Remove invalid linked alternates (#65)

This commit is contained in:
Tim Byrne 2019-04-10 08:43:11 -05:00
parent a2cc970dd6
commit d245f633bf
No known key found for this signature in database
GPG Key ID: 14DB4FC2465A4B12
1 changed files with 33 additions and 0 deletions

33
yadm
View File

@ -183,6 +183,16 @@ function alt() {
tracked_files+=("$tracked_file")
done
# generate a list of possible alt files
possible_alts=()
local IFS=$'\n'
for possible_alt in "${tracked_files[@]}" "${ENCRYPT_INCLUDE_FILES[@]}"; do
if [[ $possible_alt =~ .\#\#. ]]; then
possible_alts+=("$YADM_WORK/${possible_alt%##*}")
fi
done
alt_linked=()
# loop over all "tracked" files
# for every file which matches the above regex, create a symlink
for match in $match1 $match2; do
@ -204,6 +214,7 @@ function alt() {
cp -f "$alt_path" "$new_link"
else
ln -nfs "$alt_path" "$new_link"
alt_linked+=("$alt_path")
fi
last_linked="$alt_path"
fi
@ -212,6 +223,24 @@ function alt() {
done
done
# review alternate candidates for stale links
# if a possible alt IS linked, but it's target is not part of alt_linked,
# remove it.
if readlink_available; then
for stale_candidate in "${possible_alts[@]}"; do
if [ -L "$stale_candidate" ]; then
link_target=$(readlink "$stale_candidate" 2>/dev/null)
if [ -n "$link_target" ]; then
removal=yes
for review_link in "${alt_linked[@]}"; do
[ "$link_target" = "$review_link" ] && removal=no
done
[ "$removal" = "yes" ] && rm -f "$stale_candidate"
fi
fi
done
fi
# loop over all "tracked" files
# for every file which is a *##yadm.j2 create a real file
local match="^(.+)##yadm\\.j2$"
@ -1064,6 +1093,10 @@ function envtpl_available() {
command -v "$ENVTPL_PROGRAM" >/dev/null 2>&1 && return
return 1
}
function readlink_available() {
command -v "readlink" >/dev/null 2>&1 && return
return 1
}
# ****** Directory tranlations ******