_size},#{app_build_version},#{app_identifier},#{app_os}"

Fastlane与Jenkins数据通信 使用存到文件再读取文件的方式

File.write(ARGV[2], "#{app_info}")

不支持苹果M1芯片？

/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require': dlopen(/Library/Ruby/Gems/2.6.0/gems/pngdefry-0.1.3/lib/pngdefry.bundle, 0x0009): missing compatible arch in /Library/Ruby/Gems/2.6.0/gems/pngdefry-0.1.3/lib/pngdefry.bundle - /Library/Ruby/Gems/2.6.0/gems/pngdefry-0.1.3/lib/pngdefry.bundle (LoadError)

Reduce namespace

From 2.0 version, AppInfo will remove Parser module level to reduce namespace.

before:

AppInfo::Parser::IPA.new file
AppInfo::Parser::Platform::Android

after

AppInfo::IPA.new file
AppInfo::Platform::Android

How to clear tmp folder after ipa parsing

Hello

I found that AppInfo store all parsed files in tmp folder on Ubuntu server. Is it possible to delete the created folder when it is not needed?

Thanks

incompatible character encodings: UTF-8 and ASCII-8BIT

/Library/Ruby/Gems/2.6.0/gems/terminal-table-1.8.0/lib/terminal-table/table.rb:142:in `join': [!] incompatible character encodings: UTF-8 and ASCII-8BIT (Encoding::CompatibilityError) @icyleaf

不支持Flutter项目？

[BUG] Missing version constrains on dependencies

Sorry

Failure to get iOS dSYM binary file in alpine OS

Current get dSYM binary it always fetch the last one:

paths = ['.', 'BINARY', '..']

paths = ['.', '..', 'BINARY']

rails 5.2.3 ios app parsing release type set to nil

Cannot read mobileprovision on Ubuntu 18.04

The mobileprovision file reading doesn't seem to work on Ubuntu 18.04 servers.

I have tried following commands:

ipa=AppInfo.parse("tmp/storage/ios/app.ipa") # <AppInfo::Parser::IPA:0x005593c7258108 @file="tmp/storage/ios/app.ipa", @contents="/tmp/d20190628-1205-1l8tcbk/AppInfo-ios-571df9d7d57eb92000ae58c3a9659007", @app_path="/tmp/d20190628-1205-1l8tcbk/AppInfo-ios-571df9d7d57eb92000ae58c3a9659007/Payload/AppName.app">
ipa.expired_date # nil
ipa.mobileprovision # <AppInfo::Parser::MobileProvision:0x00558c5c7d4c20 @path=nil>

I also tried to work directly on embedded.mobileprovision file, but it didn't work as well.

p=AppInfo.parse("/tmp/embedded.mobileprovision") # <AppInfo::Parser::MobileProvision:0x005578ab330df0 @path="/tmp/embedded.mobileprovision">
p.expired_date # nil
p.team_name # nil

The same IPA file and same methods gives output for ipa.expired_date on MacOS.

DSYM format support

it allows zip file or dSYM directory, and support single MachO and Fat MachO，each MachO will returns:

• uuid
• cpu_name
• cpu_type
• type
• size

and If dSYM include Info.plist it will try to parse the metadata such like release_version, build_version, identifier

App validation using file extension?

Is it necessary to validate a file if its an app or not just by looking at its extension? I can have a temp file to be parsed which is not having a .ipa/.apk extension.
The same case can be a vice-versa; if I have a file with .ipa/.apk extension but actual content is different.

Undefined method `to_sym' for nil:NilClass

A crash may occur when inspecting an aab file.

Under certain circumstances resources defined in the project will have undefined values causing a crash when parsed.

A sample repository can be found here which reproduces the crash.

