From 003b33a8ad686ee4a0d0b36635bfd6aba940b24a Mon Sep 17 00:00:00 2001 From: David Aguilar Date: Sun, 31 May 2009 01:35:52 -0700 Subject: [PATCH] diff: generate pretty filenames in prep_temp_blob() Naturally, prep_temp_blob() did not care about filenames. As a result, GIT_EXTERNAL_DIFF and textconv generated filenames such as ".diff_XXXXXX". This modifies prep_temp_blob() to generate user-friendly filenames when creating temporary files. Diffing "name.ext" now generates "XXXXXX_name.ext". Signed-off-by: David Aguilar Signed-off-by: Junio C Hamano --- cache.h | 2 ++ diff.c | 12 +++++++++++- path.c | 16 ++++++++++++++++ t/t4020-diff-external.sh | 9 +++++++++ 4 files changed, 38 insertions(+), 1 deletion(-) diff --git a/cache.h b/cache.h index b8503ad91..871c9844e 100644 --- a/cache.h +++ b/cache.h @@ -614,6 +614,8 @@ extern int is_empty_blob_sha1(const unsigned char *sha1); int git_mkstemp(char *path, size_t n, const char *template); +int git_mkstemps(char *path, size_t n, const char *template, int suffix_len); + /* * NOTE NOTE NOTE!! * diff --git a/diff.c b/diff.c index dcfbcb021..4d0a5b9ae 100644 --- a/diff.c +++ b/diff.c @@ -1964,8 +1964,16 @@ static void prep_temp_blob(const char *path, struct diff_tempfile *temp, { int fd; struct strbuf buf = STRBUF_INIT; + struct strbuf template = STRBUF_INIT; + char *path_dup = xstrdup(path); + const char *base = basename(path_dup); - fd = git_mkstemp(temp->tmp_path, PATH_MAX, ".diff_XXXXXX"); + /* Generate "XXXXXX_basename.ext" */ + strbuf_addstr(&template, "XXXXXX_"); + strbuf_addstr(&template, base); + + fd = git_mkstemps(temp->tmp_path, PATH_MAX, template.buf, + strlen(base) + 1); if (fd < 0) die("unable to create temp-file: %s", strerror(errno)); if (convert_to_working_tree(path, @@ -1981,6 +1989,8 @@ static void prep_temp_blob(const char *path, struct diff_tempfile *temp, temp->hex[40] = 0; sprintf(temp->mode, "%06o", mode); strbuf_release(&buf); + strbuf_release(&template); + free(path_dup); } static struct diff_tempfile *prepare_temp_file(const char *name, diff --git a/path.c b/path.c index 8a0a6741f..047fdb0a1 100644 --- a/path.c +++ b/path.c @@ -139,6 +139,22 @@ int git_mkstemp(char *path, size_t len, const char *template) return mkstemp(path); } +/* git_mkstemps() - create tmp file with suffix honoring TMPDIR variable. */ +int git_mkstemps(char *path, size_t len, const char *template, int suffix_len) +{ + const char *tmp; + size_t n; + + tmp = getenv("TMPDIR"); + if (!tmp) + tmp = "/tmp"; + n = snprintf(path, len, "%s/%s", tmp, template); + if (len <= n) { + errno = ENAMETOOLONG; + return -1; + } + return mkstemps(path, suffix_len); +} int validate_headref(const char *path) { diff --git a/t/t4020-diff-external.sh b/t/t4020-diff-external.sh index 072000128..4ea42e00d 100755 --- a/t/t4020-diff-external.sh +++ b/t/t4020-diff-external.sh @@ -136,6 +136,15 @@ test_expect_success 'GIT_EXTERNAL_DIFF with more than one changed files' ' GIT_EXTERNAL_DIFF=echo git diff ' +test_expect_success 'GIT_EXTERNAL_DIFF generates pretty paths' ' + touch file.ext && + git add file.ext && + echo with extension > file.ext && + GIT_EXTERNAL_DIFF=echo git diff file.ext | grep ......_file\.ext && + git update-index --force-remove file.ext && + rm file.ext +' + echo "#!$SHELL_PATH" >fake-diff.sh cat >> fake-diff.sh <<\EOF cat $2 >> crlfed.txt -- 2.30.2