t/t7003-filter-branch.sh

   1 #!/bin/sh
   2
   3 test_description='git filter-branch'
   4 . ./test-lib.sh
   5
   6 test_expect_success 'setup' '
   7         test_commit A &&
   8         GIT_COMMITTER_DATE="@0 +0000" GIT_AUTHOR_DATE="@0 +0000" &&
   9         test_commit --notick B &&
  10         git checkout -b branch B &&
  11         test_commit D &&
  12         mkdir dir &&
  13         test_commit dir/D &&
  14         test_commit E &&
  15         git checkout master &&
  16         test_commit C &&
  17         git checkout branch &&
  18         git merge C &&
  19         git tag F &&
  20         test_commit G &&
  21         test_commit H
  22 '
  23 # * (HEAD, branch) H
  24 # * G
  25 # *   Merge commit 'C' into branch
  26 # |\
  27 # | * (master) C
  28 # * | E
  29 # * | dir/D
  30 # * | D
  31 # |/
  32 # * B
  33 # * A
  34
  35
  36 H=$(git rev-parse H)
  37
  38 test_expect_success 'rewrite identically' '
  39         git filter-branch branch
  40 '
  41 test_expect_success 'result is really identical' '
  42         test $H = $(git rev-parse HEAD)
  43 '
  44
  45 test_expect_success 'rewrite bare repository identically' '
  46         (git config core.bare true && cd .git &&
  47          git filter-branch branch > filter-output 2>&1 &&
  48         ! fgrep fatal filter-output)
  49 '
  50 git config core.bare false
  51 test_expect_success 'result is really identical' '
  52         test $H = $(git rev-parse HEAD)
  53 '
  54
  55 TRASHDIR=$(pwd)
  56 test_expect_success 'correct GIT_DIR while using -d' '
  57         mkdir drepo &&
  58         ( cd drepo &&
  59         git init &&
  60         test_commit drepo &&
  61         git filter-branch -d "$TRASHDIR/dfoo" \
  62                 --index-filter "cp \"$TRASHDIR\"/dfoo/backup-refs \"$TRASHDIR\"" \
  63         ) &&
  64         grep drepo "$TRASHDIR/backup-refs"
  65 '
  66
  67 test_expect_success 'Fail if commit filter fails' '
  68         test_must_fail git filter-branch -f --commit-filter "exit 1" HEAD
  69 '
  70
  71 test_expect_success 'rewrite, renaming a specific file' '
  72         git filter-branch -f --tree-filter "mv D.t doh || :" HEAD
  73 '
  74
  75 test_expect_success 'test that the file was renamed' '
  76         test D = "$(git show HEAD:doh --)" &&
  77         ! test -f D.t &&
  78         test -f doh &&
  79         test D = "$(cat doh)"
  80 '
  81
  82 test_expect_success 'rewrite, renaming a specific directory' '
  83         git filter-branch -f --tree-filter "mv dir diroh || :" HEAD
  84 '
  85
  86 test_expect_success 'test that the directory was renamed' '
  87         test dir/D = "$(git show HEAD:diroh/D.t --)" &&
  88         ! test -d dir &&
  89         test -d diroh &&
  90         ! test -d diroh/dir &&
  91         test -f diroh/D.t &&
  92         test dir/D = "$(cat diroh/D.t)"
  93 '
  94
  95 git tag oldD HEAD~4
  96 test_expect_success 'rewrite one branch, keeping a side branch' '
  97         git branch modD oldD &&
  98         git filter-branch -f --tree-filter "mv B.t boh || :" D..modD
  99 '
 100
 101 test_expect_success 'common ancestor is still common (unchanged)' '
 102         test "$(git merge-base modD D)" = "$(git rev-parse B)"
 103 '
 104
 105 test_expect_success 'filter subdirectory only' '
 106         mkdir subdir &&
 107         touch subdir/new &&
 108         git add subdir/new &&
 109         test_tick &&
 110         git commit -m "subdir" &&
 111         echo H > A.t &&
 112         test_tick &&
 113         git commit -m "not subdir" A.t &&
 114         echo A > subdir/new &&
 115         test_tick &&
 116         git commit -m "again subdir" subdir/new &&
 117         git rm A.t &&
 118         test_tick &&
 119         git commit -m "again not subdir" &&
 120         git branch sub &&
 121         git branch sub-earlier HEAD~2 &&
 122         git filter-branch -f --subdirectory-filter subdir \
 123                 refs/heads/sub refs/heads/sub-earlier
 124 '
 125
 126 test_expect_success 'subdirectory filter result looks okay' '
 127         test 2 = $(git rev-list sub | wc -l) &&
 128         git show sub:new &&
 129         test_must_fail git show sub:subdir &&
 130         git show sub-earlier:new &&
 131         test_must_fail git show sub-earlier:subdir
 132 '
 133
 134 test_expect_success 'more setup' '
 135         git checkout master &&
 136         mkdir subdir &&
 137         echo A > subdir/new &&
 138         git add subdir/new &&
 139         test_tick &&
