github.com/shravanasati/hydra@v1.0.1-0.20240122045627-1082d2ed50d2/hydra/hooks/update.sample (about)

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