mirror of
https://github.com/ivuorinen/cheatsheet-tldr.git
synced 2026-01-26 11:33:59 +00:00
51 lines
1.1 KiB
Bash
Executable File
51 lines
1.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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# return sha256sum for file
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# $1 - filename (string)
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function get_sha256sum()
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{
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sha256sum "$1" | head -c 64
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}
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# Replaceable file
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#
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# $1 - filename (string)
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# $2 - filename (string)
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#
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# Returns 1 when replaceable, 0 when not replaceable.
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function replaceable()
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{
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FILE1="$1"
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FILE2="$2"
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[[ ! -r "$FILE1" ]] && {
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[[ $VERBOSE -eq 1 ]] && msg_err "File 1 ($FILE1) does not exist"
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return 0
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}
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[[ ! -r "$FILE2" ]] && {
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[[ $VERBOSE -eq 1 ]] && msg_err "File 2 ($FILE2) does not exist, replaceable"
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return 1
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}
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FILE1_HASH=$(get_sha256sum "$FILE1")
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FILE2_HASH=$(get_sha256sum "$FILE2")
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[[ $FILE1_HASH = "" ]] && {
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[[ $VERBOSE -eq 1 ]] && msg_err "Could not get hash for file 1 ($FILE1)"
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return 0
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}
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[[ $FILE2_HASH = "" ]] && {
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[[ $VERBOSE -eq 1 ]] && msg_err "Could not get hash for file 2 ($FILE2), replaceable"
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return 1
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}
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[[ "$FILE1_HASH" == "$FILE2_HASH" ]] && {
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[[ $VERBOSE -eq 1 ]] && msg_ok "Files match, not replaceable: $FILE1"
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return 0
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}
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[[ $VERBOSE -eq 1 ]] && msg_warn "Files do not match ($FILE1_HASH != $FILE2_HASH), replaceable"
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return 1
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}
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