A patch file is provided which resolves the issue
0001-prevent-calling-to_sym-on-nil-value_from.value.patch

Stack Trace

Traceback (most recent call last):
        75: from /Users/jmorales/.gem/bin/bundle:23:in `<main>'
        74: from /Users/jmorales/.gem/bin/bundle:23:in `load'
        73: from /Users/jmorales/.gem/gems/bundler-2.3.22/exe/bundle:36:in `<top (required)>'
        72: from /Users/jmorales/.gem/gems/bundler-2.3.22/lib/bundler/friendly_errors.rb:120:in `with_friendly_errors'
        71: from /Users/jmorales/.gem/gems/bundler-2.3.22/exe/bundle:48:in `block in <top (required)>'
        70: from /Users/jmorales/.gem/gems/bundler-2.3.22/lib/bundler/cli.rb:25:in `start'
        69: from /Users/jmorales/.gem/gems/bundler-2.3.22/lib/bundler/vendor/thor/lib/thor/base.rb:485:in `start'
        68: from /Users/jmorales/.gem/gems/bundler-2.3.22/lib/bundler/cli.rb:31:in `dispatch'
        67: from /Users/jmorales/.gem/gems/bundler-2.3.22/lib/bundler/vendor/thor/lib/thor.rb:392:in `dispatch'
        66: from /Users/jmorales/.gem/gems/bundler-2.3.22/lib/bundler/vendor/thor/lib/thor/invocation.rb:127:in `invoke_command'
        65: from /Users/jmorales/.gem/gems/bundler-2.3.22/lib/bundler/vendor/thor/lib/thor/command.rb:27:in `run'
        64: from /Users/jmorales/.gem/gems/bundler-2.3.22/lib/bundler/cli.rb:486:in `exec'
        63: from /Users/jmorales/.gem/gems/bundler-2.3.22/lib/bundler/cli/exec.rb:23:in `run'
        62: from /Users/jmorales/.gem/gems/bundler-2.3.22/lib/bundler/cli/exec.rb:58:in `kernel_load'
        61: from /Users/jmorales/.gem/gems/bundler-2.3.22/lib/bundler/cli/exec.rb:58:in `load'
        60: from /Users/jmorales/.gem/bin/fastlane:23:in `<top (required)>'
        59: from /Users/jmorales/.gem/bin/fastlane:23:in `load'
        58: from /Users/jmorales/.gem/gems/fastlane-2.212.1/bin/fastlane:23:in `<top (required)>'
        57: from /Users/jmorales/.gem/gems/fastlane-2.212.1/fastlane/lib/fastlane/cli_tools_distributor.rb:123:in `take_off'
        56: from /Users/jmorales/.gem/gems/fastlane-2.212.1/fastlane/lib/fastlane/commands_generator.rb:43:in `start'
        55: from /Users/jmorales/.gem/gems/fastlane-2.212.1/fastlane/lib/fastlane/commands_generator.rb:354:in `run'
        54: from /Users/jmorales/.gem/gems/commander-4.6.0/lib/commander/delegates.rb:18:in `run!'
        53: from /Users/jmorales/.gem/gems/fastlane-2.212.1/fastlane_core/lib/fastlane_core/ui/fastlane_runner.rb:124:in `run!'
        52: from /Users/jmorales/.gem/gems/commander-4.6.0/lib/commander/runner.rb:444:in `run_active_command'
        51: from /Users/jmorales/.gem/gems/commander-4.6.0/lib/commander/command.rb:157:in `run'
        50: from /Users/jmorales/.gem/gems/commander-4.6.0/lib/commander/command.rb:187:in `call'
        49: from /Users/jmorales/.gem/gems/fastlane-2.212.1/fastlane/lib/fastlane/commands_generator.rb:110:in `block (2 levels) in run'
        48: from /Users/jmorales/.gem/gems/fastlane-2.212.1/fastlane/lib/fastlane/command_line_handler.rb:36:in `handle'
        47: from /Users/jmorales/.gem/gems/fastlane-2.212.1/fastlane/lib/fastlane/lane_manager.rb:47:in `cruise_lane'
        46: from /Users/jmorales/.gem/gems/fastlane-2.212.1/fastlane/lib/fastlane/runner.rb:45:in `execute'
        45: from /Users/jmorales/.gem/gems/fastlane-2.212.1/fastlane/lib/fastlane/runner.rb:45:in `chdir'
        44: from /Users/jmorales/.gem/gems/fastlane-2.212.1/fastlane/lib/fastlane/runner.rb:49:in `block in execute'
        43: from /Users/jmorales/.gem/gems/fastlane-2.212.1/fastlane/lib/fastlane/lane.rb:33:in `call'
        42: from Fastfile:36:in `block (2 levels) in parsing_binding'
        41: from /Users/jmorales/.gem/gems/fastlane-2.212.1/fastlane/lib/fastlane/fast_file.rb:159:in `method_missing'
        40: from /Users/jmorales/.gem/gems/fastlane-2.212.1/fastlane/lib/fastlane/runner.rb:157:in `trigger_action_by_name'
        39: from /Users/jmorales/.gem/gems/fastlane-2.212.1/fastlane/lib/fastlane/runner.rb:229:in `execute_action'
