#require rhg

  $ NO_FALLBACK="env RHG_ON_UNSUPPORTED=abort"

Unimplemented command

  $ $NO_FALLBACK rhg unimplemented-command

  unsupported feature: error: Found argument 'unimplemented-command' which wasn't expected, or isn't valid in this context

  USAGE:

      rhg [OPTIONS] <SUBCOMMAND>

  For more information try --help

  [252]

  $ rhg unimplemented-command --config rhg.on-unsupported=abort-silent

  [252]

Finding root

  $ $NO_FALLBACK rhg root

  abort: no repository found in '$TESTTMP' (.hg not found)!

  [255]

  $ hg init repository

  $ cd repository

  $ $NO_FALLBACK rhg root

  $TESTTMP/repository

Reading and setting configuration

  $ echo "[ui]" >> $HGRCPATH

  $ echo "username = user1" >> $HGRCPATH

  $ $NO_FALLBACK rhg config ui.username

  user1

  $ echo "[ui]" >> .hg/hgrc

  $ echo "username = user2" >> .hg/hgrc

  $ $NO_FALLBACK rhg config ui.username

  user2

  $ $NO_FALLBACK rhg --config ui.username=user3 config ui.username

  user3

Unwritable file descriptor

  $ $NO_FALLBACK rhg root > /dev/full

  abort: No space left on device (os error 28)

  [255]

Deleted repository

  $ rm -rf `pwd`

  $ $NO_FALLBACK rhg root

  abort: error getting current working directory: $ENOENT$

  [255]

Listing tracked files

  $ cd $TESTTMP

  $ hg init repository

  $ cd repository

  $ for i in 1 2 3; do

  >   echo $i >> file$i

  >   hg add file$i

  > done

  > hg commit -m "commit $i" -q

Listing tracked files from root

  $ $NO_FALLBACK rhg files

  file1

  file2

  file3

Listing tracked files from subdirectory

  $ mkdir -p path/to/directory

  $ cd path/to/directory

  $ $NO_FALLBACK rhg files

  ../../../file1

  ../../../file2

  ../../../file3

Listing tracked files through broken pipe

  $ $NO_FALLBACK rhg files | head -n 1

  ../../../file1

Debuging data in inline index

  $ cd $TESTTMP

  $ rm -rf repository

  $ hg init repository

  $ cd repository

  $ for i in 1 2 3 4 5 6; do

  >   echo $i >> file-$i

  >   hg add file-$i

  >   hg commit -m "Commit $i" -q

  > done

  $ $NO_FALLBACK rhg debugdata -c 2

  8d0267cb034247ebfa5ee58ce59e22e57a492297

  test

  0 0

  file-3

  Commit 3 (no-eol)

  $ $NO_FALLBACK rhg debugdata -m 2

  file-1\x00b8e02f6433738021a065f94175c7cd23db5f05be (esc)

  file-2\x005d9299349fc01ddd25d0070d149b124d8f10411e (esc)

  file-3\x002661d26c649684b482d10f91960cc3db683c38b4 (esc)

Debuging with full node id

  $ $NO_FALLBACK rhg debugdata -c `hg log -r 0 -T '{node}'`

  d1d1c679d3053e8926061b6f45ca52009f011e3f

  test

  0 0

  file-1

  Commit 1 (no-eol)

Specifying revisions by changeset ID

  $ hg log -T '{node}\n'

  c6ad58c44207b6ff8a4fbbca7045a5edaa7e908b

  d654274993d0149eecc3cc03214f598320211900

  f646af7e96481d3a5470b695cf30ad8e3ab6c575

  cf8b83f14ead62b374b6e91a0e9303b85dfd9ed7

  91c6f6e73e39318534dc415ea4e8a09c99cd74d6

  6ae9681c6d30389694d8701faf24b583cf3ccafe

  $ $NO_FALLBACK rhg files -r cf8b83

  file-1

  file-2

  file-3

  $ $NO_FALLBACK rhg cat -r cf8b83 file-2

  2

  $ $NO_FALLBACK rhg cat --rev cf8b83 file-2

  2

  $ $NO_FALLBACK rhg cat -r c file-2

  abort: ambiguous revision identifier: c

  [255]

