Commit 2ad24a4e2d6aff9ce6a9f7b3d510b5ccac48a909
2018-04-17T20:05:35
tests: add information about the crlf data generator The CRLF data generator is somewhat obscure; add information about how to use it and what it does.
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diff --git a/tests/generate_crlf.sh b/tests/generate_crlf.sh
deleted file mode 100644
index d3fd1bb..0000000
--- a/tests/generate_crlf.sh
+++ /dev/null
@@ -1,73 +0,0 @@
-#!/usr/bin/env bash
-
-set -e
-
-if [ "$1" == "" -o "$2" == "" ]; then
- echo "usage: $0 crlfrepo directory [tempdir]"
- exit 1
-fi
-
-input=$1
-output=$2
-tempdir=$3
-
-set -u
-
-create_repo() {
- local input=$1
- local output=$2
- local tempdir=$3
- local systype=$4
- local autocrlf=$5
- local attr=$6
-
- local worktree="${output}/${systype}/autocrlf_${autocrlf}"
-
- if [ "$attr" != "" ]; then
- local attrdir=`echo $attr | sed -e "s/ /,/g" | sed -e "s/=/_/g"`
- worktree="${worktree},${attrdir}"
- fi
-
- if [ "$tempdir" = "" ]; then
- local gitdir="${worktree}/.git"
- else
- local gitdir="${tempdir}/generate_crlf_${RANDOM}"
- fi
-
- echo "Creating ${worktree}"
- mkdir -p "${worktree}"
-
- git clone --no-checkout --quiet --bare "${input}/.gitted" "${gitdir}"
- git --work-tree="${worktree}" --git-dir="${gitdir}" config core.autocrlf ${autocrlf}
-
- if [ "$attr" != "" ]; then
- echo "* ${attr}" >> "${worktree}/.gitattributes"
- fi
-
- git --work-tree="${worktree}" --git-dir="${gitdir}" checkout HEAD
-
- if [ "$attr" != "" ]; then
- rm "${worktree}/.gitattributes"
- fi
-
- if [ "$tempdir" != "" ]; then
- rm -rf "${gitdir}"
- fi
-}
-
-if [[ `uname -s` == MINGW* ]]; then
- systype="windows"
-else
- systype="posix"
-fi
-
-for autocrlf in true false input; do
- for attr in "" text text=auto -text crlf -crlf eol=lf eol=crlf \
- "text eol=lf" "text eol=crlf" \
- "text=auto eol=lf" "text=auto eol=crlf"; do
-
- create_repo "${input}" "${output}" "${tempdir}" \
- "${systype}" "${autocrlf}" "${attr}"
- done
-done
-
diff --git a/tests/resources/crlf_data/README b/tests/resources/crlf_data/README
new file mode 100644
index 0000000..2347e12
--- /dev/null
+++ b/tests/resources/crlf_data/README
@@ -0,0 +1,2 @@
+This test data was generated using the `tests/resources/generate_crlf.sh`
+script. Please see that script for usage information.
diff --git a/tests/resources/generate_crlf.sh b/tests/resources/generate_crlf.sh
new file mode 100755
index 0000000..7053454
--- /dev/null
+++ b/tests/resources/generate_crlf.sh
@@ -0,0 +1,85 @@
+#!/usr/bin/env bash
+#
+# This script will generate the test corpus for CR/LF data using git;
+# we create files with all possible line ending varieties (all LF, all
+# CRLF, mixed, etc) on all the possible line ending configurations
+# (`core.autocrlf=true`, `text=auto` in gitattributes, etc). This
+# allows us to validate that our configuration will match byte-for-byte
+# the configuration that git produces.
+#
+# To update the test resource data, from the test resource directory:
+# git rm -r ./crlf_data
+# sh ./generate_crlf.sh ./crlf ./crlf_data /tmp/crlf_gitdirs
+# git add ./crlf_data
+
+set -e
+
+if [ "$1" == "" -o "$2" == "" ]; then
+ echo "usage: $0 crlfrepo directory [tempdir]"
+ exit 1
+fi
+
+input=$1
+output=$2
+tempdir=$3
+
+set -u
+
+create_repo() {
+ local input=$1
+ local output=$2
+ local tempdir=$3
+ local systype=$4
+ local autocrlf=$5
+ local attr=$6
+
+ local worktree="${output}/${systype}/autocrlf_${autocrlf}"
+
+ if [ "$attr" != "" ]; then
+ local attrdir=`echo $attr | sed -e "s/ /,/g" | sed -e "s/=/_/g"`
+ worktree="${worktree},${attrdir}"
+ fi
+
+ if [ "$tempdir" = "" ]; then
+ local gitdir="${worktree}/.git"
+ else
+ local gitdir="${tempdir}/generate_crlf_${RANDOM}"
+ fi
+
+ echo "Creating ${worktree}"
+ mkdir -p "${worktree}"
+
+ git clone --no-checkout --quiet --bare "${input}/.gitted" "${gitdir}"
+ git --work-tree="${worktree}" --git-dir="${gitdir}" config core.autocrlf ${autocrlf}
+
+ if [ "$attr" != "" ]; then
+ echo "* ${attr}" >> "${worktree}/.gitattributes"
+ fi
+
+ git --work-tree="${worktree}" --git-dir="${gitdir}" checkout HEAD
+
+ if [ "$attr" != "" ]; then
+ rm "${worktree}/.gitattributes"
+ fi
+
+ if [ "$tempdir" != "" ]; then
+ rm -rf "${gitdir}"
+ fi
+}
+
+if [[ `uname -s` == MINGW* ]]; then
+ systype="windows"
+else
+ systype="posix"
+fi
+
+for autocrlf in true false input; do
+ for attr in "" text text=auto -text crlf -crlf eol=lf eol=crlf \
+ "text eol=lf" "text eol=crlf" \
+ "text=auto eol=lf" "text=auto eol=crlf"; do
+
+ create_repo "${input}" "${output}" "${tempdir}" \
+ "${systype}" "${autocrlf}" "${attr}"
+ done
+done
+