54 lines
1.5 KiB
Bash
Executable File
54 lines
1.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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# ollie:parallel read
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# description: Read a file from the local filesystem with optional offset and line limit
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# Args: <file_path> [offset] [limit]
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file_path="$1"
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offset="${2:-1}"
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limit="${3:-2000}"
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max_line_len=2000
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max_size=$((8 * 1024 * 1024))
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[ -z "$file_path" ] && echo "usage: file_read <file_path> [offset] [limit]" && exit 1
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[[ "$file_path" != /* ]] && echo "error: path must be absolute, got: $file_path" && exit 1
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[ ! -f "$file_path" ] && [ -e "$file_path" ] && echo "error: not a regular file: $file_path" && exit 1
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if [ -z "$OLLIE_SESSION_ID" ]; then
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echo "error: OLLIE_SESSION_ID is not set"
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exit 1
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fi
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mkdir -p "/tmp/ollie/$OLLIE_SESSION_ID"
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marker="/tmp/ollie/$OLLIE_SESSION_ID/$(printf '%s' "$file_path" | sha256sum | cut -c1-64)"
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if [ ! -e "$file_path" ]; then
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echo "(new file)"
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: > "$marker"
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exit 0
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fi
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size=$(wc -c < "$file_path")
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[ "$size" -gt "$max_size" ] && echo "error: file too large ($size bytes, max $max_size)" && exit 1
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if ! head -c 8192 "$file_path" | LC_ALL=C tr -d '\0' | cmp -s - <(head -c 8192 "$file_path"); then
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echo "(binary file)"
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exit 0
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fi
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content=$(awk -v off="$offset" -v lim="$limit" -v maxlen="$max_line_len" '
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NR >= off && NR < off+lim {
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if (length($0) > maxlen) print substr($0, 1, maxlen) "..."
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else print
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}
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NR >= off+lim { exit }
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' "$file_path")
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if [ -z "$content" ]; then
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echo "(empty file)"
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else
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printf '%s\n' "$content"
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fi
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# save content to marker (used by file_edit/file_write as staging area)
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cp "$file_path" "$marker"
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