webi/template.bash

   1 #!/bin/bash
   2
   3 {
   4
   5 set -e
   6 set -u
   7
   8 #WEBI_PKG=
   9 #WEBI_NAME=
  10 # TODO should this be BASEURL instead?
  11 #WEBI_HOST=
  12 #WEBI_RELEASES=
  13 #WEBI_CSV=
  14 #WEBI_TAG=
  15 #WEBI_VERSION=
  16 #WEBI_MAJOR=
  17 #WEBI_MINOR=
  18 #WEBI_PATCH=
  19 # TODO not sure if BUILD is the best name for this
  20 #WEBI_BUILD=
  21 #WEBI_LTS=
  22 #WEBI_CHANNEL=
  23 #WEBI_EXT=
  24 #WEBI_PKG_URL=
  25 #WEBI_PKG_FILE=
  26 export WEBI_HOST
  27
  28 ##
  29 ## Set up tmp, download, and install directories
  30 ##
  31
  32 WEBI_TMP=${WEBI_TMP:-"$(mktemp -d -t webinstall-${WEBI_PKG:-}.XXXXXXXX)"}
  33
  34 mkdir -p "$HOME/Downloads"
  35 mkdir -p "$HOME/.local/bin"
  36 mkdir -p "$HOME/.local/opt"
  37
  38 ##
  39 ## Detect http client
  40 ##
  41 set +e
  42 export WEBI_CURL="$(command -v curl)"
  43 export WEBI_WGET="$(command -v wget)"
  44 set -e
  45
  46 webi_check() {
  47     # Test for existing version
  48     set +e
  49     pkg_current_cmd="$(command -v "$pkg_cmd_name")"
  50     set -e
  51     my_current_version=""
  52     if [ -n "$pkg_current_cmd" ]; then
  53         pkg_current_version="$(pkg_get_current_version)"
  54         # remove trailing '.0's for golang's sake
  55         my_current_version="$(echo $pkg_current_version | sed 's:\.0::g')"
  56         my_new_version="$(echo $WEBI_VERSION | sed 's:\.0::g')"
  57         my_canonical_name="$(pkg_format_cmd_version "$WEBI_VERSION")"
  58         if [ "$my_new_version" == "$my_current_version" ]; then
  59             echo "$my_canonical_name already installed at $pkg_current_cmd"
  60             exit 0
  61         else
  62             if [ "$pkg_current_cmd" != "$pkg_common_cmd" ]; then
  63                 echo "WARN: possible conflict between $my_canonical_name and $pkg_current_version at $pkg_current_cmd"
  64             fi
  65             if [ -x "$pkg_new_cmd" ]; then
  66                 pkg_switch_version
  67                 echo "switched to $my_canonical_name at $pkg_new_opt"
  68                 exit 0
  69             fi
  70           fi
  71     fi
  72 }
  73
  74 webi_download() {
  75     if [ -n "${1:-}" ]; then
  76         my_url="$1"
  77     else
  78         if [ "error" == "$WEBI_CHANNEL" ]; then
  79             echo "Could not find $WEBI_NAME v$WEBI_VERSION"
  80             exit 1
  81         fi
  82         my_url="$WEBI_PKG_URL"
  83         echo "Downloading $WEBI_NAME v$WEBI_VERSION"
  84     fi
  85     if [ -n "${2:-}" ]; then
  86         my_dl="$2"
  87     else
  88         my_dl="$HOME/Downloads/$WEBI_PKG_FILE"
  89     fi
  90
  91     if [ -n "$WEBI_WGET" ]; then
  92         # wget has resumable downloads
  93         # TODO wget -c --content-disposition "$my_url"
  94         set +e
  95         wget -q --show-progress -c "$my_url" --user-agent="wget $WEBI_UA" -O "$my_dl"
  96         if ! [ $? -eq 0 ]; then
  97           echo "failed to download from $WEBI_PKG_URL"
  98           exit 1
  99         fi
 100         set -e
 101     else
 102         # BSD curl is non-resumable, hence we don't bother
 103         # TODO curl -fsSL --remote-name --remote-header-name --write-out "$my_url"
 104         curl -fSL "$my_url" -H "User-Agent: curl $WEBI_UA" -o "$my_dl"
 105     fi
 106 }
 107
 108 webi_extract() {
 109     pushd "$WEBI_TMP" 2>&1 >/dev/null
 110         if [ "tar" == "$WEBI_EXT" ]; then
 111             echo "Extracting $HOME/Downloads/$WEBI_PKG_FILE"
 112             tar xf "$HOME/Downloads/$WEBI_PKG_FILE"
 113         elif [ "zip" == "$WEBI_EXT" ]; then
 114             echo "Extracting $HOME/Downloads/$WEBI_PKG_FILE"
 115             unzip "$HOME/Downloads/$WEBI_PKG_FILE"
 116         elif [ "exe" == "$WEBI_EXT" ]; then
 117             # do nothing (but don't leave an empty if block either)
 118             echo -n ""
 119         elif [ "xz" == "$WEBI_EXT" ]; then
 120             echo "Inflating $HOME/Downloads/$WEBI_PKG_FILE"
 121             unxz -c "$HOME/Downloads/$WEBI_PKG_FILE" > $(basename "$WEBI_PKG_FILE")
 122         else
 123             # do nothing
 124             echo "Failed to extract $HOME/Downloads/$WEBI_PKG_FILE"
 125             exit 1
 126         fi
 127     popd 2>&1 >/dev/null
 128 }
 129
 130 webi_path_add() {
 131     # make sure that we don't recursively install pathman with webi
 132     my_path="$PATH"
 133     export PATH="$HOME/.local/bin:$PATH"
 134     set +e
 135     my_pathman=$(command -v pathman)
 136     set -e
 137     export PATH="$my_path"
 138
 139     # install pathman if not already installed
 140     if [ -z "$my_pathman" ]; then
 141         "$HOME/.local/bin/webi" pathman
 142         "$HOME/.local/bin/pathman" add "$HOME/.local/bin"
 143         export PATH="$HOME/.local/bin:$PATH"
 144     fi
 145
 146     # in case pathman was recently installed and the PATH not updated
 147     "$HOME/.local/bin/pathman" add "$1"
 148 }
 149
 150 ##
 151 ##
 152 ## BEGIN user-submited script
 153 ##
 154 ##
 155
 156 {{ installer }}
 157
 158 ##
 159 ##
 160 ## END user-submitted script
 161 ##
 162 ##
 163
 164 }