tests/test-merge-partial-tool.t

py-3-13: stabilize the docstring output across all supported Python versions

Python 3.13 now trims indents from docstrings at compilation time
(to save space in .pyc), so all of our helptext is affected.
The indentation has never served a user-facing purpose and was more here
because nobody cared enough to remove it: we gain some screen space this way.
Rather than undo the transformation (which isn't really possible since the
transform also deletes leading/trailing whitespace), we align the behavior
of older Python versions with that of 3.13.

Unfortunately, this means breaking some of the translations. I've only
touched the ones that need to work for some tooling tests to pass, but
I do not have the time to fix the rest of them across all languages, since
they cannot be done in an automated way. i18n updates have been basically
abandonned for a good while now, hopefully someone cares enough to bring them
back.

Test support for partial-resolution tools

Create a tool that resolves conflicts after line 5 by simply dropping those
lines (even if there are no conflicts there)
  $ cat >> "$TESTTMP/head.sh" <<'EOF'
  > #!/bin/sh
  > for f in "$@"; do
  >   head -5 "$f" > tmp
  >   mv -f tmp "$f"
  > done
  > EOF
  $ chmod +x "$TESTTMP/head.sh"
...and another tool that keeps only the last 5 lines instead of the first 5.
  $ cat >> "$TESTTMP/tail.sh" <<'EOF'
  > #!/bin/sh
  > for f in "$@"; do
  >   tail -5 "$f" > tmp
  >   mv -f tmp "$f"
  > done
  > EOF
  $ chmod +x "$TESTTMP/tail.sh"

Set up both tools to run on all patterns (the default), and let the `tail` tool
run after the `head` tool, which means it will have no effect (we'll override it
to test order later)
  $ cat >> "$HGRCPATH" <<EOF
  > [partial-merge-tools]
  > head.executable=$TESTTMP/head.sh
  > tail.executable=$TESTTMP/tail.sh
  > tail.order=1
  > EOF

On Windows, running $TESTTMP/script.sh will open script.sh in an editor, if
that's what the configured file association is.  The code shell quotes the
*.executable value, so we can't set it to `sh $TESTTMP/script.sh`, because it
tries to run that as the executable.  As a workaround, generate a bat file that
invokes `sh script.sh`, and passes the args along.

#if windows
  $ cat >> "$TESTTMP/head.bat" <<'EOF'
  > @echo off
  > sh "%TESTTMP%/head.sh" %*
  > EOF

  $ cat >> "$TESTTMP/tail.bat" <<'EOF'
  > @echo off
  > sh "%TESTTMP%/tail.sh" %*
  > EOF

  $ sed 's/head.sh/head.bat/g' "${HGRCPATH}" > "${HGRCPATH}.tmp"
  $ sed 's/tail.sh/tail.bat/g' "${HGRCPATH}.tmp" > "${HGRCPATH}"
#endif

  $ make_commit() {
  >   echo "$@" | xargs -n1 > file
  >   hg add file 2> /dev/null
  >   hg ci -m "$*"
  > }


Let a partial-resolution tool resolve some conflicts and leave other conflicts
for the regular merge tool (:merge3 here)

  $ hg init repo
  $ cd repo
  $ make_commit a b c d e f
  $ make_commit a b2 c d e f2
  $ hg up 0
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ make_commit a b3 c d e f3
  created new head
  $ hg merge 1 -t :merge3
  merging file
  warning: conflicts while merging file! (edit, then use 'hg resolve --mark')
  0 files updated, 0 files merged, 0 files removed, 1 files unresolved
  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
  [1]
  $ cat file
  a
  <<<<<<< working copy:    e11a49d4b620 - test: a b3 c d e f3
  b3
  ||||||| common ancestor: 8ae8bb9cc43a - test: a b c d e f
  b
  =======
  b2
  >>>>>>> merge rev:       fbc096a40cc5 - test: a b2 c d e f2
  c
  d
  e


With premerge=keep, the partial-resolution tools runs before and doesn't see
the conflict markers

  $ hg up -C 2
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cat >> .hg/hgrc <<EOF
  > [merge-tools]
  > my-local.executable = cat
  > my-local.args = $local
  > my-local.premerge = keep-merge3
  > EOF
  $ hg merge 1 -t my-local
  merging file
  0 files updated, 1 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ cat file
  a
  <<<<<<< working copy:    e11a49d4b620 - test: a b3 c d e f3
  b3
  ||||||| common ancestor: 8ae8bb9cc43a - test: a b c d e f
  b
  =======
  b2
  >>>>>>> merge rev:       fbc096a40cc5 - test: a b2 c d e f2
  c
  d
  e


When a partial-resolution tool resolves all conflicts, the resolution should
be recorded and the regular merge tool should not be invoked for the file.

  $ hg up -C 0
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ make_commit a b c d e f2
  created new head
  $ hg up 0
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ make_commit a b c d e f3
  created new head
  $ hg merge 3 -t false
  merging file
  0 files updated, 1 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ cat file
  a
  b
  c
  d
  e


Can disable all partial merge tools (the `head` tool would have resolved this
conflict it had been enabled)

  $ hg up -C 4
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg merge 3 -t :merge3 --config merge.disable-partial-tools=yes
  merging file
  warning: conflicts while merging file! (edit, then use 'hg resolve --mark')
  0 files updated, 0 files merged, 0 files removed, 1 files unresolved
  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
  [1]
  $ cat file
  a
  b
  c
  d
  e
  <<<<<<< working copy:    d57edaa6e21a - test: a b c d e f3
  f3
  ||||||| common ancestor: 8ae8bb9cc43a - test: a b c d e f
  f
  =======
  f2
  >>>>>>> merge rev:       8c217da987be - test: a b c d e f2


