blob: d63db1b736708ea55f1ad03888eb49fbe490cb90 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
#!/usr/bin/env sh
# Description: Preview plugin for nnn's built-in preview pane
# Auto-detected from plugins dir
# Usage: .npreview <filepath> <width> <height>
# All dependencies optional — graceful fallback to head/file/strings
set -euf
F="$1"
W="${2:-80}"
H="${3:-25}"
ext="${F##*.}"
ext="$(printf "%s" "$ext" | tr '[:upper:]' '[:lower:]')"
has() { type "$1" >/dev/null 2>&1; }
hd() { head -n "$H"; }
# --- Handlers ---
show_dir() {
has tree && { tree -L 1 -n --dirsfirst --noreport "$F" | hd; return; }
find "$F" -maxdepth 1 -print 2>/dev/null | hd
}
show_text() {
has bat && { bat --style=plain --color=never --paging=never --line-range=":${H}" -- "$F" 2>/dev/null; return; }
has batcat && { batcat --style=plain --color=never --paging=never --line-range=":${H}" -- "$F" 2>/dev/null; return; }
head -n "$H" "$F"
}
show_pdf() {
has pdftotext && { pdftotext -l 1 -nopgbrk -q -- "$F" - 2>/dev/null | hd; return; }
has mutool && { mutool draw -F txt -i -- "$F" 1 2>/dev/null | hd; return; }
show_meta
}
show_archive() {
case "$ext" in
rar) has unrar && { unrar lt -p- -- "$F" 2>/dev/null | hd; return; } ;;
7z) has 7z && { 7z l -p -- "$F" 2>/dev/null | hd; return; } ;;
esac
has atool && { atool --list -- "$F" 2>/dev/null | hd; return; }
has bsdtar && { bsdtar --list --file "$F" 2>/dev/null | hd; return; }
has tar && { tar tf "$F" 2>/dev/null | hd; return; }
has unzip && [ "$ext" = "zip" ] && { unzip -l "$F" 2>/dev/null | hd; return; }
printf "[archive %s]\n" "$(du -h "$F" 2>/dev/null | cut -f1)"
}
show_image() {
has img2txt && { img2txt --gamma=0.6 --width="$W" -- "$F" 2>/dev/null | hd; return; }
show_meta
}
show_meta() {
has exiftool && { exiftool "$F" 2>/dev/null | hd; return; }
has mediainfo && { mediainfo "$F" 2>/dev/null | hd; return; }
has file && { file -b "$F"; return; }
printf "[no metadata tool]\n"
}
show_json() {
has jq && { head -c 65536 "$F" | jq --monochrome-output . 2>/dev/null | hd; return; }
has python3 && { head -c 65536 "$F" | python3 -m json.tool 2>/dev/null | hd; return; }
show_text
}
show_md() {
has glow && { glow -s notty "$F" 2>/dev/null | hd; return; }
has lowdown && { lowdown -Tterm "$F" 2>/dev/null | hd; return; }
show_text
}
show_html() {
has w3m && { w3m -dump "$F" 2>/dev/null | hd; return; }
has lynx && { lynx -dump -- "$F" 2>/dev/null | hd; return; }
show_text
}
show_elf() {
has readelf && { readelf -h "$F" 2>/dev/null | hd; return; }
has objdump && { objdump -f "$F" 2>/dev/null | hd; return; }
has file && file -b "$F"
}
show_doc() {
has odt2txt && { odt2txt "$F" 2>/dev/null | hd; return; }
show_meta
}
show_bin() {
has strings && { printf "[binary]\n"; strings "$F" 2>/dev/null | hd; return; }
printf "[binary %s]\n" "$(du -h "$F" 2>/dev/null | cut -f1)"
}
# --- Directory ---
[ -d "$F" ] && { show_dir; exit 0; }
# --- Dispatch by extension ---
case "$ext" in
a|ace|alz|arc|arj|bz|bz2|cab|cpio|deb|gz|jar|lha|lz|lzh|lzma|lzo|\
rpm|rz|t7z|tar|tbz|tbz2|tgz|tlz|txz|tz|tzo|war|xpi|xz|z|zip|rar|7z|zst)
show_archive; exit 0 ;;
pdf) show_pdf; exit 0 ;;
md|mkd|markdown) show_md; exit 0 ;;
htm|html|xhtml) show_html; exit 0 ;;
json) show_json; exit 0 ;;
odt|ods|odp|sxw) show_doc; exit 0 ;;
torrent) has transmission-show && { transmission-show -- "$F" 2>/dev/null | hd; exit 0; } ;;
sqlite|sqlite3|db) has sqlite3 && { printf ".tables\n" | sqlite3 "$F" 2>/dev/null | hd; exit 0; } ;;
o|so|dylib) show_elf; exit 0 ;;
c|cc|cpp|h|hpp|rs|go|py|rb|js|ts|java|sh|bash|zsh|pl|lua|vim|el|\
css|scss|yaml|yml|toml|ini|conf|xml|sql|diff|patch|awk|sed|make)
show_text; exit 0 ;;
esac
# --- Dispatch by mime type ---
has file || { show_text; exit 0; }
mime="$(file -bL --mime-type -- "$F" 2>/dev/null)"
case "$mime" in
text/*|*/xml) show_text ;;
application/json) show_json ;;
application/pdf) show_pdf ;;
application/zip|application/x-tar|application/x-rar*|\
application/x-7z*|application/x-bzip*|application/x-xz|\
application/x-compress*|application/gzip|application/zstd)
show_archive ;;
image/*) show_image ;;
audio/*|video/*) show_meta ;;
application/x-executable|application/x-sharedlib|application/x-pie-executable|\
application/x-object) show_elf ;;
application/vnd.openxmlformats*|application/vnd.oasis.opendocument*) show_doc ;;
*) show_bin ;;
esac
|
