From 335b71e1a32629a461b224075a4d83a19dd376cb Mon Sep 17 00:00:00 2001
From: Steven Baltakatei Sandoval <baltakatei@gmail.com>
Date: Tue, 17 Jan 2023 06:43:54 +0000
Subject: [PATCH] feat(user/bkfeh):Process stdin and psargs separately

- Note: Filter out dotfiles via a grep of file list
---
 unitproc/bkt-read_psarg |  36 +++++++++++++
 unitproc/bkt-read_stdin |  36 +++++++++++++
 user/bkfeh              | 110 +++++++++++++++++++++++++++-------------
 3 files changed, 147 insertions(+), 35 deletions(-)
 create mode 100644 unitproc/bkt-read_psarg
 create mode 100644 unitproc/bkt-read_stdin

diff --git a/unitproc/bkt-read_psarg b/unitproc/bkt-read_psarg
new file mode 100644
index 0000000..0e583eb
--- /dev/null
+++ b/unitproc/bkt-read_psarg
@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+# Desc: Reads positional arguments
+
+yell() { echo "$0: $*" >&2; } # print script path and all args to stderr
+die() { yell "$*"; exit 111; } # same as yell() but non-zero exit status
+must() { "$@" || die "cannot $*"; } # runs args as command, reports args if command fails
+read_psarg() {
+    # Desc: Reads arguments; outputs as stdout lines
+    # Input: args
+    # Output: stdout (newline delimited)
+    # Example: read_psarg "$@"
+    # Depends: GNU bash (version 5.1.16)
+    # Version: 0.0.1
+    local input_psarg output;
+    
+    # Store arguments
+    if [[ $# -gt 0 ]]; then
+        input_psarg="$*";
+    fi;
+    
+    # Store as output array elements
+    ## Read in positional arguments
+    if [[ -n $input_psarg ]]; then
+        for arg in "$@"; do
+            output+=("$arg");
+        done;
+    fi;
+
+    # Print to stdout
+    printf "%s\n" "${output[@]}";
+}; # read positional argument to stdout lines
+main() {
+    read_psarg "$@";
+};
+
+main "$@";
diff --git a/unitproc/bkt-read_stdin b/unitproc/bkt-read_stdin
new file mode 100644
index 0000000..31469b3
--- /dev/null
+++ b/unitproc/bkt-read_stdin
@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+# Desc: Reads stdin
+
+yell() { echo "$0: $*" >&2; } # print script path and all args to stderr
+die() { yell "$*"; exit 111; } # same as yell() but non-zero exit status
+must() { "$@" || die "cannot $*"; } # runs args as command, reports args if command fails
+read_stdin() {
+    # Desc: Consumes stdin; outputs as stdout lines
+    # Input: stdin (consumes)
+    # Output: stdout (newline delimited)
+    # Example: printf "foo\nbar\n" | read_stdin
+    # Depends: GNU bash (version 5.1.16)
+    # Version: 0.0.1
+    local input_stdin output;
+
+    # Store stdin
+    if [[ -p /dev/stdin ]]; then
+        input_stdin="$(cat -)";
+    fi; 
+    
+    # Store as output array elements
+    ## Read in stdin
+    if [[ -n $input_stdin ]]; then
+        while read -r line; do
+            output+=("$line");
+        done < <(printf "%s\n" "$input_stdin");
+    fi;
+
+    # Print to stdout
+    printf "%s\n" "${output[@]}";
+}; # read stdin to stdout lines
+main() {
+    read_stdin "$@";
+};
+
+main "$@";
diff --git a/user/bkfeh b/user/bkfeh
index d2f5423..7dbf9fb 100755
--- a/user/bkfeh
+++ b/user/bkfeh
@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-# Version: 0.0.5
+# Version: 0.0.7
 # Ref/Attrib: [1] Tange, Ole. GNU Parallel with Bash Array. 2019-03-24. https://unix.stackexchange.com/a/508365/411854
 # Depends: GNU Parallel, GNU Bash v5.1.16, feh 3.6.3
 
@@ -155,33 +155,46 @@ check_depends() {
     if ! checkapp feh parallel; then displayMissing; die "FATAL:Missing apps."; fi;
     return 1;
 }; # check dependencies
-read_stdin_psarg() {
-    # Desc: Consumes stdin and reads arguments; outputs as stdout lines
+read_stdin() {
+    # Desc: Consumes stdin; outputs as stdout lines
     # Input: stdin (consumes)
-    # Input: args
     # Output: stdout (newline delimited)
-    # Example: read_stdin_psarg "$@"
+    # Example: printf "foo\nbar\n" | read_stdin
     # Depends: GNU bash (version 5.1.16)
-    # Version: 0.0.3
-    local input_stdin input_psarg output;
+    # Version: 0.0.1
+    local input_stdin output;
 
     # Store stdin
     if [[ -p /dev/stdin ]]; then
         input_stdin="$(cat -)";
-    fi;
+    fi; 
     
-    # Store arguments
-    if [[ $# -gt 0 ]]; then
-        input_psarg="$*";
-    fi;
-    
-    # Combine as output array elements
+    # Store as output array elements
     ## Read in stdin
     if [[ -n $input_stdin ]]; then
         while read -r line; do
             output+=("$line");
         done < <(printf "%s\n" "$input_stdin");
     fi;
+
+    # Print to stdout
+    printf "%s\n" "${output[@]}";
+}; # read stdin to stdout lines
+read_psarg() {
+    # Desc: Reads arguments; outputs as stdout lines
+    # Input: args
+    # Output: stdout (newline delimited)
+    # Example: read_psarg "$@"
+    # Depends: GNU bash (version 5.1.16)
+    # Version: 0.0.1
+    local input_psarg output;
+    
+    # Store arguments
+    if [[ $# -gt 0 ]]; then
+        input_psarg="$*";
+    fi;
+    
+    # Store as output array elements
     ## Read in positional arguments
     if [[ -n $input_psarg ]]; then
         for arg in "$@"; do
@@ -191,33 +204,26 @@ read_stdin_psarg() {
 
