initial broken release

README.md

@@ -1,2 +1,17 @@
 # go-downloader
 The inverse of go-releaser.
+
+reads a gorelease.yaml file and generates a posix shell
+script to download it that works on any OS (with exception of windows).
+
+
+Useful in CI/CD systems such as travis-ci.org
+
+* Much faster then 'go get'
+* Make sure your local environment (macOS) and the CI are using the exact same versions.
+
+## Yes, it's true.
+
+It's a go program that reads a YAML file that uses a template to make a bash file.
+
+

download-hugo.sh

@@ -0,0 +1,112 @@
+#!/bin/sh
+set -e
+
+# Hugo binary downloader.
+#
+# Downloads the appropriate binary for macOS or linux
+# to speed up your CI buids and to make sure your local Hugo
+# is the same as the Hugo your CI/CD uses.
+#
+# Assumes curl is installed and `tar` supports the `-C` flag
+# (change directory before executing)
+#
+# Why:
+#
+# 1. go get is slow
+#
+# "go get ...hugo..." can take up to 30 seconds on travis.ci.
+# but downloading directly from GitHub releases takes 0.3 seconds.
+#
+# 2. making sure the local version is the same as travis.ci
+#
+# Best practice is to make sure your local development version of Hugo
+# is the same as what your CI/CD system (e.g. travis, circle-ci, etc)
+# is using.  This makes sure everyone is using the exact same version.
+#
+# FYI: URLs on GitHub look like this:
+# https://github.com/spf13/hugo/releases/download/v0.20.7/hugo_0.20.7_Linux-64bit.tar.gz
+#
+
+# Set the version on the command line 
+# as the first arg.
+#
+# ./download-hugo.sh spf13/hugo 0.20.0
+#
+PATH=$1
+VERSION=$2
+OWNER=$(dirname $PATH)
+REPO=$(basename $PATH)
+if [ -z "${OWNER}" or -z "${VERSION}"
+  echo ""
+  echo "Hugo binary downloader"
+  echo ""
+  echo "Usage:"
+  echo "   $0: [owner/repo] [version]"
+  echo "   where [owner/repo] is the GitHub.com identifier.
+  echo "   where [version] is from the matching releases page.
+  echo ""
+  echo "   for example "
+  echo "  $0 spf13/hugo 0.20.7  (see https://github.com/spf13/hugo/releases)"
+  echo ""
+  exit 1
+fi
+
+
+# strip leading "v" if any.
+# tarball doesn't use "v", but URL does.
+VERSION=${VERSION#v}
+
+BINDIR="./bin"
+mkdir -p ${BINDIR}
+HUGO=${BINDIR}/hugo
+
+# default TMPDIR to /tmp
+# oddly not set on travis
+TMPDIR=${TMPDIR:-/tmp}
+
+# Do we need to get hugo?
+#
+#
+if [ -f ${HUGO} ]; then
+  if ${HUGO} version | grep -q ${VERSION}; then
+     echo "Hugo ${VERSION} installed"
+     exit 0
+  fi
+fi
+
+# What OS?
+#
+# Translate what the OS claims it is to what
+# Hugo GitHub releases uses
+#
+OS=$(uname -s)
+case ${OS} in
+Darwin)
+  OS=macOS
+  ;;
+esac  
+
+# Are we 64-bits or 32-bits?
+#
+#
+CPU=$(uname -m)
+case ${CPU} in
+x86_64)
+  CPU=64bit
+  ;;
+i386)
+  CPU=32bit
+  ;;
+*) echo "unknown CPU: ${HOSTCPU}"
+  exit 1
+esac
+
+TARBALL=hugo_${VERSION}_${OS}-${CPU}.tar.gz
+REPO=spf13/hugo
+URL=https://github.com/${REPO}/releases/download/v${VERSION}/${TARBALL}
+echo "Downloading ${TARBALL}"
+curl -sSL -o ${TMPDIR}/${TARBALL} ${URL}
+tar -C ${TMPDIR} -xzf ${TMPDIR}/${TARBALL}
+cp ${TMPDIR}/hugo ${HUGO}
+${HUGO} version
+

main.go

@@ -0,0 +1,86 @@
+package main
+
+import (
+	"text/template"
+	"fmt"
+
+	"github.com/goreleaser/goreleaser/config"
+)
+
+// converts the given name template to it's equivalent in shell
+// except for the default goreleaser templates, templates with
+// conditionals will return an error
+//
+// {{ .Binary }} --->  ${BINARY}, etc.
+//
+func nameTplInShell(target buildTarget) (string, error) {
+	// TODO: error on conditionals
+	if target == "{{ .Binary }}_{{ .Os }}_{{ .Arch }}{{ if .Arm }}v{{ .Arm }}{{ end }}" {
+		prefix = "if [ ! -z \"${ARM}\" ]; then ARM=\"v$ARM\"; fi"
+		target = "{{ .Binary }}_{{ .Os }}_{{ .Arch }}{{ .Arm }}"
+	var varmap  = map[string]string{
+		"Os": "${OS}",
+		"Arch": "${ARCH}",
+		"Arm": "${ARM}",
+		"Version": "${VERSION}",
+		"Tag": "${TAG}",
+		"Binary": ${BINARY}",
+	}
+
+	var out bytes.Buffer
+	t, err := template.New("name").Parse(target)
+	if err != nil {
+		return "", err
+	}
+	err = t.Execute(&out, varmap)
+	return out.String(), err
+}
+
+var tplsrc = `#!/bin/sh
+set -e
+
+BINARY={{ .Binary }}
+
+VERSION=$1
+if [ -z "${VERSION}" ]; then
+  echo ""
+  echo "Usage: $0 [version]"
+  echo ""
+  exit 1
+fi
+
+OS=$(uname -s)
+ARCH=$(uname -m)
+VERSION=${VERSION#v}
+BINDIR=${BINDIR:-./bin}
+EXE=${BINDIR}/${BINARY}
+TMPDIR=${TMPDIR:-/tmp}
+
+case ${OS} in 
+
+esac
+
+case ${ARCH} in
+
+esac
+
+if [ ! -d "${BINDIR}" ]; then
+  mkdir -p ${BINDIR}
+fi
+
+NAME={{ .Name }}
+
+TARBALL=${NAME}.tar.gz
+REPO=spf13/hugo
+URL=https://github.com/${REPO}/releases/download/v${VERSION}/${TARBALL}
+echo "Downloading ${TARBALL}"
+curl -sSL -o ${TMPDIR}/${TARBALL} ${URL}
+tar -C ${TMPDIR} -xzf ${TMPDIR}/${TARBALL}
+cp ${TMPDIR}/hugo ${HUGO}
+`
+
+func main() {
+
+
+
+}