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From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Konstantin Ryabitsev <konstantin@linuxfoundation.org>
Cc: tools@linux.kernel.org, Geert Uytterhoeven <geert@linux-m68k.org>
Subject: [PATCH] Fix invocation of b4.sh through a symlink
Date: Tue, 24 Mar 2020 10:00:57 +0100	[thread overview]
Message-ID: <20200324090057.25409-1-geert@linux-m68k.org> (raw)

If b4 in your $PATH is a symlink pointing to b4.sh, $SCRIPT_TOP points
to the directory containing the symlink, and b4/command.py cannot be
found.

Fix this by following any symlinks, if present.

After this it works for being invoked through either an alias, symlink,
or plain path.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
Stack Overflow tells me "readlink -f" is not supported on OS X and some
BSDs. Do we care?
---
 b4.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/b4.sh b/b4.sh
index cafeee186115832d..e5459192d978e41b 100755
--- a/b4.sh
+++ b/b4.sh
@@ -3,6 +3,6 @@
 # Run b4 from a git checkout.
 #
 
-SCRIPT_TOP="${SCRIPT_TOP:-$(cd "${BASH_SOURCE%/*}" && pwd)}"
+SCRIPT_TOP="${SCRIPT_TOP:-$(dirname $(readlink -f $0))}"
 
 exec env PYTHONPATH="${SCRIPT_TOP}" python3 "${SCRIPT_TOP}/b4/command.py" "${@}"
-- 
2.17.1


             reply	other threads:[~2020-03-24  9:01 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-24  9:00 Geert Uytterhoeven [this message]
2020-03-24 14:33 ` [PATCH] Fix invocation of b4.sh through a symlink Konstantin Ryabitsev
2020-03-24 15:12   ` Geert Uytterhoeven

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