108 lines
2.8 KiB
Diff
108 lines
2.8 KiB
Diff
Index: os-prober-1.58/common.sh
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===================================================================
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--- os-prober-1.58.orig/common.sh
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+++ os-prober-1.58/common.sh
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@@ -62,10 +62,14 @@ cache_progname() {
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esac
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}
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-log() {
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- cache_progname
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- logger -t "$progname" "$@"
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-}
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+# fd_logger: bind value now, possibly after assigning default.
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+eval '
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+ log() {
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+ cache_progname
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+ echo "$progname: $@" 1>&'${fd_logger:=9}'
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+ }
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+'
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+export fd_logger # so subshells inherit current value by default
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error() {
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log "error: $@"
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@@ -81,10 +85,14 @@ debug() {
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fi
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}
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-result () {
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- log "result:" "$@"
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- echo "$@"
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-}
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+# fd_result: bind value now, possibly after assigning default.
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+eval '
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+ result() {
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+ log "result:" "$@"
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+ echo "$@" 1>&'${fd_result:=1}'
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+ }
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+'
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+export fd_result # so subshells inherit current value by default
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# shim to make it easier to use os-prober outside d-i
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if ! type mapdevfs >/dev/null 2>&1; then
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Index: os-prober-1.58/linux-boot-prober
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===================================================================
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--- os-prober-1.58.orig/linux-boot-prober
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+++ os-prober-1.58/linux-boot-prober
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@@ -1,4 +1,12 @@
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#!/bin/sh
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+
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+# dash shell does not have "{varname}>&1" feature that bash shell has
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+# for auto-assignment of new filedescriptors.
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+# It is cumbersome to write the 'eval' to use our own variables in redirections.
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+# Therefore use fixed numbers.
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+export fd_result=3 # file descriptor for external results
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+export fd_logger=9 # file descriptor for input to logger
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+
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. /usr/share/os-prober/common.sh
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set -e
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@@ -19,6 +27,7 @@ bootuuid=
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grep "^/dev/" /proc/mounts | parse_proc_mounts >"$OS_PROBER_TMP/mounted-map" || true
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+( (
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if [ -z "$1" ]; then
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ERR=y
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elif [ "$1" = btrfs -a -z "$2" ]; then
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@@ -186,3 +195,5 @@ else
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fi
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fi
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fi
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+) 9>&1 | logger 1>&- # fd_logger
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+) 3>&1 # fd_result
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Index: os-prober-1.58/os-prober
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===================================================================
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--- os-prober-1.58.orig/os-prober
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+++ os-prober-1.58/os-prober
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@@ -1,7 +1,14 @@
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#!/bin/sh
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set -e
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-. /usr/share/os-prober/common.sh
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+# dash shell does not have "{varname}>&1" feature that bash shell has
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+# for auto-assignment of new filedescriptors.
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+# It is cumbersome to write the 'eval' to use our own variables in redirections.
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+# Therefore use fixed numbers.
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+export fd_result=3 # file descriptor for external results
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+export fd_logger=9 # file descriptor for input to logger
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+
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+ . /usr/share/os-prober/common.sh
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newns "$@"
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require_tmpdir
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@@ -129,6 +136,7 @@ fi
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: >"$OS_PROBER_TMP/btrfs-vols"
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+( (
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for partition in $(partitions); do
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if ! mapped="$(mapdevfs "$partition")"; then
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log "Device '$partition' does not exist; skipping"
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@@ -193,3 +201,5 @@ for partition in $(partitions); do
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fi
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fi
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done
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+) 9>&1 | logger 1>&- # fd_logger
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+) 3>&1 # fd_result
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