mirror of
https://gitlab.torproject.org/tpo/core/tor.git
synced 2024-11-24 20:33:31 +01:00
551 lines
16 KiB
Bash
Executable File
551 lines
16 KiB
Bash
Executable File
#!/usr/bin/env bash
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SCRIPT_NAME=$(basename "$0")
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function usage()
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{
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echo "$SCRIPT_NAME [-h] [-n] [-u]"
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echo
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echo " arguments:"
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echo " -h: show this help text"
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echo " -n: dry run mode"
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echo " (default: run commands)"
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echo " -u: if a directory or worktree already exists, use it"
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echo " (default: fail and exit on existing directories)"
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echo
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echo " env vars:"
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echo " required:"
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echo " TOR_FULL_GIT_PATH: where the git repository directories reside."
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echo " You must set this env var, we recommend \$HOME/git/"
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echo " (default: fail if this env var is not set;"
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echo " current: $GIT_PATH)"
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echo
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echo " optional:"
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echo " TOR_MASTER: the name of the directory containing the tor.git clone"
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echo " The tor master git directory is \$GIT_PATH/\$TOR_MASTER"
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echo " (default: tor; current: $TOR_MASTER_NAME)"
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echo " TOR_WKT_NAME: the name of the directory containing the tor"
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echo " worktrees. The tor worktrees are:"
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echo " \$GIT_PATH/\$TOR_WKT_NAME/{maint-*,release-*}"
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echo " (default: tor-wkt; current: $TOR_WKT_NAME)"
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echo " TOR_GIT_ORIGIN_PULL: the origin remote pull URL."
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echo " (current: $GIT_ORIGIN_PULL)"
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echo " TOR_GIT_ORIGIN_PUSH: the origin remote push URL"
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echo " (current: $GIT_ORIGIN_PUSH)"
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echo " TOR_UPSTREAM_REMOTE_NAME: the default upstream remote."
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echo " If \$TOR_UPSTREAM_REMOTE_NAME is not 'origin', we have a"
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echo " separate upstream remote, and we don't push to origin."
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echo " (default: $DEFAULT_UPSTREAM_REMOTE)"
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echo " TOR_GITHUB_PULL: the tor-github remote pull URL"
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echo " (current: $GITHUB_PULL)"
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echo " TOR_GITHUB_PUSH: the tor-github remote push URL"
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echo " (current: $GITHUB_PUSH)"
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echo " TOR_EXTRA_CLONE_ARGS: extra arguments to git clone"
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echo " (current: $TOR_EXTRA_CLONE_ARGS)"
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echo " TOR_EXTRA_REMOTE_NAME: the name of an extra remote"
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echo " This remote is not pulled by this script or git-pull-all.sh."
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echo " This remote is not pushed by git-push-all.sh."
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echo " (current: $TOR_EXTRA_REMOTE_NAME)"
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echo " TOR_EXTRA_REMOTE_PULL: the extra remote pull URL."
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echo " (current: $TOR_EXTRA_REMOTE_PULL)"
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echo " TOR_EXTRA_REMOTE_PUSH: the extra remote push URL"
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echo " (current: $TOR_EXTRA_REMOTE_PUSH)"
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echo " we recommend that you set these env vars in your ~/.profile"
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}
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#################
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# Configuration #
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#################
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# Don't change this configuration - set the env vars in your .profile
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# Where are all those git repositories?
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GIT_PATH=${TOR_FULL_GIT_PATH:-"FULL_PATH_TO_GIT_REPOSITORY_DIRECTORY"}
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# The tor master git repository directory from which all the worktree have
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# been created.
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TOR_MASTER_NAME=${TOR_MASTER_NAME:-"tor"}
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# The worktrees location (directory).
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TOR_WKT_NAME=${TOR_WKT_NAME:-"tor-wkt"}
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# Origin repositories
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GIT_ORIGIN_PULL=${TOR_GIT_ORIGIN_PULL:-"https://git.torproject.org/tor.git"}
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GIT_ORIGIN_PUSH=${TOR_GIT_ORIGIN_PUSH:-"git@git-rw.torproject.org:tor.git"}
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# The upstream remote which git.torproject.org/tor.git points to.
