最近项目里的代码再给codeup上推的时候，提示单个文件有200M的，提示使用Git-LFS,但是我觉得是个测试文件，没必要，而且试了试用这玩意也挺麻烦，以后clone库也会很大，于是目标就是把log里的大文件记录删除。
于是不小小搜到了git-filter-branch,发现还挺牛逼，试用成功，解决了问题，再次记录一下实践。
问题现状
$ git push hcgit dev --force
Enumerating objects: 8152, done.
Counting objects: 100% (8152/8152), done.
Delta compression using up to 8 threads
Compressing objects: 100% (3987/3987), done.
Writing objects: 82% (6720/8152), 151.04 MiB | 844.00 KiB/s
Writing objects: 100% (8152/8152), 525.79 MiB | 670.00 KiB/s, done.
Total 8152 (delta 3780), reused 7040 (delta 3089), pack-reused 0
remote: Resolving deltas: 100% (3780/3780), done.
remote: 推送失败，以下文件大小超过单文件 200MB 的系统限额:
remote: Blob ID | Size(MB) | File name
remote: -------------------------------
remote: 0e758bba | 399.42 | 0a326316-4d6a-445b-867d-d6f26771ad9e-00000066117006-118413ac-0000-0000-4444-463547545348-20230221091617728795.2109.spectrum
remote:
remote: 大文件请使用 Git-LFS 管理，使用说明: https://help.aliyun.com/document_detail/206887.html
To codeup.aliyun.com:hc/41674-redcreation/22jcdsj_java.git
! [remote rejected] dev -> dev (pre-receive hook declined)
error: failed to push some refs to 'codeup.aliyun.com:hc/41674-redcreation/22jcdsj_java.git'
操作
1. 查看前15个大文件
$ git rev-list --objects --all | grep "$(git verify-pack -v .git/objects/pack/*.idx | sort -k 3 -n | tail -15 | awk '{print$1}')"
d7051ee827ea6beba442b82cbee58c691d23b75a doc/jcdsj/protocol/TC5-WG8-2018-053-2018-1373T-YD-超短波监测管理一体化平台技术规范+第3部分：设备操作服务（送审稿）.pdf
e48876576e4a204c782649664bdca13d0316458b flink-tutorial/src/main/java/cn/cetc22/calculate/location/dll/DWDll/result.txt
81a0013b70fc72fb8c12db80ebd15fc87e51210e flink-tutorial/src/main/java/cn/cetc22/calculate/location/dll/xhfxDLL/libippse9.so
f452de044f7507bcb028db76de20c1a5533bc1f8 flink-tutorial/src/main/java/cn/cetc22/calculate/location/dll/xhfxDLL/libippsl9.so
c651d7011c83cedbc403a06d231e8463a4444f43 flink-tutorial/src/main/java/cn/cetc22/calculate/location/dll/xhfxDLL/libippsm7.so
47d0573522b566c3fdd868329a81739a71ef9f99 flink-tutorial/src/main/java/cn/cetc22/calculate/location/dll/xhfxDLL/libippsn8.so
9f38b34b7435809a69c3841409e59a0f6bc34ad4 flink-tutorial/src/main/java/cn/cetc22/calculate/location/dll/xhfxDLL/libippsy8.so
a88fd60fe66882f6cbc1d5a9610699c5ae1dc85d freqmonitor/src/main/resources/static/js/echarts/echarts.js
d873059b01f562af8d17500141ef859d4a149089 freqmonitor/src/main/resources/static/js/echarts/echarts.js.map
0617c7ee877ca6a61b5ef3b918f1f7a97be58533 lib/codec-lib-0.1.0-SNAPSHOT-standalone.jar
5ccc9b192caa4ecd11f032e37a717e45126ab649 lib/phoenix-client-hbase-2.4.0-5.1.2After.jar
0e758bbab5a1dadf3b21d37eee579ad5474414a2 upload/0a326316-4d6a-445b-867d-d6f26771ad9e-00000066117006-118413ac-0000-0000-4444-463547545348-20230221091617728795.2109.spectrum
76fdb307c55adef9aeb3efbf8f506cf609857f35 out/artifacts/flink_tutorial_jar/flink-tutorial.jar
5c4807cdecfeff6a1441e643aa2f73d55882e872 lib/websocket_server_jar/netty-all-4.1.18.Final.jar
2fb4d3bcf8463d41c48717c09f161caf421f6ac3 flink-tutorial/src/main/resources/lib/Algms-0.4.11.jar
2. 删除文件夹
upload文件里是上传的不应该push的测试文件，当时upload没有加到gitignore。
这一步删除git log里包含upload的文件夹。
$ git filter-branch --tree-filter 'rm -rf upload' --tag-name-filter cat -- --all
WARNING: git-filter-branch has a glut of gotchas generating mangled history
rewrites. Hit Ctrl-C before proceeding to abort, then use an
alternative filtering tool such as 'git filter-repo'
(https://github.com/newren/git-filter-repo/) instead. See the
filter-branch manual page for more details; to squelch this warning,
set FILTER_BRANCH_SQUELCH_WARNING=1.