 140         git commit -m "subdir on master" subdir/new &&
 141         git rm A.t &&
 142         test_tick &&
 143         git commit -m "again subdir on master" &&
 144         git merge branch
 145 '
 146
 147 test_expect_success 'use index-filter to move into a subdirectory' '
 148         git branch directorymoved &&
 149         git filter-branch -f --index-filter \
 150                  "git ls-files -s | sed \"s-    -&newsubdir/-\" |
 151                   GIT_INDEX_FILE=\$GIT_INDEX_FILE.new \
 152                         git update-index --index-info &&
 153                   mv \"\$GIT_INDEX_FILE.new\" \"\$GIT_INDEX_FILE\"" directorymoved &&
 154         git diff --exit-code HEAD directorymoved:newsubdir
 155 '
 156
 157 test_expect_success 'stops when msg filter fails' '
 158         old=$(git rev-parse HEAD) &&
 159         test_must_fail git filter-branch -f --msg-filter false HEAD &&
 160         test $old = $(git rev-parse HEAD) &&
 161         rm -rf .git-rewrite
 162 '
 163
 164 test_expect_success 'author information is preserved' '
 165         : > i &&
 166         git add i &&
 167         test_tick &&
 168         GIT_AUTHOR_NAME="B V Uips" git commit -m bvuips &&
 169         git branch preserved-author &&
 170         (sane_unset GIT_AUTHOR_NAME &&
 171          git filter-branch -f --msg-filter "cat; \
 172                         test \$GIT_COMMIT != $(git rev-parse master) || \
 173                         echo Hallo" \
 174                 preserved-author) &&
 175         test 1 = $(git rev-list --author="B V Uips" preserved-author | wc -l)
 176 '
 177
 178 test_expect_success "remove a certain author's commits" '
 179         echo i > i &&
 180         test_tick &&
 181         git commit -m i i &&
 182         git branch removed-author &&
 183         git filter-branch -f --commit-filter "\
 184                 if [ \"\$GIT_AUTHOR_NAME\" = \"B V Uips\" ];\
 185                 then\
 186                         skip_commit \"\$@\";
 187                 else\
 188                         git commit-tree \"\$@\";\
 189                 fi" removed-author &&
 190         cnt1=$(git rev-list master | wc -l) &&
 191         cnt2=$(git rev-list removed-author | wc -l) &&
 192         test $cnt1 -eq $(($cnt2 + 1)) &&
 193         test 0 = $(git rev-list --author="B V Uips" removed-author | wc -l)
 194 '
 195
 196 test_expect_success 'barf on invalid name' '
 197         test_must_fail git filter-branch -f master xy-problem &&
 198         test_must_fail git filter-branch -f HEAD^
 199 '
 200
 201 test_expect_success '"map" works in commit filter' '
 202         git filter-branch -f --commit-filter "\
 203                 parent=\$(git rev-parse \$GIT_COMMIT^) &&
 204                 mapped=\$(map \$parent) &&
 205                 actual=\$(echo \"\$@\" | sed \"s/^.*-p //\") &&
 206                 test \$mapped = \$actual &&
 207                 git commit-tree \"\$@\";" master~2..master &&
 208         git rev-parse --verify master
 209 '
 210
 211 test_expect_success 'Name needing quotes' '
 212
 213         git checkout -b rerere A &&
 214         mkdir foo &&
 215         name="れれれ" &&
 216         >foo/$name &&
 217         git add foo &&
 218         git commit -m "Adding a file" &&
 219         git filter-branch --tree-filter "rm -fr foo" &&
 220         test_must_fail git ls-files --error-unmatch "foo/$name" &&
 221         test $(git rev-parse --verify rerere) != $(git rev-parse --verify A)
 222
 223 '
 224
 225 test_expect_success 'Subdirectory filter with disappearing trees' '
 226         git reset --hard &&
 227         git checkout master &&
 228
 229         mkdir foo &&
 230         touch foo/bar &&
 231         git add foo &&
 232         test_tick &&
 233         git commit -m "Adding foo" &&
 234
 235         git rm -r foo &&
 236         test_tick &&
 237         git commit -m "Removing foo" &&
 238
 239         mkdir foo &&
 240         touch foo/bar &&
 241         git add foo &&
 242         test_tick &&
 243         git commit -m "Re-adding foo" &&
 244
 245         git filter-branch -f --subdirectory-filter foo &&
 246         test $(git rev-list master | wc -l) = 3
 247 '
 248
 249 test_expect_success 'Tag name filtering retains tag message' '
 250         git tag -m atag T &&
 251         git cat-file tag T > expect &&
 252         git filter-branch -f --tag-name-filter cat &&
 253         git cat-file tag T > actual &&
 254         test_cmp expect actual
 255 '
