view tests/test-parentrevspec.t @ 13955:86b5cc1e8be8 stable

help config: explain that config files do not exist by default

Inspired by critique given on StackOverflow where a user writes:

  I can have a good guess at what "%USERPROFILE%" might signify but
  none of the files listed in the "hg help config" output exist after
  running the installer. Previous experience would suggest that
  missing files mean something somewhere has gone seriously wrong.

  http://stackoverflow.com/questions/2329023/2351139#2351139

  $ commit()
  > {
  >     msg=$1
  >     p1=$2
  >     p2=$3
  > 
  >     if [ "$p1" ]; then
  >         hg up -qC $p1
  >     fi
  > 
  >     if [ "$p2" ]; then
  >         HGMERGE=true hg merge -q $p2
  >     fi
  > 
  >     echo >> foo
  > 
  >     hg commit -qAm "$msg"
  > }
  $ hg init repo
  $ cd repo
  $ echo '[extensions]' > .hg/hgrc
  $ echo 'parentrevspec =' >> .hg/hgrc
  $ commit '0: add foo'
  $ commit '1: change foo 1'
  $ commit '2: change foo 2a'
  $ commit '3: change foo 3a'
  $ commit '4: change foo 2b' 1
  $ commit '5: merge' 3 4
  $ commit '6: change foo again'
  $ hg log --template '{rev}:{node|short} {parents}\n'
  6:755d1e0d79e9 
  5:9ce2ce29723a 3:a3e00c7dbf11 4:bb4475edb621 
  4:bb4475edb621 1:5d953a1917d1 
  3:a3e00c7dbf11 
  2:befc7d89d081 
  1:5d953a1917d1 
  0:837088b6e1d9 
  $ echo
  
  $ lookup()
  > {
  >     for rev in "$@"; do
  >         printf "$rev: "
  >         hg id -nr $rev
  >     done
  >     true
  > }
  $ tipnode=`hg id -ir tip`

should work with tag/branch/node/rev

  $ for r in tip default $tipnode 6; do
  >     lookup "$r^"
  > done
  tip^: 5
  default^: 5
  755d1e0d79e9^: 5
  6^: 5
  $ echo
  

some random lookups

  $ lookup "6^^" "6^^^" "6^^^^" "6^^^^^" "6^^^^^^" "6^1" "6^2" "6^^2" "6^1^2" "6^^3"
  6^^: 3
  6^^^: 2
  6^^^^: 1
  6^^^^^: 0
  6^^^^^^: -1
  6^1: 5
  6^2: hg: parse error at 1: syntax error
  6^^2: 4
  6^1^2: 4
  6^^3: hg: parse error at 1: syntax error
  $ lookup "6~" "6~1" "6~2" "6~3" "6~4" "6~5" "6~42" "6~1^2" "6~1^2~2"
  6~: hg: parse error at 1: syntax error
  6~1: 5
  6~2: 3
  6~3: 2
  6~4: 1
  6~5: 0
  6~42: -1
  6~1^2: 4
  6~1^2~2: 0
  $ echo
  

with a tag "6^" pointing to rev 1

  $ hg tag -l -r 1 "6^"
  $ lookup "6^" "6^1" "6~1" "6^^"
  6^: 1
  6^1: 5
  6~1: 5
  6^^: 3
  $ echo
  

with a tag "foo^bar" pointing to rev 2

  $ hg tag -l -r 2 "foo^bar"
  $ lookup "foo^bar" "foo^bar^"
  foo^bar: 2
  foo^bar^: hg: parse error at 3: syntax error