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Current Path : /usr/share/zsh/4.3.11/functions/
Current File : //usr/share/zsh/4.3.11/functions/VCS_INFO_get_data_hg
## vim:ft=zsh
## mercurial support by: Frank Terbeck <ft@bewatermyfriend.org>
## with large contributions by Seth House <seth@eseth.com>
## Distributed under the same BSD-ish license as zsh itself.

setopt localoptions extendedglob NO_shwordsplit

local hgbase bmfile branchfile rebasefile dirstatefile mqseriesfile \
    mqstatusfile mqguardsfile patchdir mergedir \
    r_csetid r_lrev r_branch i_bmhash i_bmname \
    revformat branchformat hgactionstring hgchanges \
    hgbmstring hgmqstring applied_string unapplied_string guards_string

local -a hgid_args defrevformat defbranchformat \
    hgbmarks mqpatches mqseries mqguards mqunapplied hgmisc \
    i_patchguards i_negguards i_posguards

local -xA hook_com

hgbase=${vcs_comm[basedir]}
rrn=${hgbase:t}
r_csetid='' # changeset id (long hash)
r_lrev='' # local revision
patchdir="${hgbase}/.hg/patches"
mergedir="${hgbase}/.hg/merge/"
bmfile="${hgbase}/.hg/bookmarks"
branchfile="${hgbase}/.hg/branch"
rebasefile="${hgbase}/.hg/rebasestate"
dirstatefile="${hgbase}/.hg/dirstate"
mqstatusfile="${patchdir}/status" # currently applied patches
mqseriesfile="${patchdir}/series" # all patches
mqguardsfile="${patchdir}/guards"

# Look for any --flavours
VCS_INFO_adjust

# Calling the 'hg' program is quite a bit too slow for prompts.
# Disabled by default anyway, so no harm done.
if zstyle -t ":vcs_info:${vcs}:${usercontext}:${rrn}" get-revision ; then
    # Calling hexdump is (much) faster than hg but doesn't get the local rev
    if zstyle -t ":vcs_info:${vcs}:${usercontext}:${rrn}" use-simple \
            && ( VCS_INFO_check_com hexdump ) && [[ -r ${dirstatefile} ]] ; then
        r_csetid=$(hexdump -n 20 -e '1/1 "%02x"' ${dirstatefile})
    else
        hgid_args=( --debug id -i -n -b )

        # Looking for changes is a tad bit slower since the dirstate cache must
        # first be refreshed before being read
        zstyle -t ":vcs_info:${vcs}:${usercontext}:${rrn}" \
            "check-for-changes" || hgid_args+=( -r. )

        local HGRCPATH
        HGRCPATH="/dev/null" ${vcs_comm[cmd]} ${(z)hgid_args} \
            | read -r r_csetid r_lrev r_branch
    fi
fi

# If the user doesn't opt to invoke hg we can still get the current branch
if [[ -z ${r_branch} && -r ${branchfile} ]] ; then
    r_branch=$(< ${branchfile})
fi

# If we still don't know the branch it's safe to assume default
[[ -n ${r_branch} ]] || r_branch="default"

# The working dir has uncommitted-changes if the revision ends with a +
if [[ $r_lrev[-1] == + ]] ; then
    hgchanges=1

    r_lrev=${r_lrev%+}
    r_csetid=${r_csetid%+}
fi

# This directory only exists during a merge
[[ -d $mergedir ]] && hgactionstring="merging"

# This file only exists during a rebase
[[ -e $rebasefile ]] && hgactionstring="rebasing"


### Build the current revision display
[[ -n ${r_csetid} ]] && defrevformat+=( "%h" )
[[ -n ${r_lrev} ]] && defrevformat+=( "%r" )

zstyle -s ":vcs_info:${vcs}:${usercontext}:${rrn}" \
    "hgrevformat" revformat || revformat=${(j/:/)defrevformat}

hook_com=( localrev "${r_lrev}" "hash" "${r_csetid}" )

if VCS_INFO_hook 'set-hgrev-format' "${revformat}"; then
    zformat -f r_lrev "${revformat}" \
        "r:${hook_com[localrev]}" "h:${hook_com[hash]}"
else
    r_lrev=${hook_com[rev-replace]}
fi

hook_com=()

### Build the branch display
[[ -n ${r_branch} ]] && defbranchformat+=( "%b" )
[[ -n ${r_lrev} ]] && defbranchformat+=( "%r" )

zstyle -s ":vcs_info:${vcs}:${usercontext}:${rrn}" \
    branchformat branchformat || branchformat=${(j/:/)defbranchformat}

hook_com=( branch "${r_branch}" revision "${r_lrev}" )

if VCS_INFO_hook 'set-branch-format' "${branchformat}"; then
    zformat -f branchformat "${branchformat}" \
        "b:${hook_com[branch]}" "r:${hook_com[revision]}"
else
    branchformat=${hook_com[branch-replace]}
fi

hook_com=()

