requires: re-use vfs.tryread for simplicity
Avoids calling `set` twice or having to re-raise an exception and implements the routine with a single return expression.
#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
$ $NO_FALLBACK rhg files
unsupported feature: subrepos (.hgsub is present)
[252]
$ rhg files
a
$ rm .hgsub
The `:required` extension suboptions are correctly ignored
$ echo "[extensions]" >> $HGRCPATH
$ echo "blackbox:required = yes" >> $HGRCPATH
$ rhg files
a
$ echo "*:required = yes" >> $HGRCPATH
$ rhg files
a
We can ignore all extensions at once
$ echo "[extensions]" >> $HGRCPATH
$ echo "thisextensionbetternotexist=" >> $HGRCPATH
$ echo "thisextensionbetternotexisteither=" >> $HGRCPATH
$ $NO_FALLBACK rhg files
unsupported feature: extensions: thisextensionbetternotexist, thisextensionbetternotexisteither (consider adding them to 'rhg.ignored-extensions' config)
[252]
$ echo "[rhg]" >> $HGRCPATH
$ echo "ignored-extensions=*" >> $HGRCPATH
$ $NO_FALLBACK rhg files
a