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Edit File: VCS_INFO_get_data_git

## vim:ft=zsh
## git support by: Frank Terbeck <ft@bewatermyfriend.org>
## Distributed under the same BSD-ish license as zsh itself.

setopt localoptions extendedglob NO_shwordsplit
local gitdir gitbase gitbranch gitaction gitunstaged gitstaged gitsha1

VCS_INFO_git_getaction () {
    local gitaction='' gitdir=$1
    local tmp

for tmp in "${gitdir}/rebase-apply" \
               "${gitdir}/rebase"       \
               "${gitdir}/../.dotest" ; do
        if [[ -d ${tmp} ]] ; then
            if   [[ -f "${tmp}/rebasing" ]] ; then
                gitaction="rebase"
            elif [[ -f "${tmp}/applying" ]] ; then
                gitaction="am"
            else
                gitaction="am/rebase"
            fi
            printf '%s' ${gitaction}
            return 0
        fi
    done

for tmp in "${gitdir}/rebase-merge/interactive" \
               "${gitdir}/.dotest-merge/interactive" ; do
        if [[ -f "${tmp}" ]] ; then
            printf '%s' "rebase-i"
            return 0
        fi
    done

for tmp in "${gitdir}/rebase-merge" \
               "${gitdir}/.dotest-merge" ; do
        if [[ -d "${tmp}" ]] ; then
            printf '%s' "rebase-m"
            return 0
        fi
    done

if [[ -f "${gitdir}/MERGE_HEAD" ]] ; then
        printf '%s' "merge"
        return 0
    fi

if [[ -f "${gitdir}/BISECT_LOG" ]] ; then
        printf '%s' "bisect"
        return 0
    fi
    return 1
}

VCS_INFO_git_getbranch () {
    local gitbranch gitdir=$1
    local gitsymref="${vcs_comm[cmd]} symbolic-ref HEAD"

if    [[ -d "${gitdir}/rebase-apply" ]] \
       || [[ -d "${gitdir}/rebase" ]]       \
       || [[ -d "${gitdir}/../.dotest" ]]   \
       || [[ -f "${gitdir}/MERGE_HEAD" ]] ; then
        gitbranch="$(${(z)gitsymref} 2> /dev/null)"
        [[ -z ${gitbranch} ]] && [[ -r ${gitdir}/rebase-apply/head-name ]] \
            && gitbranch="$(< ${gitdir}/rebase-apply/head-name)"

elif   [[ -f "${gitdir}/rebase-merge/interactive" ]] \
        || [[ -d "${gitdir}/rebase-merge" ]] ; then
        gitbranch="$(< ${gitdir}/rebase-merge/head-name)"

elif   [[ -f "${gitdir}/.dotest-merge/interactive" ]] \
        || [[ -d "${gitdir}/.dotest-merge" ]] ; then
        gitbranch="$(< ${gitdir}/.dotest-merge/head-name)"

else
        gitbranch="$(${(z)gitsymref} 2> /dev/null)"

if [[ $? -ne 0 ]] ; then
            gitbranch="refs/tags/$(${vcs_comm[cmd]} describe --exact-match HEAD 2>/dev/null)"

if [[ $? -ne 0 ]] ; then
                gitbranch="${${"$(< $gitdir/HEAD)"}[1,7]}..."
            fi
        fi
    fi

printf '%s' "${gitbranch}"
    return 0
}

VCS_INFO_git_get_stgit_top_patch () {
    local patchdir=$1

if [[ -d "$patchdir" ]]; then
        local -a patches
        patches=(${(f)"$(< "${patchdir}/applied")"})
        printf '%s' $patches[-1]
        return 0
    fi

return 1
}

VCS_INFO_git_get_stgit_unapplied() {
    local patchdir=$1

if [[ -d "$patchdir" ]]; then
        local -a patches
        patches=(${(f)"$(< "${patchdir}/unapplied")"})
        if [[ -z $patches[@] ]]; then
            printf 0
        else
            printf '%d' $#patches
        fi
        return 0
    fi

return 1
}

gitdir=${vcs_comm[gitdir]}
gitbranch="$(VCS_INFO_git_getbranch ${gitdir})"
if zstyle -t ":vcs_info:${vcs}:${usercontext}:${rrn}" get-revision && \
    [[ ${gitbranch} == refs/* ]] && \
    [[ -r "${gitdir}/${gitbranch}" ]] ; then

gitsha1="${"$(< $gitdir/$gitbranch)"}"
else
    gitsha1=''
fi
gitbranch="${gitbranch##refs/[^/]##/}"

if [[ -z ${gitdir} ]] || [[ -z ${gitbranch} ]] ; then
    return 1
fi

if zstyle -t ":vcs_info:${vcs}:${usercontext}:${rrn}" "check-for-changes" ; then
    # Default: off - these are potentially expensive on big repositories
    ${vcs_comm[cmd]} diff --no-ext-diff --ignore-submodules --quiet --exit-code ||
        gitunstaged=1
    ${vcs_comm[cmd]} diff-index --cached --quiet --ignore-submodules HEAD ||
        gitstaged=1
fi

VCS_INFO_adjust
gitaction="$(VCS_INFO_git_getaction ${gitdir})"
gitbase=${PWD%/${$( ${vcs_comm[cmd]} rev-parse --show-prefix )%/##}}
rrn=${gitbase:t}

local patchdir=${gitdir}/patches/${gitbranch}
if [[ -d $patchdir ]] ; then
    stgitpatch=$(VCS_INFO_git_get_stgit_top_patch "${patchdir}")
    stgitunapplied=$(VCS_INFO_git_get_stgit_unapplied "${patchdir}")

stgitpatch=${stgitpatch:-"no patch applied"}

zstyle -s ":vcs_info:${vcs}:${usercontext}:${rrn}" stgitformat stgitmsg || stgitmsg=" %p (%c)"
    zformat -f stgitmsg "${stgitmsg}" "p:${stgitpatch}" "c:${stgitunapplied}"
    gitmisc=${stgitmsg}
else
    gitmisc=''
fi

VCS_INFO_formats "${gitaction}" "${gitbranch}" "${gitbase}" "${gitstaged}" "${gitunstaged}" "${gitsha1}" "${gitmisc}"
return 0

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