annotate tests/test-largefiles-update.t @ 22288:4e2559841d6c

largefiles: update largefiles even if rebase is aborted by conflict

Before this patch, largefiles in the working directory aren't updated
correctly, if rebase is aborted by conflict. This prevents users from
viewing appropriate largefiles while resolving conflicts.

While rebase, largefiles in the working directory are updated only at
successful committing in the special code path of
"lfilesrepo.commit()".

To update largefiles even if rebase is aborted by conflict, this patch
centralizes the logic of updating largefiles in the working directory
into the "mergeupdate" wrapping "merge.update".


This is a temporary way to fix with less changes. For fundamental
resolution of this kind of problems in the future, largefiles in the
working directory should be updated with other (normal) files
simultaneously while "merge.update" execution: maybe by hooking
"applyupdates".

"Action list based updating" introduced by hooking "applyupdates" will
also improve performance of updating, because it automatically
decreases target files to be checked.


Just after this patch, there are some improper things in "Case 0" code
path of "lfilesrepo.commit()":

  - "updatelfiles" invocation is redundant for rebase
  - detailed comment doesn't meet to rebase behavior

These will be resolved after the subsequent patch for transplant,
because this code path is shared with transplant.


Even though replacing "merge.update" in rebase extension by "hg.merge"
can also avoid this problem, this patch chooses centralizing the logic
into "mergeupdate", because:

  - "merge.update" invocation in rebase extension can't be directly
    replaced by "hg.merge", because:

    - rebase requires some extra arguments, which "hg.merge" doesn't
      take (e.g. "ancestor")

    - rebase doesn't require statistics information forcibly displayed
      in "hg.merge"

  - introducing "mergeupdate" can resolve also problem of some other
    code paths directly using "merge.update"

    largefiles in the working directory aren't updated regardless of
    the result of commands below, before this patch:

    - backout (for revisions other than the parent revision of the
      working directory without "--merge")

    - graft

    - histedit (for revisions other than the parent of the working
      directory


When "partial" is specified, "merge.update" doesn't update dirstate
entries for standins, even though standins themselves are updated.

In this case, "normallookup" should be used to mark largefiles as
"possibly dirty" forcibly, because applying "normal" on lfdirstate
treats them as "clean" unexpectedly.

This is reason why "normallookup=partial" is specified for
"lfcommands.updatelfiles".


This patch doesn't test "hg rebase --continue", because it doesn't
work correctly if largefiles in the working directory are modified
manually while resolving conflicts. This will be fixed in the next
step of refactoring for largefiles.

All changes of tests/*.t files other than test-largefiles-update.t in
this patch come from invoking "updatelfiles" not after but before
statistics output of "hg.update", "hg.clean" and "hg.merge".

This file focuses mainly on updating largefiles in the working
directory (and ".hg/largefiles/dirstate")

  $ cat >> $HGRCPATH <<EOF
  > [ui]
  > merge = internal:fail
  > [extensions]
  > largefiles =
  > EOF

  $ hg init repo
  $ cd repo

  $ echo large1 > large1
  $ echo large2 > large2
  $ hg add --large large1 large2
  $ echo normal1 > normal1
  $ hg add normal1
  $ hg commit -m '#0'
  $ echo 'large1 in #1' > large1
  $ echo 'normal1 in #1' > normal1
  $ hg commit -m '#1'
  $ hg update -q -C 0
  $ echo 'large2 in #2' > large2
  $ hg commit -m '#2'
  created new head

Test that "hg merge" updates largefiles from "other" correctly

(getting largefiles from "other" normally)

  $ hg status -A large1
  C large1
  $ cat large1
  large1
  $ cat .hglf/large1
  4669e532d5b2c093a78eca010077e708a071bb64
  $ hg merge --config debug.dirstate.delaywrite=2
  getting changed largefiles
  1 largefiles updated, 0 removed
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg status -A large1
  M large1
  $ cat large1
  large1 in #1
  $ cat .hglf/large1
  58e24f733a964da346e2407a2bee99d9001184f5
  $ hg diff -c 1 --nodates .hglf/large1 | grep '^[+-][0-9a-z]'
  -4669e532d5b2c093a78eca010077e708a071bb64
  +58e24f733a964da346e2407a2bee99d9001184f5

