Mercurial > hg
view tests/test-casecollision-merge.t @ 34682:7e3001b74ab3
tersestatus: re-implement the functionality to terse the status
The previous terse status implementation was hacking around os.listdir() and was
flaky. There have been a lot of instances of mercurial buildbots failing
and google's internal builds failing because of the
hacky implementation of terse status. Even though I wrote the last
implementation but it was hard for me to find the reason for the flake.
The new implementation can be slower than the old one but is clean and easy to
understand.
In this we create a node object for each directory and create a tree
like structure starting from the root of the working copy. While building the
tree like structure we store some information on the nodes which will be helpful
for deciding later whether we can terse the dir or not.
Once the whole tree is build we traverse and built the list of files for each
status with required tersing.
There is no behaviour change as the old test, test-status-terse.t passes with
the new implementation.
Differential Revision: https://phab.mercurial-scm.org/D985
author | Pulkit Goyal <7895pulkit@gmail.com> |
---|---|
date | Fri, 06 Oct 2017 20:54:23 +0530 |
parents | 8e472f3b7c63 |
children | f4f07cc92a47 |
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#require icasefs ################################ test for branch merging ################################ test for rename awareness of case-folding collision check: (1) colliding file is one renamed from collided file: this is also case for issue3370. $ hg init branch_merge_renaming $ cd branch_merge_renaming $ echo a > a $ hg add a $ echo b > b $ hg add b $ hg commit -m '#0' $ hg tag -l A $ hg rename a tmp $ hg rename tmp A $ hg commit -m '#1' $ hg tag -l B $ hg update -q 0 $ touch x $ hg add x $ hg commit -m '#2' created new head $ hg tag -l C $ hg merge -q $ hg status -A M A R a C b C x $ hg update -q --clean 1 $ hg merge -q $ hg status -A M x C A C b $ hg commit -m '(D)' $ hg tag -l D additional test for issue3452: | this assumes the history below. | | (A) -- (C) -- (E) ------- | \ \ \ | \ \ \ | (B) -- (D) -- (F) -- (G) | | A: add file 'a' | B: rename from 'a' to 'A' | C: add 'x' (or operation other than modification of 'a') | D: merge C into B | E: modify 'a' | F: modify 'A' | G: merge E into F | | issue3452 occurs when (B) is recorded before (C) $ hg update -q --clean C $ echo "modify 'a' at (E)" > a $ echo "modify 'b' at (E)" > b $ hg commit -m '(E)' created new head $ hg tag -l E $ hg update -q --clean D $ echo "modify 'A' at (F)" > A $ hg commit -m '(F)' $ hg tag -l F $ hg merge -q --tool internal:other E $ hg status -A M A a M b C x $ cat A modify 'a' at (E) test also the case that (B) is recorded after (C), to prevent regression by changes in the future. to avoid unexpected (successful) behavior by filelog unification, target file is not 'a'/'A' but 'b'/'B' in this case. $ hg update -q --clean A $ hg rename b tmp $ hg rename tmp B $ hg commit -m '(B1)' created new head $ hg tag -l B1 $ hg merge -q C $ hg status -A M x C B C a $ hg commit -m '(D1)' $ hg tag -l D1 $ echo "modify 'B' at (F1)" > B $ hg commit -m '(F1)' $ hg tag -l F1 $ hg merge -q --tool internal:other E $ hg status -A M B b M a C x $ cat B modify 'b' at (E) $ cd .. (2) colliding file is not related to collided file $ hg init branch_merge_collding $ cd branch_merge_collding $ echo a > a $ hg add a $ hg commit -m '#0' $ hg remove a $ hg commit -m '#1' $ echo A > A $ hg add A $ hg commit -m '#2' $ hg update --clean 0 1 files updated, 0 files merged, 1 files removed, 0 files unresolved $ echo x > x $ hg add x $ hg commit -m '#3' created new head $ echo 'modified at #4' > a $ hg commit -m '#4' $ hg merge abort: case-folding