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Use FD 9 instead of {FD}. Move PLATFORM definition.

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This commit is contained in:
Darren 'Tadgy' Austin 2023-10-02 13:50:19 +01:00
commit 3029da7929
1 changed files with 11 additions and 13 deletions
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24
.bashrc
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@ -172,14 +172,14 @@ __read_ssh_agents() {
# Read all the known ssh agent sockets into an array.
# Returns: 0 = Processed and read the agents file without issue.
# 1 = Error processing/reading the agents file.
local ERR FD I SOCK
local ERR I SOCK
[[ ! -e "$HOME/.ssh/agents" ]] && touch "$HOME/.ssh/agents"
# Lock the ~/.ssh/agents file.
if [[ "$PLATFORM" == "Linux" ]]; then
# Linux has 'flock', thankfully.
exec {FD}<"$HOME/.ssh/agents" && flock -E 10 -e -w 0.5 "$FD"
exec 9<"$HOME/.ssh/agents" && flock -E 10 -e -w 0.5 9
ERR=$?
if (( ERR == 10 )); then
printf "\\033[1;31m%s\\033[39m\\n" "Failed to obtain lock on ~/.ssh/agents." >&2
@ -196,7 +196,6 @@ __read_ssh_agents() {
for ((I = 0; I <= 5; I++)); do
if shlock -p "$$" -f "$HOME/.ssh/agents.lock"; then
exec 9<"$HOME/.ssh/agents"
FD="9"
# Make note of the mtime for use in write_ssh_agents.
SSH_AGENTS_MTIME="$(stat -f %Fm "$HOME/.ssh/agents")"
ERR=0
@ -216,13 +215,13 @@ __read_ssh_agents() {
fi
# Read the socket list (bash v2+ compliant)
while read -u "$FD" -r SOCK; do
while read -u 9 -r SOCK; do
[[ -n "$SOCK" ]] && SSH_AUTH_SOCKS+=("$SOCK")
done
ERR=$?
# Close the file descriptor (which on Linux releases the flock too).
: "$FD"<&-
exec 9<&-
# On Darwin, release the lock on the file.
rm -f "$HOME/.ssh/agents.lock"
@ -244,7 +243,7 @@ __write_ssh_agents() {
# Returns: 0 = Processed and wrote the agents file without issue.
# 1 = Error processing/writing the agents file.
# 2 = The SSH_AUTH_SOCKS array may be out of date as the agents file'a mtime has changed.
local FD ERR I J MTIME SOCKS
local ERR I J MTIME SOCKS
# Add the current agent socket to the sockets array.
SSH_AUTH_SOCKS=("$SSH_AUTH_SOCK" "${SSH_AUTH_SOCKS[@]}")
@ -267,7 +266,7 @@ __write_ssh_agents() {
(( ${MTIME/\.} > SSH_AGENTS_MTIME )) && return 2
# Lock the agents file.
exec {FD}>"$HOME/.ssh/agents" && flock -E 10 -e -w 0.5 "$FD"
exec 9<"$HOME/.ssh/agents" && flock -E 10 -e -w 0.5 9
ERR=$?
if (( ERR == 10 )); then
printf "\\033[1;31m%s\\033[39m\\n" "Failed to obtain lock on ~/.ssh/agents." >&2
@ -284,8 +283,7 @@ __write_ssh_agents() {
# Do locking the sucky way on OSX.
for ((I = 0; I <= 5; I++)); do
if shlock -p "$$" -f "$HOME/.ssh/agents.lock"; then
exec 9>"$HOME/.ssh/agents"
FD="9"
exec 9<"$HOME/.ssh/agents"
ERR=0
break
else
@ -307,7 +305,7 @@ __write_ssh_agents() {
[[ -n "${SOCKS[*]}" ]] && { printf "%s\\n" "${SOCKS[@]}" >"$HOME/.ssh/agents" 2>/dev/null; ERR=$?; }
# Release locks.
: "$FD"<&-
exec 9<&-
rm -f "$HOME/.ssh/agents.lock"
# Error out if the data couldn't be written.
@ -368,6 +366,9 @@ imagebin() {
curl -F file="@$1" https://imagebin.ca/upload.php | grep '^url:' | cut -d: -f2-
}
# Determine the platform being logged into.
PLATFORM="$(uname -s)"
# Make bash a little more pleasent - these are valid for all versions.
shopt -s cdspell checkhash checkwinsize cmdhist histappend no_empty_cmd_completion
@ -451,9 +452,6 @@ hash ssh ssh-add >/dev/null 2>&1 && ssh() {
command "${_EXEC:-${FUNCNAME[0]}}" "$@"
}
# Determine the platform being logged into.
PLATFORM="$(uname -s)"
# Platform specific set up.
if [[ "$PLATFORM" = "Linux" ]]; then
# Linux specific functions.