29 lines
982 B
Bash
Executable File
29 lines
982 B
Bash
Executable File
#!/bin/bash
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#
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# Conditionally try to mount a gocryptfs filesystem. If either
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# * CIPHERDIR/gocryptfs.conf does not exist OR
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# * something is already mounted on MOUNTPOINT
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# print a message to stdout (not stderr!) but exit with 0.
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#
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# This is meant to be called from automated mount systems like pam_mount,
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# where you want to avoid error messages if the filesystem does not exist,
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# or duplicate mounts if the filesystem has already been mounted.
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#
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# Note that pam_mount ignores messages on stdout which is why printing
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# to stdout is ok.
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set -eu
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MYNAME=$(basename "$0")
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if [[ $# -lt 2 || $1 == -* ]]; then
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echo "Usage: $MYNAME CIPHERDIR MOUNTPOINT [-o COMMA-SEPARATED-OPTIONS]" >&2
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exit 1
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fi
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if [[ ! -f $1/gocryptfs.conf ]]; then
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echo "$MYNAME: \"$1\" does not look like a gocryptfs filesystem, ignoring mount request"
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exit 0
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fi
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if mountpoint "$2" > /dev/null; then
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echo "$MYNAME: something is already mounted on \"$2\", ignoring mount request"
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exit 0
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fi
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exec gocryptfs "$@"
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