collision between [aA] and [Aa] (re) [255] $ hg parents --template '{rev}\n' 4 $ hg status -A C a C x $ cat a modified at #4 $ hg update --clean 2 1 files updated, 0 files merged, 2 files removed, 0 files unresolved $ hg merge abort: case-folding collision between [aA] and [Aa] (re) [255] $ hg parents --template '{rev}\n' 2 $ hg status -A C A $ cat A A test for deletion awareness of case-folding collision check (issue3648): revision '#3' doesn't change 'a', so 'a' should be recognized as safely removed in merging between #2 and #3. $ hg update --clean 3 2 files updated, 0 files merged, 1 files removed, 0 files unresolved $ hg merge 2 1 files updated, 0 files merged, 1 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg status -A M A R a C x $ hg update --clean 2 1 files updated, 0 files merged, 1 files removed, 0 files unresolved $ hg merge 3 1 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg status -A M x C A $ cd .. Prepare for tests of directory case-folding collisions $ hg init directory-casing $ cd directory-casing $ touch 0 # test: file without directory $ mkdir 0a $ touch 0a/f $ mkdir aA $ touch aA/a $ hg ci -Aqm0 Directory/file case-folding collision: $ hg up -q null $ touch 00 # test: starts as '0' $ mkdir 000 # test: starts as '0' $ touch 000/f $ touch Aa # test: collision with 'aA/a' $ hg ci -Aqm1 $ hg merge 0 abort: case-folding collision between Aa and directory of aA/a [255] (note: no collision between 0 and 00 or 000/f) Directory case-folding collision: $ hg up -qC null $ hg --config extensions.purge= purge $ mkdir 0A0 $ touch 0A0/f # test: starts as '0a' $ mkdir Aa $ touch Aa/b # test: collision with 'aA/a' $ hg ci -Aqm2 $ hg merge 0 3 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ cd .. ################################ test for linear updates ################################ test for rename awareness of case-folding collision check: (1) colliding file is one renamed from collided file $ hg init linearupdate_renameaware_1 $ cd linearupdate_renameaware_1 $ echo a > a $ hg add a $ hg commit -m '#0' $ hg rename a tmp $ hg rename tmp A $ hg commit -m '#1' $ hg update 0 1 files updated, 0 files merged, 1 files removed, 0 files unresolved $ echo 'this is added line' >> a $ hg update 1 merging a and A to A 0 files updated, 1 files merged, 0 files removed, 0 files unresolved $ hg status -A M A $ cat A a this is added line $ cd .. (2) colliding file is not related to collided file $ hg init linearupdate_renameaware_2 $ cd linearupdate_renameaware_2 $ echo a > a $ hg add a $ hg commit -m '#0' $ hg remove a $ hg commit -m '#1' $ echo A > A $ hg add A $ hg commit -m '#2' $ hg update 0 1 files updated, 0 files merged, 1 files removed, 0 files unresolved $ hg parents --template '{rev}\n' 0 $ hg status -A C a $ cat A a $ hg up -qC 2 $ hg update --check 0 1 files updated, 0 files merged, 1 files removed, 0 files unresolved $ hg parents --template '{rev}\n' 0 $ hg status -A C a $ cat a a $ hg update --clean 2 1 files updated, 0 files merged, 1 files removed, 0 files unresolved $ hg parents --template '{rev}\n' 2 $ hg status -A C A $ cat A A $ cd .. (3) colliding file is not related to collided file: added in working dir $ hg init linearupdate_renameaware_3 $ cd linearupdate_renameaware_3 $ echo a > a $ hg add a $ hg commit -m '#0' $ hg rename a b $ hg commit -m '#1' $ hg update 0 1 files updated, 0 files merged, 1 files removed, 0 files unresolved $ echo B > B $ hg add B $ hg status A B $ hg update abort: case-folding collision between [bB] and [Bb] (re) [255] $ hg update --check abort: uncommitted changes [255] $ hg update --clean 1 files updated, 0 files merged, 1 files removed, 0 files unresolved $ hg parents --template '{rev}\n' 1 $ hg status -A C b $ cat b a $ cd ..