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#!/bin/bash
. libremessages
# "Primitive" git functions ##########################################
# Usage: in_git
# Returns 0 if somewhere in a git repository, nonzero if not.
in_git() {
gitroot &>/dev/null
}
# Usage: gitroot
# Prints the root directory of the git checkout
gitroot() {
git rev-parse --show-toplevel
}
# Usage: gitbranch
# Prints the current git branch
gitbranch() {
git rev-parse --abbrev-ref HEAD
}
# Usage: have_file $file
# Returns 0 if `$(gitroot)/$file` exists.
have_file() {
local file=$1
if in_git && [[ -f "$(gitroot)/$file" ]]; then
return 0;
fi
return 1
}
# Deal with being in a PBS package repository ########################
in_pbs-package() {
have_file .pbs-package
}
ensure_in_pbs-package() {
if ! in_pbs-package; then
error "Not in a PBS package directory"
exit 1
fi
}
pbs-package-root() {
ensure_in_pbs-package
gitroot
}
cdto_pbs-package-root() {
ensure_in_pbs-package
cd "$(gitroot)"
}
# Deal with being in a PBS repository ################################
in_pbs() (
if in_pbs-package; then
cd "$(pbs-package-root)/.."
fi
have_file .pbs-root
)
ensure_in_pbs() {
if ! in_pbs; then
error "Not in a PBS directory"
exit 1
fi
}
pbs-root() {
ensure_in_pbs
(
if in_pbs-package; then
cd "$(pbs-package-root)/.."
fi
gitroot
)
}
cdto_pbs-root() {
ensure_in_pbs
if in_pbs-package; then
cd "$(pbs-package-root)/.."
fi
cd "$(gitroot)"
}
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