Test the EOL hook

  $ cat > $HGRCPATH <<EOF

  > [diff]

  > git = True

  > EOF

  $ hg init main

  $ cat > main/.hg/hgrc <<EOF

  > [extensions]

  > eol =

  > 

  > [hooks]

  > pretxnchangegroup = python:hgext.eol.hook

  > EOF

  $ hg clone main fork

  updating to branch default

  0 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ cd fork

Create repo

  $ cat > .hgeol <<EOF

  > [patterns]

  > mixed.txt = BIN

  > **.txt = native

  > EOF

  $ hg add .hgeol

  $ hg commit -m 'Commit .hgeol'

  $ printf "first\nsecond\nthird\n" > a.txt

  $ hg add a.txt

  $ hg commit -m 'LF a.txt'

  $ hg push ../main

  pushing to ../main

  searching for changes

  adding changesets

  adding manifests

  adding file changes

  added 2 changesets with 2 changes to 2 files

  $ printf "first\r\nsecond\r\nthird\n" > a.txt

  $ hg commit -m 'CRLF a.txt'

  $ hg push ../main

  pushing to ../main

  searching for changes

  adding changesets

  adding manifests

  adding file changes

  added 1 changesets with 1 changes to 1 files

  error: pretxnchangegroup hook failed: a.txt should not have CRLF line endings

  transaction abort!

  rollback completed

  abort: a.txt should not have CRLF line endings

  [255]

  $ printf "first\nsecond\nthird\n" > a.txt

  $ hg commit -m 'LF a.txt (fixed)'

  $ hg push ../main

  pushing to ../main

  searching for changes

  adding changesets

  adding manifests

  adding file changes

  added 2 changesets with 2 changes to 1 files