Menene bambance tsakanin rebase da merge?

Question

Accepted Answer

Dukansu **merge** da **rebase** suna haɗa canje-canje daga reshe ɗaya zuwa wata, amma suna yi hakan ta hanyoyi daban-daban: merge **yana kiyaye tarihi** tare da merge commit, yayin da rebase **yana sake rubutu tarihi** don samar da jerin layi. Fahimtar bambancin da kuma lokaci da za a yi amfani da kowansu yana da mahimmanci.

## Merge — yana kiyaye tarihi (yana haɗa)

```text
main:     A───B───C───────M     ← M is a MERGE COMMIT (two parents)
                  \       /
feature:           D───E
→ git merge feature: creates M combining the branches
  ✓ Preserves the actual history (shows the branch existed, when it merged)
  ✗ History has merge commits (can look cluttered with many merges)
```

## Rebase — yana sake rubutu don tarihin layi (yana sake taya)

```text
BEFORE:  main: A───B───C    feature: A───B───D───E
AFTER rebase feature onto main:
         main: A───B───C    feature: A───B───C───D'───E'
→ git rebase main (on feature): REPLAYS feature's commits (D,E) ON TOP of main's latest (C)
  ✓ LINEAR, clean history (no merge commits) — as if feature was built on current main
  ✗ REWRITES commits (D→D', E→E' are NEW commits with new hashes)
```

Rebase **yana motsa** commits na reshen ka don fara daga gida na reshen daban, yana samar da commits sababi — yana samar da tarihi mai tsafta, na layi.

## Alqur'ar zinariya na rebasing

```text
⚠️ NEVER rebase commits that have been PUSHED/SHARED (public history):
  → rebasing rewrites commits (new hashes) → diverges from what others have
  → causes serious confusion and conflicts for collaborators
→ Rebase only LOCAL, unpushed commits. Merge for integrating shared/public branches.
```

## Lokaci da za a yi amfani da kowansu

```text
MERGE  → integrating shared branches; preserving true history; team default for merging
  features to main (often via pull requests). Safe, non-destructive.
REBASE → cleaning up LOCAL commits before sharing; keeping a feature branch up-to-date
  with main (linear); achieving clean linear history. On local/private commits only.
→ Common workflow: rebase locally to tidy up, then merge (or PR) into main.
```

## Me yasa ya tattara

Fahimtar bambancin tsakanin rebase da merge yana da mahimmanci saboda dukansu suna haɗa canje-canje amma tare da tasirin daban-daban akan tarihi, kuma zaɓi da inganci (da kuma karewa) yana da aiki, saboda haka yana da daraja Git ilimi da kuma ana bugi a takaice.

Bambancin tsakiya — **merge yana kiyaye tarihi** (yana samar da merge commit da ke yin rikodin reshe masu haɗa, yana kiyaye ainihin tarihin ci gaba) yayin da **rebase yana sake rubutu tarihi** (yana sake taya commits a jajere gida na reshen daban don samar da jerin layi mai tsafta a matsayin cewa aikin ya kasance akan kodun kwata-kwata) — yana shafar ta yadda tarihin jerin aiki ke yake kuma yana karantawa.

Fahimtar alagoron (merge: daidai amma mai yiwuwar cikakke tare da merge commits; rebase: mai tsafta da layi amma sake rubutu commits) yana taimaka wajen zaɓi bisa ga ko kun ba da daraja to ainihin tarihi ko layin tsafta.

Mafi mahimmanci, fahimtar **Alqur'ar zinariya na rebasing** — **kar a yi rebase commits da aka haɓa/raba** — yana mahimmanci saboda rebase yana sake rubutu commits (yana ba su sabuwar hashes), saboda haka rebase ta raba tarihi ya bambanta daga abin da masu haɗi suke da shi, yana haifar da muhimmiyar rudani da rikitarwa; rebase yana da karewa kawai ga local, commits da ba a haɓa su.

Jishin karewa wannan yana mahimmanci sosai kuma tushen matsaloli ne a lokaci da aka sa karewa.

Fahimtar **lokaci da za a yi amfani da kowansu** (merge don haɗa reshe masu raba da kiyaye tarihi, sau da yawa zaɓi na gida na tiim don haɗa fasojin ta hanyar pull requests; rebase don tsaftacewa na local commits kafin raba ko kiyaye reshen fasomi a jerin layi — akan local commits kawai) yana nuna tsarin Git na gida.

Tun da haɗa canje-canje yana mahimmanci kuma zaɓin merge-vs-rebase (tare da implications na tarihi da karewa) yana zaɓi na sau-sau da kuma jira da aka gabata, fahimtar bambancin — tasirin su akan tarihi, alqur'ar zinariya mai mahimmanci, da kuma lokaci da za a yi amfani da kowansu — yana da daraja, mahimmancin aiki Git ilimi da tsakiya ne ga kiyaye tarihin tsafta ta karewa kuma bambancin da aka bugi a takaice wanda kowane mai ci gaba ya kamata ya gaji.