Proceeding with filter-branch...
Rewrite 50bbc30ab715ddcc27b1702c75e8d8aeb2caa0ab (253/254) (93 seconds passed, remaining 0 predicted)
Ref 'refs/heads/master' was rewritten
Ref 'refs/remotes/origin/master' was rewritten
Ref 'refs/remotes/origin/dev' was rewritten
WARNING: Ref 'refs/remotes/origin/master' is unchanged
Ref 'refs/remotes/origin/new_branch' was rewritten
Ref 'refs/tags/v0.1' was rewritten
v0.1 -> v0.1 (c762af9f9e53763c10820a77102a701baa997573 -> a05d7d92cb5b8425a21a5012c6ea697b56cb9df4)
3. 回收内存
下面几个命令
rm -rf .git/refs/original/
git reflog expire --expire=now --all
git fsck --full --unreachable
git repack -A -d
git gc --aggressive --prune=now
实践：
# mahaiqiang @ mahaiqiangdeMacBook-Air in ~/Downloads/jcdsj-backend on git:master o [11:05:00]
$ rm -rf .git/refs/original/
# mahaiqiang @ mahaiqiangdeMacBook-Air in ~/Downloads/jcdsj-backend on git:master o [11:06:40]
$ git reflog expire --expire=now --all
# mahaiqiang @ mahaiqiangdeMacBook-Air in ~/Downloads/jcdsj-backend on git:master o [11:06:45]
$ git fsck --full --unreachable
Checking object directories: 100% (256/256), done.
Checking objects: 100% (8164/8164), done.
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unreachable commit 2575883814dc67ca2fc81b39bba289117e623004
unreachable commit 29f5de0f25df8d9685140b3298418ad7d93d5869
unreachable commit 4975f6482c18e15e9379e998f57a395a33fca5ed
unreachable commit ec7725a15456bc166301234f61fd6f1c6ab1daba
unreachable commit 0a78d0ec36cc516690d4e06fb31161a79765d3e0
unreachable tree 4f78ce94d357de081deef9ff01af3c37d70cf946
unreachable tree 1f795a090e758bfab2a9e172395df9f36c65c799
unreachable blob 4cf981ea872ca89645c01a3b980f088bf5081ec9
unreachable commit 07fa51ea7c68aeb1edc617c04627d088248ad567
unreachable tree 61fab67e3901ff191a794944de526b34e9e58fa3
unreachable commit c9fdc36cc69b976ef11317cbd36082192f2a912e
unreachable tree 4d7f1f8a93fc1f025536411c701c761c03399a9a
unreachable blob 8c7f4eac447083955b505b95232dbd9e79ab2da3
# mahaiqiang @ mahaiqiangdeMacBook-Air in ~/Downloads/jcdsj-backend on git:master o [11:06:53]
$ git repack -A -d
Enumerating objects: 8149, done.
Counting objects: 100% (8149/8149), done.
Delta compression using up to 8 threads
Compressing objects: 100% (3571/3571), done.
Writing objects: 100% (8149/8149), done.
Total 8149 (delta 3570), reused 7953 (delta 3499), pack-reused 0
# mahaiqiang @ mahaiqiangdeMacBook-Air in ~/Downloads/jcdsj-backend on git:master o [11:07:03]
$ git gc --aggressive --prune=now
Enumerating objects: 8149, done.
Counting objects: 100% (8149/8149), done.
Delta compression using up to 8 threads
Compressing objects: 100% (7069/7069), done.
Writing objects: 100% (8149/8149), done.
Total 8149 (delta 4152), reused 3655 (delta 0), pack-reused 0
# mahaiqiang @ mahaiqiangdeMacBook-Air in ~/Downloads/jcdsj-backend on git:master o [11:07:13]
$ du -sh .git
254M .git
# mahaiqiang @ mahaiqiangdeMacBook-Air in ~/Downloads/jcdsj-backend on git:master o [11:07:20]
$ git push --force --all
Enumerating objects: 7421, done.
Counting objects: 100% (7421/7421), done.
Delta compression using up to 8 threads
Compressing objects: 100% (2819/2819), done.
Writing objects: 100% (7421/7421), 249.08 MiB | 56.96 MiB/s, done.
Total 7421 (delta 3710), reused 7242 (delta 3604), pack-reused 0
remote: Resolving deltas: 100% (3710/3710)
remote: Counting objects: 2310, done
remote: Updating references: 100% (1/1)
To http://192.168.3.244:8010/r/2023JCDSJ/jcdsj-backend.git
+ 07fa51e...df73248 master -> master (forced update)
# mahaiqiang @ mahaiqiangdeMacBook-Air in ~/Downloads/jcdsj-backend on git:master o [11:07:45]
$ tig
# mahaiqiang @ mahaiqiangdeMacBook-Air in ~/Downloads/jcdsj-backend on git:master o [11:07:59]
$ git checkout dev
branch 'dev' set up to track 'origin/dev'.