### Look for current Bookmarks (this requires knowing the changeset id)
if zstyle -t ":vcs_info:${vcs}:${usercontext}:${rrn}" get-bookmarks \
        && [[ -r "${bmfile}" ]] && [[ -n "$r_csetid" ]] ; then
    while read -r i_bmhash i_bmname ; do
        # Compare hash in bookmarks file with changeset id
        [[ $r_csetid == $i_bmhash ]] && hgbmarks+=( $i_bmname )
    done < ${bmfile}

    if VCS_INFO_hook 'gen-hg-bookmark-string' "${hgbmarks[@]}"; then
        hgbmstring=${(j:, :)hgbmarks}
    else
        hgbmstring=${hook_com[hg-bookmark-string]}
    fi

    hook_com=()
fi

### Look for any applied Mercurial Queue patches
if zstyle -T ":vcs_info:${vcs}:${usercontext}:${rrn}" get-mq \
        && [[ -d $patchdir ]] ; then
    if [[ -e $mqstatusfile ]]; then
        mqpatches=( ${${(f)"$(< "${patchdir}/status")"}/(#s)[a-f0-9]##:/} )
        mqpatches=( ${(Oa)mqpatches} )
    fi

    if zstyle -t ":vcs_info:${vcs}:${usercontext}:${rrn}" get-unapplied \
            && [[ -r ${mqseriesfile} ]]; then
        # Okay, here's a little something that assembles a list of unapplied
        # patches that takes into account if mq-guards are active or not.

        # Collect active guards
        if [[ -r ${mqguardsfile} ]]; then
            mqguards=( ${(f)"$(< "${mqguardsfile}")"} )
            mqguards=( ${(oa)mqguards} )
        fi

        while read -r i_patch i_patchguards ; do
            # Skip commented lines
            [[ ${i_patch} == [[:space:]]#"#"* ]] && continue

            # Keep list of all patches
            mqseries+=( $i_patch )

            # Separate negative and positive guards to more easily find the
            # intersection of active guards with patch guards
            i_patchguards=( ${(s: :)i_patchguards} )
            i_negguards=( ${${(M)i_patchguards:#*"#-"*}/(#s)\#-/} )
            i_posguards=( ${${(M)i_patchguards:#*"#+"*}/(#s)\#+/} )

            # Patch with any negative guards is never pushed if guard is active
            if [[ ${#i_negguards} -gt 0
                    && ${#${(@M)mqguards:#${(~j,|,)i_negguards}}} -gt 0 ]] ; then
                continue
            fi

            # Patch with positive guards is only pushed if guard is active
            if [[ ${#i_posguards} -gt 0 ]] ; then
                if [[ ${#${(@M)mqguards:#${(~j,|,)i_posguards}}} -gt 0 ]] ; then
                    mqunapplied+=( $i_patch )
                fi
                continue
            fi

            # If we made it this far the patch isn't guarded and should be pushed
            mqunapplied+=( $i_patch )
        done < ${mqseriesfile}
    fi

    if VCS_INFO_hook 'gen-applied-string' "${mqpatches[@]}"; then
        (( ${#mqpatches} )) && applied_string=${mqpatches[1]}
    else
        applied_string=${hook_com[applied-string]}
    fi

    hook_com=()

    if VCS_INFO_hook 'gen-unapplied-string' "${mqunapplied[@]}"; then
        unapplied_string=${#mqunapplied}
    else
        unapplied_string=${hook_com[unapplied-string]}
    fi

    hook_com=()

    if VCS_INFO_hook 'gen-mqguards-string' "${mqguards[@]}"; then
        guards_string=${(j:,:)mqguards}
    else
        guards_string=${hook_com[guards-string]}
    fi

    if (( ${#mqpatches} )); then
        zstyle -s ":vcs_info:${vcs}:${usercontext}:${rrn}" patch-format \
            hgmqstring || hgmqstring="%p (%n applied)"
    else
        zstyle -s ":vcs_info:${vcs}:${usercontext}:${rrn}" nopatch-format \
            hgmqstring || hgmqstring="no patch applied"
    fi

    hook_com=( applied "${applied_string}" unapplied "${unapplied_string}"
               applied-n ${#mqpatches}     unapplied-n ${#mqunapplied}
               guards "${guards_string}"   guards-n ${#mqguards} )

    if VCS_INFO_hook 'set-patch-format' ${qstring}; then
        zformat -f hgmqstring "${hgmqstring}" \
            "p:${hook_com[applied]}" "u:${hook_com[unapplied]}" \
            "n:${#mqpatches}" "c:${#mqunapplied}" \
            "g:${hook_com[guards]}" "G:${#mqguards}"
    else
        hgmqstring=${hook_com[patch-replace]}
    fi

    hook_com=()
fi


### Build the misc string
hgmisc+=( ${hgmqstring} )
hgmisc+=( ${hgbmstring} )

backend_misc[patches]="${hgmqstring}"
backend_misc[bookmarks]="${hgbmstring}"

VCS_INFO_formats "${hgactionstring}" "${branchformat}" "${hgbase}" '' "${hgchanges}" "${r_lrev}" "${(j:;:)hgmisc}"
return 0
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