git/git-parse-remote.sh

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#!/bin/sh
# git-ls-remote could be called from outside a git managed repository;
# this would fail in that case and would issue an error message.
GIT_DIR=$(git rev-parse -q --git-dir) || :;
get_default_remote () {
curr_branch=$(git symbolic-ref -q HEAD)
curr_branch="${curr_branch#refs/heads/}"
origin=$(git config --get "branch.$curr_branch.remote")
echo ${origin:-origin}
}
get_remote_merge_branch () {
case "$#" in
0|1)
origin="$1"
default=$(get_default_remote)
test -z "$origin" && origin=$default
curr_branch=$(git symbolic-ref -q HEAD) &&
[ "$origin" = "$default" ] &&
echo $(git for-each-ref --format='%(upstream)' $curr_branch)
;;
*)
repo=$1
shift
ref=$1
# FIXME: It should return the tracking branch
# Currently only works with the default mapping
case "$ref" in
+*)
ref=$(expr "z$ref" : 'z+\(.*\)')
;;
esac
expr "z$ref" : 'z.*:' >/dev/null || ref="${ref}:"
remote=$(expr "z$ref" : 'z\([^:]*\):')
case "$remote" in
'' | HEAD ) remote=HEAD ;;
heads/*) remote=${remote#heads/} ;;
refs/heads/*) remote=${remote#refs/heads/} ;;
refs/* | tags/* | remotes/* ) remote=
esac
[ -n "$remote" ] && case "$repo" in
.)
echo "refs/heads/$remote"
;;
*)
echo "refs/remotes/$repo/$remote"
;;
esac
esac
}
error_on_missing_default_upstream () {
cmd="$1"
op_type="$2"
op_prep="$3"
example="$4"
branch_name=$(git symbolic-ref -q HEAD)
if test -z "$branch_name"
then
echo "You are not currently on a branch, so I cannot use any
'branch.<branchname>.merge' in your configuration file.
Please specify which branch you want to $op_type $op_prep on the command
line and try again (e.g. '$example').
See git-${cmd}(1) for details."
else
echo "You asked me to $cmd without telling me which branch you
want to $op_type $op_prep, and 'branch.${branch_name#refs/heads/}.merge' in
your configuration file does not tell me, either. Please
specify which branch you want to use on the command line and
try again (e.g. '$example').
See git-${cmd}(1) for details.
If you often $op_type $op_prep the same branch, you may want to
use something like the following in your configuration file:
[branch \"${branch_name#refs/heads/}\"]
remote = <nickname>
merge = <remote-ref>"
test rebase = "$op_type" &&
echo " rebase = true"
echo "
[remote \"<nickname>\"]
url = <url>
fetch = <refspec>
See git-config(1) for details."
fi
exit 1
}