 256
 257 faux_gpg_tag='object XXXXXX
 258 type commit
 259 tag S
 260 tagger T A Gger <tagger@example.com> 1206026339 -0500
 261
 262 This is a faux gpg signed tag.
 263 -----BEGIN PGP SIGNATURE-----
 264 Version: FauxGPG v0.0.0 (FAUX/Linux)
 265
 266 gdsfoewhxu/6l06f1kxyxhKdZkrcbaiOMtkJUA9ITAc1mlamh0ooasxkH1XwMbYQ
 267 acmwXaWET20H0GeAGP+7vow=
 268 =agpO
 269 -----END PGP SIGNATURE-----
 270 '
 271 test_expect_success 'Tag name filtering strips gpg signature' '
 272         sha1=$(git rev-parse HEAD) &&
 273         sha1t=$(echo "$faux_gpg_tag" | sed -e s/XXXXXX/$sha1/ | git mktag) &&
 274         git update-ref "refs/tags/S" "$sha1t" &&
 275         echo "$faux_gpg_tag" | sed -e s/XXXXXX/$sha1/ | head -n 6 > expect &&
 276         git filter-branch -f --tag-name-filter cat &&
 277         git cat-file tag S > actual &&
 278         test_cmp expect actual
 279 '
 280
 281 test_expect_success 'Tag name filtering allows slashes in tag names' '
 282         git tag -m tag-with-slash X/1 &&
 283         git cat-file tag X/1 | sed -e s,X/1,X/2, > expect &&
 284         git filter-branch -f --tag-name-filter "echo X/2" &&
 285         git cat-file tag X/2 > actual &&
 286         test_cmp expect actual
 287 '
 288
 289 test_expect_success 'Prune empty commits' '
 290         git rev-list HEAD > expect &&
 291         test_commit to_remove &&
 292         git filter-branch -f --index-filter "git update-index --remove to_remove.t" --prune-empty HEAD &&
 293         git rev-list HEAD > actual &&
 294         test_cmp expect actual
 295 '
 296
 297 test_expect_success '--remap-to-ancestor with filename filters' '
 298         git checkout master &&
 299         git reset --hard A &&
 300         test_commit add-foo foo 1 &&
 301         git branch moved-foo &&
 302         test_commit add-bar bar a &&
 303         git branch invariant &&
 304         orig_invariant=$(git rev-parse invariant) &&
 305         git branch moved-bar &&
 306         test_commit change-foo foo 2 &&
 307         git filter-branch -f --remap-to-ancestor \
 308                 moved-foo moved-bar A..master \
 309                 -- -- foo &&
 310         test $(git rev-parse moved-foo) = $(git rev-parse moved-bar) &&
 311         test $(git rev-parse moved-foo) = $(git rev-parse master^) &&
 312         test $orig_invariant = $(git rev-parse invariant)
 313 '
 314
 315 test_expect_success 'automatic remapping to ancestor with filename filters' '
 316         git checkout master &&
 317         git reset --hard A &&
 318         test_commit add-foo2 foo 1 &&
 319         git branch moved-foo2 &&
 320         test_commit add-bar2 bar a &&
 321         git branch invariant2 &&
 322         orig_invariant=$(git rev-parse invariant2) &&
 323         git branch moved-bar2 &&
 324         test_commit change-foo2 foo 2 &&
 325         git filter-branch -f \
 326                 moved-foo2 moved-bar2 A..master \
 327                 -- -- foo &&
 328         test $(git rev-parse moved-foo2) = $(git rev-parse moved-bar2) &&
 329         test $(git rev-parse moved-foo2) = $(git rev-parse master^) &&
 330         test $orig_invariant = $(git rev-parse invariant2)
 331 '
 332
 333 test_expect_success 'setup submodule' '
 334         rm -fr ?* .git &&
 335         git init &&
 336         test_commit file &&
 337         mkdir submod &&
 338         submodurl="$PWD/submod" &&
 339         ( cd submod &&
 340           git init &&
 341           test_commit file-in-submod ) &&
 342         git submodule add "$submodurl" &&
 343         git commit -m "added submodule" &&
 344         test_commit add-file &&
 345         ( cd submod && test_commit add-in-submodule ) &&
 346         git add submod &&
 347         git commit -m "changed submodule" &&
 348         git branch original HEAD
 349 '
 350
 351 orig_head=`git show-ref --hash --head HEAD`
 352
 353 test_expect_success 'rewrite submodule with another content' '
 354         git filter-branch --tree-filter "test -d submod && {
 355                                          rm -rf submod &&
 356                                          git rm -rf --quiet submod &&
 357                                          mkdir submod &&
 358                                          : > submod/file
 359                                          } || :" HEAD &&
 360         test $orig_head != `git show-ref --hash --head HEAD`
 361 '
 362
 363 test_expect_success 'replace submodule revision' '
 364         git reset --hard original &&
 365         git filter-branch -f --tree-filter \
 366             "if git ls-files --error-unmatch -- submod > /dev/null 2>&1
 367              then git update-index --cacheinfo 160000 0123456789012345678901234567890123456789 submod
 368              fi" HEAD &&
 369         test $orig_head != `git show-ref --hash --head HEAD`
 370 '
 371
 372 test_done