(getting largefiles from "other" via conflict prompt)

  $ hg update -q -C 2
  $ echo 'large1 in #3' > large1
  $ echo 'normal1 in #3' > normal1
  $ hg commit -m '#3'
  $ cat .hglf/large1
  e5bb990443d6a92aaf7223813720f7566c9dd05b
  $ hg merge --config debug.dirstate.delaywrite=2 --config ui.interactive=True <<EOF
  > o
  > EOF
  largefile large1 has a merge conflict
  ancestor was 4669e532d5b2c093a78eca010077e708a071bb64
  keep (l)ocal e5bb990443d6a92aaf7223813720f7566c9dd05b or
  take (o)ther 58e24f733a964da346e2407a2bee99d9001184f5? merging normal1
  warning: conflicts during merge.
  merging normal1 incomplete! (edit conflicts, then use 'hg resolve --mark')
  getting changed largefiles
  1 largefiles updated, 0 removed
  0 files updated, 1 files merged, 0 files removed, 1 files unresolved
  use 'hg resolve' to retry unresolved file merges or 'hg update -C .' to abandon
  [1]
  $ hg status -A large1
  M large1
  $ cat large1
  large1 in #1
  $ cat .hglf/large1
  58e24f733a964da346e2407a2bee99d9001184f5

Test that "hg revert -r REV" updates largefiles from "REV" correctly

  $ hg update -q -C 3
  $ hg status -A large1
  C large1
  $ cat large1
  large1 in #3
  $ cat .hglf/large1
  e5bb990443d6a92aaf7223813720f7566c9dd05b
  $ hg diff -c 1 --nodates .hglf/large1 | grep '^[+-][0-9a-z]'
  -4669e532d5b2c093a78eca010077e708a071bb64
  +58e24f733a964da346e2407a2bee99d9001184f5
  $ hg revert --no-backup -r 1 --config debug.dirstate.delaywrite=2 large1
  $ hg status -A large1
  M large1
  $ cat large1
  large1 in #1
  $ cat .hglf/large1
  58e24f733a964da346e2407a2bee99d9001184f5

Test that "hg rollback" restores status of largefiles correctly

  $ hg update -C -q
  $ hg remove large1
  $ test -f .hglf/large1
  [1]
  $ hg forget large2
  $ test -f .hglf/large2
  [1]
  $ echo largeX > largeX
  $ hg add --large largeX
  $ cat .hglf/largeX
  
  $ hg commit -m 'will be rollback-ed soon'
  $ echo largeY > largeY
  $ hg add --large largeY
  $ hg status -A large1
  large1: No such file or directory
  $ hg status -A large2
  ? large2
  $ hg status -A largeX
  C largeX
  $ hg status -A largeY
  A largeY
  $ hg rollback
  repository tip rolled back to revision 3 (undo commit)
  working directory now based on revision 3
  $ hg status -A large1
  R large1
  $ test -f .hglf/large1
  [1]
  $ hg status -A large2
  R large2
  $ test -f .hglf/large2
  [1]
  $ hg status -A largeX
  A largeX
  $ cat .hglf/largeX
  
  $ hg status -A largeY
  ? largeY
  $ test -f .hglf/largeY
  [1]

Test that "hg rollback" restores standins correctly

  $ hg commit -m 'will be rollback-ed soon'
  $ hg update -q -C 2
  $ cat large1
  large1
  $ cat .hglf/large1
  4669e532d5b2c093a78eca010077e708a071bb64
  $ cat large2
  large2 in #2
  $ cat .hglf/large2
  3cfce6277e7668985707b6887ce56f9f62f6ccd9

  $ hg rollback -q -f
  $ cat large1
  large1
  $ cat .hglf/large1
  4669e532d5b2c093a78eca010077e708a071bb64
  $ cat large2
  large2 in #2
  $ cat .hglf/large2
  3cfce6277e7668985707b6887ce56f9f62f6ccd9

