[v6-exp] New performance focused clone example + forward ports #1255
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This example focuses on the least consumptiong of memory, while also taking into account the total operation time. The go-git compared to its git CLI counterpart: go run _examples/clone/fast/main.go https://github.com/go-git/go-git /tmp/go-git-clone GIT_TRACE_PERFORMANCE=true git clone --no-tags --depth 1 --single-branch https://github.com/go-git/go-git /tmp/go-git-clone 10:15:50.616532 upload_pack.go:41: performance: 0.234388589 s: upload_pack Enumerating objects: 582, done. Counting objects: 100% (582/582), done. Compressing objects: 100% (531/531), done. Total 582 (delta 31), reused 165 (delta 10), pack-reused 0 (from 0) 10:15:50.683061 common.go:32: performance: 0.066241589 s: update_obj_storage 10:15:50.811161 worktree.go:366: performance: 0.127937022 s: reset_worktree 10:15:50.811257 repository.go:489: performance: 0.597924171 s: git command: git clone https://github.com/go-git/go-git commit 9973a38 GIT_TRACE_PERFORMANCE=true git clone --depth 1 --single-branch https://github.com/go-git/go-git /tmp/git-cli-clone Cloning into '/tmp/git-cli-clone'... remote: Enumerating objects: 582, done. remote: Counting objects: 100% (582/582), done. remote: Compressing objects: 100% (531/531), done. remote: Total 582 (delta 31), reused 165 (delta 10), pack-reused 0 (from 0) Receiving objects: 100% (582/582), 654.33 KiB | 6.00 MiB/s, done. Resolving deltas: 100% (31/31), done. 10:23:04.662692 trace.c:416 performance: 0.205806146 s: git command: /usr/libexec/git/git --shallow-file /tmp/git-cli-clone/.git/shallow.lock index-pack --stdin -v --fix-thin '--keep=fetch-pack 122550 on localhost.localdomain' 10:23:04.662821 trace.c:416 performance: 0.607833632 s: git command: /usr/libexec/git/git remote-https origin https://github.com/go-git/go-git 10:23:04.664931 trace.c:416 performance: 0.000640393 s: git command: /usr/libexec/git/git rev-list --objects --stdin --not --all --quiet --alternate-refs '--progress=Checking connectivity' 10:23:04.667253 unpack-trees.c:2009 performance: 0.000710704 s: traverse_trees 10:23:04.678219 unpack-trees.c:511 performance: 0.010950771 s: check_updates 10:23:04.678465 cache-tree.c:491 performance: 0.000228486 s: cache_tree_update 10:23:04.678472 unpack-trees.c:2106 performance: 0.011949092 s: unpack_trees 10:23:04.678728 read-cache.c:3114 performance: 0.000251809 s: write index, changed mask = 2a 10:23:04.678772 trace.c:416 performance: 0.628392351 s: git command: git clone --depth 1 --single-branch https://github.com/go-git/go-git /tmp/git-cli-clone Signed-off-by: Paulo Gomes <pjbgf@linux.com>
* previously an example existed for working with `config.Config`, but changes in implementation made the example not usable. (see go-git#75) * this mostly puts back the original example with some modifications to make it work with current implementation
Signed-off-by: Paulo Gomes <pjbgf@linux.com>
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