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scripts/cocci: Patch to remove unnecessary memory_region_set_readonly()
[mirror_qemu.git] / scripts / git-submodule.sh
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1#!/bin/sh
2#
3# This code is licensed under the GPL version 2 or later. See
4# the COPYING file in the top-level directory.
5
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6substat=".git-submodule-status"
7
8command=$1
9shift
37b5e74e 10maybe_modules="$@"
aef45d51 11
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12test -z "$GIT" && GIT=git
13
14error() {
15 echo "$0: $*"
16 echo
17 echo "Unable to automatically checkout GIT submodules '$modules'."
18 echo "If you require use of an alternative GIT binary (for example to"
19 echo "enable use of a transparent proxy), then please specify it by"
20 echo "running configure by with the '--with-git' argument. e.g."
21 echo
22 echo " $ ./configure --with-git='tsocks git'"
23 echo
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24 echo "Alternatively you may disable automatic GIT submodule checkout"
25 echo "with:"
26 echo
4e811296 27 echo " $ ./configure --disable-git-update"
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28 echo
29 echo "and then manually update submodules prior to running make, with:"
30 echo
bff8a0bb 31 echo " $ scripts/git-submodule.sh update $modules"
f62bbee5 32 echo
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33 exit 1
34}
35
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36modules=""
37for m in $maybe_modules
38do
39 $GIT submodule status $m 1> /dev/null 2>&1
40 if test $? = 0
41 then
42 modules="$modules $m"
43 else
44 echo "warn: ignoring non-existent submodule $m"
45 fi
46done
47
49ad3cfa 48if test -n "$maybe_modules" && ! test -e ".git"
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49then
50 echo "$0: unexpectedly called with submodules but no git checkout exists"
51 exit 1
52fi
53
54case "$command" in
55status)
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56 if test -z "$maybe_modules"
57 then
58 test -s ${substat} && exit 1 || exit 0
59 fi
60
aef45d51 61 test -f "$substat" || exit 1
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62 for module in $modules; do
63 CURSTATUS=$($GIT submodule status $module)
64 OLDSTATUS=$(cat $substat | grep $module)
65 if test "$CURSTATUS" != "$OLDSTATUS"; then
66 exit 1
67 fi
68 done
69 exit 0
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70 ;;
71update)
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72 if test -z "$maybe_modules"
73 then
74 test -e $substat || touch $substat
75 exit 0
76 fi
77
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78 $GIT submodule update --init $modules 1>/dev/null
79 test $? -ne 0 && error "failed to update modules"
80
81 $GIT submodule status $modules > "${substat}"
82 test $? -ne 0 && error "failed to save git submodule status" >&2
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83 ;;
84esac
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85
86exit 0