        38: from /Users/jmorales/.gem/gems/fastlane-2.212.1/fastlane/lib/fastlane/runner.rb:229:in `chdir'
        37: from /Users/jmorales/.gem/gems/fastlane-2.212.1/fastlane/lib/fastlane/runner.rb:255:in `block in execute_action'
        36: from /Users/jmorales/.gem/gems/fastlane-2.212.1/fastlane/lib/fastlane/actions/actions_helper.rb:69:in `execute_action'
        35: from /Users/jmorales/.gem/gems/fastlane-2.212.1/fastlane/lib/fastlane/runner.rb:263:in `block (2 levels) in execute_action'
        34: from /Users/jmorales/.gem/gems/fastlane-plugin-app_info-0.7.0/lib/fastlane/plugin/app_info/actions/app_info_action.rb:16:in `run'
        33: from /Users/jmorales/.gem/gems/fastlane-plugin-app_info-0.7.0/lib/fastlane/plugin/app_info/helper/app_info_helper.rb:18:in `raw_data'
        32: from /Users/jmorales/.gem/gems/fastlane-plugin-app_info-0.7.0/lib/fastlane/plugin/app_info/helper/app_info_helper.rb:53:in `common_columns'
        31: from /Users/jmorales/.gem/gems/fastlane-plugin-app_info-0.7.0/lib/fastlane/plugin/app_info/helper/app_info_helper.rb:53:in `each_with_object'
        30: from /Users/jmorales/.gem/gems/fastlane-plugin-app_info-0.7.0/lib/fastlane/plugin/app_info/helper/app_info_helper.rb:53:in `each'
        29: from /Users/jmorales/.gem/gems/fastlane-plugin-app_info-0.7.0/lib/fastlane/plugin/app_info/helper/app_info_helper.rb:54:in `block in common_columns'
        28: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/aab.rb:57:in `name'
        27: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/aab.rb:182:in `manifest'
        26: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/aab.rb:187:in `resource'
        25: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:12:in `parse'
        24: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:12:in `new'
        23: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:20:in `initialize'
        22: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:41:in `parse'
        21: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:46:in `define_packages'
        20: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:46:in `each_with_object'
        19: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:46:in `each'
        18: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:47:in `block in define_packages'
        17: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:47:in `new'
        16: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:62:in `initialize'
        15: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:103:in `define_types'
        14: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:103:in `each'
        13: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:105:in `block in define_types'
        12: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:117:in `parse_from'
        11: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:117:in `each_with_object'
        10: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:117:in `each'
         9: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:118:in `block in parse_from'
         8: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:118:in `new'
         7: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:129:in `initialize'
         6: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:150:in `parse'
         5: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:150:in `each_with_object'
         4: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:150:in `each'
         3: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:151:in `block in parse'
         2: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:151:in `new'
         1: from /Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:166:in `initialize'
/Users/jmorales/.gem/gems/app-info-2.8.3/lib/app_info/protobuf/resources.rb:191:in `parsed_value': \e[31m[!] undefined method `to_sym' for nil:NilClass\e[0m (NoMethodError)