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DEFAULT_UPSTREAM_REMOTE=${TOR_UPSTREAM_REMOTE_NAME:-"upstream"}
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# Copy the URLs from origin
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GIT_UPSTREAM_PULL="$GIT_ORIGIN_PULL"
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GIT_UPSTREAM_PUSH="$GIT_ORIGIN_PUSH"
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# And avoid pushing to origin if we have an upstream
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if [ "$DEFAULT_UPSTREAM_REMOTE" != "origin" ]; then
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GIT_ORIGIN_PUSH="No pushes to origin, if there is an upstream"
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fi
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# GitHub repositories
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GITHUB_PULL=${TOR_GITHUB_PULL:-"https://github.com/torproject/tor.git"}
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GITHUB_PUSH=${TOR_GITHUB_PUSH:-"No_Pushing_To_GitHub"}
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##########################
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# Git branches to manage #
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##########################
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# The branches and worktrees need to be modified when there is a new branch,
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# and when an old branch is no longer supported.
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# Configuration of the branches that needs merging. The values are in order:
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# (0) current maint/release branch name
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# (1) Full path of the git worktree
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#
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# First set of arrays are the maint-* branch and then the release-* branch.
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# New arrays need to be in the WORKTREE= array else they aren't considered.
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MAINT_035=( "maint-0.3.5" "$GIT_PATH/$TOR_WKT_NAME/maint-0.3.5" )
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MAINT_040=( "maint-0.4.0" "$GIT_PATH/$TOR_WKT_NAME/maint-0.4.0" )
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MAINT_041=( "maint-0.4.1" "$GIT_PATH/$TOR_WKT_NAME/maint-0.4.1" )
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MAINT_042=( "maint-0.4.2" "$GIT_PATH/$TOR_WKT_NAME/maint-0.4.2" )
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MAINT_MASTER=( "master" "$GIT_PATH/$TOR_MASTER_NAME" )
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RELEASE_035=( "release-0.3.5" "$GIT_PATH/$TOR_WKT_NAME/release-0.3.5" )
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RELEASE_040=( "release-0.4.0" "$GIT_PATH/$TOR_WKT_NAME/release-0.4.0" )
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RELEASE_041=( "release-0.4.1" "$GIT_PATH/$TOR_WKT_NAME/release-0.4.1" )
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RELEASE_042=( "release-0.4.2" "$GIT_PATH/$TOR_WKT_NAME/release-0.4.2" )
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# The master branch path has to be the main repository thus contains the
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# origin that will be used to fetch the updates. All the worktrees are created
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# from that repository.
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ORIGIN_PATH="$GIT_PATH/$TOR_MASTER_NAME"
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# SC2034 -- shellcheck thinks that these are unused. We know better.
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ACTUALLY_THESE_ARE_USED=<<EOF
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${MAINT_035[0]}
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${MAINT_040[0]}
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${MAINT_041[0]}
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${MAINT_042[0]}
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${MAINT_MASTER[0]}
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${RELEASE_035[0]}
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${RELEASE_040[0]}
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${RELEASE_041[0]}
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${RELEASE_042[0]}
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EOF
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#######################
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# Argument processing #
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#######################
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# Controlled by the -n option. The dry run option will just output the command
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# that would have been executed for each worktree.
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DRY_RUN=0
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# Controlled by the -s option. The use existing option checks for existing
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# directories, and re-uses them, rather than creating a new directory.
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USE_EXISTING=0
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USE_EXISTING_HINT="Use existing: '$SCRIPT_NAME -u'."
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while getopts "hnu" opt; do
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case "$opt" in
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h) usage
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exit 0
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;;
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n) DRY_RUN=1
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echo " *** DRY RUN MODE ***"
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;;
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u) USE_EXISTING=1
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echo " *** USE EXISTING DIRECTORIES MODE ***"
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;;
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*)
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echo
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usage
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exit 1
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;;
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esac
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done
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###########################
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# Git worktrees to manage #
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###########################
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WORKTREE=(
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MAINT_035[@]
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RELEASE_035[@]
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MAINT_040[@]
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RELEASE_040[@]
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MAINT_041[@]
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RELEASE_041[@]
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MAINT_042[@]
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RELEASE_042[@]
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MAINT_MASTER[@]
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)
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COUNT=${#WORKTREE[@]}
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#############
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# Constants #
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#############
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# Control characters
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CNRM=$'\x1b[0;0m' # Clear color
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# Bright color
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BGRN=$'\x1b[1;32m'
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BBLU=$'\x1b[1;34m'
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BRED=$'\x1b[1;31m'
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BYEL=$'\x1b[1;33m'
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IWTH=$'\x1b[3;37m'
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# Strings for the pretty print.
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MARKER="${BBLU}[${BGRN}+${BBLU}]${CNRM}"
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SUCCESS="${BGRN}success${CNRM}"
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SKIPPED="${BYEL}skipped${CNRM}"
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FAILED="${BRED}failed${CNRM}"
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####################
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# Helper functions #
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####################
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# Validate the given returned value (error code), print success or failed. The
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# second argument is the error output in case of failure, it is printed out.
