mirror of
https://github.com/notwa/rc
synced 2024-11-05 12:59:04 -08:00
62 lines
1.9 KiB
Bash
Executable file
62 lines
1.9 KiB
Bash
Executable file
#!/usr/bin/env sh
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# YES_ZSH YES_BASH YES_DASH YES_ASH
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# TODO: check if this is compatible with busybox.
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decently() ( ### @-
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### given a list of directories, update the last-modified timestamp
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### of each argument to that of the most recent file that it contains.
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###
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### note that *files* are found recursively, but only the
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### *outermost directory* (the one specified by argument)
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### has its timestamp updated. symlinks are followed.
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### `.git` subdirectories are skipped over.
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### the timestamps of subdirectories are ignored.
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[ -n "$1" ] || { printf '%s: missing directory argument\n' decently >&2; return 1; }
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local arg= dir= latest= prev= ts= fails= succs=0
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finder() {
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find "$dir" -type f "$@" \
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'!' \
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'(' -path '*/.git/*' \
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-or -path '*/CVS/*' \
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-or -path '*/CVSROOT/*' \
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-or -path '*/__pycache__/*' \
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-or -path '*/[Dd]esktop.ini' \
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-or -path '*/Thumbs.db' \
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-or -path '*/.DS_Store' \
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')' \
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-exec ls -t1 '{}' + \
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2>/dev/null \
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| while read -r f; do
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printf '%s\n' "$f"
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break
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done
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}
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for arg; do
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dir="$(readlink -f -- "$arg")" || continue
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[ -d "$dir" ] || { printf '%s: not a directory: %s\n' decently "$dir" >&2; continue; }
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prev=
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latest="$(finder)" || continue
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while [ -n "$latest" ]; do
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prev="$latest"
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latest="$(finder -newer "$latest")" || break
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done
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[ -e "$prev" ] || { printf '%s: no valid files found: %s\n' decently "$dir" >&2; continue; }
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ts="$(date -u '+%s' -r "$prev")"
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dir="${dir%/}/" # ensure dir has a trailing slash
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printf '%s\t%s\n' "$ts" "${arg%/}/${prev#$dir}"
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touch -c -r "$prev" "$dir" || continue
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: $(( succs+=1 ))
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done
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fails=$(( $# - succs ))
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[ $fails -le 255 ] || fails=255
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return $fails
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)
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[ -n "${preload+-}" ] || decently "$@"
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