From d824cbba02a4061400a0e382f9bd241fbbff34f0 Mon Sep 17 00:00:00 2001 From: Thomas Rast Date: Sat, 27 Jun 2009 17:58:46 +0200 Subject: Convert existing die(..., strerror(errno)) to die_errno() Change calls to die(..., strerror(errno)) to use the new die_errno(). In the process, also make slight style adjustments: at least state _something_ about the function that failed (instead of just printing the pathname), and put paths in single quotes. Signed-off-by: Thomas Rast Signed-off-by: Junio C Hamano --- builtin-commit.c | 23 ++++++++++------------- 1 file changed, 10 insertions(+), 13 deletions(-) (limited to 'builtin-commit.c') diff --git a/builtin-commit.c b/builtin-commit.c index 41e222d267..88c51bdd3a 100644 --- a/builtin-commit.c +++ b/builtin-commit.c @@ -438,8 +438,8 @@ static int prepare_to_commit(const char *index_file, const char *prefix) hook_arg1 = "message"; } else if (logfile) { if (strbuf_read_file(&sb, logfile, 0) < 0) - die("could not read log file '%s': %s", - logfile, strerror(errno)); + die_errno("could not read log file '%s'", + logfile); hook_arg1 = "message"; } else if (use_message) { buffer = strstr(use_message_buffer, "\n\n"); @@ -450,16 +450,15 @@ static int prepare_to_commit(const char *index_file, const char *prefix) hook_arg2 = use_message; } else if (!stat(git_path("MERGE_MSG"), &statbuf)) { if (strbuf_read_file(&sb, git_path("MERGE_MSG"), 0) < 0) - die("could not read MERGE_MSG: %s", strerror(errno)); + die_errno("could not read MERGE_MSG"); hook_arg1 = "merge"; } else if (!stat(git_path("SQUASH_MSG"), &statbuf)) { if (strbuf_read_file(&sb, git_path("SQUASH_MSG"), 0) < 0) - die("could not read SQUASH_MSG: %s", strerror(errno)); + die_errno("could not read SQUASH_MSG"); hook_arg1 = "squash"; } else if (template_file && !stat(template_file, &statbuf)) { if (strbuf_read_file(&sb, template_file, 0) < 0) - die("could not read %s: %s", - template_file, strerror(errno)); + die_errno("could not read '%s'", template_file); hook_arg1 = "template"; } @@ -472,8 +471,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix) fp = fopen(git_path(commit_editmsg), "w"); if (fp == NULL) - die("could not open %s: %s", - git_path(commit_editmsg), strerror(errno)); + die_errno("could not open '%s'", git_path(commit_editmsg)); if (cleanup_mode != CLEANUP_NONE) stripspace(&sb, 0); @@ -497,7 +495,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix) } if (fwrite(sb.buf, 1, sb.len, fp) < sb.len) - die("could not write commit template: %s", strerror(errno)); + die_errno("could not write commit template"); strbuf_release(&sb); @@ -940,8 +938,8 @@ int cmd_commit(int argc, const char **argv, const char *prefix) pptr = &commit_list_insert(lookup_commit(head_sha1), pptr)->next; fp = fopen(git_path("MERGE_HEAD"), "r"); if (fp == NULL) - die("could not open %s for reading: %s", - git_path("MERGE_HEAD"), strerror(errno)); + die_errno("could not open '%s' for reading", + git_path("MERGE_HEAD")); while (strbuf_getline(&m, fp, '\n') != EOF) { unsigned char sha1[20]; if (get_sha1_hex(m.buf, sha1) < 0) @@ -952,8 +950,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix) strbuf_release(&m); if (!stat(git_path("MERGE_MODE"), &statbuf)) { if (strbuf_read_file(&sb, git_path("MERGE_MODE"), 0) < 0) - die("could not read MERGE_MODE: %s", - strerror(errno)); + die_errno("could not read MERGE_MODE"); if (!strcmp(sb.buf, "no-ff")) allow_fast_forward = 0; } -- cgit v1.2.1 From 0721c314a5c8fddc877140ab5a333c42c62f780d Mon Sep 17 00:00:00 2001 From: Thomas Rast Date: Sat, 27 Jun 2009 17:58:47 +0200 Subject: Use die_errno() instead of die() when checking syscalls Lots of die() calls did not actually report the kind of error, which can leave the user confused as to the real problem. Use die_errno() where we check a system/library call that sets errno on failure, or one of the following that wrap such calls: Function Passes on error from -------- -------------------- odb_pack_keep open read_ancestry fopen read_in_full xread strbuf_read xread strbuf_read_file open or strbuf_read_file strbuf_readlink readlink write_in_full xwrite Signed-off-by: Thomas Rast Signed-off-by: Junio C Hamano --- builtin-commit.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'builtin-commit.c') diff --git a/builtin-commit.c b/builtin-commit.c index 88c51bdd3a..4bcce06fbf 100644 --- a/builtin-commit.c +++ b/builtin-commit.c @@ -434,7 +434,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix) if (isatty(0)) fprintf(stderr, "(reading log message from standard input)\n"); if (strbuf_read(&sb, 0, 0) < 0) - die("could not read log from standard input"); + die_errno("could not read log from standard input"); hook_arg1 = "message"; } else if (logfile) { if (strbuf_read_file(&sb, logfile, 0) < 0) @@ -964,8 +964,9 @@ int cmd_commit(int argc, const char **argv, const char *prefix) /* Finally, get the commit message */ strbuf_reset(&sb); if (strbuf_read_file(&sb, git_path(commit_editmsg), 0) < 0) { + int saved_errno = errno; rollback_index_files(); - die("could not read commit message"); + die("could not read commit message: %s", strerror(saved_errno)); } /* Truncate the message just before the diff, if any. */ -- cgit v1.2.1