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Add pager_name function to pager.sh

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Ethan P 2020-01-17 17:06:00 -08:00
parent c80d107d1c
commit 0fa396fbcb
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1 changed files with 15 additions and 0 deletions
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15
lib/pager.sh
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@ -7,6 +7,7 @@
# -----------------------------------------------------------------------------
# Defaults.
_SCRIPT_PAGER_NAME=
SCRIPT_PAGER_CMD=("$PAGER")
SCRIPT_PAGER_ARGS=()
@ -29,6 +30,20 @@ fi
# -----------------------------------------------------------------------------
# Gets the pager name.
pager_name() {
if [[ -z "${SCRIPT_PAGER_CMD[0]}" ]]; then return; fi
if [[ -z "$_SCRIPT_PAGER_NAME" ]]; then
local output="$("${SCRIPT_PAGER_CMD[0]}" --version 2>&1)"
if head -n 1 <<< "$output" | grep '^less \d' &>/dev/null; then
_SCRIPT_PAGER_NAME="less"
fi
fi
echo "$_SCRIPT_PAGER_NAME"
}
# Executes a command or function, and pipes its output to the pager (if exists).
#
# Returns: The exit code of the command.