  $ $NO_FALLBACK rhg cat -r d file-2

  2

  $ $NO_FALLBACK rhg cat -r 0000 file-2

  file-2: no such file in rev 000000000000

  [1]

Cat files

  $ cd $TESTTMP

  $ rm -rf repository

  $ hg init repository

  $ cd repository

  $ echo "original content" > original

  $ hg add original

  $ hg commit -m "add original" original

Without `--rev`

  $ $NO_FALLBACK rhg cat original

  original content

With `--rev`

  $ $NO_FALLBACK rhg cat -r 0 original

  original content

Cat copied file should not display copy metadata

  $ hg copy original copy_of_original

  $ hg commit -m "add copy of original"

  $ $NO_FALLBACK rhg cat original

  original content

  $ $NO_FALLBACK rhg cat -r 1 copy_of_original

  original content

Fallback to Python

  $ $NO_FALLBACK rhg cat original --exclude="*.rs"

  unsupported feature: error: Found argument '--exclude' which wasn't expected, or isn't valid in this context

  USAGE:

      rhg cat [OPTIONS] <FILE>...

  For more information try --help

  [252]

  $ rhg cat original --exclude="*.rs"

  original content

  $ (unset RHG_FALLBACK_EXECUTABLE; rhg cat original --exclude="*.rs")

  abort: 'rhg.on-unsupported=fallback' without 'rhg.fallback-executable' set.

  [255]

  $ (unset RHG_FALLBACK_EXECUTABLE; rhg cat original)

  original content

  $ rhg cat original --exclude="*.rs" --config rhg.fallback-executable=false

  [1]

  $ rhg cat original --exclude="*.rs" --config rhg.fallback-executable=hg-non-existent

  abort: invalid fallback 'hg-non-existent': cannot find binary path

  [253]

  $ rhg cat original --exclude="*.rs" --config rhg.fallback-executable=rhg

  Blocking recursive fallback. The 'rhg.fallback-executable = rhg' config points to `rhg` itself.

  unsupported feature: error: Found argument '--exclude' which wasn't expected, or isn't valid in this context

  USAGE:

      rhg cat [OPTIONS] <FILE>...

  For more information try --help

  [252]

Fallback with shell path segments

  $ $NO_FALLBACK rhg cat .

  unsupported feature: `..` or `.` path segment

  [252]

  $ $NO_FALLBACK rhg cat ..

  unsupported feature: `..` or `.` path segment

  [252]

  $ $NO_FALLBACK rhg cat ../..

  unsupported feature: `..` or `.` path segment

  [252]

Fallback with filesets

  $ $NO_FALLBACK rhg cat "set:c or b"

  unsupported feature: fileset

  [252]

Fallback with generic hooks

  $ $NO_FALLBACK rhg cat original --config hooks.pre-cat=something

  unsupported feature: pre-cat hook defined

  [252]

  $ $NO_FALLBACK rhg cat original --config hooks.post-cat=something

  unsupported feature: post-cat hook defined

  [252]

  $ $NO_FALLBACK rhg cat original --config hooks.fail-cat=something

  unsupported feature: fail-cat hook defined

  [252]

Fallback with [defaults]

  $ $NO_FALLBACK rhg cat original --config "defaults.cat=-r null"

  unsupported feature: `defaults` config set

  [252]

Requirements

  $ $NO_FALLBACK rhg debugrequirements

  dotencode

  fncache

  generaldelta

  persistent-nodemap

  revlog-compression-zstd (zstd !)

  revlogv1

  share-safe

  sparserevlog

  store

  $ echo indoor-pool >> .hg/requires

  $ $NO_FALLBACK rhg files

  unsupported feature: repository requires feature unknown to this Mercurial: indoor-pool

  [252]

  $ $NO_FALLBACK rhg cat -r 1 copy_of_original

  unsupported feature: repository requires feature unknown to this Mercurial: indoor-pool

