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   3 #    nailing-cargo: wrapper to use unpublished local crates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  31 #  https://stackoverflow.com/questions/33025887/how-to-use-a-local-unpublished-crate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 if test -e ../Cargo.nail-env; then
  49         . ../Cargo.nail-env
  50 fi
  51
  52 exec 204<../Cargo.nail
  53 while read <&204 what where; do
  54         if [ "x$what" = x- ]; then continue; fi
  55         if [ "x$what" = 'x#' ]; then continue; fi
  56         qwhere="${where//\//\\/}"
  57         sed+='
  58                 /{.*path *=/ b
  59                 s/^'$what' *= *\(\".*\"\) *$/'$what' = { version = \1 }/;
  60                 s#^'$what' *= *{#'$what' = { path = "'"${PWD%/*}"'/'"${qwhere}"'", #;
  61                 /^'$what' *=/ s/version *= *\"[^"]*\"//;
  62                 /^'$what' *=/ s/, *\([,}]\)/\1/;
  63         '
  64 done
  65 sed+='}
  66 '
  67
  68 exec 204<../Cargo.nail
  69 while read <&204 what where; do
  70         if [ "x$what" = 'x#' ]; then continue; fi
  71         wf=../$where/$f
  72         rm -f $wf.nailing~
  73         sed <$wf >$wf.nailing~ "$sed"
  74 done
  75
  76 exec 204<../Cargo.nail
  77 while read <&204 what where; do
  78         if [ "x$what" = 'x#' ]; then continue; fi
  79         wf=../$where/$f
  80         if ! test -e $wf.unnailed~; then
  81                 ln $wf $wf.unnailed~
  82         fi
  83 done
  84
  85 trap '
  86         set +e
  87         while read <&203 what where; do
  88                 if [ "x$what" = "x#" ]; then continue; fi
  89                 wf=../$where/$f
  90                 if test -e $wf.unnailed~; then
  91                         rm -f $wf.nailed~
  92                         ln $wf $wf.nailed~
  93                         mv -f $wf.unnailed~ $wf
  94                 fi
  95         done
  96         echo >&2 'Unnailed'
  97 ' EXIT
  98
  99 exec 204<../Cargo.nail
 100 printf >&2 'Nailing'
 101 while read <&204 what where; do
 102         if [ "x$what" = 'x#' ]; then continue; fi
 103         wf=../$where/$f
 104         printf >&2 ' %s' "$what"
 105         if cmp -s $wf.nailed~ $wf.nailing~; then
 106                 mv -f $wf.nailed~ $wf
 107                 rm -f $wf.nailing
 108         else
 109                 mv -f $wf.nailing~ $wf
 110                 rm -f $wf.nailed
 111         fi
 112 done
 113 echo >&2
 114
 115 "$@"