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1 #!/bin/sh
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2 #
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3 # An example hook script to blocks unannotated tags from entering.
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4 # Called by git-receive-pack with arguments: refname sha1-old sha1-new
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5 #
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6 # To enable this hook, rename this file to "update".
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7 #
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8 # Config
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9 # ------
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10 # hooks.allowunannotated
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11 # This boolean sets whether unannotated tags will be allowed into the
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12 # repository. By default they won't be.
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13 # hooks.allowdeletetag
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14 # This boolean sets whether deleting tags will be allowed in the
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15 # repository. By default they won't be.
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16 # hooks.allowmodifytag
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17 # This boolean sets whether a tag may be modified after creation. By default
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18 # it won't be.
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19 # hooks.allowdeletebranch
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20 # This boolean sets whether deleting branches will be allowed in the
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21 # repository. By default they won't be.
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22 # hooks.denycreatebranch
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23 # This boolean sets whether remotely creating branches will be denied
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24 # in the repository. By default this is allowed.
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25 #
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26
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27 # --- Command line
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28 refname="$1"
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29 oldrev="$2"
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30 newrev="$3"
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31
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32 # --- Safety check
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33 if [ -z "$GIT_DIR" ]; then
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34 echo "Don't run this script from the command line." >&2
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35 echo " (if you want, you could supply GIT_DIR then run" >&2
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36 echo " $0 <ref> <oldrev> <newrev>)" >&2
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37 exit 1
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38 fi
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39
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40 if [ -z "$refname" -o -z "$oldrev" -o -z "$newrev" ]; then
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41 echo "Usage: $0 <ref> <oldrev> <newrev>" >&2
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42 exit 1
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43 fi
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44
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45 # --- Config
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46 allowunannotated=$(git config --bool hooks.allowunannotated)
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47 allowdeletebranch=$(git config --bool hooks.allowdeletebranch)
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48 denycreatebranch=$(git config --bool hooks.denycreatebranch)
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49 allowdeletetag=$(git config --bool hooks.allowdeletetag)
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50 allowmodifytag=$(git config --bool hooks.allowmodifytag)
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51
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52 # check for no description
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53 projectdesc=$(sed -e '1q' "$GIT_DIR/description")
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54 case "$projectdesc" in
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55 "Unnamed repository"* | "")
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56 echo "*** Project description file hasn't been set" >&2
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57 exit 1
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58 ;;
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59 esac
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60
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61 # --- Check types
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62 # if $newrev is 0000...0000, it's a commit to delete a ref.
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63 zero="0000000000000000000000000000000000000000"
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64 if [ "$newrev" = "$zero" ]; then
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65 newrev_type=delete
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66 else
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67 newrev_type=$(git-cat-file -t $newrev)
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68 fi
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69
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70 case "$refname","$newrev_type" in
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71 refs/tags/*,commit)
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72 # un-annotated tag
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73 short_refname=${refname##refs/tags/}
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74 if [ "$allowunannotated" != "true" ]; then
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75 echo "*** The un-annotated tag, $short_refname, is not allowed in this repository" >&2
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76 echo "*** Use 'git tag [ -a | -s ]' for tags you want to propagate." >&2
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77 exit 1
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78 fi
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79 ;;
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80 refs/tags/*,delete)
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81 # delete tag
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82 if [ "$allowdeletetag" != "true" ]; then
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83 echo "*** Deleting a tag is not allowed in this repository" >&2
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84 exit 1
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85 fi
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86 ;;
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87 refs/tags/*,tag)
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88 # annotated tag
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89 if [ "$allowmodifytag" != "true" ] && git rev-parse $refname > /dev/null 2>&1
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90 then
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91 echo "*** Tag '$refname' already exists." >&2
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92 echo "*** Modifying a tag is not allowed in this repository." >&2
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93 exit 1
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94 fi
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95 ;;
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96 refs/heads/*,commit)
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97 # branch
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98 if [ "$oldrev" = "$zero" -a "$denycreatebranch" = "true" ]; then
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99 echo "*** Creating a branch is not allowed in this repository" >&2
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100 exit 1
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101 fi
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102 ;;
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103 refs/heads/*,delete)
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104 # delete branch
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105 if [ "$allowdeletebranch" != "true" ]; then
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106 echo "*** Deleting a branch is not allowed in this repository" >&2
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107 exit 1
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108 fi
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109 ;;
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110 refs/remotes/*,commit)
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111 # tracking branch
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112 ;;
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113 refs/remotes/*,delete)
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114 # delete tracking branch
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115 if [ "$allowdeletebranch" != "true" ]; then
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116 echo "*** Deleting a tracking branch is not allowed in this repository" >&2
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117 exit 1
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118 fi
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119 ;;
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120 *)
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121 # Anything else (is there anything else?)
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122 echo "*** Update hook: unknown type of update to ref $refname of type $newrev_type" >&2
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123 exit 1
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124 ;;
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125 esac
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126
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127 # --- Finished
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128 exit 0
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