From: Victor Lowther <victor.lowther@gmail.com>
Date: Sat, 7 Mar 2009 03:41:31 +0000 (-0600)
Subject: Fix broken -c handling and give instmods a little optimization.
X-Git-Tag: 0.1~314
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=3198f1711ffd44f19477739325027b458e661107;p=thirdparty%2Fdracut.git

Fix broken -c handling and give instmods a little optimization.
---

diff --git a/dracut b/dracut
index ff22a670e..d8da6d69a 100755
--- a/dracut
+++ b/dracut
@@ -15,7 +15,7 @@ while (($# > 0)); do
 	-h|--help) echo "Usage: $0 [-f] <initramfs> <kernel-version>"
 	    exit 1 ;;
 	-v|--verbose) set -x;;
-	-c|--conf) conffile="$2"
+	-c|--conf) conffile="$2" ;;
 	-l|--local) allowlocal="yes" ;;
 	--allow-missing) : ;;
 	*) break ;;
diff --git a/dracut-functions b/dracut-functions
index cb66790c3..be06ae0fe 100755
--- a/dracut-functions
+++ b/dracut-functions
@@ -25,11 +25,13 @@
 IF_RTLD=""
 IF_dynamic=""
 
+# Generic substring function.  If $2 is in $1, return 0.
 strstr() { [[ ! ${1#*$2*} = $1 ]]; }
 
 # $1 = file to copy to ramdisk
 # $2 (optional) Name for the file on the ramdisk
 # Location of the image dir is assumed to be $initdir
+# We never overwrite the target if it exists.
 inst_simple() {
     local src target
     [[ -f $1 ]] || return 1
@@ -40,6 +42,9 @@ inst_simple() {
     cp -fL "$src" "$target"
 }
 
+# Same as above, but specialzed to handle dynamic libraries.
+# It handles making symlinks according to how the original library
+# is referenced.
 inst_library() {
     local src=$1 dest=${2:-$1}
     [[ -f $initdir$dest ]] && return 0
@@ -53,7 +58,9 @@ inst_library() {
 	inst_simple "$src" "$dest"
     fi
 }
-	
+
+# find a binary.  If we were not passed the full path directly,
+# search in the usual places to find the binary.
 find_binary() {
     local binpath="/bin /sbin /usr/bin /usr/sbin" p
     [[ -x $1 ]] && { echo $1; return 0; }
@@ -63,13 +70,12 @@ find_binary() {
     return 1
 }
 
-# Same as above.
-# If the file is a binary executable, install all its
-# shared library dependencies, if any.
+# Same as above, but specialized to install binary executables.
+# Install binary executable, and all shared library dependencies, if any.
 inst_binary() {
     local bin target
     bin=$(find_binary "$1") || return 1
-    shift
+    target=${2:-$bin}
     local LDSO NAME IO FILE ADDR I1 n f TLIBDIR
     [[ -f $initdir$target ]] && return 0
     # I love bash!
@@ -100,7 +106,7 @@ inst_binary() {
 	}
         inst_library "$FILE" 
     done < <(ldd $bin 2>/dev/null)
-    inst_simple "$bin" "$@"
+    inst_simple "$bin" "$target"
 }
 
 # same as above, except for shell scripts.
@@ -123,6 +129,7 @@ inst_symlink() {
     inst "$realsrc" && ln -s "$realsrc" "$target"
 }
 
+# find a rule in the usual places.
 find_rule() {
     for r in . /lib/udev/rules.d /etc/udev/rules.d $dsrc/rules.d; do
 	[[ -f $r/$1 ]] && { echo "$r/$1"; return 0; }
@@ -196,6 +203,7 @@ instmods() {
 		;;
 	    --*) mpargs+=" $mod";;
 	    *)  mod=${mod##*/}
+	        [[ -f $initdir/$1 ]] && { shift; continue; }
                 modprobe $mpargs --ignore-install --set-version $kernel \
 		    --show-depends $mod 2>/dev/null | \
 		    while read cmd modpath options; do