(rollback the parent of the working directory, when the parent of it
is not branch-tip)

  $ hg update -q -C 1
  $ cat .hglf/large1
  58e24f733a964da346e2407a2bee99d9001184f5
  $ cat .hglf/large2
  1deebade43c8c498a3c8daddac0244dc55d1331d

  $ echo normalX > normalX
  $ hg add normalX
  $ hg commit -m 'will be rollback-ed soon'
  $ hg rollback -q

  $ cat .hglf/large1
  58e24f733a964da346e2407a2bee99d9001184f5
  $ cat .hglf/large2
  1deebade43c8c498a3c8daddac0244dc55d1331d

Test that "hg status" shows status of largefiles correctly just after
automated commit like rebase/transplant

  $ cat >> .hg/hgrc <<EOF
  > [extensions]
  > rebase =
  > strip =
  > transplant =
  > EOF
  $ hg update -q -C 1
  $ hg remove large1
  $ echo largeX > largeX
  $ hg add --large largeX
  $ hg commit -m '#4'

  $ hg rebase -s 1 -d 2 --keep
  $ hg status -A large1
  large1: No such file or directory
  $ hg status -A largeX
  C largeX
  $ hg strip -q 5

  $ hg update -q -C 2
  $ hg transplant -q 1 4
  $ hg status -A large1
  large1: No such file or directory
  $ hg status -A largeX
  C largeX
  $ hg strip -q 5

  $ hg update -q -C 2
  $ hg transplant -q --merge 1 --merge 4
  $ hg status -A large1
  large1: No such file or directory
  $ hg status -A largeX
  C largeX
  $ hg strip -q 5

Test that linear merge can detect modification (and conflict) correctly

(linear merge without conflict)

  $ echo 'large2 for linear merge (no conflict)' > large2
  $ hg update 3 --config debug.dirstate.delaywrite=2
  getting changed largefiles
  1 largefiles updated, 0 removed
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg status -A large2
  M large2
  $ cat large2
  large2 for linear merge (no conflict)
  $ cat .hglf/large2
  9c4bf8f1b33536d6e5f89447e10620cfe52ea710

(linear merge with conflict, choosing "other")

  $ hg update -q -C 2
  $ echo 'large1 for linear merge (conflict)' > large1
  $ hg update 3 --config ui.interactive=True <<EOF
  > o
  > EOF
  largefile large1 has a merge conflict
  ancestor was 4669e532d5b2c093a78eca010077e708a071bb64
  keep (l)ocal ba94c2efe5b7c5e0af8d189295ce00553b0612b7 or
  take (o)ther e5bb990443d6a92aaf7223813720f7566c9dd05b? getting changed largefiles
  1 largefiles updated, 0 removed
  1 files updated, 1 files merged, 0 files removed, 0 files unresolved
  $ hg status -A large1
  C large1
  $ cat large1
  large1 in #3
  $ cat .hglf/large1
  e5bb990443d6a92aaf7223813720f7566c9dd05b

(linear merge with conflict, choosing "local")

  $ hg update -q -C 2
  $ echo 'large1 for linear merge (conflict)' > large1
  $ hg update 3 --config debug.dirstate.delaywrite=2
  largefile large1 has a merge conflict
  ancestor was 4669e532d5b2c093a78eca010077e708a071bb64
  keep (l)ocal ba94c2efe5b7c5e0af8d189295ce00553b0612b7 or
  take (o)ther e5bb990443d6a92aaf7223813720f7566c9dd05b? l
  1 files updated, 1 files merged, 0 files removed, 0 files unresolved
  $ hg status -A large1
  M large1
  $ cat large1
  large1 for linear merge (conflict)
  $ cat .hglf/large1
  ba94c2efe5b7c5e0af8d189295ce00553b0612b7

