# Building Libraries for iOS Componentization by using cocoaPods

:::info
:bulb:

**This content discusses the modularization of partial code components, utilizing the CocoaPods method to manage the code separately, gradually solving the issues of CPU loading, code readability etc...**

**By modularizing the project code, not only can we clearly separate code functionalities for a more readability, we can also alleviate CPU load during system initialization process.**

**This helps reduce CPU burden, and the components can be imported as needed to achieve the goal of modularization.**

**The following content is primarily based on GitLab.**
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## :book:Before setting up a library, it's necessary to create an index repository.

#### 1.Firstly, check the index repository on the current system.

pod repo
or
pod repo list
if you want to remove repo, you can alse call

pod repo remove (remote index repository)

#### 2. Create a local index repository then link it to the recently created remote index repository. Remote index repository must have a master branch, so you can add a readme file.

cd (local folder)
pod repo add indexRepository(CLThirdTestSpec) gitlab address(https://gitlab.com/chuan800418/clthirdtest.git)



#### 3. Start to created local private repository

pod lib create repository(CLThirdTest)

‼️ This **repository(CLThirdTest)** is the place which stroe the code, don't mess up with **remote index repository(CLThirdTestSpec)**


You can just choose the answer that you want!

Relust of folder:


then you can call pod install once time.

pod install

#### 4. Configure "podspec"

<1> ‼️ s.homepage = 'https://gitlab.com/chuan800418/clthirdtest'
<2> ‼️ s.source = { :git =>
'https://gitlab.com/chuan800418/clthirdtest.git', :tag => s.version.to_s, :branch => "master" }

<3> ‼️ s.version = '0.0.xxx'
Version here need to be set as same as the tag version(next process).


#### 5. Local check

After we push the code we need to make once local check

pod lib lint --private --allow-warnings


#### 6. Push to remote

<1> you can choose the command line:

pod install
git status
git add .
git commit -m "init"
git remote add origin
git push -u origin master

<2> Source Tree



#### 7. Tag

‼️ Tag version here need to as same as "podspec"!!!!!!!

git tag version number-
git push --tags


#### 8. remote check

make remote check one time

pod spec lint --private --allow-warnings

#### 9. release

pod repo push indexRepository(CLThirdTestSpec) repository.xxxpodspec(CLThirdTest.podspec) --allow-warnings


Then excute

pod repo update
pod search repository(CLThirdTest)

#### 10. Ustage

finally we can pod your package into others project like:


And run pod install


‼️ Add Code Here

‼️ One another thing: Any code you want to release in Xcode need keywords "public"

#### 11. public repository
If you want to put yours package to cocoapos public repository

<1> Execute:

pod trunk register Email Address([e-mail]) userName(chuan800418)

<2>Then go to verify


After success execute:

pod trunk push repository.xxxpodspec(CLThirdTest.podspec) --allow-warnings


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## ErrorHandling

If some project too old and Xcode 1.4.3 doesn't including file 'arc' need to execute the modify below:

1.
<1> System Setting -> privacy And Security -> Full Disk Access

<2>

cd /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/
sudo mkdir arc
cd arc
sudo git clone https://github.com/kamyarelyasi/Libarclite-Files.git .

2. If command line show error msg below, please excute

pod repo remove (remote index repository)
and
cd (local folder)
pod repo add indexRepository(CLThirdTestSpec) gitlab address(https://gitlab.com/chuan800418/clthirdtest.git)