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-rwxr-xr-xDocumentation/doc-diff39
1 files changed, 30 insertions, 9 deletions
diff --git a/Documentation/doc-diff b/Documentation/doc-diff
index f483fe427c..dfd9418778 100755
--- a/Documentation/doc-diff
+++ b/Documentation/doc-diff
@@ -1,21 +1,34 @@
#!/bin/sh
+#
+# Build two documentation trees and diff the resulting formatted output.
+# Compared to a source diff, this can reveal mistakes in the formatting.
+# For example:
+#
+# ./doc-diff origin/master HEAD
+#
+# would show the differences introduced by a branch based on master.
OPTIONS_SPEC="\
doc-diff [options] <from> <to> [-- <diff-options>]
+doc-diff (-c|--clean)
--
j=n parallel argument to pass to make
f force rebuild; do not rely on cached results
+c,clean cleanup temporary working files
"
SUBDIRECTORY_OK=1
. "$(git --exec-path)/git-sh-setup"
parallel=
force=
+clean=
while test $# -gt 0
do
case "$1" in
-j)
parallel=$2; shift ;;
+ -c|--clean)
+ clean=t ;;
-f)
force=t ;;
--)
@@ -26,6 +39,17 @@ do
shift
done
+cd_to_toplevel
+tmp=Documentation/tmp-doc-diff
+
+if test -n "$clean"
+then
+ test $# -eq 0 || usage
+ git worktree remove --force "$tmp/worktree" 2>/dev/null
+ rm -rf "$tmp"
+ exit 0
+fi
+
if test -z "$parallel"
then
parallel=$(getconf _NPROCESSORS_ONLN 2>/dev/null)
@@ -42,9 +66,6 @@ to=$1; shift
from_oid=$(git rev-parse --verify "$from") || exit 1
to_oid=$(git rev-parse --verify "$to") || exit 1
-cd_to_toplevel
-tmp=Documentation/tmp-doc-diff
-
if test -n "$force"
then
rm -rf "$tmp"
@@ -54,7 +75,7 @@ fi
# results that don't differ between the two trees.
if ! test -d "$tmp/worktree"
then
- git worktree add --detach "$tmp/worktree" "$from" &&
+ git worktree add -f --detach "$tmp/worktree" "$from" &&
dots=$(echo "$tmp/worktree" | sed 's#[^/]*#..#g') &&
ln -s "$dots/config.mak" "$tmp/worktree/config.mak"
fi
@@ -69,12 +90,12 @@ generate_render_makefile () {
printf '%s: %s\n' "$dst" "$src"
printf '\t@echo >&2 " RENDER $(notdir $@)" && \\\n'
printf '\tmkdir -p $(dir $@) && \\\n'
- printf '\tMANWIDTH=80 man -l $< >$@+ && \\\n'
+ printf '\tMANWIDTH=80 man $< >$@+ && \\\n'
printf '\tmv $@+ $@\n'
done
}
-# render_tree <dirname> <committish>
+# render_tree <committish_oid>
render_tree () {
# Skip install-man entirely if we already have an installed directory.
# We can't rely on make here, since "install-man" unconditionally
@@ -84,7 +105,7 @@ render_tree () {
# through.
if ! test -d "$tmp/installed/$1"
then
- git -C "$tmp/worktree" checkout "$2" &&
+ git -C "$tmp/worktree" checkout --detach "$1" &&
make -j$parallel -C "$tmp/worktree" \
GIT_VERSION=omitted \
SOURCE_DATE_EPOCH=0 \
@@ -104,6 +125,6 @@ render_tree () {
fi
}
-render_tree $from_oid "$from" &&
-render_tree $to_oid "$to" &&
+render_tree $from_oid &&
+render_tree $to_oid &&
git -C $tmp/rendered diff --no-index "$@" $from_oid $to_oid