134 lines
3.6 KiB
Bash
Executable file
134 lines
3.6 KiB
Bash
Executable file
#!/bin/sh
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# gopm-lite
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# a shell script to download, extract, and link
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# dependencies from a .gopmfile
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# requirements: curl, coreutils
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# Needed environment variables:
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# GOPATH - packages will be linked to $GOPATH/src/
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# GOPMSTORE - where to store downloaded packages
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# Optional environment variables
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# MAXDEPTH - Maximum amount of attempts to recurse
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# and download all packages
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# Defaults to 5
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# Needed arguments:
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# 1 - path to a .gopmfile
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if [ -z "$GOPATH" -o -z "$GOPMSTORE" ]; then
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printf 'Need the following environment variables defined:\n'
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printf 'GOPATH\n'
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printf 'GOPMSTORE\n'
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exit 1
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fi
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if [ -z "$1" ]; then
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printf 'Usage: %s /path/to/.gopmfile\n' "$0"
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exit 1
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fi
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if [ -z "$MAXDEPTH" ]; then
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MAXDEPTH=5
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fi
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export MAXDEPTH
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export GOPATH
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export GOPMSTORE
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mkdir -p "${GOPATH}/src"
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mkdir -p "${GOPMSTORE}/archives"
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mkdir -p "${GOPMSTORE}/repos"
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indeps=""
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curdepth=0
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download_and_link() {
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local gopmfile=$1
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local extracted_counter=0
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printf 'Downloading deps for %s\n' "$gopmfile" 1>&2
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while read line; do
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if [ "$line" = "[deps]" ]; then
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indeps="deps"
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continue
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fi
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if [ -z "$line" -a -n "$indeps" ]; then
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break;
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fi
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if [ -z "$indeps" ]; then
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continue;
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fi
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host=""
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user=""
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package=""
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tagish=""
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url=$(printf '%s' "$line" | cut -f1 -d'=' | sed 's/ //g');
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version=$(printf '%s' "$line" | cut -f2 -d'=' | sed 's/ //g');
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host=$(printf '%s' "$url" | cut -f1 -d'/')
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user=$(printf '%s' "$url" | cut -f2 -d'/')
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package=$(printf '%s' "$url" | cut -f3 -d'/')
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if [ -z "$package" ]; then
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package="${user}"
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fi
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if [ "$host" = "gopkg.in" ]; then
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host="github.com"
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if [ "$user" = "$package" ]; then
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package=$(printf '%s' "$package" | cut -f1 -d'.')
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user="go-$package"
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else
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package=$(printf '%s' "$package" | cut -f1 -d'.')
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fi
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fi
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if [ "$host" = "golang.org" ]; then
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host="github.com"
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user="golang"
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fi
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if [ -n "$version" ]; then
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tagish=$(printf '%s' "$version" | cut -f2 -d':')
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else
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tagish="master"
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fi
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if [ ! -e "$GOPMSTORE/archives/$host-$user-$package-$tagish.tar.gz" ]; then
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curl --silent -R -L -o "$GOPMSTORE/archives/$host-$user-$package-$tagish.tar.gz" "https://$host/$user/$package/archive/$tagish.tar.gz"
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fi
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if [ ! -e "$GOPMSTORE/repos/$url.$tagish" ]; then
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mkdir -p "$GOPMSTORE/repos/$url.$tagish"
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tar xf "$GOPMSTORE/archives/$host-$user-$package-$tagish.tar.gz" -C "$GOPMSTORE/repos/$url.$tagish" --strip-components=1
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fi
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if [ ! -e "$GOPATH/src/$url" ]; then
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mkdir -p "$GOPATH/src/$url"
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rmdir "$GOPATH/src/$url"
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ln -s "$GOPMSTORE/repos/$url.$tagish" "$GOPATH/src/$url"
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extracted_counter=$((extracted_counter+1))
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fi
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done <"$gopmfile"
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printf '%s' "$extracted_counter"
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}
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packages_processed=$(download_and_link $1)
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printf 'Done with %s packages\n' "$packages_processed" 1>&2
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curdepth=1
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export -f download_and_link
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while [ ! "$packages_processed" = "0" ]; do
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if [ "$curdepth" = "$MAXDEPTH" ]; then
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break
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fi
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packages_processed=$(find -L "$GOPATH/src" -name '.gopmfile' -exec bash -c 'download_and_link "$0"' {} \; | awk '{s+=$1} END {print s}')
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curdepth=$((curdepth+1))
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printf 'Done with %s packages\n' "$packages_processed" 1>&2
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done
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exit 0
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