✅ fastlane environment ✅

Stack

Key	Value
OS	13.2
Ruby	2.7.5
Bundler?	true
Git	git version 2.37.1 (Apple Git-137.1)
Installation Source	~/.rbenv/versions/2.7.5/bin/fastlane
Host	macOS 13.2 (22D49)
Ruby Lib Dir	~/.rbenv/versions/2.7.5/lib
OpenSSL Version	OpenSSL 1.1.1l 24 Aug 2021
Is contained	false
Is homebrew	false
Is installed via Fabric.app	false
Xcode Path	/Applications/Xcode.app/Contents/Developer/
Xcode Version	14.2
Swift Version	5.7.2

System Locale

Variable	Value
LANG	en_US.UTF-8	✅
LC_ALL
LANGUAGE

fastlane files:

`./fastlane/Fastfile`

# This file contains the fastlane.tools configuration
# You can find the documentation at https://docs.fastlane.tools
#
# For a list of all available actions, check out
#
#     https://docs.fastlane.tools/actions
#
# For a list of all available plugins, check out
#
#     https://docs.fastlane.tools/plugins/available-plugins
#

# Uncomment the line if you want fastlane to automatically update itself
# update_fastlane

default_platform(:android)

platform :android do
  desc "Runs all the tests"
  lane :test do
    gradle(task: "test")
  end

  desc "Submit a new Beta Build to Crashlytics Beta"
  lane :beta do
    gradle(task: "clean assembleRelease")
    crashlytics
  
    # sh "your_script.sh"
    # You can also use other beta testing services here
  end

  desc "Deploy a new version to the Google Play"
  lane :deploy do
    gradle(task: "clean bundleDebug")
    app_info(file: lane_context[SharedValues::GRADLE_AAB_OUTPUT_PATH])
  end
end

`./fastlane/Appfile`

json_key_file("") # Path to the json secret file - Follow https://docs.fastlane.tools/actions/supply/#setup to get one
package_name("com.example.myapplication") # e.g. com.krausefx.app

fastlane gems

Gem	Version	Update-Status
fastlane	2.212.1	✅ Up-To-Date

Loaded fastlane plugins:

Plugin	Version	Update-Status
fastlane-plugin-app_info	0.7.0	✅ Up-To-Date

Loaded gems

Gem	Version
did_you_mean	1.4.0
bundler	2.3.22
uri	0.10.0
rake	13.0.6
rexml	3.2.5
CFPropertyList	3.0.6
public_suffix	5.0.1
addressable	2.8.1
rubyzip	2.3.2
android_parser	2.5.0
google-protobuf	3.21.12
icns	0.2.0
image_size	3.0.2
ruby-macho	3.0.0
uuidtools	2.2.0
app-info	2.8.3
artifactory	3.0.15
atomos	0.1.3
aws-eventstream	1.2.0
aws-partitions	1.721.0
aws-sigv4	1.5.2
jmespath	1.6.2
aws-sdk-core	3.170.0
aws-sdk-kms	1.63.0
aws-sdk-s3	1.119.1
babosa	1.0.4
claide	1.1.0
colored	1.2
colored2	3.1.2
highline	2.0.3
commander	4.6.0
declarative	0.0.20
digest-crc	0.6.4
unf_ext	0.0.8.2
unf	0.1.4
domain_name	0.5.20190701
dotenv	2.8.1
emoji_regex	3.2.3
excon	0.99.0
faraday-em_http	1.0.0
faraday-em_synchrony	1.0.0
faraday-excon	1.1.0
faraday-httpclient	1.0.1
multipart-post	2.0.0
faraday-multipart	1.0.4
faraday-net_http	1.0.1
faraday-net_http_persistent	1.2.0
faraday-patron	1.0.0
faraday-rack	1.0.0
faraday-retry	1.0.3
ruby2_keywords	0.0.5
faraday	1.10.3
http-cookie	1.0.5
faraday-cookie_jar	0.0.7
faraday_middleware	1.2.0
fastimage	2.2.6
gh_inspector	1.1.3
jwt	2.7.0
memoist	0.16.2
multi_json	1.15.0
os	1.1.4
signet	0.17.0
googleauth	1.3.0
httpclient	2.8.3
mini_mime	1.1.2
trailblazer-option	0.1.2
uber	0.1.0
representable	3.2.0
retriable	3.1.2
webrick	1.8.1
google-apis-core	0.11.0
google-apis-androidpublisher_v3	0.35.0
google-apis-playcustomapp_v1	0.13.0
google-apis-iamcredentials_v1	0.17.0
google-apis-storage_v1	0.19.0
google-cloud-env	1.6.0
google-cloud-errors	1.3.1
google-cloud-core	1.6.0
google-cloud-storage	1.44.0
json	2.6.3
mini_magick	4.12.0
naturally	2.2.1
optparse	0.1.1
plist	3.7.0
security	0.1.3
simctl	1.6.10
terminal-notifier	2.0.0
unicode-display_width	1.8.0
terminal-table	1.8.0
tty-screen	0.8.1
tty-cursor	0.7.1
tty-spinner	0.9.3
word_wrap	1.0.0
nanaimo	0.3.0
xcodeproj	1.22.0
rouge	2.0.7
xcpretty	0.3.0
xcpretty-travis-formatter	1.0.1
fastlane-plugin-app_info	0.7.0

generated on: 2023-03-08

CFBundleDisplayName can't handle UTF-8

when CFBundleDisplayName is NOT English, ipa.info[:CFBundleDisplayName] failed:

