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, 2016, 2017
   5 # GPLv2
   6
   7 USAGE="Usage: ${tgname:-tg} [...] info [--heads | --leaves] [<name>]"
   8
   9 usage()
  10 {
  11         if [ "${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 leaves=
  23
  24 while [ $# -gt 0 ]; do case "$1" in
  25         -h|--help)
  26                 usage
  27                 ;;
  28         --heads)
  29                 heads=1
  30                 ;;
  31         --leaves)
  32                 leaves=1
  33                 ;;
  34         -?*)
  35                 echo "Unknown option: $1" >&2
  36                 usage 1
  37                 ;;
  38         *)
  39                 break
  40                 ;;
  41 esac; shift; done
  42 [ "$heads$leaves" != "11" ] || die "mutually exclusive options --heads and --leaves"
  43 [ $# -gt 0 ] || set -- HEAD
  44 [ $# -eq 1 ] || die "name already specified ($1)"
  45 name="$1"
  46
  47 # true if $1 is an ancestor of (or the same as) $2
  48 is_ancestor()
  49 {
  50         [ "$(git rev-list --count --max-count=1 "$1" --not "$2" --)" = "0" ]
  51 }
  52
  53 if [ -n "$heads" ]; then
  54         verify="$name"
  55         ! test="$(verify_topgit_branch "${name:-HEAD}" -f)" || verify="refs/heads/$test"
  56         hash="$(git rev-parse --verify --quiet "$verify" --)" || die "no such ref: $name"
  57         $tg summary --tgish-only --heads |
  58         while read -r head; do
  59                 if is_ancestor "$hash" "refs/heads/$head"; then
  60                         printf '%s\n' "$head"
  61                 fi
  62         done
  63         exit 0
  64 fi
  65
  66 name="$(verify_topgit_branch "${name:-HEAD}")"
  67 if [ -n "$leaves" ]; then
  68         find_leaves "$name"
  69         exit 0
  70 fi
  71 base_rev="$(git rev-parse --short --verify "refs/$topbases/$name" -- 2>/dev/null)" ||
  72         die "not a TopGit-controlled branch"
  73
  74 measure="$(measure_branch "refs/heads/$name" "$base_rev")"
  75
  76 echo "Topic Branch: $name ($measure)"
  77 if [ "$(git rev-parse --verify --short "refs/heads/$name" --)" = "$base_rev" ]; then
  78         echo "* No commits."
  79         exit 0
  80 fi
  81
  82 git cat-file blob "$name:.topmsg" | grep ^Subject: || :
  83
  84 echo "Base: $base_rev"
  85 branch_contains "refs/heads/$name" "refs/$topbases/$name" ||
  86         echo "* Base is newer than head! Please run \`$tgdisplay update\`."
  87
  88 if has_remote "$name"; then
  89         echo "Remote Mate: $base_remote/$name"
  90         branch_contains "refs/$topbases/$name" "refs/remotes/$base_remote/${topbases#heads/}/$name" ||
  91                 echo "* Local base is out of date wrt. the remote base."
  92         branch_contains "refs/heads/$name" "refs/remotes/$base_remote/$name" ||
  93                 echo "* Local head is out of date wrt. the remote head."
  94         branch_contains "refs/remotes/$base_remote/$name" "refs/heads/$name" ||
  95                 echo "* Local head is ahead of the remote head."
  96 fi
  97
  98 git cat-file blob "$name:.topdeps" 2>/dev/null |
  99         sed '1{ s/^/Depends: /; n; }; s/^/         /;'
 100
 101 depcheck="$(get_temp tg-depcheck)"
 102 missing_deps=
 103 needs_update "$name" >"$depcheck" || :
 104 if [ -n "$missing_deps" ]; then
 105         echo "MISSING: $missing_deps"
 106 fi
 107 depcheck2="$(get_temp tg-depcheck2)"
 108 sed '/^!/d' <"$depcheck" >"$depcheck2"
 109 if [ -s "$depcheck2" ]; then
 110         echo "Needs update from:"
 111         # 's/ [^ ]* *$//' -- last is $name
 112         # 's/^[:] /:/'    -- don't distinguish base updates
 113         <"$depcheck2" sed -e 's/ [^ ]* *$//' -e 's/^[:] /:/' |
 114                 while read dep chain; do
 115                         case "$dep" in
 116                                 :*)
 117                                         dep="${dep#:}"
 118                                         fulldep="refs/heads/$dep"
 119                                         extradep="refs/$topbases/$dep"
 120                                         ;;
 121                                 *)
 122                                         extradep=
 123                                         case "$dep" in
 124                                                 refs/*)
 125                                                         fulldep="$dep";;
 126                                                 *)
 127                                                         fulldep="refs/heads/$dep";;
 128                                         esac
 129                                         ;;
 130                         esac
 131                         printf '%s' "$dep "
 132                         [ -n "$chain" ] && printf '%s' "(<= $(echol "$chain" | sed 's/ / <= /')) "
 133                         printf '%s' "($(eval measure_branch '"$fulldep"' '"refs/heads/$name"' ${extradep:+\"\$extradep\"}))"
 134                         echo
 135                 done | sed 's/^/        /'
 136 else
 137         echo "Up-to-date${missing_deps:+ (except for missing dependencies)}."
 138 fi
 139
 140 # vim:noet