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# On failure, this function exits.
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function validate_ret
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{
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if [ "$1" -eq 0 ]; then
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printf "%s\\n" "$SUCCESS"
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else
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printf "%s\\n" "$FAILED"
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printf " %s\\n" "$2"
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exit 1
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fi
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}
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# Validate the given returned value (error code), print success, skipped, or
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# failed. If $USE_EXISTING is 0, fail on error, otherwise, skip on error.
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# The second argument is the error output in case of failure, it is printed
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# out. On failure, this function exits.
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function validate_ret_skip
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{
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if [ "$1" -ne 0 ]; then
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if [ "$USE_EXISTING" -eq "0" ]; then
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# Fail and exit with error
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validate_ret "$1" "$2 $USE_EXISTING_HINT"
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else
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printf "%s\\n" "$SKIPPED"
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printf " %s\\n" "${IWTH}$2${CNRM}"
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# Tell the caller to skip the rest of the function
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return 0
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fi
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fi
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# Tell the caller to continue
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return 1
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}
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# Create a directory, and any missing enclosing directories.
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# If the directory already exists: fail if $USE_EXISTING is 0, otherwise skip.
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function make_directory
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{
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local cmd="mkdir -p '$1'"
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printf " %s Creating directory %s..." "$MARKER" "$1"
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local check_cmd="[ ! -d '$1' ]"
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msg=$( eval "$check_cmd" 2>&1 )
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if validate_ret_skip $? "Directory already exists."; then
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return
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fi
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if [ $DRY_RUN -eq 0 ]; then
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msg=$( eval "$cmd" 2>&1 )
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validate_ret $? "$msg"
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else
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printf "\\n %s\\n" "${IWTH}$cmd${CNRM}"
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fi
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}
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# Create a symlink from the first argument to the second argument
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# If the link already exists: fail if $USE_EXISTING is 0, otherwise skip.
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function make_symlink
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{
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local cmd="ln -s '$1' '$2'"
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printf " %s Creating symlink from %s to %s..." "$MARKER" "$1" "$2"
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local check_cmd="[ ! -e '$2' ]"
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msg=$( eval "$check_cmd" 2>&1 )
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if validate_ret_skip $? "File already exists."; then
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return
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fi
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if [ $DRY_RUN -eq 0 ]; then
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msg=$( eval "$cmd" 2>&1 )
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validate_ret $? "$msg"
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else
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printf "\\n %s\\n" "${IWTH}$cmd${CNRM}"
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fi
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}
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# Go into the directory or repository, even if $DRY_RUN is non-zero.
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# If the directory does not exist, fail and log an error.
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# Otherwise, silently succeed.
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function goto_dir
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{
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if ! cd "$1" 1>/dev/null 2>/dev/null ; then
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printf " %s Changing to directory %s..." "$MARKER" "$1"
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validate_ret 1 "$1: Not found. Stopping."
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fi
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}
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# Clone a repository into a directory.
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# If the directory already exists: fail if $USE_EXISTING is 0, otherwise skip.
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function clone_repo
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{
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local cmd="git clone $TOR_EXTRA_CLONE_ARGS '$1' '$2'"
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printf " %s Cloning %s into %s..." "$MARKER" "$1" "$2"
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local check_cmd="[ ! -d '$2' ]"
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msg=$( eval "$check_cmd" 2>&1 )
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if validate_ret_skip $? "Directory already exists."; then
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# If we skip the clone, we need to do a fetch
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goto_dir "$ORIGIN_PATH"
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fetch_remote "origin"
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return
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fi
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if [ $DRY_RUN -eq 0 ]; then
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msg=$( eval "$cmd" 2>&1 )
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validate_ret $? "$msg"
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else
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printf "\\n %s\\n" "${IWTH}$cmd${CNRM}"
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fi
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}
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# Add a remote by name and URL.
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# If the remote already exists: fail if $USE_EXISTING is 0, otherwise skip.
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function add_remote
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{
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local cmd="git remote add '$1' '$2'"
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printf " %s Adding remote %s at %s..." "$MARKER" "$1" "$2"
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local check_cmd="git remote get-url '$1'"
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msg=$( eval "$check_cmd" 2>&1 )
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ret=$?
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# We don't want a remote, so we invert the exit status
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if validate_ret_skip $(( ! ret )) \
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"Remote already exists for $1 at $msg."; then
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return
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fi
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if [ $DRY_RUN -eq 0 ]; then
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msg=$( eval "$cmd" 2>&1 )
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validate_ret $? "$msg"
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else
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printf "\\n %s\\n" "${IWTH}$cmd${CNRM}"
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fi
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}
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# Set a remote's push URL by name and URL.
