Shell implementation of realpath

as macOS doesn't ship with a realpath program. Fixes issue from #281
erikw · Sep 23, 2022 · 887ed21 · 887ed21
1 parent 35ae2f4
commit 887ed21
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Showing 3 changed files with 52 additions and 2 deletions.
diff --git a/generate_rc.sh b/generate_rc.sh
@@ -1,7 +1,23 @@
 #!/usr/bin/env bash
 # Generate default rc file.
 
-export TMUX_POWERLINE_DIR_HOME="$(dirname $0)"
+# macOS doesn't ship with realpath.
+# Bash implementation from https://stackoverflow.com/a/18443300/265508
+realpath() (
+  OURPWD=$PWD
+  cd "$(dirname "$1")"
+  LINK=$(readlink "$(basename "$1")")
+  while [ "$LINK" ]; do
+    cd "$(dirname "$LINK")"
+    LINK=$(readlink "$(basename "$1")")
+  done
+  REALPATH="$PWD/$(basename "$1")"
+  cd "$OURPWD"
+  echo "$REALPATH"
+)
+
+export TMUX_POWERLINE_DIR_HOME="$(dirname "$(realpath "${BASH_SOURCE[0]}")")"
+
 source "${TMUX_POWERLINE_DIR_HOME}/config/paths.sh"
 source "${TMUX_POWERLINE_DIR_HOME}/config/defaults.sh"
 source "${TMUX_POWERLINE_DIR_HOME}/config/shell.sh"

diff --git a/mute_powerline.sh b/mute_powerline.sh
@@ -1,6 +1,22 @@
 #!/usr/bin/env bash
 
-export TMUX_POWERLINE_DIR_HOME="$(dirname $0)"
+# macOS doesn't ship with realpath.
+# Bash implementation from https://stackoverflow.com/a/18443300/265508
+realpath() (
+  OURPWD=$PWD
+  cd "$(dirname "$1")"
+  LINK=$(readlink "$(basename "$1")")
+  while [ "$LINK" ]; do
+    cd "$(dirname "$LINK")"
+    LINK=$(readlink "$(basename "$1")")
+  done
+  REALPATH="$PWD/$(basename "$1")"
+  cd "$OURPWD"
+  echo "$REALPATH"
+)
+
+export TMUX_POWERLINE_DIR_HOME="$(dirname "$(realpath "${BASH_SOURCE[0]}")")"
+
 source "${TMUX_POWERLINE_DIR_HOME}/config/paths.sh"
 source "${TMUX_POWERLINE_DIR_LIB}/muting.sh"
 source "${TMUX_POWERLINE_DIR_LIB}/arg_processing.sh"

diff --git a/powerline.sh b/powerline.sh
@@ -2,6 +2,24 @@
 
 export TMUX_POWERLINE_DIR_HOME="$(dirname "$(realpath "${BASH_SOURCE[0]}")")"
 
+# macOS doesn't ship with realpath.
+# Bash implementation from https://stackoverflow.com/a/18443300/265508
+realpath() (
+  OURPWD=$PWD
+  cd "$(dirname "$1")"
+  LINK=$(readlink "$(basename "$1")")
+  while [ "$LINK" ]; do
+    cd "$(dirname "$LINK")"
+    LINK=$(readlink "$(basename "$1")")
+  done
+  REALPATH="$PWD/$(basename "$1")"
+  cd "$OURPWD"
+  echo "$REALPATH"
+)
+
+export TMUX_POWERLINE_DIR_HOME="$(dirname "$(realpath "${BASH_SOURCE[0]}")")"
+
+
 source "${TMUX_POWERLINE_DIR_HOME}/config/helpers.sh"
 source "${TMUX_POWERLINE_DIR_HOME}/config/paths.sh"
 source "${TMUX_POWERLINE_DIR_HOME}/config/shell.sh"