git-lfs/script/gpm
2015-04-14 17:51:33 -06:00

115 lines
3.9 KiB
Bash
Executable File

#!/usr/bin/env bash
# Copied from https://github.com/pote/gpm
#
# The MIT License
#
# Copyright (c) 2013 Pablo Astigarraga
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
#
set -eu
## Functions/
usage() {
cat << EOF
SYNOPSIS
gpm leverages the power of the go get command and the underlying version
control systems used by it to set your Go dependencies to desired versions,
thus allowing easily reproducible builds in your Go projects.
A Godeps file in the root of your Go application is expected containing
the import paths of your packages and a specific tag or commit hash
from its version control system, an example Godeps file looks like this:
$ cat Godeps
# This is a comment
github.com/nu7hatch/gotrail v0.0.2
github.com/replicon/fast-archiver v1.02 #This is another comment!
github.com/nu7hatch/gotrail 2eb79d1f03ab24bacbc32b15b75769880629a865
gpm has a companion tool, called [gvp](https://github.com/pote/gvp) which
provides vendoring functionalities, it alters your GOPATH so every project
has its own isolated dependency directory, it's usage is recommended.
USAGE
$ gpm # Same as 'install'.
$ gpm install # Parses the Godeps file, installs dependencies and sets
# them to the appropriate version.
$ gpm version # Outputs version information
$ gpm help # Prints this message
EOF
}
# Iterates over Godep file dependencies and sets
# the specified version on each of them.
set_dependencies() {
deps=$(sed 's/#.*//;/^\s*$/d' < $1) || echo ""
while read package version; do
(
install_path="${GOPATH%%:*}/src/${package%%/...}"
[[ -e "$install_path/.git/index.lock" ||
-e "$install_path/.hg/store/lock" ||
-e "$install_path/.bzr/checkout/lock" ]] && wait
echo ">> Getting package "$package""
go get -u -d "$package"
echo ">> Setting $package to version $version"
cd $install_path
[ -d .hg ] && hg update -q "$version"
[ -d .git ] && git checkout -q "$version"
[ -d .bzr ] && bzr revert -q -r "$version"
[ -d .svn ] && svn update -r "$version"
) &
done < <(echo "$deps")
wait
echo ">> All Done"
}
## /Functions
case "${1:-"install"}" in
"version")
echo ">> gpm v1.2.0"
;;
"install")
deps_file="Godeps"
[[ "$#" -eq 2 ]] && [[ -n "$2" ]] && deps_file="$2"
[[ -f "$deps_file" ]] || (echo ">> $deps_file file does not exist." && exit 1)
(which go > /dev/null) ||
( echo ">> Go is currently not installed or in your PATH" && exit 1)
set_dependencies $deps_file
;;
"help")
usage
;;
*)
## Support for Plugins: if command is unknown search for a gpm-command executable.
if command -v "gpm-$1" > /dev/null
then
plugin=$1 &&
shift &&
gpm-$plugin $@ &&
exit
else
usage && exit 1
fi
;;
esac