view contrib/tcsh_completion_build.sh @ 25878:800e090e9c64 stable

localrepo: make journal.dirstate contain in-memory changes before transaction

Before this patch, in-memory dirstate changes aren't written out at
opening transaction, even though 'journal.dirstate' is created
directly from '.hg/dirstate'.

Therefore, subsequent 'hg rollback' uses incomplete 'undo.dirstate' to
restore dirstate, if dirstate is changed and isn't written out before
opening transaction.

In cases below, the condition "dirstate is changed and isn't written
out before opening transaction" isn't satisfied and this problem
doesn't appear:

  - "wlock scope" and "transaction scope" are almost equivalent

    e.g. 'commit --amend', 'import' and so on

  - dirstate changes are written out before opening transaction

    e.g. 'rebase' (via 'dirstateguard') and 'commit -A' (by separated
    wlock scopes)

On the other hand, 'backout' may satisfy the condition above.

To make 'journal.dirstate' contain in-memory changes before opening
transaction, this patch explicitly invokes 'dirstate.write()' in
'localrepository.transaction()'.

'dirstate.write()' is placed before not "writing journal files out"
but "invoking pretxnopen hooks" for visibility of dirstate changes to
external hook processes.

BTW, in the test script, 'touch -t 200001010000' and 'hg status' are
invoked to make file 'c' surely clean in dirstate, because "clean but
unsure" files indirectly cause 'dirstate.write()' at 'repo.status()'
in 'repo.commit()' (see fe03f522dda9 for detail) and prevents from
certainly reproducing the issue.

#!/bin/sh

#
# tcsh_completion_build.sh - script to generate tcsh completion
#
#
# Copyright (C) 2005 TK Soh.
#
# This is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your
# option) any later version.
#
#
# Description
# -----------
# This script generates a tcsh source file to support completion
# of Mercurial commands and options.
#
# Instruction:
# -----------
# Run this script to generate the tcsh source file, and source
# the file to add command completion support for Mercurial.
#
#    tcsh% tcsh_completion.sh FILE
#    tcsh% source FILE
#
# If FILE is not specified, tcsh_completion will be generated.
#
# Bugs:
# ----
# 1. command specific options are not supported
# 2. hg commands must be specified immediately after 'hg'.
#

tcsh_file=${1-tcsh_completion}

hg_commands=`hg --debug help | \
        sed -e '1,/^list of commands:/d' \
            -e '/^enabled extensions:/,$d' \
            -e '/^additional help topics:/,$d' \
            -e '/^ [^ ]/!d; s/[,:]//g;' | \
        xargs -n5 | \
        sed -e '$!s/$/ \\\\/g; 2,$s/^ */    /g'`

hg_global_options=`hg -v help | \
        sed -e '1,/global/d;/^ *-/!d; s/ [^- ].*//' | \
        sed -e 's/ *$//; $!s/$/ \\\\/g; 2,$s/^ */    /g'`

hg_version=`hg version | sed -e '1q'`

script_name=`basename $0`

cat > $tcsh_file <<END
#
# tcsh completion for Mercurial
#
# This file has been auto-generated by $script_name for
# $hg_version
#
# Copyright (C) 2005 TK Soh.
#
# This is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your
# option) any later version.
#

complete hg \\
  'n/--cwd/d/' 'n/-R/d/' 'n/--repository/d/' \\
  'C/-/($hg_global_options)/' \\
  'p/1/($hg_commands)/'

END