nailing-cargo

   1 #!/bin/bash
   2
   3 #    nailing-cargo: wrapper to use unpublished local crates
   4 #
   5 #    Copyright (C) 2019 Ian Jackson
   6 #
   7 #    This program is free software: you can redistribute it and/or modify
   8 #    it under the terms of the GNU Affero General Public License as
   9 #    published by the Free Software Foundation, either version 3 of the
  10 #    License, or (at your option) any later version.
  11 #
  12 #    This program is distributed in the hope that it will be useful,
  13 #    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 #    GNU Affero General Public License for more details.
  16 #
  17 #    You should have received a copy of the GNU Affero General Public License
  18 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 set -e
  21
  22 # example usages:
  23 #   ../nailing-cargo/nailing-cargo make
  24 #   ../nailing-cargo/nailing-cargo cargo build
  25 #   CARGO='../nailing-cargo/nailing-cargo cargo' make
  26
  27
  28 # Why do we need this ?
  29 #
  30 #  https://github.com/rust-lang/cargo/issues/6713
  31 #  https://stackoverflow.com/questions/33025887/how-to-use-a-local-unpublished-crate
  32 #  https://github.com/rust-lang/cargo/issues/1481
  33
  34
  35 lock=${PWD%/*}/.nail.lock
  36 if [ "x$NAILING_CARGO" != "x$lock" ]; then
  37         NAILING_CARGO=$lock \
  38         exec with-lock-ex -w "$lock" "$0" "$@"
  39 fi
  40
  41 exec 203<../Cargo.nail
  42 f=Cargo.toml
  43
  44 sed='
  45 /^ *\[dependencies\]/,/^ \[/{
  46 '
  47
  48 exec 204<../Cargo.nail
  49 while read <&204 what where; do
  50         if [ "x$what" = x- ]; then continue; fi
  51         if [ "x$what" = 'x#' ]; then continue; fi
  52         qwhere="${where//\//\\/}"
  53         sed+='
  54                 s/^'$what' *= *\(\".*\"\) *$/'$what' = { version = \1 }/;
  55                 s/^'$what' *= *{/'$what' = { path = "..\/'"${qwhere}"'", /;
  56                 /^'$what' *=/ s/version *= *\"[^"]*\"//;
  57                 /^'$what' *=/ s/, *\([,}]\)/\1/;
  58         '
  59 done
  60 sed+='}
  61 '
  62
  63 exec 204<../Cargo.nail
  64 while read <&204 what where; do
  65         if [ "x$what" = 'x#' ]; then continue; fi
  66         wf=../$where/$f
  67         rm -f $wf.nailing~
  68         sed <$wf >$wf.nailing~ "$sed"
  69 done
  70
  71 exec 204<../Cargo.nail
  72 while read <&204 what where; do
  73         if [ "x$what" = 'x#' ]; then continue; fi
  74         wf=../$where/$f
  75         if ! test -e $wf.unnailed~; then
  76                 ln $wf $wf.unnailed~
  77         fi
  78 done
  79
  80 trap '
  81         set +e
  82         while read <&203 what where; do
  83                 if [ "x$what" = "x#" ]; then continue; fi
  84                 wf=../$where/$f
  85                 if test -e $wf.unnailed~; then
  86                         rm -f $wf.nailed~
  87                         ln $wf $wf.nailed~
  88                         mv -f $wf.unnailed~ $wf
  89                 fi
  90         done
  91         echo >&2 'Unnailed'
  92 ' EXIT
  93
  94 exec 204<../Cargo.nail
  95 printf >&2 'Nailing'
  96 while read <&204 what where; do
  97         if [ "x$what" = 'x#' ]; then continue; fi
  98         wf=../$where/$f
  99         printf >&2 ' %s' "$what"
 100         if cmp -s $wf.nailed~ $wf.nailing~; then
 101                 mv -f $wf.nailed~ $wf
 102                 rm -f $wf.nailing
 103         else
 104                 mv -f $wf.nailing~ $wf
 105                 rm -f $wf.nailed
 106         fi
 107 done
 108 echo >&2
 109
 110 "$@"