Can disable one partial merge tool (the `head` tool would have resolved this
conflict it had been enabled)

  $ hg up -C 4
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg merge 3 -t :merge3 --config partial-merge-tools.head.disable=yes
  merging file
  warning: conflicts while merging file! (edit, then use 'hg resolve --mark')
  0 files updated, 0 files merged, 0 files removed, 1 files unresolved
  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
  [1]
  $ cat file
  b
  c
  d
  e
  <<<<<<< working copy:    d57edaa6e21a - test: a b c d e f3
  f3
  ||||||| common ancestor: 8ae8bb9cc43a - test: a b c d e f
  f
  =======
  f2
  >>>>>>> merge rev:       8c217da987be - test: a b c d e f2


Only tools whose patterns match are run. We make `head` not match here, so
only `tail` should run

  $ hg up -C 4
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg merge 3 -t :merge3 --config partial-merge-tools.head.patterns=other
  merging file
  warning: conflicts while merging file! (edit, then use 'hg resolve --mark')
  0 files updated, 0 files merged, 0 files removed, 1 files unresolved
  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
  [1]
  $ cat file
  b
  c
  d
  e
  <<<<<<< working copy:    d57edaa6e21a - test: a b c d e f3
  f3
  ||||||| common ancestor: 8ae8bb9cc43a - test: a b c d e f
  f
  =======
  f2
  >>>>>>> merge rev:       8c217da987be - test: a b c d e f2


Filesets can be used to select which files to run partial merge tools on.

  $ hg up -C 4
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg merge 3 -t :merge3 --config partial-merge-tools.head.patterns=set:other
  merging file
  warning: conflicts while merging file! (edit, then use 'hg resolve --mark')
  0 files updated, 0 files merged, 0 files removed, 1 files unresolved
  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
  [1]
  $ cat file
  b
  c
  d
  e
  <<<<<<< working copy:    d57edaa6e21a - test: a b c d e f3
  f3
  ||||||| common ancestor: 8ae8bb9cc43a - test: a b c d e f
  f
  =======
  f2
  >>>>>>> merge rev:       8c217da987be - test: a b c d e f2


If there are several matching tools, they are run in requested order. We move
`head` after `tail` in order here so it has no effect (the conflict in "f" thus
remains).

  $ hg up -C 4
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg merge 3 -t :merge3 --config partial-merge-tools.head.order=2
  merging file
  warning: conflicts while merging file! (edit, then use 'hg resolve --mark')
  0 files updated, 0 files merged, 0 files removed, 1 files unresolved
  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
  [1]
  $ cat file
  b
  c
  d
  e
  <<<<<<< working copy:    d57edaa6e21a - test: a b c d e f3
  f3
  ||||||| common ancestor: 8ae8bb9cc43a - test: a b c d e f
  f
  =======
  f2
  >>>>>>> merge rev:       8c217da987be - test: a b c d e f2


When using "nomerge" tools (e.g. `:other`), the partial-resolution tools
should not be run.

  $ hg up -C 4
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg merge 3 -t :other
  0 files updated, 1 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ cat file
  a
  b
  c
  d
  e
  f2


If a partial-resolution tool resolved some conflict and simplemerge can
merge the rest, then the regular merge tool should not be used. Here we merge
"a b c d e3 f3" with "a b2 c d e f2". The `head` tool resolves the conflict in
"f" and the internal simplemerge merges the remaining changes in "b" and "e".

  $ hg up -C 0
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ make_commit a b c d e3 f3
  created new head
  $ hg merge 1 -t false
  merging file
  0 files updated, 1 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ cat file
  a
  b2
  c
  d
  e3

Test that arguments get passed as expected.

  $ cat >> "$TESTTMP/log-args.sh" <<'EOF'
  > #!/bin/sh
  > echo "$@" > args.log
  > EOF
  $ chmod +x "$TESTTMP/log-args.sh"
  $ cat >> "$HGRCPATH" <<EOF
  > [partial-merge-tools]
  > log-args.executable=$TESTTMP/log-args.sh
  > EOF

On Windows, running $TESTTMP/script.sh will open script.sh in an editor, if
that's what the configured file association is.  The code shell quotes the
*.executable value, so we can't set it to `sh $TESTTMP/script.sh`, because it
tries to run that as the executable.  As a workaround, generate a bat file that
invokes `sh script.sh`, and passes the args along.

#if windows
  $ cat >> "$TESTTMP/log-args.bat" <<'EOF'
  > @echo off
  > sh "%TESTTMP%/log-args.sh" %*
  > EOF

  $ sed 's/log-args.sh/log-args.bat/g' "$HGRCPATH" > "${HGRCPATH}.tmp"
  $ mv "${HGRCPATH}.tmp" "${HGRCPATH}"
#endif

  $ hg up -C 2
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg merge 1
  merging file
  warning: conflicts while merging file! (edit, then use 'hg resolve --mark')
  0 files updated, 0 files merged, 0 files removed, 1 files unresolved
  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
  [1]
  $ cat args.log
  */hgmerge-*/file~local */hgmerge-*/file~base */hgmerge-*/file~other (glob)
  $ hg up -C 2
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg merge 1 --config partial-merge-tools.log-args.args='--other $other $base --foo --local $local --also-other $other'
  merging file
  warning: conflicts while merging file! (edit, then use 'hg resolve --mark')
  0 files updated, 0 files merged, 0 files removed, 1 files unresolved
  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
  [1]
  $ cat args.log
  --other */hgmerge-*/file~other */hgmerge-*/file~base --foo --local */hgmerge-*/file~local --also-other */hgmerge-*/file~other (glob)