  [252]

  $ $NO_FALLBACK rhg debugrequirements

  unsupported feature: repository requires feature unknown to this Mercurial: indoor-pool

  [252]

  $ echo -e '\xFF' >> .hg/requires

  $ $NO_FALLBACK rhg debugrequirements

  abort: parse error in 'requires' file

  [255]

Persistent nodemap

  $ cd $TESTTMP

  $ rm -rf repository

  $ hg --config format.use-persistent-nodemap=no init repository

  $ cd repository

  $ $NO_FALLBACK rhg debugrequirements | grep nodemap

  [1]

  $ hg debugbuilddag .+5000 --overwritten-file --config "storage.revlog.nodemap.mode=warn"

  $ hg id -r tip

  c3ae8dec9fad tip

  $ ls .hg/store/00changelog*

  .hg/store/00changelog.d

  .hg/store/00changelog.i

  $ $NO_FALLBACK rhg files -r c3ae8dec9fad

  of

  $ cd $TESTTMP

  $ rm -rf repository

  $ hg --config format.use-persistent-nodemap=True init repository

  $ cd repository

  $ $NO_FALLBACK rhg debugrequirements | grep nodemap

  persistent-nodemap

  $ hg debugbuilddag .+5000 --overwritten-file --config "storage.revlog.nodemap.mode=warn"

  $ hg id -r tip

  c3ae8dec9fad tip

  $ ls .hg/store/00changelog*

  .hg/store/00changelog-*.nd (glob)

  .hg/store/00changelog.d

  .hg/store/00changelog.i

  .hg/store/00changelog.n

Specifying revisions by changeset ID

  $ $NO_FALLBACK rhg files -r c3ae8dec9fad

  of

  $ $NO_FALLBACK rhg cat -r c3ae8dec9fad of

  r5000

Crate a shared repository

  $ echo "[extensions]"      >> $HGRCPATH

  $ echo "share = "          >> $HGRCPATH

  $ cd $TESTTMP

  $ hg init repo1

  $ echo a > repo1/a

  $ hg -R repo1 commit -A -m'init'

  adding a

  $ hg share repo1 repo2

  updating working directory

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

And check that basic rhg commands work with sharing

  $ $NO_FALLBACK rhg files -R repo2

  repo2/a

  $ $NO_FALLBACK rhg -R repo2 cat -r 0 repo2/a

  a

Same with relative sharing

  $ hg share repo2 repo3 --relative

  updating working directory

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

  $ $NO_FALLBACK rhg files -R repo3

  repo3/a

  $ $NO_FALLBACK rhg -R repo3 cat -r 0 repo3/a

  a

Same with share-safe

  $ echo "[format]"         >> $HGRCPATH

  $ echo "use-share-safe = True" >> $HGRCPATH

  $ cd $TESTTMP

  $ hg init repo4

  $ cd repo4

  $ echo a > a

  $ hg commit -A -m'init'

  adding a

  $ cd ..

  $ hg share repo4 repo5

  updating working directory

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

And check that basic rhg commands work with sharing

  $ cd repo5

  $ $NO_FALLBACK rhg files

  a

  $ $NO_FALLBACK rhg cat -r 0 a

  a

The blackbox extension is supported

  $ echo "[extensions]" >> $HGRCPATH

  $ echo "blackbox =" >> $HGRCPATH

  $ echo "[blackbox]" >> $HGRCPATH

  $ echo "maxsize = 1" >> $HGRCPATH

  $ $NO_FALLBACK rhg files > /dev/null

  $ cat .hg/blackbox.log

  ????-??-?? ??:??:??.??? * @d3873e73d99ef67873dac33fbcc66268d5d2b6f4 (*)> (rust) files exited 0 after * seconds (glob)

  $ cat .hg/blackbox.log.1

  ????-??-?? ??:??:??.??? * @d3873e73d99ef67873dac33fbcc66268d5d2b6f4 (*)> (rust) files (glob)

Subrepos are not supported

  $ touch .hgsub