mirror of
https://github.com/alrayyes/hugo-node-ruby-docker
synced 2023-11-14 15:56:28 +00:00
95 lines
2.4 KiB
Bash
95 lines
2.4 KiB
Bash
#!/bin/bash
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set -e
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usage() {
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base="$(basename "$0")"
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cat <<EOUSAGE
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usage: $base command [args]
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This script assumes that is is run from the root of your Go package (for
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example, "/go/src/app" if your GOPATH is set to "/go").
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In Go 1.4, a feature was introduced to supply the canonical "import path" for a
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given package in a comment attached to a package statement
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(https://golang.org/s/go14customimport).
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This script allows us to take a generic directory of Go source files such as
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"/go/src/app" and determine that the canonical "import path" of where that code
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expects to live and reference itself is "github.com/jsmith/my-cool-app". It
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will then ensure that "/go/src/github.com/jsmith/my-cool-app" is a symlink to
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"/go/src/app", which allows us to build and run it under the proper package
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name.
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For compatibility with versions of Go older than 1.4, the "import path" may also
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be placed in a file named ".godir".
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Available Commands:
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$base download
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$base download -u
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(equivalent to "go get -d [args] [godir]")
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$base install
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$base install -race
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(equivalent to "go install [args] [godir]")
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$base run
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$base run -app -specific -arguments
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(assumes "GOPATH/bin" is in "PATH")
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EOUSAGE
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}
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# "shift" so that "$@" becomes the remaining arguments and can be passed along to other "go" subcommands easily
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cmd="$1"
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if ! shift; then
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usage >&2
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exit 1
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fi
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goDir="$(go list -e -f '{{.ImportComment}}' 2>/dev/null || true)"
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if [ -z "$goDir" -a -s .godir ]; then
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goDir="$(cat .godir)"
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fi
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dir="$(pwd -P)"
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if [ "$goDir" ]; then
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goPath="${GOPATH%%:*}" # this just grabs the first path listed in GOPATH, if there are multiple (which is the detection logic "go get" itself uses, too)
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goDirPath="$goPath/src/$goDir"
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mkdir -p "$(dirname "$goDirPath")"
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if [ ! -e "$goDirPath" ]; then
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ln -sfv "$dir" "$goDirPath"
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elif [ ! -L "$goDirPath" ]; then
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echo >&2 "error: $goDirPath already exists but is unexpectedly not a symlink!"
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exit 1
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fi
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goBin="$goPath/bin/$(basename "$goDir")"
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else
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goBin="$(basename "$dir")" # likely "app"
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fi
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case "$cmd" in
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download)
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execCommand=( go get -v -d "$@" )
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if [ "$goDir" ]; then execCommand+=( "$goDir" ); fi
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set -x; exec "${execCommand[@]}"
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;;
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install)
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execCommand=( go install -v "$@" )
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if [ "$goDir" ]; then execCommand+=( "$goDir" ); fi
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set -x; exec "${execCommand[@]}"
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;;
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run)
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set -x; exec "$goBin" "$@"
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;;
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*)
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echo >&2 'error: unknown command:' "$cmd"
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usage >&2
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exit 1
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;;
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esac |