tests/test-config.t

pycompat: use os.fsencode() to re-encode sys.argv

Historically, the previous code made sense, as Py_EncodeLocale() and
fs.fsencode() could possibly use different encodings. However, this is not the
case anymore for Python 3.2, which uses the locale encoding as the filesystem
encoding (this is not true for later Python versions, but see below). See
https://vstinner.github.io/painful-history-python-filesystem-encoding.html for
a source and more background information.

Using os.fsencode() is safer, as the documentation for sys.argv says that it can
be used to get the original bytes. When doing further changes, the Python
developers will take care that this continues to work.

One concrete case where os.fsencode() is more correct is when enabling Python's
UTF-8 mode. Py_DecodeLocale() will use UTF-8 in this case. Our previous code
would have encoded it using the locale encoding (which might be different),
whereas os.fsencode() will encode it with UTF-8.

Since we don’t claim to support the UTF-8 mode, this is not really a bug and the
patch can go to the default branch. It might be a good idea to not commit this
to the stable branch, as it could in theory introduce regressions.

hide outer repo
  $ hg init

Invalid syntax: no value

  $ cat > .hg/hgrc << EOF
  > novaluekey
  > EOF
  $ hg showconfig
  hg: parse error at $TESTTMP/.hg/hgrc:1: novaluekey
  [255]

Invalid syntax: no key

  $ cat > .hg/hgrc << EOF
  > =nokeyvalue
  > EOF
  $ hg showconfig
  hg: parse error at $TESTTMP/.hg/hgrc:1: =nokeyvalue
  [255]

Test hint about invalid syntax from leading white space

  $ cat > .hg/hgrc << EOF
  >  key=value
  > EOF
  $ hg showconfig
  hg: parse error at $TESTTMP/.hg/hgrc:1:  key=value
  unexpected leading whitespace
  [255]

  $ cat > .hg/hgrc << EOF
  >  [section]
  > key=value
  > EOF
  $ hg showconfig
  hg: parse error at $TESTTMP/.hg/hgrc:1:  [section]
  unexpected leading whitespace
  [255]

Reset hgrc

  $ echo > .hg/hgrc

Test case sensitive configuration

  $ cat <<EOF >> $HGRCPATH
  > [Section]
  > KeY = Case Sensitive
  > key = lower case
  > EOF

  $ hg showconfig Section
  Section.KeY=Case Sensitive
  Section.key=lower case

  $ hg showconfig Section -Tjson
  [
   {
    "defaultvalue": null,
    "name": "Section.KeY",
    "source": "*.hgrc:*", (glob)
    "value": "Case Sensitive"
   },
   {
    "defaultvalue": null,
    "name": "Section.key",
    "source": "*.hgrc:*", (glob)
    "value": "lower case"
   }
  ]
  $ hg showconfig Section.KeY -Tjson
  [
   {
    "defaultvalue": null,
    "name": "Section.KeY",
    "source": "*.hgrc:*", (glob)
    "value": "Case Sensitive"
   }
  ]
  $ hg showconfig -Tjson | tail -7
   {
    "defaultvalue": null,
    "name": "*", (glob)
    "source": "*", (glob)
    "value": "*" (glob)
   }
  ]

Test config default of various types:

 {"defaultvalue": ""} for -T'json(defaultvalue)' looks weird, but that's
 how the templater works. Unknown keywords are evaluated to "".

 dynamicdefault

  $ hg config --config alias.foo= alias -Tjson
  [
   {
    "name": "alias.foo",
    "source": "--config",
    "value": ""
   }
  ]
  $ hg config --config alias.foo= alias -T'json(defaultvalue)'
  [
   {"defaultvalue": ""}
  ]
  $ hg config --config alias.foo= alias -T'{defaultvalue}\n'
  

 null

  $ hg config --config auth.cookiefile= auth -Tjson
  [
   {
    "defaultvalue": null,
    "name": "auth.cookiefile",
    "source": "--config",
    "value": ""
   }
  ]
  $ hg config --config auth.cookiefile= auth -T'json(defaultvalue)'
  [
   {"defaultvalue": null}
  ]
  $ hg config --config auth.cookiefile= auth -T'{defaultvalue}\n'
  

 false

  $ hg config --config commands.commit.post-status= commands -Tjson
  [
   {
    "defaultvalue": false,
    "name": "commands.commit.post-status",
    "source": "--config",
    "value": ""
   }
  ]
  $ hg config --config commands.commit.post-status= commands -T'json(defaultvalue)'
  [
   {"defaultvalue": false}
  ]
  $ hg config --config commands.commit.post-status= commands -T'{defaultvalue}\n'
  False

 true

  $ hg config --config format.dotencode= format -Tjson
  [
   {
    "defaultvalue": true,
    "name": "format.dotencode",
    "source": "--config",
    "value": ""
   }
  ]
  $ hg config --config format.dotencode= format -T'json(defaultvalue)'
  [
   {"defaultvalue": true}
  ]
  $ hg config --config format.dotencode= format -T'{defaultvalue}\n'
  True

 bytes

  $ hg config --config commands.resolve.mark-check= commands -Tjson
  [
   {
    "defaultvalue": "none",
    "name": "commands.resolve.mark-check",
    "source": "--config",
    "value": ""
   }
  ]
  $ hg config --config commands.resolve.mark-check= commands -T'json(defaultvalue)'
  [
   {"defaultvalue": "none"}
  ]
  $ hg config --config commands.resolve.mark-check= commands -T'{defaultvalue}\n'
  none