     # Print to stdout
     printf "%s\n" "${output[@]}";
-}; # read stdin and positional argument to stdout lines
-print_filelist() {
+}; # read positional argument to stdout lines
+find_flist() {
     # Desc: print file list to stdout via `find` using script parameters
     # Input: arg1: path to dir
     #        var: find_depth
     #        var: pattern_find_iregex
     #        var: find_size
     if [[ ! -d "$1" ]]; then return 1; fi;
-    must find "$1" -maxdepth "$find_depth" -type f -iregex "$pattern_find_iregex" -size +"$find_size";
+    must find "$1" -maxdepth "$fdepth" -type f -iregex "$firegex" -size +"$fsize";
 }; # print file list to stdout from dir with script parameters
 main() {
     # Depends: read_stdin_psarg() v0.0.1, check_depends()
     local re_dotfile;
-    declare -a main_dirs;
+    declare -a dirs_stdin dirs_psarg;
     declare -a paths_images;
     declare list_paths_images;
     check_depends;
 
-    # Find settings
-    find_depth=10; # default: 10
-    find_size="10k"; # default: minimum "10k"
-    #Find files ending in .jpg, .gif, etc.
-    pattern_find_iregex=".+\(jpg\|jpeg\|gif\|png\|webm\)$"; # update according to `find . -type f | grep -Eo "\.([[:alnum:]])+$" | sort -u`
-    export find_depth find_size pattern_find_iregex; # export for parallel
-
-    #Populate main_dirs array
-    ## Read stdin and positional arguments as lines
+    #Populate dirs_stdin and dirs_psarg arrays
+    ## Read stdin as lines
     re_dotfile="^\."; # first char is a dot
     while read -r line; do
         # Check if dir
@@ -231,15 +237,46 @@ main() {
             echo "ERROR:Is a dotdir:$line" 1>&2;
             continue
         fi;
-        main_dirs+=("$line");
-    done < <(read_stdin_psarg "$@");
-
-    # Catch empty main_dirs array
-    if [[ "${#main_dirs[@]}" -le 0 ]]; then die "FATAL:No valid directories provided."; fi;
+        dirs_stdin+=("$line");
+    done < <(read_stdin);
+    ## Read positional arguments as lines
+    re_dotfile="^\."; # first char is a dot
+    while read -r line; do
+        # Check if dir
+        if [[ ! -d "$line" ]]; then
+            echo "ERROR:Not a dir:$line" 1>&2;
+            continue;
+        fi;
+        dir_name="$(basename "$line")";
+        # Exclude dotdirs
+        if [[ "$dir_name" =~ $re_dotfile ]]; then
+            echo "ERROR:Is a dotdir:$line" 1>&2;
+            continue
+        fi;
+        dirs_psarg+=("$line");
+    done < <(read_psarg "$@");
+    
+    # Catch all arrays empty
+    if [[ "${#dirs_stdin[@]}" -le 0 ]] && [[ "${#dirs_psarg[@]}" -le 0 ]]; then
+        die "FATAL:No valid directories provided.";
+    fi;
     
     # Generate file list
-    paths_images+=("$( parallel print_filelist {} ::: "${main_dirs[@]}" )"); # See [1]
-
+    # Find settings
+    firegex=".+\(jpg\|jpeg\|gif\|png\|webm\)$"; # update according to `find . -type f | grep -Eo "\.([[:alnum:]])+$" | sort -u`
+    fsize="10k"; # default: minimum "10k"
+    export firegex fsize ; # export for parallel
+    ## Call find_filelist() in parallel for positional argument input
+    if [[ "${#dirs_psarg[@]}" -gt 0 ]]; then
+        fdepth=10; export fdepth; # 10 for dirs from positional arguments
+        paths_images+=("$( parallel find_flist {} "$fdepth" "$firegex" "$fsize" ::: "${dirs_psarg[@]}" )"); # See [1]
+    fi;
+    ## Call find_filelist() in parallel for stdin input
+    if [[ "${#dirs_stdin[@]}" -gt 0 ]]; then
+        fdepth=1; export fdepth; # 1 ofr dirs from stdin
+        paths_images+=("$( parallel find_flist {} "$fdepth" "$firegex" "$fsize" ::: "${dirs_stdin[@]}" )"); # See [1]
+    fi;
+    
     # Convert paths_images array into file list
     for i in "${!paths_images[@]}"; do
         list_paths_images="$(printf "%s\n%s" "${paths_images[$i]}" "$list_paths_images")";
@@ -252,6 +289,9 @@ main() {
     # Sort, remove duplicate paths
     list_paths_images="$(echo "$list_paths_images" | sort -u | tr -s '\n')";
 
+    # Remove paths with dotfiles
+    list_paths_images="$(echo "$list_paths_images" | grep -viE "/\." )";
+
     # Write
     list_paths_images_tmp="/dev/shm/$(date +%Y%m%dT%H%M%S.%N%z)"..feh_paths.txt;
     must echo -n "$list_paths_images" > "$list_paths_images_tmp";
@@ -265,7 +305,7 @@ main() {
     # Cleanup
     must rm "$list_paths_images_tmp";
 };
-export -f yell die must read_stdin_psarg print_filelist;
+export -f yell die must read_stdin read_psarg find_flist;
 #==END Define local functions==
 
 main "$@";
-- 
2.30.2