tests/test-narrow-trackedcmd.t

errors: raise ConfigError on failure to parse config file

This replaces two raises of `ParseError` by `ConfigError`, which makes
it so we get the desired exit code when `ui.detailed-exit-code` is
enabled. Because the exceptions include a location, I had to add that
to `ConfigError` as well. I considered making `ConfigError` a subclass
of `ParseError`, but it doesn't feel like it quite passes the "is-a"
test.

I used "config error: " as prefix for these errors instead of the
previous "hg: parse error: ", which seems a little less accurate now
(and, as I've said before, I don't know what the "hg: " part is
supposed to signify anyway). I can easily be convinced to change the
prefix to something else (including "abort: ").

Some of the exceptions raised here mean that we fail to even load the
`ui` object in the `dispatch` module. When that happens, we don't know
to use detailed exit codes, so some tests (e.g. `test-hgrc.t`) still
see exit code 255. I'll try to get back to that later. It should be
possible to give detailed exit codes if at least part of the config
can be read (e.g. when the system-wide one enables detailed exit codes
and the user's config fails to parse).

Differential Revision: https://phab.mercurial-scm.org/D9355

#testcases flat tree
  $ . "$TESTDIR/narrow-library.sh"

#if tree
  $ cat << EOF >> $HGRCPATH
  > [experimental]
  > treemanifest = 1
  > EOF
#endif

  $ hg init master
  $ cd master
  $ cat >> .hg/hgrc <<EOF
  > [narrow]
  > serveellipses=True
  > EOF

  $ mkdir inside
  $ echo 'inside' > inside/f
  $ hg add inside/f
  $ hg commit -m 'add inside'

  $ mkdir widest
  $ echo 'widest' > widest/f
  $ hg add widest/f
  $ hg commit -m 'add widest'

  $ mkdir outside
  $ echo 'outside' > outside/f
  $ hg add outside/f
  $ hg commit -m 'add outside'

  $ cd ..

narrow clone the inside file

  $ hg clone --narrow ssh://user@dummy/master narrow --include inside
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 1 changes to 1 files
  new changesets *:* (glob)
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd narrow
  $ hg tracked
  I path:inside
  $ ls -A
  .hg
  inside
  $ cat inside/f
  inside
  $ cd ..

add more upstream files which we will include in a wider narrow spec

  $ cd master

  $ mkdir wider
  $ echo 'wider' > wider/f
  $ hg add wider/f
  $ echo 'widest v2' > widest/f
  $ hg commit -m 'add wider, update widest'

  $ echo 'widest v3' > widest/f
  $ hg commit -m 'update widest v3'

  $ echo 'inside v2' > inside/f
  $ hg commit -m 'update inside'

  $ mkdir outside2
  $ echo 'outside2' > outside2/f
  $ hg add outside2/f
  $ hg commit -m 'add outside2'

  $ echo 'widest v4' > widest/f
  $ hg commit -m 'update widest v4'

  $ hg log -T "{if(ellipsis, '...')}{rev}: {desc}\n"
  7: update widest v4
  6: add outside2
  5: update inside
  4: update widest v3
  3: add wider, update widest
  2: add outside
  1: add widest
  0: add inside

  $ cd ..

Testing the --import-rules flag of `hg tracked` command

  $ cd narrow
  $ hg tracked --import-rules
  hg tracked: option --import-rules requires argument
  hg tracked [OPTIONS]... [REMOTE]
  
  show or change the current narrowspec
  
  options ([+] can be repeated):
  
      --addinclude VALUE [+]       new paths to include
      --removeinclude VALUE [+]    old paths to no longer include
      --auto-remove-includes       automatically choose unused includes to
                                   remove
      --addexclude VALUE [+]       new paths to exclude
      --import-rules VALUE         import narrowspecs from a file
      --removeexclude VALUE [+]    old paths to no longer exclude
      --clear                      whether to replace the existing narrowspec
      --force-delete-local-changes forces deletion of local changes when
                                   narrowing
      --update-working-copy        update working copy when the store has
                                   changed
   -e --ssh CMD                    specify ssh command to use
      --remotecmd CMD              specify hg command to run on the remote side
      --insecure                   do not verify server certificate (ignoring
                                   web.cacerts config)
  
  (use 'hg tracked -h' to show more help)
  [255]
  $ hg tracked --import-rules doesnotexist
  abort: cannot read narrowspecs from '$TESTTMP/narrow/doesnotexist': $ENOENT$
  [255]

  $ cat > specs <<EOF
  > %include foo
  > [include]
  > path:widest/
  > [exclude]
  > path:inside/
  > EOF

  $ hg tracked --import-rules specs
  abort: including other spec files using '%include' is not supported in narrowspec
  [255]

  $ cat > specs <<EOF
  > [include]
  > outisde
  > [exclude]
  > inside
  > EOF

  $ hg tracked --import-rules specs
  comparing with ssh://user@dummy/master
  searching for changes
  looking for local changes to affected paths
  deleting data/inside/f.i
  deleting meta/inside/00manifest.i (tree !)
  saved backup bundle to $TESTTMP/narrow/.hg/strip-backup/*-widen.hg (glob)
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 0 changes to 0 files
  $ hg tracked
  I path:outisde
  X path:inside

Testing the --import-rules flag with --addinclude and --addexclude

  $ cat > specs <<EOF
  > [include]
  > widest
  > EOF

  $ hg tracked --import-rules specs --addinclude 'wider/'
  comparing with ssh://user@dummy/master
  searching for changes
  saved backup bundle to $TESTTMP/narrow/.hg/strip-backup/*-widen.hg (glob)
  adding changesets
  adding manifests
  adding file changes
  added 3 changesets with 1 changes to 1 files
  $ hg tracked
  I path:outisde
  I path:wider
  I path:widest
  X path:inside

  $ cat > specs <<EOF
  > [exclude]
  > outside2
  > EOF

  $ hg tracked --import-rules specs --addexclude 'widest'
  comparing with ssh://user@dummy/master
  searching for changes
  looking for local changes to affected paths
  deleting data/widest/f.i
  deleting meta/widest/00manifest.i (tree !)
  $ hg tracked
  I path:outisde
  I path:wider
  X path:inside
  X path:outside2
  X path:widest

  $ hg tracked --import-rules specs --clear
  abort: the --clear option is not yet supported
  [255]

Testing with passing a out of wdir file

  $ cat > ../nspecs <<EOF
  > [include]
  > widest
  > EOF

  $ hg tracked --import-rules ../nspecs
  comparing with ssh://user@dummy/master
  searching for changes
  saved backup bundle to $TESTTMP/narrow/.hg/strip-backup/*-widen.hg (glob)
  adding changesets
  adding manifests
  adding file changes
  added 3 changesets with 0 changes to 0 files

  $ cd ..

Testing tracked command on a non-narrow repo

  $ hg init non-narrow
  $ cd non-narrow
  $ hg tracked --addinclude foobar
  abort: the tracked command is only supported on repositories cloned with --narrow
  [255]