[PATCH v2 1/2] pass find: --find: Add flag

[Alejandro Colomar]

This flag modifies the command to use find(1) instead of tree(1).

A few tweaks are performed to the result of find:

(1)  Add a trailing slash to directories.  This is a useful way to
     distinguish files from dirs at first glance.  In the tree(1)
     version, it colors differently (as tree(1) does by default), so it
     seems consistent to distinguish them.

(2)  Remove the location of the password-store prefix from the path.

(3)  Remove the .gpg suffix from files (as is historic behavior of
     pass(1)).

As this is intended for scripting (machine readable output), the search
terms are not printed if this flag is used.

Examples of use:

        $ pass find --find bugzilla
        www/foss/kernel/bugzilla/
        www/foss/mozilla/bugzilla/
        www/foss/gentoo/bugzilla/
        www/foss/gnu/gcc/bugzilla/

        $ pass find --find kernel
        www/foss/kernel/

Those tweaks to the output of find(1) make the output directly usable in
a subsequent invocation of pass(1):

        $ pass find --find kernel \
          | xargs pass ls;
        www/foss/kernel
        ├── bugzilla
        │   ├── alx.manpages
        │   │   ├── id
        │   │   └── pass
        │   └── url
        └── smtp
            └── pass

Cc: Tobias Girstmair <t-lists at girst.at>
Cc: Fabian Pflug <fabian.pflug at gummu.de>
Signed-off-by: Alejandro Colomar <alx at kernel.org>
---
 man/pass.1            | 17 ++++++++++++++++-
 src/password-store.sh | 20 ++++++++++++++++++--
 2 files changed, 34 insertions(+), 3 deletions(-)

diff --git a/man/pass.1 b/man/pass.1
index a555dcb..0f2231e 100644
--- a/man/pass.1
+++ b/man/pass.1
@@ -89,10 +89,25 @@ .SH COMMANDS
 .BR grep (1)
 as-is. (Note: the \fIGREP_OPTIONS\fP environment variable functions as well.)
 .TP
-\fBfind\fP \fIpass-names\fP...
+\fBfind\fP [ \fI\-\-find\fP ] \fIpass-names\fP...
 List names of passwords inside the tree that match \fIpass-names\fP by using the
 .BR tree (1)
 program. This command is alternatively named \fBsearch\fP.
+.IP
+If the
+.I \-\-find
+flag is used,
+.BR find (1)
+is used instead;
+this is useful to be able to reuse the output as an input to
+.IR pass\~ls .
+Here's an example:
+.IP
+.in +4n
+.EX
+.RB $\~ "pass find \-\-find | xargs pass ls" ;
+.EE
+.in
 .TP
 \fBshow\fP [ \fI--clip\fP[=\fIline-number\fP], \fI-c\fP[\fIline-number\fP] ] [ \fI--qrcode\fP[=\fIline-number\fP], \fI-q\fP[\fIline-number\fP] ] \fIpass-name\fP
 Decrypt and print a password named \fIpass-name\fP. If \fI--clip\fP or \fI-c\fP
diff --git a/src/password-store.sh b/src/password-store.sh
index 22e818f..20d9377 100755
--- a/src/password-store.sh
+++ b/src/password-store.sh
@@ -411,10 +411,26 @@ cmd_show() {
 }
 
 cmd_find() {
+	local opts find=0
+	opts="$($GETOPT -o "" -l find -n "$PROGRAM" -- "$@")"
+	local err=$?
+	eval set -- "$opts"
+	while true; do case $1 in
+		--find) find=1; shift ;;
+		--) shift; break ;;
+	esac done
+
 	[[ $# -eq 0 ]] && die "Usage: $PROGRAM $COMMAND pass-names..."
-	IFS="," eval 'echo "Search Terms: $*"'
 	local terms="*$(printf '%s*|*' "$@")"
-	tree -N -C -l --noreport -P "${terms%|*}" --prune --matchdirs --ignore-case "$PREFIX" 3>&- | tail -n +2 | sed -E 's/\.gpg(\x1B\[[0-9]+m)?( ->|$)/\1\2/g'
+
+	if [[ $find -eq 1 ]]; then
+		local n="$(echo "$PREFIX" | wc -c)"
+
+		find -L "$PREFIX" -iname "${terms%|*}" | sed 's,$,/,' | sed "s/^.\{$n\}//" | sed 's,\.gpg/$,,'
+	else
+		IFS="," eval 'echo "Search Terms: $*"'
+		tree -N -C -l --noreport -P "${terms%|*}" --prune --matchdirs --ignore-case "$PREFIX" 3>&- | tail -n +2 | sed -E 's/\.gpg(\x1B\[[0-9]+m)?( ->|$)/\1\2/g'
+	fi
 }
 
 cmd_grep() {
-- 
2.50.1