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function set_remote_push
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{
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local cmd="git remote set-url --push '$1' '$2'"
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printf " %s Setting remote %s push URL to '%s'..." "$MARKER" "$1" "$2"
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if [ $DRY_RUN -eq 0 ]; then
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msg=$( eval "$cmd" 2>&1 )
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validate_ret $? "$msg"
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else
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printf "\\n %s\\n" "${IWTH}$cmd${CNRM}"
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fi
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}
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# Fetch a remote by name.
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function fetch_remote
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{
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local cmd="git fetch '$1'"
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printf " %s Fetching %s..." "$MARKER" "$1"
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if [ $DRY_RUN -eq 0 ]; then
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msg=$( eval "$cmd" 2>&1 )
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validate_ret $? "$msg"
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else
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printf "\\n %s\\n" "${IWTH}$cmd${CNRM}"
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fi
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}
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# Replace the fetch configs for a remote with config if they match a pattern.
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function replace_fetch_config
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{
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local cmd="git config --replace-all remote.'$1'.fetch '$2' '$3'"
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printf " %s Replacing %s fetch configs for '%s'..." \
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"$MARKER" "$1" "$3"
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if [ $DRY_RUN -eq 0 ]; then
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msg=$( eval "$cmd" 2>&1 )
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validate_ret $? "$msg"
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else
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printf "\\n %s\\n" "${IWTH}$cmd${CNRM}"
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fi
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}
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# Set up the tor-github PR config, so tor-github/pr/NNNN/head points to GitHub
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# PR NNNN. In some repositories, "/head" is optional.
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function set_tor_github_pr_fetch_config
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{
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# Standard branches
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replace_fetch_config tor-github \
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"+refs/heads/*:refs/remotes/tor-github/*" \
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"refs/heads"
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# PRs
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replace_fetch_config "tor-github" \
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"+refs/pull/*:refs/remotes/tor-github/pr/*" \
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"refs/pull.*pr"
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}
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# Add a new worktree for branch at path.
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# If the directory already exists: fail if $USE_EXISTING is 0, otherwise skip.
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function add_worktree
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{
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local cmd="git worktree add '$2' '$1'"
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printf " %s Adding worktree for %s at %s..." "$MARKER" "$1" "$2"
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local check_cmd="[ ! -d '$2' ]"
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msg=$( eval "$check_cmd" 2>&1 )
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if validate_ret_skip $? "Directory already exists."; then
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return
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fi
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if [ $DRY_RUN -eq 0 ]; then
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msg=$( eval "$cmd" 2>&1 )
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validate_ret $? "$msg"
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else
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printf "\\n %s\\n" "${IWTH}$cmd${CNRM}"
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fi
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}
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# Switch to the given branch name.
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# If the branch does not exist: fail.
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function switch_branch
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{
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local cmd="git checkout '$1'"
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printf " %s Switching branch to %s..." "$MARKER" "$1"
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if [ $DRY_RUN -eq 0 ]; then
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msg=$( eval "$cmd" 2>&1 )
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validate_ret $? "$msg"
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else
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printf "\\n %s\\n" "${IWTH}$cmd${CNRM}"
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fi
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}
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# Checkout a new branch with the given branch name.
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# If the branch already exists: fail if $USE_EXISTING is 0, otherwise skip.
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function new_branch
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{
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local cmd="git checkout -b '$1'"
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printf " %s Creating new branch %s..." "$MARKER" "$1"
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local check_cmd="git branch --list '$1'"
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msg=$( eval "$check_cmd" 2>&1 )
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if validate_ret_skip $? "Branch already exists."; then
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return
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fi
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if [ $DRY_RUN -eq 0 ]; then
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msg=$( eval "$cmd" 2>&1 )
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validate_ret $? "$msg"
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else
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printf "\\n %s\\n" "${IWTH}$cmd${CNRM}"
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fi
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}
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# Switch to an existing branch, or checkout a new branch with the given
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# branch name.
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function switch_or_new_branch
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{
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local cmd="git rev-parse --verify '$1'"
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if [ $DRY_RUN -eq 0 ]; then
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# Call switch_branch if there is a branch, or new_branch if there is not
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msg=$( eval "$cmd" 2>&1 )
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RET=$?
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if [ $RET -eq 0 ]; then
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# Branch: (commit id)
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switch_branch "$1"
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elif [ $RET -eq 128 ]; then
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# Not a branch: "fatal: Needed a single revision"
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new_branch "$1"
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else
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# Unexpected return value
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validate_ret $RET "$msg"
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fi
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else
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printf "\\n %s\\n" "${IWTH}$cmd${CNRM}, then depending on the result:"
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switch_branch "$1"
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new_branch "$1"
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fi
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}
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# Set the upstream for branch to upstream.
