tg-info.sh

   1 #!/bin/sh
   2 # TopGit - A different patch queue manager
   3 # Copyright (C) Petr Baudis <pasky@suse.cz>  2008
   4 # Copyright (C) Kyle J. McKay <mackyle@gmail.com>  2015
   5 # GPLv2
   6
   7 USAGE="Usage: ${tgname:-tg} [...] info [--heads] [<name>]"
   8
   9 usage()
  10 {
  11         if [ "${1:-0}" != 0 ]; then
  12                 printf '%s\n' "$USAGE" >&2
  13         else
  14                 printf '%s\n' "$USAGE"
  15         fi
  16         exit ${1:-0}
  17 }
  18
  19 ## Parse options
  20
  21 heads=
  22
  23 while [ $# -gt 0 ]; do case "$1" in
  24         -h|--help)
  25                 usage
  26                 ;;
  27         --heads)
  28                 heads=1
  29                 ;;
  30         -?*)
  31                 echo "Unknown option: $1" >&2
  32                 usage 1
  33                 ;;
  34         *)
  35                 break
  36                 ;;
  37 esac; shift; done
  38 [ $# -gt 0 ] || set -- HEAD
  39 [ $# -eq 1 ] || die "name already specified ($1)"
  40 name="$1"
  41
  42 # true if $1 is an ancestor of (or the same as) $2
  43 is_ancestor()
  44 {
  45         [ "$(git rev-list --count --max-count=1 "$1" --not "$2" --)" = "0" ]
  46 }
  47
  48 if [ -n "$heads" ]; then
  49         verify="$name"
  50         ! test="$(verify_topgit_branch "${name:-HEAD}" -f)" || verify="refs/heads/$test"
  51         hash="$(git rev-parse --verify --quiet "$verify" --)" || die "no such ref: $name"
  52         $tg summary --tgish-only --heads |
  53         while read -r head; do
  54                 if is_ancestor "$hash" "refs/heads/$head"; then
  55                         printf '%s\n' "$head"
  56                 fi
  57         done
  58         exit 0
  59 fi
  60
  61 name="$(verify_topgit_branch "${name:-HEAD}")"
  62 base_rev="$(git rev-parse --short --verify "refs/$topbases/$name" -- 2>/dev/null)" ||
  63         die "not a TopGit-controlled branch"
  64
  65 measure="$(measure_branch "refs/heads/$name" "$base_rev")"
  66
  67 echo "Topic Branch: $name ($measure)"
  68 if [ "$(git rev-parse --verify --short "refs/heads/$name" --)" = "$base_rev" ]; then
  69         echo "* No commits."
  70         exit 0
  71 fi
  72
  73 git cat-file blob "$name:.topmsg" | grep ^Subject: || :
  74
  75 echo "Base: $base_rev"
  76 branch_contains "refs/heads/$name" "refs/$topbases/$name" ||
  77         echo "* Base is newer than head! Please run \`$tgdisplay update\`."
  78
  79 if has_remote "$name"; then
  80         echo "Remote Mate: $base_remote/$name"
  81         branch_contains "refs/$topbases/$name" "refs/remotes/$base_remote/$topbases/$name" ||
  82                 echo "* Local base is out of date wrt. the remote base."
  83         branch_contains "refs/heads/$name" "refs/remotes/$base_remote/$name" ||
  84                 echo "* Local head is out of date wrt. the remote head."
  85         branch_contains "refs/remotes/$base_remote/$name" "refs/heads/$name" ||
  86                 echo "* Local head is ahead of the remote head."
  87 fi
  88
  89 git cat-file blob "$name:.topdeps" 2>/dev/null |
  90         sed '1{ s/^/Depends: /; n; }; s/^/         /;'
  91
  92 depcheck="$(get_temp tg-depcheck)"
  93 missing_deps=
  94 needs_update "$name" >"$depcheck" || :
  95 if [ -n "$missing_deps" ]; then
  96         echo "MISSING: $missing_deps"
  97 fi
  98 depcheck2="$(get_temp tg-depcheck2)"
  99 sed '/^!/d' <"$depcheck" >"$depcheck2"
 100 if [ -s "$depcheck2" ]; then
 101         echo "Needs update from:"
 102         # 's/ [^ ]* *$//' -- last is $name
 103         # 's/^[:] /:/'    -- don't distinguish base updates
 104         <"$depcheck2" sed -e 's/ [^ ]* *$//' -e 's/^[:] /:/' |
 105                 while read dep chain; do
 106                         case "$dep" in
 107                                 :*)
 108                                         dep="${dep#:}"
 109                                         fulldep="refs/heads/$dep"
 110                                         extradep="refs/$topbases/$dep"
 111                                         ;;
 112                                 *)
 113                                         extradep=
 114                                         case "$dep" in
 115                                                 refs/*)
 116                                                         fulldep="$dep";;
 117                                                 *)
 118                                                         fulldep="refs/heads/$dep";;
 119                                         esac
 120                                         ;;
 121                         esac
 122                         printf '%s' "$dep "
 123                         [ -n "$chain" ] && printf '%s' "(<= $(echol "$chain" | sed 's/ / <= /')) "
 124                         printf '%s' "($(eval measure_branch '"$fulldep"' '"refs/heads/$name"' ${extradep:+\"\$extradep\"}))"
 125                         echo
 126                 done | sed 's/^/        /'
 127 else
 128         echo "Up-to-date${missing_deps:+ (except for missing dependencies)}."
 129 fi
 130
 131 # vim:noet