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view tests/test-stack.t @ 39494:e72130f58f5d
snapshot: consider all snapshots in the parents' chains
There are no reasons to only consider full snapshot as a possible base for an
intermediate snapshot. Now that the basic principles have been set, we can
start adding more levels of snapshots.
We now consider all snapshots in the parent's chains (full or intermediate).
This creates a chain of intermediate snapshots, each smaller than the previous
one.
# Effect On The Test Repository
In the test repository, we can see a decrease in the revlog size and slightly
shorter delta chain.
However, that approach creates snapshots more frequently, increasing the risk
of ending into problematic cases in very branchy repositories (not triggered
by the test repository). The next changesets will remove that risk by adding
logic that increases deltas reuse.
author | Boris Feld <boris.feld@octobus.net> |
---|---|
date | Fri, 07 Sep 2018 11:17:30 -0400 |
parents | 68fcc5503ec5 |
children |
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This test test the low-level definition of stack, agnostic from all formatting Initial setup $ cat << EOF >> $HGRCPATH > [ui] > logtemplate = {rev} {branch} {phase} {desc|firstline}\n > [extensions] > rebase= > [experimental] > evolution=createmarkers,exchange,allowunstable > EOF $ hg init main $ cd main $ hg branch other marked working directory as branch other (branches are permanent and global, did you want a bookmark?) $ echo aaa > aaa $ hg add aaa $ hg commit -m c_a $ echo aaa > bbb $ hg add bbb $ hg commit -m c_b $ hg branch foo marked working directory as branch foo $ echo aaa > ccc $ hg add ccc $ hg commit -m c_c $ echo aaa > ddd $ hg add ddd $ hg commit -m c_d $ echo aaa > eee $ hg add eee $ hg commit -m c_e $ echo aaa > fff $ hg add fff $ hg commit -m c_f $ hg log -G @ 5 foo draft c_f | o 4 foo draft c_e | o 3 foo draft c_d | o 2 foo draft c_c | o 1 other draft c_b | o 0 other draft c_a Check that stack doesn't include public changesets -------------------------------------------------- $ hg up other 0 files updated, 0 files merged, 4 files removed, 0 files unresolved $ hg log -G -r "stack()" @ 1 other draft c_b | o 0 other draft c_a $ hg phase --public 'branch("other")' $ hg log -G -r "stack()" $ hg up foo 4 files updated, 0 files merged, 0 files removed, 0 files unresolved Simple test ----------- 'stack()' list all changeset in the branch $ hg branch foo $ hg log -G -r "stack()" @ 5 foo draft c_f | o 4 foo draft c_e | o 3 foo draft c_d | o 2 foo draft c_c | ~ Case with some of the branch unstable ------------------------------------ $ hg up 3 0 files updated, 0 files merged, 2 files removed, 0 files unresolved $ echo bbb > ddd $ hg commit --amend 2 new orphan changesets $ hg log -G @ 6 foo draft c_d | | * 5 foo draft c_f | | | * 4 foo draft c_e | | | x 3 foo draft c_d |/ o 2 foo draft c_c | o 1 other public c_b | o 0 other public c_a $ hg log -G -r "stack()" @ 6 foo draft c_d | ~ $ hg up -r "desc(c_e)" 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg log -G -r "stack()" @ 4 foo draft c_e | x 3 foo draft c_d | ~ $ hg up -r "desc(c_d)" 1 files updated, 0 files merged, 1 files removed, 0 files unresolved $ hg log -G -r "stack()" @ 6 foo draft c_d | ~ Case with multiple topological heads ------------------------------------ Make things linear again $ hg rebase -s 'desc(c_e)' -d 'desc(c_d) - obsolete()' rebasing 4:4f2a69f6d380 "c_e" rebasing 5:913c298d8b0a "c_f" $ hg log -G o 8 foo draft c_f | o 7 foo draft c_e | @ 6 foo draft c_d | o 2 foo draft c_c | o 1 other public c_b | o 0 other public c_a Create the second branch $ hg up 'desc(c_d)' 0 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo aaa > ggg $ hg add ggg $ hg commit -m c_g created new head $ echo aaa > hhh $ hg add hhh $ hg commit -m c_h $ hg log -G @ 10 foo draft c_h | o 9 foo draft c_g | | o 8 foo draft c_f | | | o 7 foo draft c_e |/ o 6 foo draft c_d | o 2 foo draft c_c | o 1 other public c_b | o 0 other public c_a Test output $ hg log -G -r "stack(10)" @ 10 foo draft c_h | o 9 foo draft c_g | ~ $ hg log -G -r "stack(8)" o 8 foo draft c_f | o 7 foo draft c_e | ~ $ hg log -G -r "stack(head())" @ 10 foo draft c_h | o 9 foo draft c_g | ~ o 8 foo draft c_f | o 7 foo draft c_e | ~ Check the stack order $ hg log -r "first(stack())" 9 foo draft c_g $ hg log -r "first(stack(10))" 9 foo draft c_g $ hg log -r "first(stack(8))" 7 foo draft c_e $ hg log -r "first(stack(head()))" 7 foo draft c_e Case with multiple heads with unstability involved -------------------------------------------------- We amend the message to make sure the display base pick the right changeset $ hg up 'desc(c_d)' 0 files updated, 0 files merged, 2 files removed, 0 files unresolved $ echo ccc > ddd $ hg commit --amend -m 'c_D' 4 new orphan changesets $ hg rebase -d . -s 'desc(c_g)' rebasing 9:2ebb6e48ab8a "c_g" rebasing 10:634f38e27a1d "c_h" $ hg log -G o 13 foo draft c_h | o 12 foo draft c_g | @ 11 foo draft c_D | | * 8 foo draft c_f | | | * 7 foo draft c_e | | | x 6 foo draft c_d |/ o 2 foo draft c_c | o 1 other public c_b | o 0 other public c_a We should improve stack definition to also show 12 and 13 here $ hg log -G -r "stack()" @ 11 foo draft c_D | ~