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function set_upstream
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{
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# Note the argument order is swapped
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local cmd="git branch --set-upstream-to='$2' '$1'"
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printf " %s Setting upstream for %s to %s..." "$MARKER" "$1" "$2"
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if [ $DRY_RUN -eq 0 ]; then
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msg=$( eval "$cmd" 2>&1 )
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validate_ret $? "$msg"
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else
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printf "\\n %s\\n" "${IWTH}$cmd${CNRM}"
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fi
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}
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|
|
|
###############
|
|
# Entry point #
|
|
###############
|
|
|
|
printf "%s Setting up the repository and remote %s\\n" "$MARKER" \
|
|
"${BYEL}origin${CNRM}"
|
|
# First, fetch the origin.
|
|
ORIGIN_PARENT=$(dirname "$ORIGIN_PATH")
|
|
make_directory "$ORIGIN_PARENT"
|
|
# This is just cd with an error check
|
|
goto_dir "$ORIGIN_PARENT"
|
|
|
|
# clone repository / origin remote
|
|
clone_repo "$GIT_ORIGIN_PULL" "$TOR_MASTER_NAME"
|
|
goto_dir "$ORIGIN_PATH"
|
|
set_remote_push "origin" "$GIT_ORIGIN_PUSH"
|
|
|
|
# upstream remote, if different to origin
|
|
if [ "$DEFAULT_UPSTREAM_REMOTE" != "origin" ]; then
|
|
printf "%s Setting up remote %s\\n" "$MARKER" \
|
|
"${BYEL}$DEFAULT_UPSTREAM_REMOTE${CNRM}"
|
|
add_remote "$DEFAULT_UPSTREAM_REMOTE" "$GIT_UPSTREAM_PULL"
|
|
set_remote_push "$DEFAULT_UPSTREAM_REMOTE" "$GIT_UPSTREAM_PUSH"
|
|
fetch_remote "$DEFAULT_UPSTREAM_REMOTE"
|
|
fi
|
|
|
|
# GitHub remote
|
|
printf "%s Setting up remote %s\\n" "$MARKER" "${BYEL}tor-github${CNRM}"
|
|
# Add remote
|
|
add_remote "tor-github" "$GITHUB_PULL"
|
|
set_remote_push "tor-github" "$GITHUB_PUSH"
|
|
# Add custom fetch for PRs
|
|
set_tor_github_pr_fetch_config
|
|
# Now fetch them all
|
|
fetch_remote "tor-github"
|
|
|
|
# Extra remote
|
|
if [ "$TOR_EXTRA_REMOTE_NAME" ]; then
|
|
printf "%s Setting up remote %s\\n" "$MARKER" \
|
|
"${BYEL}$TOR_EXTRA_REMOTE_NAME${CNRM}"
|
|
# Add remote
|
|
add_remote "$TOR_EXTRA_REMOTE_NAME" "$TOR_EXTRA_REMOTE_PULL"
|
|
set_remote_push "$TOR_EXTRA_REMOTE_NAME" "$TOR_EXTRA_REMOTE_PUSH"
|
|
# But leave it to the user to decide if they want to fetch it
|
|
#fetch_remote "$TOR_EXTRA_REMOTE_NAME"
|
|
fi
|
|
|
|
# Go over all configured worktree.
|
|
for ((i=0; i<COUNT; i++)); do
|
|
branch=${!WORKTREE[$i]:0:1}
|
|
repo_path=${!WORKTREE[$i]:1:1}
|
|
|
|
printf "%s Handling branch %s\\n" "$MARKER" "${BYEL}$branch${CNRM}"
|
|
# We cloned the repository, and master is the default branch
|
|
if [ "$branch" = "master" ]; then
|
|
if [ "$TOR_MASTER_NAME" != "master" ]; then
|
|
# Set up a master link in the worktree directory
|
|
make_symlink "$repo_path" "$GIT_PATH/$TOR_WKT_NAME/master"
|
|
fi
|
|
else
|
|
# git makes worktree directories if they don't exist
|
|
add_worktree "origin/$branch" "$repo_path"
|
|
fi
|
|
goto_dir "$repo_path"
|
|
switch_or_new_branch "$branch"
|
|
set_upstream "$branch" "origin/$branch"
|
|
done
|
|
|
|
echo
|
|
echo "Remember to copy the git hooks from tor/scripts/git/*.git-hook to"
|
|
echo "$ORIGIN_PATH/.git/hooks/*"
|