Test a linear merge to a revision containing same-name normal file

  $ hg update -q -C 3
  $ hg remove large2
  $ echo 'large2 as normal file' > large2
  $ hg add large2
  $ echo 'large3 as normal file' > large3
  $ hg add large3
  $ hg commit -m '#5'
  $ hg manifest
  .hglf/large1
  large2
  large3
  normal1

(modified largefile is already switched to normal)

  $ hg update -q -C 2
  $ echo 'modified large2 for linear merge' > large2
  $ hg update -q 5
  local changed .hglf/large2 which remote deleted
  use (c)hanged version or (d)elete? c
  remote turned local largefile large2 into a normal file
  keep (l)argefile or use (n)ormal file? l
  $ hg debugdirstate --nodates | grep large2
  a   0         -1 .hglf/large2
  r   0          0 large2
  $ hg status -A large2
  A large2
  $ cat large2
  modified large2 for linear merge

(added largefile is already committed as normal)

  $ hg update -q -C 2
  $ echo 'large3 as large file for linear merge' > large3
  $ hg add --large large3
  $ hg update -q 5
  remote turned local largefile large3 into a normal file
  keep (l)argefile or use (n)ormal file? l
  $ hg debugdirstate --nodates | grep large3
  a   0         -1 .hglf/large3
  r   0          0 large3
  $ hg status -A large3
  A large3
  $ cat large3
  large3 as large file for linear merge
  $ rm -f large3 .hglf/large3

Test that the internal linear merging works correctly
(both heads are stripped to keep pairing of revision number and commit log)

  $ hg update -q -C 2
  $ hg strip 3 4
  saved backup bundle to $TESTTMP/repo/.hg/strip-backup/9530e27857f7-backup.hg (glob)
  $ mv .hg/strip-backup/9530e27857f7-backup.hg $TESTTMP

(internal linear merging at "hg pull --update")

  $ echo 'large1 for linear merge (conflict)' > large1
  $ echo 'large2 for linear merge (conflict with normal file)' > large2
  $ hg pull --update --config debug.dirstate.delaywrite=2 $TESTTMP/9530e27857f7-backup.hg
  pulling from $TESTTMP/9530e27857f7-backup.hg (glob)
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 3 changesets with 5 changes to 5 files
  local changed .hglf/large2 which remote deleted
  use (c)hanged version or (d)elete? c
  remote turned local largefile large2 into a normal file
  keep (l)argefile or use (n)ormal file? l
  largefile large1 has a merge conflict
  ancestor was 4669e532d5b2c093a78eca010077e708a071bb64
  keep (l)ocal ba94c2efe5b7c5e0af8d189295ce00553b0612b7 or
  take (o)ther e5bb990443d6a92aaf7223813720f7566c9dd05b? l
  2 files updated, 1 files merged, 0 files removed, 0 files unresolved

  $ hg status -A large1
  M large1
  $ cat large1
  large1 for linear merge (conflict)
  $ cat .hglf/large1
  ba94c2efe5b7c5e0af8d189295ce00553b0612b7
  $ hg status -A large2
  A large2
  $ cat large2
  large2 for linear merge (conflict with normal file)
  $ cat .hglf/large2
  d7591fe9be0f6227d90bddf3e4f52ff41fc1f544

(internal linear merging at "hg unbundle --update")

  $ hg update -q -C 2
  $ hg rollback -q

  $ echo 'large1 for linear merge (conflict)' > large1
  $ echo 'large2 for linear merge (conflict with normal file)' > large2
  $ hg unbundle --update --config debug.dirstate.delaywrite=2 $TESTTMP/9530e27857f7-backup.hg
  adding changesets
  adding manifests
  adding file changes
  added 3 changesets with 5 changes to 5 files
  local changed .hglf/large2 which remote deleted
  use (c)hanged version or (d)elete? c
  remote turned local largefile large2 into a normal file
  keep (l)argefile or use (n)ormal file? l
  largefile large1 has a merge conflict
  ancestor was 4669e532d5b2c093a78eca010077e708a071bb64
  keep (l)ocal ba94c2efe5b7c5e0af8d189295ce00553b0612b7 or
  take (o)ther e5bb990443d6a92aaf7223813720f7566c9dd05b? l
  2 files updated, 1 files merged, 0 files removed, 0 files unresolved