[!] undefined method []' for #<AppInfo::Parser::InfoPlist:0x00007fcc01131e90> (NoMethodError) from /private/var/root/project/iOS/fastlane-kit/GeneralFastfile.rb:16:in chdir'
from /private/var/root/project/iOS/fastlane-kit/GeneralFastfile.rb:16:in get_ipa_info' from Fastfile:202:in block (2 levels) in parsing_binding'
from /Library/Ruby/Gems/2.3.0/gems/fastlane-2.130.0/fastlane/lib/fastlane/lane.rb:33:in call' from /Library/Ruby/Gems/2.3.0/gems/fastlane-2.130.0/fastlane/lib/fastlane/runner.rb:49:in block in execute'
from /Library/Ruby/Gems/2.3.0/gems/fastlane-2.130.0/fastlane/lib/fastlane/runner.rb:45:in chdir' from /Library/Ruby/Gems/2.3.0/gems/fastlane-2.130.0/fastlane/lib/fastlane/runner.rb:45:in execute'
from /Library/Ruby/Gems/2.3.0/gems/fastlane-2.130.0/fastlane/lib/fastlane/lane_manager.rb:56:in cruise_lane' from /Library/Ruby/Gems/2.3.0/gems/fastlane-2.130.0/fastlane/lib/fastlane/command_line_handler.rb:36:in handle'
from /Library/Ruby/Gems/2.3.0/gems/fastlane-2.130.0/fastlane/lib/fastlane/commands_generator.rb:108:in block (2 levels) in run' from /Library/Ruby/Gems/2.3.0/gems/commander-fastlane-4.4.6/lib/commander/command.rb:178:in call'
from /Library/Ruby/Gems/2.3.0/gems/commander-fastlane-4.4.6/lib/commander/command.rb:153:in run' from /Library/Ruby/Gems/2.3.0/gems/commander-fastlane-4.4.6/lib/commander/runner.rb:476:in run_active_command'
from /Library/Ruby/Gems/2.3.0/gems/fastlane-2.130.0/fastlane_core/lib/fastlane_core/ui/fastlane_runner.rb:76:in run!' from /Library/Ruby/Gems/2.3.0/gems/commander-fastlane-4.4.6/lib/commander/delegates.rb:15:in run!'
from /Library/Ruby/Gems/2.3.0/gems/fastlane-2.130.0/fastlane/lib/fastlane/commands_generator.rb:349:in run' from /Library/Ruby/Gems/2.3.0/gems/fastlane-2.130.0/fastlane/lib/fastlane/commands_generator.rb:41:in start'
from /Library/Ruby/Gems/2.3.0/gems/fastlane-2.130.0/fastlane/lib/fastlane/cli_tools_distributor.rb:119:in take_off' from /Library/Ruby/Gems/2.3.0/gems/fastlane-2.130.0/bin/fastlane:23:in <top (required)>'
from /usr/local/bin/fastlane:22:in load' from /usr/local/bin/fastlane:22:in

'

Android aab format support

base/manifest/AndroidManifest.xml is compiled into protocol buffer format which makes it easier for tooling to transform when required.

Resources:

• https://developer.android.com/guide/app-bundle/app-bundle-format
• https://proandroiddev.com/protobuf-in-android-55b01d855c40
• https://medium.com/google-developer-experts/exploring-the-android-app-bundle-ca16846fa3d7
• https://gist.github.com/Farious/e841ef85a8f4280e4f248ba8037ea2c0

ERROR: While executing gem ... (Gem::FilePermissionError)

执行gem install 报错

liming@limingdeMac-mini cocoapods % sudo gem install app-info
Password:
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/universal-darwin21/rbconfig.rb:230: warning: Insecure world writable dir /opt/homebrew in PATH, mode 040777
ERROR:  While executing gem ... (Gem::FilePermissionError)
    You don't have write permissions for the /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/gems/2.6.0 directory.