view tests/test-narrow-strip.t @ 38162:bdf344aea0ee

extensions: peek command table of disabled extensions without importing

With chg where demandimport disabled, and if disk cache not warm, it took
more than 5 seconds to get "unknown command" error when you typo a command
name. This is horrible UX.

The new implementation is less accurate than the original one as Python
can do anything at import time and cmdtable may be imported from another
module, but I think it's good enough.

Note that the new implementation has to parse .py files, which is slightly
slower than executing .pyc if demandimport is enabled.

#testcases flat tree

  $ . "$TESTDIR/narrow-library.sh"

#if tree
  $ cat << EOF >> $HGRCPATH
  > [experimental]
  > treemanifest = 1
  > EOF
#endif

create full repo

  $ hg init master
  $ cd master
  $ cat >> .hg/hgrc <<EOF
  > [narrow]
  > serveellipses=True
  > EOF

  $ mkdir inside
  $ echo inside > inside/f1
  $ mkdir outside
  $ echo outside > outside/f1
  $ hg ci -Aqm 'initial'

  $ echo modified > inside/f1
  $ hg ci -qm 'modify inside'

  $ hg co -q 0
  $ echo modified > outside/f1
  $ hg ci -qm 'modify outside'

  $ echo modified again >> outside/f1
  $ hg ci -qm 'modify outside again'

  $ cd ..

  $ hg clone --narrow ssh://user@dummy/master narrow --include inside
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 3 changesets with 2 changes to 1 files (+1 heads)
  new changesets *:* (glob)
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd narrow
  $ cat >> $HGRCPATH <<EOF
  > [extensions]
  > strip=
  > EOF

Can strip and recover changesets affecting only files within narrow spec

  $ hg co -r 'desc("modify inside")'
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ rm -f .hg/strip-backup/*-backup.hg
  $ hg strip .
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  saved backup bundle to $TESTTMP/narrow/.hg/strip-backup/*-backup.hg (glob)
  $ hg unbundle .hg/strip-backup/*-backup.hg
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files (+1 heads)
  new changesets * (glob)
  (run 'hg heads' to see heads, 'hg merge' to merge)

Can strip and recover changesets affecting files outside of narrow spec

  $ hg co -r 'desc("modify outside")'
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg log -G -T '{rev} {desc}\n'
  o  2 modify inside
  |
  | @  1 modify outside again
  |/
  o  0 initial
  
  $ hg debugdata -m 1
  inside/f1\x004d6a634d5ba06331a60c29ee0db8412490a54fcd (esc) (flat !)
  outside/f1\x0084ba604d54dee1f13310ce3d4ac2e8a36636691a (esc) (flat !)
  inside\x006a8bc41df94075d501f9740587a0c0e13c170dc5t (esc) (tree !)
  outside\x00255c2627ebdd3c7dcaa6945246f9b9f02bd45a09t (esc) (tree !)

  $ rm -f .hg/strip-backup/*-backup.hg
  $ hg strip .
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  saved backup bundle to $TESTTMP/narrow/.hg/strip-backup/*-backup.hg (glob)
  $ hg unbundle .hg/strip-backup/*-backup.hg
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 0 changes to 0 files (+1 heads)
  new changesets * (glob)
  (run 'hg heads' to see heads, 'hg merge' to merge)
  $ hg log -G -T '{rev} {desc}\n'
  o  2 modify outside again
  |
  | o  1 modify inside
  |/
  @  0 initial
  
Check that hash of file outside narrow spec got restored
  $ hg debugdata -m 2
  inside/f1\x004d6a634d5ba06331a60c29ee0db8412490a54fcd (esc) (flat !)
  outside/f1\x0084ba604d54dee1f13310ce3d4ac2e8a36636691a (esc) (flat !)
  inside\x006a8bc41df94075d501f9740587a0c0e13c170dc5t (esc) (tree !)
  outside\x00255c2627ebdd3c7dcaa6945246f9b9f02bd45a09t (esc) (tree !)

Also verify we can apply the bundle with 'hg pull':
  $ hg co -r 'desc("modify inside")'
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ rm .hg/strip-backup/*-backup.hg
  $ hg strip .
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  saved backup bundle to $TESTTMP/narrow/.hg/strip-backup/*-backup.hg (glob)
#if repobundlerepo
  $ hg pull .hg/strip-backup/*-backup.hg
  pulling from .hg/strip-backup/*-backup.hg (glob)
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files (+1 heads)
  new changesets * (glob)
  (run 'hg heads' to see heads, 'hg merge' to merge)

  $ rm .hg/strip-backup/*-backup.hg
  $ hg strip 0
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  saved backup bundle to $TESTTMP/narrow/.hg/strip-backup/*-backup.hg (glob)

  $ hg incoming .hg/strip-backup/*-backup.hg
  comparing with .hg/strip-backup/*-backup.hg (glob)
  changeset:   0:* (glob)
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     initial
  
  changeset:   1:9e48d953700d (flat !)
  changeset:   1:3888164bccf0 (tree !)
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     modify outside again
  
  changeset:   2:f505d5e96aa8 (flat !)
  changeset:   2:40b66f95a209 (tree !)
  tag:         tip
  parent:      0:a99f4d53924d (flat !)
  parent:      0:c2a5fabcca3c (tree !)
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     modify inside
  
  $ hg pull .hg/strip-backup/*-backup.hg
  pulling from .hg/strip-backup/*-backup.hg (glob)
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 3 changesets with 2 changes to 1 files (+1 heads)
  new changesets *:* (glob)
  (run 'hg heads' to see heads, 'hg merge' to merge)
#endif