  $ hg status -A large1
  M large1
  $ cat large1
  large1 for linear merge (conflict)
  $ cat .hglf/large1
  ba94c2efe5b7c5e0af8d189295ce00553b0612b7
  $ hg status -A large2
  A large2
  $ cat large2
  large2 for linear merge (conflict with normal file)
  $ cat .hglf/large2
  d7591fe9be0f6227d90bddf3e4f52ff41fc1f544

(internal linear merging in subrepo at "hg update")

  $ cd ..
  $ hg init subparent
  $ cd subparent

  $ hg clone -q -u 2 ../repo sub
  $ cat > .hgsub <<EOF
  > sub = sub
  > EOF
  $ hg add .hgsub
  $ hg commit -m '#0@parent'
  $ cat .hgsubstate
  f74e50bd9e5594b7cf1e6c5cbab86ddd25f3ca2f sub
  $ hg -R sub update -q
  $ hg commit -m '#1@parent'
  $ cat .hgsubstate
  d65e59e952a9638e2ce863b41a420ca723dd3e8d sub
  $ hg update -q 0

  $ echo 'large1 for linear merge (conflict)' > sub/large1
  $ echo 'large2 for linear merge (conflict with normal file)' > sub/large2
  $ hg update --config ui.interactive=True --config debug.dirstate.delaywrite=2 <<EOF
  > m
  > r
  > c
  > l
  > l
  > EOF
   subrepository sub diverged (local revision: f74e50bd9e55, remote revision: d65e59e952a9)
  (M)erge, keep (l)ocal or keep (r)emote?  subrepository sources for sub differ (in checked out version)
  use (l)ocal source (f74e50bd9e55) or (r)emote source (d65e59e952a9)?
   local changed .hglf/large2 which remote deleted
  use (c)hanged version or (d)elete? remote turned local largefile large2 into a normal file
  keep (l)argefile or use (n)ormal file? largefile large1 has a merge conflict
  ancestor was 4669e532d5b2c093a78eca010077e708a071bb64
  keep (l)ocal ba94c2efe5b7c5e0af8d189295ce00553b0612b7 or
  take (o)ther e5bb990443d6a92aaf7223813720f7566c9dd05b? 2 files updated, 1 files merged, 0 files removed, 0 files unresolved
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ hg -R sub status -A sub/large1
  M sub/large1
  $ cat sub/large1
  large1 for linear merge (conflict)
  $ cat sub/.hglf/large1
  ba94c2efe5b7c5e0af8d189295ce00553b0612b7
  $ hg -R sub status -A sub/large2
  A sub/large2
  $ cat sub/large2
  large2 for linear merge (conflict with normal file)
  $ cat sub/.hglf/large2
  d7591fe9be0f6227d90bddf3e4f52ff41fc1f544

  $ cd ..
  $ cd repo

Test that rebase updates largefiles in the working directory even if
it is aborted by conflict.

  $ hg update -q -C 3
  $ cat .hglf/large1
  e5bb990443d6a92aaf7223813720f7566c9dd05b
  $ cat large1
  large1 in #3
  $ hg rebase -s 1 -d 3 --keep --config ui.interactive=True <<EOF
  > o
  > EOF
  largefile large1 has a merge conflict
  ancestor was 4669e532d5b2c093a78eca010077e708a071bb64
  keep (l)ocal e5bb990443d6a92aaf7223813720f7566c9dd05b or
  take (o)ther 58e24f733a964da346e2407a2bee99d9001184f5? merging normal1
  warning: conflicts during merge.
  merging normal1 incomplete! (edit conflicts, then use 'hg resolve --mark')
  unresolved conflicts (see hg resolve, then hg rebase --continue)
  [1]
  $ cat .hglf/large1
  58e24f733a964da346e2407a2bee99d9001184f5
  $ cat large1
  large1 in #1

  $ hg rebase -q --abort
  rebase aborted

  $ cd ..