view tests/test-clone-r.t @ 17013:c8eda7bbdcab

strip: incrementally update the branchheads cache after a strip

This function augments strip to incrementally update the branchheads cache
rather than recompute it from scratch.  This speeds up the performance of strip
and rebase on repos with long history.  The performance optimization only
happens if the revisions stripped are all on the same branch and the parents of
the stripped revisions are also on that same branch.

This adds a few test cases, particularly one that reproduces the extra heads
that mpm observed.

  $ hg init test
  $ cd test

  $ echo 0 >> afile
  $ hg add afile
  $ hg commit -m "0.0"

  $ echo 1 >> afile
  $ hg commit -m "0.1"

  $ echo 2 >> afile
  $ hg commit -m "0.2"

  $ echo 3 >> afile
  $ hg commit -m "0.3"

  $ hg update -C 0
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ echo 1 >> afile
  $ hg commit -m "1.1"
  created new head

  $ echo 2 >> afile
  $ hg commit -m "1.2"

  $ echo a line > fred
  $ echo 3 >> afile
  $ hg add fred
  $ hg commit -m "1.3"
  $ hg mv afile adifferentfile
  $ hg commit -m "1.3m"

  $ hg update -C 3
  1 files updated, 0 files merged, 2 files removed, 0 files unresolved

  $ hg mv afile anotherfile
  $ hg commit -m "0.3m"

  $ hg debugindex -f 1 afile
     rev flag   offset   length     size   base   link     p1     p2       nodeid
       0 0000        0        3        2      0      0     -1     -1 362fef284ce2
       1 0000        3        5        4      1      1      0     -1 125144f7e028
       2 0000        8        7        6      2      2      1     -1 4c982badb186
       3 0000       15        9        8      3      3      2     -1 19b1fc555737

  $ hg debugindex adifferentfile
     rev    offset  length   base linkrev nodeid       p1           p2
       0         0      75      0       7 2565f3199a74 000000000000 000000000000

  $ hg debugindex anotherfile
     rev    offset  length   base linkrev nodeid       p1           p2
       0         0      75      0       8 2565f3199a74 000000000000 000000000000

  $ hg debugindex fred
     rev    offset  length   base linkrev nodeid       p1           p2
       0         0       8      0       6 12ab3bcc5ea4 000000000000 000000000000

  $ hg debugindex --manifest
     rev    offset  length   base linkrev nodeid       p1           p2
       0         0      48      0       0 43eadb1d2d06 000000000000 000000000000
       1        48      48      1       1 8b89697eba2c 43eadb1d2d06 000000000000
       2        96      48      2       2 626a32663c2f 8b89697eba2c 000000000000
       3       144      48      3       3 f54c32f13478 626a32663c2f 000000000000
       4       192      58      3       6 de68e904d169 626a32663c2f 000000000000
       5       250      68      3       7 09bb521d218d de68e904d169 000000000000
       6       318      54      6       8 1fde233dfb0f f54c32f13478 000000000000

  $ hg verify
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  4 files, 9 changesets, 7 total revisions

  $ cd ..

  $ for i in 0 1 2 3 4 5 6 7 8; do
  >   echo
  >   echo ---- hg clone -r "$i" test test-"$i"
  >   hg clone -r "$i" test test-"$i"
  >   cd test-"$i"
  >   hg verify
  >   cd ..
  > done
  
  ---- hg clone -r 0 test test-0
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  1 files, 1 changesets, 1 total revisions
  
  ---- hg clone -r 1 test test-1
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 1 files
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  1 files, 2 changesets, 2 total revisions
  
  ---- hg clone -r 2 test test-2
  adding changesets
  adding manifests
  adding file changes
  added 3 changesets with 3 changes to 1 files
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  1 files, 3 changesets, 3 total revisions
  
  ---- hg clone -r 3 test test-3
  adding changesets
  adding manifests
  adding file changes
  added 4 changesets with 4 changes to 1 files
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  1 files, 4 changesets, 4 total revisions
  
  ---- hg clone -r 4 test test-4
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 1 files
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  1 files, 2 changesets, 2 total revisions
  
  ---- hg clone -r 5 test test-5
  adding changesets
  adding manifests
  adding file changes
  added 3 changesets with 3 changes to 1 files
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  1 files, 3 changesets, 3 total revisions
  
  ---- hg clone -r 6 test test-6
  adding changesets
  adding manifests
  adding file changes
  added 4 changesets with 5 changes to 2 files
  updating to branch default
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  2 files, 4 changesets, 5 total revisions
  
  ---- hg clone -r 7 test test-7
  adding changesets
  adding manifests
  adding file changes
  added 5 changesets with 6 changes to 3 files
  updating to branch default
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  3 files, 5 changesets, 6 total revisions
  
  ---- hg clone -r 8 test test-8
  adding changesets
  adding manifests
  adding file changes
  added 5 changesets with 5 changes to 2 files
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  2 files, 5 changesets, 5 total revisions

  $ cd test-8
  $ hg pull ../test-7
  pulling from ../test-7
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 4 changesets with 2 changes to 3 files (+1 heads)
  (run 'hg heads' to see heads, 'hg merge' to merge)
  $ hg verify
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  4 files, 9 changesets, 7 total revisions
  $ cd ..