Switched to a new branch 'dev'
# mahaiqiang @ mahaiqiangdeMacBook-Air in ~/Downloads/jcdsj-backend on git:dev o [11:09:25]
$ du -sh .git
254M .git
# mahaiqiang @ mahaiqiangdeMacBook-Air in ~/Downloads/jcdsj-backend on git:dev o [11:09:30]
$ git filter-branch --tree-filter 'rm -rf upload' --tag-name-filter cat -- --all
WARNING: git-filter-branch has a glut of gotchas generating mangled history
rewrites. Hit Ctrl-C before proceeding to abort, then use an
alternative filtering tool such as 'git filter-repo'
(https://github.com/newren/git-filter-repo/) instead. See the
filter-branch manual page for more details; to squelch this warning,
set FILTER_BRANCH_SQUELCH_WARNING=1.
Proceeding with filter-branch...
Rewrite 2d02df295743edd1dad5ff18c80eddccb5dd7fb1 (253/254) (75 seconds passed, remaining 0 predicted)
WARNING: Ref 'refs/heads/dev' is unchanged
WARNING: Ref 'refs/heads/master' is unchanged
WARNING: Ref 'refs/remotes/origin/master' is unchanged
WARNING: Ref 'refs/remotes/origin/dev' is unchanged
WARNING: Ref 'refs/remotes/origin/master' is unchanged
WARNING: Ref 'refs/remotes/origin/new_branch' is unchanged
WARNING: Ref 'refs/tags/v0.1' is unchanged
v0.1 -> v0.1 (a05d7d92cb5b8425a21a5012c6ea697b56cb9df4 -> a05d7d92cb5b8425a21a5012c6ea697b56cb9df4)
# mahaiqiang @ mahaiqiangdeMacBook-Air in ~/Downloads/jcdsj-backend on git:dev o [11:11:14]
$ rm -rf .git/refs/original/
# mahaiqiang @ mahaiqiangdeMacBook-Air in ~/Downloads/jcdsj-backend on git:dev o [11:11:24]
$ git reflog expire --expire=now --all
# mahaiqiang @ mahaiqiangdeMacBook-Air in ~/Downloads/jcdsj-backend on git:dev o [11:11:28]
$ git fsck --full --unreachable
Checking object directories: 100% (256/256), done.
Checking objects: 100% (8149/8149), done.
Verifying commits in commit graph: 100% (254/254), done.
# mahaiqiang @ mahaiqiangdeMacBook-Air in ~/Downloads/jcdsj-backend on git:dev o [11:11:32]
$ git repack -A -d
Enumerating objects: 8149, done.
Counting objects: 100% (8149/8149), done.
Delta compression using up to 8 threads
Compressing objects: 100% (2917/2917), done.
Writing objects: 100% (8149/8149), done.
Total 8149 (delta 4152), reused 8149 (delta 4152), pack-reused 0
# mahaiqiang @ mahaiqiangdeMacBook-Air in ~/Downloads/jcdsj-backend on git:dev o [11:11:42]
$ git gc --aggressive --prune=now
Enumerating objects: 8149, done.
Counting objects: 100% (8149/8149), done.
Delta compression using up to 8 threads
Compressing objects: 100% (7069/7069), done.
Writing objects: 100% (8149/8149), done.
Total 8149 (delta 4159), reused 3962 (delta 0), pack-reused 0
4. 提交变动
$ git push --force --all
Enumerating objects: 903, done.
Counting objects: 100% (903/903), done.
Delta compression using up to 8 threads
Compressing objects: 100% (352/352), done.
Writing objects: 100% (740/740), 6.50 MiB | 38.47 MiB/s, done.
Total 740 (delta 395), reused 643 (delta 305), pack-reused 0
remote: Resolving deltas: 100% (395/395)
remote: Counting objects: 3547, done
remote: Updating references: 100% (1/1)
To http://192.168.3.244:8010/r/2023JCDSJ/jcdsj-backend.git
+ 50bbc30...2d02df2 dev -> dev (forced update)
5. push到阿里云
$ git remote add hcgit git@codeup.aliyun.com:hc/41674-redcreation/22jcdsj_java.git
$ git push hcgit dev --force
Enumerating objects: 8137, done.
Counting objects: 100% (8137/8137), done.
Delta compression using up to 8 threads
Compressing objects: 100% (2909/2909), done.
Writing objects: 100% (8137/8137), 253.55 MiB | 1.68 MiB/s, done.
Total 8137 (delta 4153), reused 8133 (delta 4151), pack-reused 0
remote: Resolving deltas: 100% (4153/4153), done.
To codeup.aliyun.com:hc/41674-redcreation/22jcdsj_java.git
+ 01e6103...2d02df2 dev -> dev (forced update)
总结
这个filter-branch的功能本次是删除了文件夹，也可以①用来删除历史记录中敏感想删除的文件，②比如删除某天前的所有log等
学无止境
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