test sparse

  $ hg init myrepo

  $ cd myrepo

  $ cat >> $HGRCPATH <<EOF

  > [extensions]

  > sparse=

  > purge=

  > strip=

  > rebase=

  > EOF

  $ echo a > index.html

  $ echo x > data.py

  $ echo z > readme.txt

  $ cat > base.sparse <<EOF

  > [include]

  > *.sparse

  > EOF

  $ hg ci -Aqm 'initial'

  $ cat > webpage.sparse <<EOF

  > %include base.sparse

  > [include]

  > *.html

  > EOF

  $ hg ci -Aqm 'initial'

Import a rules file against a 'blank' sparse profile

  $ cat > $TESTTMP/rules_to_import <<EOF

  > [include]

  > *.py

  > EOF

  $ hg debugsparse --import-rules $TESTTMP/rules_to_import

  $ ls -A

  .hg

  data.py

  $ hg debugsparse --reset

  $ rm .hg/sparse

  $ cat > $TESTTMP/rules_to_import <<EOF

  > %include base.sparse

  > [include]

  > *.py

  > EOF

  $ hg debugsparse --import-rules $TESTTMP/rules_to_import

  $ ls -A

  .hg

  base.sparse

  data.py

  webpage.sparse

  $ hg debugsparse --reset

  $ rm .hg/sparse

Start against an existing profile; rules *already active* should be ignored

  $ hg debugsparse --enable-profile webpage.sparse

  $ hg debugsparse --include *.py

  $ cat > $TESTTMP/rules_to_import <<EOF

  > %include base.sparse

  > [include]

  > *.html

  > *.txt

  > [exclude]

  > *.py

  > EOF

  $ hg debugsparse --import-rules $TESTTMP/rules_to_import

  $ ls -A

  .hg

  base.sparse

  index.html

  readme.txt

  webpage.sparse

  $ cat .hg/sparse

  %include webpage.sparse

  [include]

  *.py

  *.txt

  [exclude]

  *.py

  $ hg debugsparse --reset

  $ rm .hg/sparse

Same tests, with -Tjson enabled to output summaries

  $ cat > $TESTTMP/rules_to_import <<EOF

  > [include]

  > *.py

  > EOF

  $ hg debugsparse --import-rules $TESTTMP/rules_to_import -Tjson

  [

   {

    "exclude_rules_added": 0,

    "files_added": 0,

    "files_conflicting": 0,

    "files_dropped": 4,

    "include_rules_added": 1,

    "profiles_added": 0

   }

  ]

  $ hg debugsparse --reset

  $ rm .hg/sparse

  $ cat > $TESTTMP/rules_to_import <<EOF

  > %include base.sparse

  > [include]

  > *.py

  > EOF

  $ hg debugsparse --import-rules $TESTTMP/rules_to_import -Tjson

  [

   {

    "exclude_rules_added": 0,

    "files_added": 0,

    "files_conflicting": 0,

    "files_dropped": 2,

    "include_rules_added": 1,

    "profiles_added": 1

   }

  ]

  $ hg debugsparse --reset

  $ rm .hg/sparse

  $ hg debugsparse --enable-profile webpage.sparse

  $ hg debugsparse --include *.py

  $ cat > $TESTTMP/rules_to_import <<EOF

  > %include base.sparse

  > [include]

  > *.html

  > *.txt

  > [exclude]

  > *.py

  > EOF

  $ hg debugsparse --import-rules $TESTTMP/rules_to_import -Tjson

  [

   {

    "exclude_rules_added": 1,

    "files_added": 1,

    "files_conflicting": 0,

    "files_dropped": 1,

    "include_rules_added": 1,

    "profiles_added": 0

   }

  ]

If importing results in no new rules being added, no refresh should take place!

  $ cat > $TESTTMP/trap_sparse_refresh.py <<EOF

  > from mercurial import error, sparse

  > def extsetup(ui):

  >     def abort_refresh(*args, **kwargs):

  >         raise error.Abort(b'sparse._refresh called!')

  >     sparse.refreshwdir = abort_refresh

  > EOF

  $ cat >> $HGRCPATH <<EOF

  > [extensions]

  > trap_sparse_refresh=$TESTTMP/trap_sparse_refresh.py

  > EOF

  $ cat > $TESTTMP/rules_to_import <<EOF

  > [include]

  > *.py

  > EOF

  $ hg debugsparse --import-rules $TESTTMP/rules_to_import

If an exception is raised during refresh, restore the existing rules again.

  $ cat > $TESTTMP/rules_to_import <<EOF

  > [exclude]

  > *.html

  > EOF

  $ hg debugsparse --import-rules $TESTTMP/rules_to_import

  abort: sparse._refresh called!

  [255]

  $ cat .hg/sparse

  %include webpage.sparse

  [include]

  *.py

  *.txt

  [exclude]

  *.py