 empty list

  $ hg config --config commands.show.aliasprefix= commands -Tjson
  [
   {
    "defaultvalue": [],
    "name": "commands.show.aliasprefix",
    "source": "--config",
    "value": ""
   }
  ]
  $ hg config --config commands.show.aliasprefix= commands -T'json(defaultvalue)'
  [
   {"defaultvalue": []}
  ]
  $ hg config --config commands.show.aliasprefix= commands -T'{defaultvalue}\n'
  

 nonempty list

  $ hg config --config progress.format= progress -Tjson
  [
   {
    "defaultvalue": ["topic", "bar", "number", "estimate"],
    "name": "progress.format",
    "source": "--config",
    "value": ""
   }
  ]
  $ hg config --config progress.format= progress -T'json(defaultvalue)'
  [
   {"defaultvalue": ["topic", "bar", "number", "estimate"]}
  ]
  $ hg config --config progress.format= progress -T'{defaultvalue}\n'
  topic bar number estimate

 int

  $ hg config --config profiling.freq= profiling -Tjson
  [
   {
    "defaultvalue": 1000,
    "name": "profiling.freq",
    "source": "--config",
    "value": ""
   }
  ]
  $ hg config --config profiling.freq= profiling -T'json(defaultvalue)'
  [
   {"defaultvalue": 1000}
  ]
  $ hg config --config profiling.freq= profiling -T'{defaultvalue}\n'
  1000

 float

  $ hg config --config profiling.showmax= profiling -Tjson
  [
   {
    "defaultvalue": 0.999,
    "name": "profiling.showmax",
    "source": "--config",
    "value": ""
   }
  ]
  $ hg config --config profiling.showmax= profiling -T'json(defaultvalue)'
  [
   {"defaultvalue": 0.999}
  ]
  $ hg config --config profiling.showmax= profiling -T'{defaultvalue}\n'
  0.999

Test empty config source:

  $ cat <<EOF > emptysource.py
  > def reposetup(ui, repo):
  >     ui.setconfig(b'empty', b'source', b'value')
  > EOF
  $ cp .hg/hgrc .hg/hgrc.orig
  $ cat <<EOF >> .hg/hgrc
  > [extensions]
  > emptysource = `pwd`/emptysource.py
  > EOF

  $ hg config --debug empty.source
  read config from: * (glob)
  none: value
  $ hg config empty.source -Tjson
  [
   {
    "defaultvalue": null,
    "name": "empty.source",
    "source": "",
    "value": "value"
   }
  ]

  $ cp .hg/hgrc.orig .hg/hgrc

Test "%unset"

  $ cat >> $HGRCPATH <<EOF
  > [unsettest]
  > local-hgrcpath = should be unset (HGRCPATH)
  > %unset local-hgrcpath
  > 
  > global = should be unset (HGRCPATH)
  > 
  > both = should be unset (HGRCPATH)
  > 
  > set-after-unset = should be unset (HGRCPATH)
  > EOF

  $ cat >> .hg/hgrc <<EOF
  > [unsettest]
  > local-hgrc = should be unset (.hg/hgrc)
  > %unset local-hgrc
  > 
  > %unset global
  > 
  > both = should be unset (.hg/hgrc)
  > %unset both
  > 
  > set-after-unset = should be unset (.hg/hgrc)
  > %unset set-after-unset
  > set-after-unset = should be set (.hg/hgrc)
  > EOF

  $ hg showconfig unsettest
  unsettest.set-after-unset=should be set (.hg/hgrc)

Test exit code when no config matches

  $ hg config Section.idontexist
  [1]

sub-options in [paths] aren't expanded

  $ cat > .hg/hgrc << EOF
  > [paths]
  > foo = ~/foo
  > foo:suboption = ~/foo
  > EOF

  $ hg showconfig paths
  paths.foo:suboption=~/foo
  paths.foo=$TESTTMP/foo

edit failure

  $ HGEDITOR=false hg config --edit
  abort: edit failed: false exited with status 1
  [255]

config affected by environment variables

  $ EDITOR=e1 VISUAL=e2 hg config --debug | grep 'ui\.editor'
  $VISUAL: ui.editor=e2

  $ VISUAL=e2 hg config --debug --config ui.editor=e3 | grep 'ui\.editor'
  --config: ui.editor=e3

  $ PAGER=p1 hg config --debug | grep 'pager\.pager'
  $PAGER: pager.pager=p1

  $ PAGER=p1 hg config --debug --config pager.pager=p2 | grep 'pager\.pager'
  --config: pager.pager=p2

verify that aliases are evaluated as well

  $ hg init aliastest
  $ cd aliastest
  $ cat > .hg/hgrc << EOF
  > [ui]
  > user = repo user
  > EOF
  $ touch index
  $ unset HGUSER
  $ hg ci -Am test
  adding index
  $ hg log --template '{author}\n'
  repo user
  $ cd ..

alias has lower priority

  $ hg init aliaspriority
  $ cd aliaspriority
  $ cat > .hg/hgrc << EOF
  > [ui]
  > user = alias user
  > username = repo user
  > EOF
  $ touch index
  $ unset HGUSER
  $ hg ci -Am test
  adding index
  $ hg log --template '{author}\n'
  repo user
  $ cd ..

configs should be read in lexicographical order

  $ mkdir configs
  $ for i in `$TESTDIR/seq.py 10 99`; do
  >    printf "[section]\nkey=$i" > configs/$i.rc
  > done
  $ HGRCPATH=configs hg config section.key
  99